ZyXEL Communications OLT2406, User Manual

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Chapter 63 Spanning Tree Protocol
OLT2406 User’s Guide
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63.3.1 STP and RSTP Command Examples
This example configures STP in the following ways:
1
Enables STP on the OLT.
2
Sets the bridge priority of the OLT to 0.
3
Sets the Hello Time to 4, Maximum Age to 20 and Forward Delay to 15.
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.
OLT2406(config)# spanning-tree
OLT2406(config)# spanning-tree priority 0
OLT2406(config)# spanning-tree hello-time 4 maximum-age 20 forward-delay
15
OLT2406(config)# spanning-tree msc-1-2 path-cost 150
OLT2406(config)# spanning-tree msc-1-2 priority 20
OLT2406# 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: 4 (seconds)
(j)ForwardDelay: 15 (seconds)
(k)BridgeMaxAge: 20 (seconds)
(l)BridgeHelloTime: 2 (seconds)
(m)BridgeForwardDelay: 15 (seconds)
(n)TransmissionLimit: 3
(o)ForceVersion: 2
Table 236 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.