Zyxel OLT2412 [115/326] Chapter 13 spanning tree protocol

Zyxel OLT2412 [115/326] Chapter 13 spanning tree protocol
Chapter 13 Spanning Tree Protocol
OLT2412 User’s Guide
115
4 Enables STP on port 2 (on the uplink card in slot 3) with a path cost of 150.
5 Sets the priority for port 2 to 20.
This example shows the current STP settings.
The following table describes the labels in this display.
OLT2412(config)# spanning-tree
OLT2412(config)# spanning-tree priority 0
OLT2412(config)# spanning-tree hello-time 4 maximum-age 20 forward-delay 15
OLT2412(config)# spanning-tree xe-3-2 path-cost 150
OLT2412(config)# spanning-tree xe-3-2 priority 20
OLT2412# show spanning-tree config
Bridge Info:
(a)BridgeID: 8000-001349aefb7a
(b)TimeSinceTopoChange: 9
(c)TopoChangeCount: 0
(d)TopoChange: 0
(e)DesignatedRoot: 8000-001349aefb7a
(f)RootPathCost: 0
(g)RootPort: 0x0000
(h)MaxAge: 20 (seconds)
(i)HelloTime: 2 (seconds)
(j)ForwardDelay: 15 (seconds)
(k)BridgeMaxAge: 20 (seconds)
(l)BridgeHelloTime: 2 (seconds)
(m)BridgeForwardDelay: 15 (seconds)
(n)TransmissionLimit: 3
(o)ForceVersion: 2
Table 55 show spanning-tree config
LABEL DESCRIPTION
BridgeID This field displays the unique identifier for this bridge, consisting of bridge priority
plus MAC address.
TimeSinceTopoChange This field displays the time since the spanning tree was last reconfigured.
TopoChangeCount This field displays the number of times the spanning tree has been reconfigured.
TopoChange This field indicates whether or not the current topology is stable.
0: The current topology is stable.
1: The current topology is changing.
DesignatedRoot This field displays the unique identifier for the root bridge, consisting of bridge
priority plus MAC address.
RootPathCost This field displays the path cost from the root port on this OLT to the root switch.
RootPort This field displays the priority and number of the port on the OLT through which
this OLT must communicate with the root of the Spanning Tree.
MaxAge This field displays the maximum time (in seconds) the root switch can wait without
receiving a configuration message before attempting to reconfigure.
HelloTime This field displays the time interval (in seconds) at which the root switch transmits
a configuration message.
ForwardDelay This field displays the time (in seconds) the root switch will wait before changing
states (that is, listening to learning to forwarding).
BridgeMaxAge This field displays the maximum time (in seconds) the OLT can wait without
receiving a configuration message before attempting to reconfigure.
BridgeHelloTime This field displays the time interval (in seconds) at which the OLT transmits a
configuration message.

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