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Monitoring Bridge Groups

You can use show commands to display information about the bridge groups configured on your router.

show bridge

Use to display configuration and statistics information for the specified bridge group.
To display information about the MAC address table and bridge interfaces, use the all keyword.
Field descriptions
- BridgeGroup—Name assigned to the bridge group
- Bridge Mode—Bridging capability currently enabled, either concurrent routing and bridging (CRB) or default bridging
- Aging Time—Length of time, in seconds, that a MAC address entry can remain in the forwarding table
- Learning—Whether acquisition of dynamically learned MAC addresses is currently enabled or disabled
- Max Learn—Maximum number of dynamic MAC addresses that the bridge group can learn
- Link Status Snmp Traps—Whether SNMP link status processing is enabled or disabled for all bridge interfaces in the bridge group
- Subscriber Policy—Name of the subscriber policy currently in effect for the bridge group
- Protocol Actions—When CRB is enabled, displays the protocols (IP, MPLS, or PPPoE) for which explicit routing has been configured
- Port Count—Number of ports (interfaces) currently configured for the bridge group; this value typically matches the Interface Count
- Interface Count—Number of bridge group interfaces currently configured for the bridge group
- Address Table—Displays the current static and dynamic entries in the MAC address table
  - Address—MAC address of the entry
  - Action—How the bridge group handles this entry: forward or discard
  - Interface—Interface type and specifier on which the entry will be forwarded; this value does not appear for entries that are discarded
  - Age—Length of time that a dynamic entry has been in the forwarding table; this value does not appear for static entries
- Interfaces—Displays statistics information for each bridge group interface; the entries for each interface are preceded by the interface type and specifier (for example, ATM3/3.1)
  - Port Number—Bridge group port number on which this interface resides
  - Operational Status—Operational status of the physical interface: Up, Down, LowerLayerDown, NotPresent
  - Admin Status—State of the physical interface: Up, Down
  - Snmp Link Status Trap—Whether SNMP link status processing is enabled or disabled for the specified bridge interface
  - Max Learn—Maximum number of dynamic MAC addresses that the bridge group interface can learn
  - Subscriber Policy—Name of the subscriber policy currently in effect for the bridge group interface
  - In Octets—Number of octets received on this interface
  - In Frames—Number of frames received on this interface
  - In Discards—Number of incoming packets discarded on this interface
  - In Errors—Number of incoming errors received on this interface
  - Out Octets—Number of octets transmitted on this interface
  - Out Frames—Number of frames transmitted on this interface
  - Out Discards—Number of outgoing packets discarded on this interface
  - Out Errors—Number of outgoing errors on this interface
  - queue—Hardware packet queue associated with the specified traffic class and interface
  - Queue length—Length of the queue, in bytes
  - Forwarded packets, Bytes—Number of packets and bytes forwarded on this queue
  - Dropped committed packets, Bytes—Number of committed packets and bytes that were dropped
  - Dropped conformed packets, Bytes—Number of conformed packets and bytes that were dropped
  - Dropped exceeded packets, Bytes—Number of exceeded packets and bytes that were dropped

Example 1—Displays configuration settings for the specified bridge group

host1#show bridge westford01
  BridgeGroup: westford01
        Bridge Mode:            CRB
        Aging Time:             300 secs
        Learning:               Enabled
        Max Learn:              Unlimited
        Link Status Snmp Traps: Disabled
        Subscriber Policy:      default Subscriber
        Protocol Actions:
           Route  IP
           Route  PPPoE
        Port Count:             1
        Interface Count:        1

Example 2—Displays information about configuration settings, MAC address table entries, and bridge group interfaces for the specified bridge group

host1#show bridge westford01 all
  BridgeGroup: westford01
        Bridge Mode:            CRB
        Aging Time:             300 secs
        Learning:               Enabled
        Max Learn:              Unlimited
        Link Status Snmp Traps: Disabled
        Subscriber Policy:      default Subscriber
        Protocol Actions:
           Route  IP
           Route  PPPoE
        Port Count:             1
        Interface Count:        1

  Address Table:
   Address         Action         Interface          Age
--------------   ----------   -------------------   -----
1011.22b2.333c   forward      ATM3/3.1               ---
1234.abcd.5678   discard      ---                    ---

  Interfaces:
    ATM3/3.1
      Port Number: 1
      Operational Status: LowerLayerDown
      Admin Status: Up
      Snmp Link Status Trap: Disabled
      Max Learn: Unlimited
      Subscriber Policy: default Subscriber
      Statistics:
         In Octets:    0
         In Frames:    0
         In Discards:  0
         In Errors:    0
         Out Octets:   0
         Out Frames:   0
         Out Discards: 0
         Out Errors:   0
      queue 0: traffic class best-effort, bound to bridge     ATM3/3.1 

        Queue length 0 Bytes
        Forwarded packets 0, Bytes 0
        Dropped committed packets 0, Bytes 0
        Dropped conformed packets 0, Bytes 0
        Dropped exceeded packets 0, Bytes 0

See show bridge.

