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A3Com-Bridge-r3-MIB by vendor 3Com

A3Com-Bridge-r3-MIB file content

The SNMP protocol is used to for conveying information and commands between agents and managing entities. SNMP uses the User Datagram Protocol (UDP) as the transport protocol for passing data between managers and agents. The reasons for using UDP for SNMP are, firstly it has low overheads in comparison to TCP, which uses a 3-way hand shake for connection. Secondly, in congested networks, SNMP over TCP is a bad idea because TCP in order to maintain reliability will flood the network with retransmissions.

Management information (MIB) is represented as a collection of managed objects. These objects together form a virtual information base called MIB. An agent may implement many MIBs, but all agents must implement a particular MIB called MIB-II [16]. This standard defines variables for things such as interface statistics (interface speeds, MTU, octets sent, octets received, etc.) as well as various other things pertaining to the system itself (system location, system contact, etc.). The main goal of MIB-II is to provide general TCP/IP management information.

Use ActiveXperts Network Monitor 2019 to import vendor-specific MIB files, inclusing A3Com-Bridge-r3-MIB.


Vendor: 3Com
Mib: A3Com-Bridge-r3-MIB  [download]  [view objects]
Tool: ActiveXperts Network Monitor 2019 [download]    (ships with advanced SNMP/MIB tools)
--
-- This MIB is for 3Com intermediate systems that support bridging
--
--
-- The 3Com Enterprise Products Proprietary MIB Extensions
--
-- Copyright 3Com Corporation, 1993. All rights reserved.
--
-- changes FOR 8.0 (r2 of MIB)*****************************************
-- 01-jun-94: kxy deprecated X25 queue size, X25 vc limit, & X25 vc timer
--            objects.
--
-- changes FOR 8.2 (r3 of MIB)*****************************************
-- 10-feb-95: ehk added HoldTime, MinAccPri, RtDisc, and GwCont objects
-- 24-apr-95: kxy updated ACCESS of a3ComBrgSrRDPort to read-only
-- 18-May-95: kxy updated DEFVAL for a3ComBrgSrGwContEncapMode
--
-- changes FOR 8.3 (r4 of MIB)*****************************************
-- 29-Sep-95: ehk added two objects for use by SmartFiltering feature
--            These are opaque to normal nm requests.
--
--


          A3Com-Bridge-r3-MIB DEFINITIONS ::= BEGIN

          IMPORTS
                  enterprises
                      FROM RFC1155-SMI
                  MacAddress
                      FROM RFC1286-MIB
                  OBJECT-TYPE
                          FROM RFC-1212;

          --
          -- This MIB is for 3Com systems that offer a Bridging
          -- service
          --
          --

          a3Com         OBJECT IDENTIFIER ::= { enterprises 43 }
          brouterMIB    OBJECT IDENTIFIER ::= { a3Com 2 }
          a3ComBridge   OBJECT IDENTIFIER ::= { brouterMIB 9 }

          SMDSAddress ::= OCTET STRING (SIZE (8))
          -- the 60-bit SMDS address, preceded by 4 bits with the
          -- following values:
          -- "1100" when representing an individual address
          -- "1110" when representing a group address

          RowStatus ::= INTEGER {
                         -- the following two values are states
                         -- these values can be read or written
                         active(1),
                         notInService(2),

                         -- the following value is a state:         
                         -- this value may be read, but not written 
                         notReady(3),                               

                         -- the following three values are actions
                         -- these values can be written, but are never read
                         createAndGo(4),
                         createAndWait(5),
                         destroy(6)
          }

          --This data type, which has the same semantics as the RowStatus
          --textual convention used in SNMPv2, is used to add and 
          --delete entries from a table.

          --The tables in this MIB allow a subset of the functionality
          --provided by the RowStatus textual convention.  In particular
          --row creation is allowed using only the createAndGo method.

          --That is, when adding entries to this table, this object
          --must be set to createAndGo(4).  The instance identifier
          --for this object will define the values of the columns 
          --that make up the index.  

          --In the same PDU, the appropriate remaining columns
          --of that row must be set as well.  The agent
          --will immediately set the value of this object to
          --active(1) if the row is correct.  If not, the agent
          --will refuse the SET request and return an
          --error code.

          --To modify an existing entry, it must be removed
          --an another entry with the desired changes added. 
                       
          --To remove an entry, set the value of this object
          --to destroy(6).

--
-- Group Definitions
--
          a3ComBrgGen   OBJECT IDENTIFIER ::= { a3ComBridge 1 }
          a3ComBrgStp   OBJECT IDENTIFIER ::= { a3ComBridge 2 }
          a3ComBrgSr    OBJECT IDENTIFIER ::= { a3ComBridge 3 }

          X121Address ::= OCTET STRING (SIZE(0..17))

-- 0 to 17 bytes in length containing the ASCII
-- characters [0-9], each octet contains one digit of
-- the address


