Cisco 813-RF - 813 Router Spezifikationen PDF herunterladen (Seite 37)

CHAPTER 3

Spanning Tree

Configuring Spanning Tree

To change the STP priority value, use the following:

Switch (config)# spanning-tree vlan vlan_no. priority value

To configure a switch as root without manually changing priority values, use the following:

Switch (config)# spanning-tree vlan vlan_no.

root

{primary | secondary}

To change the STP port cost for an access port, use the following:

Switch(config-if)# spanning-tree cost

value

To change the STP port cost for a VLAN on a trunk port, use the following:

Switch(config-if)# spanning-tree vlan vlan_no. cost

value

To display STP information for a VLAN, use the following:

Switch# show spanning-tree vlan vlan_no.

To display the STP information for an interface, use the following:

Switch # show spanning-tree interface interface_no. [detail]

To verify STP timers, use the following:

Switch #

show

spanning-tree bridge brief

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CCNP SWITCH 642-813 Quick Reference by Denise Donohue

9781587140112.qxd 11/23/09 11:34 AM Page 37

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Cisco 813-RF - 813 Router Spezifikationen Seite 37