Install guide

30 Enhancements to Virtual Bridge (VLAN) MIB Support Release Note
Software Version 2.7.4
C613-10444-00 REV A
Enhancements to Virtual Bridge (VLAN)
MIB Support
RFC 2674, Definitions of Managed Objects for Bridges with Traffic Classes, Multicast
Filtering and Virtual LAN Extensions, defines a portion of the Management
Information Base (MIB) for managing IEEE Standard 802.1Q VLANs.
Objects defined in this MIB reside in the mib(1) sub-tree, under the dot1dBridge
sub-tree defined in RFC 1493, and have the object identifier qBridgeMIBObjects
({ mib-2 dot1dBridge(17) qBridgeMIB(7) 1 }).
Previous software versions supported the following objects and groups in
the MIB:
■ All objects in the dot1qBase Group.
■ The dot1qVlanNumDeletes object in the dot1qVlan Group.
■ The dot1qVlanCurrentTable object in the dot1qVlan Group.
■ The dot1qVlanStaticTable object in the dot1qVlan Group.
■ The dot1qNextFreeLocalVlanIndex object in the dot1qVlan Group.
■ The dot1qPortVlanTable object in the dot1qVlan Group.
Software Version 2.7.4 adds support for the dot1qFdbTable and dot1qTpFdbTable
tables, and modifies the use of the dot1qVlanFdbId object in the
dot1qVlanCurrentEntry table.
dot1qFdbTable contains configuration and control information for each Filtering
Database currently operating on the device. dot1qFdbTable has an entry for each
configured VLAN, containing the following objects:
■ dot1qFdbId
The identity of this Filtering Database. Returns the VLAN ID.
■ dot1qFdbDynamicCount
The current number of dynamic entries in this Filtering Database. Returns
the number of MAC addresses used by the VLAN.
dot1qTpFdbTable contains information about unicast entries for which the
device has forwarding and/or filtering information. dot1qTpFdbTable has an
entry for each VLAN ID/MAC address pair, containing the following objects:
■ dot1qTpFdbAddress
A unicast MAC address for which the device has forwarding and/or
filtering information.
■ dot1qTpFdbPort
Either the value ‘0’, or the port number of the port on which a frame having
a source address equal to the value of the corresponding instance of
dot1qTpFdbAddress has been seen. Returns the same value as the equivalent
dot1dTpFdbPort object.
■ dot1qTpFdbStatus
The status of this entry; one of other(1), invalid(2), learned(3), self(4), or
mgmt(5). Returns the same value as the equivalent dot1dTpFdbStatus object.