--
--  This first group, a3ComBrgGen, contains objects that control
--  parameters relating to the general operation of the bridge.
--

          a3ComBrgCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                        bridging   (1),
                        noBridging (2)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object determines whether bridging is performed
                  by this system.  If this is set to noBridging (2),
                  all functions associated with bridging are disabled,
                  including Spanning Tree, Learning, and Source Routing."
              REFERENCE 
                  "NETBuilder Ref. Guide, Bridge Service parameter: Control"
              DEFVAL { noBridging }
              ::= { a3ComBrgGen 1 }

          a3ComBrgAgeCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                        aging   (1),
                        noAging (2)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object determines whether nodes that have not
                  transmitted packets for a specified amount of time
                  are deleted from the forwarding table.  If this
                  object is set to aging (1), entries in the forwarding
                  table are removed after dot1dTpAgingTime seconds.
                  This is useful in environments where nodes may be
                  moved from one network to another.  Setting this object 
                  to noAging (2), however, improves performance."
              REFERENCE 
                  "NETBuilder Ref. Guide, Bridge Service parameter: CONTrol"
              DEFVAL { aging }
              ::= { a3ComBrgGen 2 }

          a3ComBrgFwallCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                        firewall   (1),
                        noFirewall (2)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object is important when the system is performing
                  both bridging and routing.  When this is set to
                  firewall (1), the bridge discards unicast packets
                  of a protocol that is being routed (other than the
                  unicast packets addressed to the bridge itself).
                  If this is set to noFirewall, the bridge forwards 
                  those packets."
              REFERENCE 
                  "NETBuilder Ref. Guide, Bridge Service parameter: Control"
              DEFVAL { firewall }
              ::= { a3ComBrgGen 3 }

          a3ComBrgLearnCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                        learn   (1),
                        noLearn (2)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object determines whether the bridge creates
                  and updates entries in its forwarding tables."
              REFERENCE 
                  "NETBuilder Ref. Guide, Bridge Service parameter: Control"
              DEFVAL { learn }
              ::= { a3ComBrgGen 4 }

          a3ComBrgForwardCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                        forward   (1),
                        noForward (2)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object determines whether the bridge forwards
                  packets.  This has no effect on other bridging
                  related functions, such as Spanning Tree, Learning, 
                  and Source Routing.  Setting this object to
                  noForward (2), allows isolation of the attached
                  networks for diagnostic purposes."
              REFERENCE 
                  "NETBuilder Ref. Guide, Bridge Service parameter: Control"
              DEFVAL { forward }
              ::= { a3ComBrgGen 5 }

          a3ComBrgAppleCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                        enable  (1),
                        disable (2)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object enables the bridge to forward
                  AppleTalk packets between Ethernet, FDDI, and
                  token ring networks.  The AppleTalk packets
                  require encapsulation over FDDI networks.
                  If AppleTalk packets are to be translated
                  the same way as other Ethernet packets are
                  translated, this parameter must be disabled (2).

                  If this object is enabled, the original format
                  of both AT-1 (Ethernet) and AT-2 (SNAP) packets
                  are preserved when bridging between Ethernets 
                  over an FDDI backbone.  If this is disabled,
                  AT-2 packets are converted to Ethernet format
                  before going across the FDDI backbone."
              REFERENCE 
                  "NETBuilder Ref. Guide, Bridge Service parameter: AppleTalk"
              DEFVAL { enable }
              ::= { a3ComBrgGen 6 }
            
          a3ComBrgFwTblCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                        other        (1),
                        dynToStatic  (2),
                        delStatic    (3),
                        delDyn       (4)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object is used to trigger actions taken on the
                  static forwarding table.  When this object is set to
                  dynToStatic (2), all dynamically learned entries
                  in the forwarding table are marked static.  When
                  this object is set to delStatic (3), all statically
                  learned entries are deleted.  When this object is set to
                  delDyn (4), all dynamically learned entries are deleted.
                  When a GET request is received for this object, the 
                  value other (1) is returned." 
              REFERENCE
                  "NETBuilder Ref. Guide, ADD -BRidge ROUte All,
                   DEL -Bridge ROUte All, FLush -BRidge AllRoutes."
              ::= { a3ComBrgGen 7 }

          a3ComBrgFwTblSize  OBJECT-TYPE
              SYNTAX  INTEGER (1..64)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object returns the size of the bridge
                  forwarding table in units of 2^(9+n) where
                  n is the value of this object.  Thus, if this
                  object has the value 2, then the bridge 
                  forwarding table has 2048 entries.

                  If this value is changed, via a set, the 
                  new value will take affect only after the
                  bridging service is disabled and re-enabled."
              ::= { a3ComBrgGen 8 }

          a3ComBrgBLimitTimer  OBJECT-TYPE
              SYNTAX  INTEGER {
                          disabled         (1),
                          timer400ms      (2),
                          timer600ms      (3),
                          timer800ms      (4),
                          timer1000ms     (5)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object is used to select the broadcast limit
                  feature sample interval.  That is, this object 
                  contains the value of the time interval over which
                  the number of broadcast packets per second are calculated.  
                  If that number exceeds the value of a3ComBrgBroadCastLimit
                  for a particular port, the bridge will stop forwarding
                  all broadcast packets on that port for the rest of
                  the time interval."
              REFERENCE 
                  "NETBuilder Reference Guide, Bridge Service Parameter:
                  BLimitTimer"
              DEFVAL { disabled }
              ::= { a3ComBrgGen 9 }
--
-- The following tables contain bridge forwarding information
--

          a3ComBrgStExtTable  OBJECT-TYPE
              SYNTAX  SEQUENCE OF A3ComBrgStExtEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "This table is an extension of the dot1dStaticTable
                  from the Bridge MIB, rfc1286.  One additional
                  column has been defined to identify the proper wide 
                  area address when bridging over a wide area port."
              REFERENCE
                  "Bridge MIB, RFC1286, page 33"
              ::= { a3ComBrgGen 10 }
   
          a3ComBrgStExtEntry  OBJECT-TYPE
              SYNTAX  A3ComBrgStExtEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "An extension to the dot1dStaticTable from rfc1286."
              INDEX  { a3ComBrgStExtAdd, a3ComBrgStExtRcvPort }
              ::= { a3ComBrgStExtTable 1 }