show bridge groups

Use to display configuration information for all bridge groups currently configured on your router.
To display the configuration settings for all bridge groups on your router, use the details keyword.
Field descriptions
- BridgeGroup—Name assigned to the bridge group
- Bridge Mode—Bridging capability currently enabled, either concurrent routing and bridging (CRB) or default bridging
- Aging Time—Length of time, in seconds, that a MAC address entry can remain in the forwarding table
- Learning—Whether acquisition of dynamically learned MAC addresses is currently enabled or disabled
- Max Learn—Maximum number of dynamic MAC addresses that the bridge group can learn
- Link Status Snmp Traps—Whether SNMP link status processing is enabled or disabled for all bridge interfaces in the bridge group
- Subscriber Policy—Name of the subscriber policy currently in effect for the bridge group
- Protocol Actions—When CRB is enabled, displays the protocols (IP, MPLS, or PPPoE) for which explicit routing has been configured
- Port Count—Number of ports (interfaces) currently configured for the bridge group; this value typically matches the Interface Count
- Interface Count—Number of bridge group interfaces currently configured for the bridge group

Example 1—Displays the names of the bridge groups configured on your router

host1#show bridge groups
  BridgeGroup: westford02
  BridgeGroup: westford01

Example 2—Displays the configuration settings for each bridge group on your router

host1#show bridge groups details
  BridgeGroup: westford02
        Bridge Mode:            CRB
        Aging Time:             300 secs
        Learning:               Enabled
        Max Learn:              Unlimited
        Link Status Snmp Traps: Disabled
        Subscriber Policy:      client01
        Protocol Actions:
           Route  IP
           Route  PPPoE
        Port Count:             0
        Interface Count:        0
  BridgeGroup: westford01
        Bridge Mode:            CRB
        Aging Time:             300 secs
        Learning:               Enabled
        Max Learn:              Unlimited
        Link Status Snmp Traps: Disabled
        Subscriber Policy:      default Subscriber
        Protocol Actions:
        Port Count:             1
        Interface Count:        1

See show bridge groups.

show bridge port

Use to display configuration, statistics, and status information for all ports (interfaces) or for a specified port associated with a bridge group.
To display only the port number, interface identifier, and status for each port, use the brief keyword.
Field descriptions
- Port Number—Bridge group port number on which this interface resides
- Operational Status—Operational status of the physical interface: Up, Down, LowerLayerDown, NotPresent
- Admin Status—State of the physical interface: Up, Down
- Snmp Link Status Trap—Whether SNMP link status processing is enabled or disabled for the specified bridge interface
- Max Learn—Maximum number of dynamic MAC addresses that the bridge group interface can learn
- Subscriber Policy—Name of the subscriber policy currently in effect for the bridge group interface
- Statistics—Displays statistics information for the specified port
  - In Octets—Number of octets received on this interface
  - In Frames—Number of frames received on this interface
  - In Discards—Number of incoming packets discarded on this interface
  - In Errors—Number of incoming errors received on this interface
  - Out Octets—Number of octets transmitted on this interface
  - Out Frames—Number of frames transmitted on this interface
  - Out Discards—Number of outgoing packets discarded on this interface
  - Out Errors—Number of outgoing errors on this interface
- queue—Hardware packet queue associated with the specified traffic class and interface
  - Queue length—Length of the queue, in bytes
  - Forwarded packets, Bytes—Number of packets and bytes forwarded on this queue
  - Dropped committed packets, Bytes—Number of committed packets and bytes that were dropped
  - Dropped conformed packets, Bytes—Number of conformed packets and bytes that were dropped
  - Dropped exceeded packets, Bytes—Number of exceeded packets and bytes that were dropped
- Using the brief keyword displays the following fields:
  - Port—Bridge group port number on which this interface resides
  - Interface—Interface type and specifier associated with the port (for example, ATM3/3.1)
  - Status—Operational status of the physical interface: Up, Down, LowerLayerDown, NotPresent

Example 1—Displays configuration, statistics, and status information for all ports currently associated with the bridge group

host1#show bridge westford01 port 1
    ATM3/3.1
      Port Number: 1
      Operational Status: LowerLayerDown
      Admin Status: Up
      Snmp Link Status Trap: Disabled
      Max Learn: Unlimited
      Subscriber Policy: default Subscriber
      Statistics:
         In Octets:    0
         In Frames:    0
         In Discards:  0
         In Errors:    0
         Out Octets:   0
         Out Frames:   0
         Out Discards: 0
         Out Errors:   0
      queue 0: traffic class best-effort, bound to bridge     ATM3/3.1 

        Queue length 0 Bytes
        Forwarded packets 0, Bytes 0
        Dropped committed packets 0, Bytes 0
        Dropped conformed packets 0, Bytes 0
        Dropped exceeded packets 0, Bytes 0

Example 2—Uses the brief keyword to display summary information for each port

host1#show bridge westford01 port brief
 Port            Interface              Status
------   -------------------------   ------------
1        ATM3/3.1                    LowerLayerDown

See show bridge port.

show bridge table

Use to display information about dynamic and static entries in the MAC address table for the specified bridge group.
To display only static address entries, use the static keyword.
To display only dynamic address entries, use the dynamic keyword.
Field descriptions
- Bridge—Name of the bridge group for which the MAC address table is displayed
- Address—MAC address of the entry
- Action—Specifies how the bridge group handles this entry: forward or discard
- Interface—Interface type and specifier on which the entry will be forwarded; this value does not appear for entries that are discarded
- Age—Length of time that a dynamic entry has been in the forwarding table; this value does not appear for static entries

Example

host1#show bridge westford01 table static
  Bridge: westford01 MAC Address Table
   Address         Action         Interface          Age
--------------   ----------   -------------------   -----
1a11.22b2.333c   forward      ATM3/3.1               ---
1234.abcd.5678   discard      ---                    ---

See show bridge table.

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