A set of managed objects for optimizing access to
bridging related data from RFC 1493. This MIB is
modeled after portions of RFC 1493, adding VLAN ID
based indexing and bitmapped encoding of frequently
An indication of which ports are forwarding by spanning tree
for the specified VLAN. The octet string contains one bit
per port on the bridge for the specified VLAN.
Each bit within the octet string represents one port of the
device. The ordering of ports represented within the octet
string is in the same order as in the RFC 1493 dot1dStpPortTable.
The bit value interpretation is related to RFC 1493
dot1dStpPortState values is as follows:
1 = forwarding
0 = disabled, blocking, listening, learning, broken, or