          A3ComBrgStExtEntry ::=
              SEQUENCE {
                  a3ComBrgStExtAdd            MacAddress,
                  a3ComBrgStExtRcvPort        INTEGER, 
                  a3ComBrgStExtWaAddress      OCTET STRING
              }
               
          a3ComBrgStExtAdd  OBJECT-TYPE
              SYNTAX  MacAddress
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "A unicast MAC address for which the bridge has
                  forwarding and/or filtering information."
              REFERENCE
                  "dot1dStaticAddress, Bridge MIB, RFC1286, page 33"
              ::= { a3ComBrgStExtEntry 1 }

          a3ComBrgStExtRcvPort  OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "Either the value '0' or the port number of the
                  port from which a frame must be received in order
                  for this entry's filtering information to apply.
                  A value of zero indicates that this entry applies
                  on all ports of the bridge for which there is no
                  other applicable entry."
              REFERENCE
                  "dot1dStaticReceivePort, Bridge MIB, RFC1286, page 34"
              ::= { a3ComBrgStExtEntry 2 } 

          a3ComBrgStExtWaAddress  OBJECT-TYPE
              SYNTAX  OCTET STRING
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "When the destination port to which this table entry 
                  applies is a wide area port, this object is used to
                  identify the wide area address to use when forwarding
                  packets to this destination.  The type of address can
                  be determined by the ifType value corresponding to
                  the port identified by dot1dStaticAllowedToGoTo or
                  dot1dTpFdbPort.  If the port is not a wide area port, 
                  this object will contain a zero length string.

                  The representation of the addresses will follow the
                  convention used in standard MIBs.  For example,
                  Frame Relay DLCI's will be encoded as binary numbers
                  and placed in the OCTET STRING.  X.25 addresses, on
                  the other hand will be encoded as ASCII characters
                  [0..9], with each octet of the OCTET STRING containing
                  the ASCII representation of one digit."
              REFERENCE
                  "NETBuilder Ref. Guide, ADD -BRidge ROUte DLCI WanID"
              ::= { a3ComBrgStExtEntry 3 } 




          a3ComBrgFdbExtTable  OBJECT-TYPE
              SYNTAX  SEQUENCE OF A3ComBrgFdbExtEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "This table is an extension of the dot1dTpFdbTable
                  from the Bridge MIB, rfc1286.  One additional
                  column has been defined to identify the proper wide 
                  area address when bridging over a wide area port."
              REFERENCE
                  "Bridge MIB, RFC1286, page 29"
              ::= { a3ComBrgGen 11 }
   
          a3ComBrgFdbExtEntry  OBJECT-TYPE
              SYNTAX  A3ComBrgFdbExtEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "An extension to the dot1dTpFdbTable from rfc1286."
              INDEX  { a3ComBrgFdbExtAdd }
              ::= { a3ComBrgFdbExtTable 1 }

          A3ComBrgFdbExtEntry ::=
              SEQUENCE {
                  a3ComBrgFdbExtAdd            MacAddress,
                  a3ComBrgFdbExtWaAddress      OCTET STRING
              }
               
          a3ComBrgFdbExtAdd  OBJECT-TYPE
              SYNTAX  MacAddress
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "A unicast MAC address for which the bridge has
                  forwarding and/or filtering information."
              REFERENCE
                  "dot1dTpFdbAddress, Bridge MIB, RFC1286, page 30"
              ::= { a3ComBrgFdbExtEntry 1 }

          a3ComBrgFdbExtWaAddress  OBJECT-TYPE
              SYNTAX  OCTET STRING
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "When the port to which this table entry applies
                  is a wide area port, this object is used to
                  identify the wide area address to use when forwarding
                  packets to this destination.  The type of address can
                  be determined by the ifType value corresponding to
                  the port identified by dot1dTpFdbPort.  If the port
                  is not a wide area port, this object will contain
                  a zero length string."
              REFERENCE
                  "NETBuilder Ref. Guide, ADD -BRidge ROUte DLCI WanID"
              ::= { a3ComBrgFdbExtEntry 2 } 


--
-- The following table contains generic port information and
-- controls
--

          a3ComBrgPortTable  OBJECT-TYPE
              SYNTAX  SEQUENCE OF A3ComBrgPortEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "This table is an extension of the dot1dBasePortTable
                  from the Bridge MIB defined in RFC1286.  This table
                  contains generic information and control facilities
                  for every port that is associated with the bridge.
                  Transparent, source-route, and srt ports are included."
              ::= { a3ComBrgGen 12 }

          a3ComBrgPortEntry  OBJECT-TYPE
              SYNTAX  A3ComBrgPortEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "Each entry in this table contains information and
                  controls for a specific bridge port."
              REFERENCE
                  "dot1dBasePortTable, Bridge MIB, RFC1286, page 11"
              INDEX  { a3ComBrgPortIndex }
              ::= { a3ComBrgPortTable 1 }

