Brocade Virtual ADX MIB Reference (Supporting ADX v03.1.00) - Manual (Page 88)

76 Brocade Virtual ADX MIB Reference
53-1003312-01
Port STP configuration groups
snIfStpPortState
brcdIp.1.1.3.5.2.1.8
Syntax: Integer Read only Shows the port’s current state as defined by application of the
Spanning Tree Protocol. This state controls what action a port takes
when it receives a frame.
•
disabled(1) – The port is not participating in STP. This can occur
when the port is disconnected or STP is disabled on the port.
•
blocking(2) – STP has blocked Layer 2 traffic on this port to
prevent a loop. The device or VLAN can reach the root bridge using
another port, whose state is forwarding(5). When a port is in this
state, the port does not transmit or receive user frames, but the
port does continue to receive STP BPDUs.
•
listening(3) – STP is responding to a topology change and this port
is listening for a BPDU from neighboring bridge(s) in order to
determine the new topology. No user frames are transmitted or
received during this state.
•
learning(4) – The port has passed the listening state and will
change to the blocking or forwarding state, depending on the
results of STP’s reconvergence. The port does not transmit or
receive user frames during this state. However, the device can
learn the MAC addresses of frames that the port receives during
this state and make corresponding entries in the MAC table.
•
forwarding(5) – STP is allowing the port to send and receive
frames.
•
broken(6) – Ports that are malfunctioning are placed into this
state by the bridge.
•
preforwarding(7) – The port is in an RSTP pre-forwarding mode.
snIfStpPortDesignatedC
ost
brcdIp.1.1.3.5.2.1.9
Syntax: Integer Read only The cost to the root bridge as advertised by the designated bridge that
is connected to this port. If the designated bridge is the root bridge
itself, then the cost is 0. The identity of the designated bridge is shown
in the Design Bridge field.
This value is compared to the Root Path Cost field in the receivedbridge
PDUs.
snIfStpPortDesignatedR
oot
brcdIp.1.1.3.5.2.1.10
Syntax: BridgeId Read only The root bridge as recognized on this port. The value is the same as the
root bridge ID listed in the Root ID field.
Shows the unique ID of the root bridge. The root bridge is recorded as
the root in the configuration BPDUs, which are transmitted by the
designated bridge for the segment to which the port is attached.
snIfStpPortDesignatedB
ridge
brcdIp.1.1.3.5.2.1.11
Syntax: BridgeId Read only Shows the ID of the designated bridge. The designated bridge is the
device that connects the network segment to the root bridge.
snIfStpPortDesignatedP
ort
brcdIp.1.1.3.5.2.1.12
Syntax: Octet string Read only Shows the ID of the port on the designated bridge that connects to the
root bridge on the network.
This object has two octets.
snIfStpPortAdminRstp
brcdIp.1.1.3.5.2.1.13
Syntax: Integer Read-write Enables or disables RSTP on a port that is a member of a VLAN:
•
true(1) – RSTP is enabled
•
false(2) – RSTP is not enabled; therefore, this object is not
writable.
snIfStpPortProtocolMigr
ation
brcdIp.1.1.3.5.2.1.14
Syntax: Integer Read-write This value can be one of the following:
•
true(1) – The port is operating in RSTP version 2 mode. It will
transmit RSTP BPDUs.
•
false(2) – The port is not operating in RSTP version 2 mode.
Name, OID, and Syntax Access Description