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nx.os.and.cisco.nexus.switching.2nd.edition.1587143046

Nexus Switching 2nd Edition

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Example 14-13. VLAN Spanning Tree Configuration on Denmark<br />

Click here to view code image<br />

denmark# show run<br />

<br />

vlan 26,57,208-209<br />

<br />

spanning-tree mode pvst<br />

spanning-tree vlan 26,57,208-209,300-301 priority 8192<br />

Example 14-14. VLAN/Spanning Tree Configuration on Scotl<strong>and</strong><br />

Click here to view code image<br />

scotl<strong>and</strong># show run<br />

<br />

vlan 26,57,208-209<br />

<br />

spanning-tree mode pvst<br />

spanning-tree vlan 26,57,208-209,300-301 priority 16384<br />

These VLANs must be configured on the Nexus aggregation devices with priorities that will<br />

not initially cause an STP root change. Acme has ch<strong>os</strong>en to use 61440 as the initial value.<br />

This value has been determined to be higher than all configured devices <strong>and</strong> the default<br />

value of 32768 for m<strong>os</strong>t switches. Example 14-15 demonstrates the configuration that will<br />

be placed on Egypt <strong>and</strong> Italy.<br />

Example 14-15. VLAN/Spanning Tree Configuration on Egypt <strong>and</strong> Italy<br />

Click here to view code image<br />

egypt# sh run<br />

!Comm<strong>and</strong>: show running-config<br />

!Time: Sun Dec 2 19:32:57 2012<br />

<br />

vlan 26,57,208-209<br />

spanning-tree vlan 26,57,208-209 priority 61440

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