          A3ComBrgPortEntry ::= 
              SEQUENCE {
                  a3ComBrgPortIndex      INTEGER,
                  a3ComBrgPortCtl        INTEGER,
                  a3ComBrgDstSecCtl      INTEGER,
                  a3ComBrgSrcSecCtl      INTEGER,
                  a3ComBrgX25Pid         INTEGER,
                  a3ComBrgX25Qsize       INTEGER,
                  a3ComBrgX25VcLimit     INTEGER,
                  a3ComBrgX25VcTimer     INTEGER,
                  a3ComBrgBroadCastLimit INTEGER,
                  a3ComBrgSmdsGroupAddr  SMDSAddress,
                  a3ComBrgX25ProfId      INTEGER
              }

          a3ComBrgPortIndex  OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "The port number of the port for which this
                  entry contains bridge management information."
              REFERENCE
                  "dot1dBasePortTable, Bridge MIB, RFC1286, page 11"
              ::= { a3ComBrgPortEntry 1 }
   
          a3ComBrgPortCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                         transparent   (1),  -- bridge only tr packets
                         sourceRoute   (2),  -- bridge only sr packets
                         srtEnabled    (3),  -- bridge both
                         noBridging    (4)   -- no bridging
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object controls which type(s) of packets
                  are bridged.  This has no affect on whether the
                  bridge participates in either the Spanning Tree
                  or Source Route Protocols."
              REFERENCE
                  "NETBuilder Ref. Guide, SETDefault !port -BRidge
                  BRidgeFunction = Enable, SETDefault !port -SRT
                  CONTrol = (SrcRouting|NoSrcRouting, Transparent|
                  NoTransparent)"
              DEFVAL { noBridging }
              ::= { a3ComBrgPortEntry 2 }

          a3ComBrgDstSecCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                         none    (1),
                         forward (2),
                         block   (3)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object is a security feature that allows the
                  control of packets sent to specific destinations.
                  If this object is set to forward (2), only those
                  packets for destination addresses listed in the static
                  forwarding table can be forwarded by this port.  If 
                  this object is set to block (3), any packet destined 
                  for an address listed in the static forwarding table is
                  blocked by this port.  Note, these actions are taken
                  by this port after it receives a packet from the network.
                  This does not apply to packets it forwards to the 
                  network."
              REFERENCE
                  "NETBuilder Ref. Guide, Bridge Service parameter: 
                  DStSecurity"
              DEFVAL { none }
              ::= { a3ComBrgPortEntry 3 }
                  
          a3ComBrgSrcSecCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                         none    (1),
                         forward (2),
                         block   (3)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object is a security feature that allows the
                  control of packets sent from specific source addresses.
                  If this object is set to forward (2), this port will
                  forward only those packets sent from addresses listed
                  in the static forwarding table for this port.  If this
                  object is set to block, this port will block every
                  packet sent by a station whose address is listed
                  in the static forwarding table for this port.  Note, 
                  these actions are taken by this port after it receives 
                  a packet from the network.  This does not apply to 
                  packets it forwards to the network."
              REFERENCE
                  "NETBuilder Ref. Guide, Bridge Service parameter: 
                  SRcSecurity"
              DEFVAL { none }
              ::= { a3ComBrgPortEntry 4 }

          a3ComBrgX25Pid  OBJECT-TYPE
              SYNTAX  INTEGER (1..255)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object applies to transparent bridging
                  over an X25 network.  It specifies the protocol
                  ID to be used in an outgoing X25 call."
              REFERENCE
                  "NETBuilder Ref. Guide, Bridge Service parameter: X25ProtID"
              DEFVAL { 221 }
              ::= { a3ComBrgPortEntry 5 }

          a3ComBrgX25Qsize  OBJECT-TYPE
              SYNTAX  INTEGER (1..128)
              ACCESS  read-write
              STATUS  deprecated
              DESCRIPTION
                  "This object applies to transparent bridging
                  over an X25 network.  It allows the specification
                  of the maximum number of packets that can be 
                  queued on any single virtual circuit to a 
                  specific DTE neighbor when the virtual circuit
                  on the X25 port is congested.

                  NOTE: this object is no longer supported by NETBuilders
                  running sw version 8.0 and greater."
              REFERENCE
                  "NETBuilder Ref. Guide, Bridge Service parameter: 
                  X25QueueSize"
              DEFVAL { 4 }
              ::= { a3ComBrgPortEntry 6 }

          a3ComBrgX25VcLimit  OBJECT-TYPE
              SYNTAX  INTEGER (0..15)
              ACCESS  read-write
              STATUS  deprecated
              DESCRIPTION
                  "This object allows the specification of the 
                  maximum number of virtual circuits to a 
                  specific DTE that can be established concurrently
                  for transparent bridging over an x25 network.

                  NOTE: this object is no longer supported by NETBuilders
                  running sw version 8.0 and greater."
              REFERENCE
                  "NETBuilder Ref. Guide, Bridge Service parameter: 
                  X25VCLimit"
              DEFVAL { 1 }
              ::= { a3ComBrgPortEntry 7 }

          a3ComBrgX25VcTimer  OBJECT-TYPE
              SYNTAX  INTEGER (1..512)
              ACCESS  read-write
              STATUS  deprecated
              DESCRIPTION
                  "This object specifies the maximum amount of
                  time, in minutes, that can elapse when there
                  is no activity on the x25 virtual circuit to a DTE
                  before it is cleared.

                  NOTE: this object is no longer supported by NETBuilders
                  running sw version 8.0 and greater."
              REFERENCE
                  "NETBuilder Ref. Guide, Bridge Service parameter: 
                  X25VCTimer"
              DEFVAL { 20 }
              ::= { a3ComBrgPortEntry 8 }

          a3ComBrgBroadCastLimit  OBJECT-TYPE
              SYNTAX  INTEGER (0..100000)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object specifies the maximum rate, in
                  packets per second, at which broadcast and
                  multicast packets are forwarded through this 
                  port.  If the number of these packets during
                  a single time interval (specified by 
                  a3ComBrgBLimitTimer) exceeds the number
                  allowed during that interval, as calculated
                  from the value of this object, all further
                  broadcast and multicast packets will be
                  discarded for the rest of the time interval.

                  If this object is set to zero, this feature
                  is disabled for this port.

                  Note, any changes to this object will only
                  take affect after the system is rebooted."
              REFERENCE
                  "NETBuilder Reference Guide, Bridge Service Parameter:
                  BroadCastLimit"
              DEFVAL { 0 }
              ::= { a3ComBrgPortEntry 9 }

          a3ComBrgSmdsGroupAddr  OBJECT-TYPE
              SYNTAX  SMDSAddress
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This identifies the SMDS Group Address that
                  is used by the bridge to transmit packets to
                  all the other bridges identified by this SMDS
                  Group Address.  This address is used as the SMDS
                  destination address when transmitting spanning tree
                  BPDU packets, all bridged broadcast and multicast
                  packets, and bridged packets containing a destination
                  address that has not yet been learned.

                  If the address is less than 8 Octets, the remaining
                  octets are padded with 0xFF's.

                  If there is no SMDS Group Address assigned, this object
                  will return all zeroes.

                  Note, bridging must be enabled for any sets made to this
                  object to be affected."
              REFERENCE
                  "NETBuilder Reference Guide, Bridge Service Parameter:
                  SMDSGroupAddress"
              ::= { a3ComBrgPortEntry 10 }

          a3ComBrgX25ProfId  OBJECT-TYPE
              SYNTAX  INTEGER(0..255)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
		 "This object specifies the X25 User ProfileID to be used for
		selecting a Virtual Circuit to send Bridged Packets. Range
		is 0..255. If the value specified is 0 then use the DTE Profile
		ID"
              DEFVAL { 0 }	 
              ::= { a3ComBrgPortEntry 14 }

--
-- This table stores a list of neighboring DTEs that support
-- transparent bridging over an X25 network
--

          a3ComBrgX25NbrTable  OBJECT-TYPE
              SYNTAX  SEQUENCE OF A3ComBrgX25NbrEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "This table specifies the DTE address of each
                  X25 neighbor that supports transparent bridging.
                  The bridge will forward to the neighbors defined in 
                  this table all broadcast packets and unknown 
                  unicast packets."
              REFERENCE
                  "NETBuilder Ref. Guilde, Bridge Service parameter: 
                  X25Neighbor"
              ::= { a3ComBrgGen 13 }

          a3ComBrgX25NbrEntry  OBJECT-TYPE
              SYNTAX  A3ComBrgX25NbrEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "Each entry contains the DTE address of an X25 neighbor."
              INDEX { a3ComBrgX25NbrPort, a3ComBrgX25NbrDTE }
              ::= { a3ComBrgX25NbrTable 1 }

          A3ComBrgX25NbrEntry ::= 
              SEQUENCE {
                  a3ComBrgX25NbrPort     INTEGER,
                  a3ComBrgX25NbrDTE      X121Address,
                  a3ComBrgX25NbrStatus   RowStatus
              }

          a3ComBrgX25NbrPort  OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "The bridge port to which this entry applies."
              ::= { a3ComBrgX25NbrEntry 1 }

          a3ComBrgX25NbrDTE  OBJECT-TYPE
              SYNTAX  X121Address
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "The X121 address of the neighbor DTE."
              ::= { a3ComBrgX25NbrEntry 2 }

          a3ComBrgX25NbrStatus  OBJECT-TYPE
              SYNTAX  RowStatus
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                   "This object is used to add and delete entries
                   in this table.  See the notes describing
                   RowStatus at the beginning of this MIB."
              ::= { a3ComBrgX25NbrEntry 3 }

--
-- Spanning Tree parameter group
--

          a3ComBrgStpMultAdd  OBJECT-TYPE
              SYNTAX  MacAddress
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "This is the multicast MAC address used by bridges
                  running the Spanning Tree Protocol."
              REFERENCE
                  "NETBuilder Ref. Guide, STP Service parameter: ADDRess"
              ::= { a3ComBrgStp 1 }

          a3ComBrgStpCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                         enabled   (1),
                         disabled  (2)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object is used to enable/disable the Spanning
                  Tree Protocol for the bridge as a whole."
              REFERENCE
                  "NETBuilder Ref. Guide, STP Service parameter: CONTrol"
              DEFVAL { enabled }
              ::= { a3ComBrgStp 2 }
              
          a3ComBrgStpHopCtl  OBJECT-TYPE
              SYNTAX  INTEGER {
                         hopReduce   (1),
                         noHopReduce (2)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object determines whether the bridge  
                  considers the number of hops needed to forward
                  a packet to the root bridge when it selects
                  a root port.  If hopReduce is selected, the
                  bridge increases its root path cost by 1.  If
                  noHopReduce is selected and two ports have the
                  same root path cost, the port that offers the least
                  number of hops might not be chosen as the root port."
              REFERENCE
                  "NETBuilder Ref. Guide, STP Service parameter: CONTrol"
              DEFVAL { noHopReduce }
              ::= { a3ComBrgStp 3 }

--
-- Source Routing parameter group
--
--    These parameters define how the bridge will behave
--    when bridging source routed packets.
--

          a3ComBrgSrMode  OBJECT-TYPE
              SYNTAX  INTEGER {
                         ieee            (1),
                         passiveBridging (2)
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This object defines the mode of source routing
                  in use on the bridge.  If ieee (1) is selected,
                  explorer frames are modified and the forwarding
                  path of the specifically routed frames is
                  determined from the routing information (RI) field.
                  If passiveBridging (2) is selected, the source
                  routed frames are bridged across the spanning
                  tree as if they were transparent frames without 
                  examining or updating the RI field.  When in 
                  passiveBridging mode, the same ring number should 
                  be assinged to all active ports of the bridge."
              REFERENCE
                  "NETBuilder Ref. Guide, SRT Service parameter: Mode"
              DEFVAL { ieee }
              ::= { a3ComBrgSr 1 } 



         a3ComBrgSrPortTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF A3ComBrgSrPortEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "This table contains port specific source routing
                  information."
              ::= { a3ComBrgSr 2 }

         a3ComBrgSrPortEntry OBJECT-TYPE
              SYNTAX  A3ComBrgSrPortEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "Each entry contains a set of information applied
                  to a specific bridge port."
              INDEX { a3ComBrgSrPort }
              ::= { a3ComBrgSrPortTable 1 }

         A3ComBrgSrPortEntry ::=
              SEQUENCE {
                  a3ComBrgSrPort               INTEGER,
                  a3ComBrgSrPortSTEHopCount    INTEGER,
                  a3ComBrgSrPortAREHopCount    INTEGER,
                  a3ComBrgSrPortHoldTime       INTEGER,
                  a3ComBrgSrPortMinAccessPrior INTEGER
              }

         a3ComBrgSrPort OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "This identifies the bridge port to which
                  the other objects in this entry apply."
              ::= { a3ComBrgSrPortEntry 1 }

         a3ComBrgSrPortSTEHopCount OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION 
                  "This object contains the maximum number of
                  routing descriptors (ie, hop count) for Spanning
                  Tree Explorer frames."
              ::= { a3ComBrgSrPortEntry 2 }

         a3ComBrgSrPortAREHopCount OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION 
                  "This object contains the maximum number of
                  routing descriptors (ie, hop count) for All
                  Routes Explorer frames."
              ::= { a3ComBrgSrPortEntry 3 }

         a3ComBrgSrPortHoldTime OBJECT-TYPE
              SYNTAX  INTEGER (1..1440)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION 
                  "This parameter specifies the time interval,
                  in minutes, that an inactive route entry can
                  reside in the source routing table."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: HoldTime"
              DEFVAL { 15 }
              ::= { a3ComBrgSrPortEntry 4 }

         a3ComBrgSrPortMinAccessPrior OBJECT-TYPE
              SYNTAX  INTEGER (0..6)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION 
                  "This parameter determines the minimum access
                  priority used for outoing frames on this port.
                  End systems usually have a low access priority
                  while bridges have a medium priority.  This
                  allows bridge, which typically handle larger
                  volumes of data, to get the token faster than
                  end systems.  If the user priority of the frame
                  is greateer than the minumum access priority, the 
                  user priority is used as the access priority.  The
                  user priority of the frame is determined by the
                  access priority of the incoming frame."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: MinAccessPrior"
              DEFVAL { 4 }
              ::= { a3ComBrgSrPortEntry 5 }





         a3ComBrgSrWanAddrTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF A3ComBrgSrWanAddrEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "A table containing mappings between Ring Number,
                  Bridge Number, and Wide Area Addresses.  This
                  information is learned from Explorer Frames sent
                  by end stations."
              ::= { a3ComBrgSr 3 }

         a3ComBrgSrWanAddrEntry OBJECT-TYPE
              SYNTAX  A3ComBrgSrWanAddrEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "Each entry contains a single Ring Number, Bridge
                  Number, Wide Area Address mapping."
              INDEX { a3ComBrgSrWAportIndex, a3ComBrgSrWAringNum, a3ComBrgSrWAbrgNum }
              ::= { a3ComBrgSrWanAddrTable 1 }

         A3ComBrgSrWanAddrEntry ::=
              SEQUENCE {
                  a3ComBrgSrWAportIndex    INTEGER,
                  a3ComBrgSrWAringNum      INTEGER,
                  a3ComBrgSrWAbrgNum       INTEGER,
                  a3ComBrgSrWAddress       OCTET STRING
              }

         a3ComBrgSrWAportIndex OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "This identifies the bridge port that is connected
                  to the ring identified by a3ComBrgSrWAringNum."
              ::= { a3ComBrgSrWanAddrEntry 1 } 

         a3ComBrgSrWAringNum OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "This identifies a specific wide area network.  When
                  a source route frame is bridged to this ring number,
                  and to the bridge identified by a3ComBrgSrWAbrgNum,
                  the Wide Area Address identified by the corresponding
                  instance of a3ComBrgSrWAddress is used to forward the
                  frame to the proper bridge."
              ::= { a3ComBrgSrWanAddrEntry 2 }

         a3ComBrgSrWAbrgNum OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "This identifies the bridge associated with the
                  Wide Area Address identified by a3ComBrgSrWAddress."
              ::= { a3ComBrgSrWanAddrEntry 3 }

         a3ComBrgSrWAddress OBJECT-TYPE
              SYNTAX  OCTET STRING
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "This identifies the Wide Area Address associated
                  with a specific ring number and bridge number.  These
                  are identified by the corresponding instances of
                  a3ComBrgSrWAringNum and a3ComBrgSrWAbrgNum."
              ::= { a3ComBrgSrWanAddrEntry 4 }



          a3ComBrgSrGwVirRing  OBJECT-TYPE
              SYNTAX  INTEGER (0..4095)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This parameter is used whenever SRTG is bridging packets
                  between TB and SR domains.  Before forwarding packets from
                  a TB domain, SRTG specifically adds this 'virtual' ring
                  number and its own bridge number to the source route
                  information of the destination station retrieved from the 
                  SRDB.  Thus from a source routing station's point of
                  view, the entire transparent bridge LAN appears as a single
                  source routed ring.  If this parameter has the value 0,
                  no virtual ring number is added."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: GatewayVRing"
              DEFVAL { 0 }
              ::= { a3ComBrgSr 4 } 




         a3ComBrgSrGwContTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF A3ComBrgSrGwContEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  ""
              ::= { a3ComBrgSr 5 }

         a3ComBrgSrGwContEntry OBJECT-TYPE
              SYNTAX  A3ComBrgSrGwContEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "Each entry in this table control the behavior of
                  the SRT Gateway feature for a specific port."
              INDEX { a3ComBrgSrGwContPort }
              ::= { a3ComBrgSrGwContTable 1 }

         A3ComBrgSrGwContEntry ::=
              SEQUENCE {
                  a3ComBrgSrGwContPort      INTEGER,
                  a3ComBrgSrGwCont          INTEGER,
                  a3ComBrgSrGwContEncapMode INTEGER,
                  a3ComBrgSrGwContAutoMode  INTEGER
              }

         a3ComBrgSrGwContPort OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "This identifies the bridge port to which the
                  other objects in this entry apply."
              ::= { a3ComBrgSrGwContEntry 1 }

         a3ComBrgSrGwCont OBJECT-TYPE
              SYNTAX  INTEGER {
                         enable  (1),
                         disable (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This parameter is used to enable or disable
                  the SRT Gateway feature for this port."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: GatewayControl"
              DEFVAL { disable }
              ::= { a3ComBrgSrGwContEntry 2 }


         a3ComBrgSrGwContEncapMode OBJECT-TYPE
              SYNTAX  INTEGER {
                         ieeeMode  (1),
                         etherMode (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This parameter is used to control how packets using 
                  Token Ring LLC-based protocols are converted when 
                  bridged to Ethernet LANs.  If this object has the
                  value 'ieeeMode', those packets will be translated 
                  into IEEE 802.2 frames.  Otherwise, they will be
                  converted into Ethernet Version II format.  Note,
                  if the type of frame used by the destination is
                  known (ie, if autoMode is selected and the station
                  is known), this parameter is ignored and the previously
                  seen frame type is used."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: GatewayControl"
              DEFVAL { ieeeMode }
              ::= { a3ComBrgSrGwContEntry 3 }

         a3ComBrgSrGwContAutoMode OBJECT-TYPE
              SYNTAX  INTEGER {
                         autoMode   (1),
                         noAutoMode (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This parameter specifies whether or not the encapsulation
                  format of each end stations is stored."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: GatewayControl"
              DEFVAL { autoMode }
              ::= { a3ComBrgSrGwContEntry 4 }


         a3ComBrgSrRDTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF A3ComBrgSrRDEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "This table specifies whether end system source routing
                  is enabled on for each port on the system.  There are
                  separate controls for each protocol that may use source
                  routing."
              ::= { a3ComBrgSr 6 }

         a3ComBrgSrRDEntry OBJECT-TYPE
              SYNTAX  A3ComBrgSrRDEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                  "Each entry applies to a specific port."
              INDEX { a3ComBrgSrRDPort }
              ::= { a3ComBrgSrRDTable 1 }

         A3ComBrgSrRDEntry ::=
              SEQUENCE {
                  a3ComBrgSrRDPort      INTEGER,
                  a3ComBrgSrRDAppleTalk INTEGER,
                  a3ComBrgSrRDClnp      INTEGER,
                  a3ComBrgSrRDDecNet    INTEGER,
                  a3ComBrgSrRDDlTest    INTEGER,
                  a3ComBrgSrRDIp        INTEGER,
                  a3ComBrgSrRDIpx       INTEGER,
                  a3ComBrgSrRDLlc2      INTEGER,
                  a3ComBrgSrRDVines     INTEGER
              }

         a3ComBrgSrRDPort OBJECT-TYPE
              SYNTAX  INTEGER 
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                  "This identifies the bridge port to which the
                  other objects in this entry apply."
              ::= { a3ComBrgSrRDEntry 1 }

         a3ComBrgSrRDAppleTalk OBJECT-TYPE
              SYNTAX  INTEGER {
                         appleTalk    (1),
                         noAppleTalk  (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This specifies whether route discovery is initiated
                  for AppleTalke end system packets.  This discovery
                  process occurs when a route to the end system does
                  not exist in the local source routing table.  If this
                  is set to noAppleTalk, all AppleTalk end system
                  packets are sent as transparent frames."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: RouteDiscovery"
              DEFVAL { noAppleTalk }
              ::= { a3ComBrgSrRDEntry 2 }

         a3ComBrgSrRDClnp OBJECT-TYPE
              SYNTAX  INTEGER {
                         clnp   (1),
                         noClnp (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This specifies whether route discovery is initiated
                  for CLNP end system packets.  This discovery
                  process occurs when a route to the end system does
                  not exist in the local source routing table.  If this
                  is set to noClnp, all CLNP end system packets are 
                  sent as transparent frames."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: RouteDiscovery"
              DEFVAL { noClnp }
              ::= { a3ComBrgSrRDEntry 3 }

         a3ComBrgSrRDDecNet OBJECT-TYPE
              SYNTAX  INTEGER {
                         decNet   (1),
                         noDecNet (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This specifies whether route discovery is initiated
                  for DECNET end system packets.  This discovery
                  process occurs when a route to the end system does
                  not exist in the local source routing table.  If this
                  is set to noDecNet, all DECNET end system
                  packets are sent as transparent frames."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: RouteDiscovery"
              DEFVAL { noDecNet }
              ::= { a3ComBrgSrRDEntry 4 }

         a3ComBrgSrRDDlTest OBJECT-TYPE
              SYNTAX  INTEGER {
                         dlTest   (1),
                         noDlTest (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This specifies whether route discovery is initiated
                  for DlTest end system packets.  This discovery
                  process occurs when a route to the end system does
                  not exist in the local source routing table.  If this
                  is set to noDlTest, all DlTest end system
                  packets are sent as transparent frames."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: RouteDiscovery"
              DEFVAL { noDlTest }
              ::= { a3ComBrgSrRDEntry 5 }

         a3ComBrgSrRDIp OBJECT-TYPE
              SYNTAX  INTEGER {
                         ip   (1),
                         noIp (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This specifies whether route discovery is initiated
                  for IP end system packets.  This discovery
                  process occurs when a route to the end system does
                  not exist in the local source routing table.  If this
                  is set to noIp, all IP end system packets are sent 
                  as transparent frames."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: RouteDiscovery"
              DEFVAL { noIp }
              ::= { a3ComBrgSrRDEntry 6 }

         a3ComBrgSrRDIpx OBJECT-TYPE
              SYNTAX  INTEGER {
                         ipx   (1),
                         noIpx (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This specifies whether route discovery is initiated
                  for IPX end system packets.  This discovery
                  process occurs when a route to the end system does
                  not exist in the local source routing table.  If this
                  is set to noIpx, all IPX end system packets are sent 
                  as transparent frames."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: RouteDiscovery"
              DEFVAL { noIpx }
              ::= { a3ComBrgSrRDEntry 7 }

         a3ComBrgSrRDLlc2 OBJECT-TYPE
              SYNTAX  INTEGER {
                         llc2   (1),
                         noLlc2 (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This specifies whether route discovery is initiated
                  for LLC2 end system packets.  This discovery
                  process occurs when a route to the end system does
                  not exist in the local source routing table.  If this
                  is set to noLlc2, all LLC2 end system packets are sent 
                   as transparent frames."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: RouteDiscovery"
              DEFVAL { noLlc2 }
              ::= { a3ComBrgSrRDEntry 8 }

         a3ComBrgSrRDVines OBJECT-TYPE
              SYNTAX  INTEGER {
                         vines   (1),
                         noVines (2) 
              }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                  "This specifies whether route discovery is initiated
                  for Vines end system packets.  This discovery
                  process occurs when a route to the end system does
                  not exist in the local source routing table.  If this
                  is set to noVines, all Vines end system
                  packets are sent as transparent frames."
              REFERENCE
                  "NETBuilder Ref. Guide, SR Service parameter: RouteDiscovery"
              DEFVAL { noVines }
              ::= { a3ComBrgSrRDEntry 9 }




	a3ComBrgSrTunVRing OBJECT-TYPE
	      SYNTAX INTEGER
	      ACCESS read-only
	      STATUS deprecated
	      DESCRIPTION
		  "This object is used only by the Smart Filtering feature."
              ::= { a3ComBrgSr 7 }

	a3ComBrgSrCNodeAddr OBJECT-TYPE
	      SYNTAX OCTET STRING
	      ACCESS read-only
	      STATUS deprecated
	      DESCRIPTION
		  "This object is used only by the Smart Filtering feature."
              ::= { a3ComBrgSr 8 }
END