Cisco WS-C2960S-24PD-L Software Guide - Page 171
Changing the BPDU Message Interval, Changing the Hello BPDU Interval
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Chapter 6 Configuring the System Configuring STP Changing the BPDU Message Interval Beginning in privileged EXEC mode, follow these steps to change the BPDU message interval (max age time). The stp-list is the list of VLANs to which the STP command applies. Step 1 Step 2 Command configure terminal spanning-tree [vlan stp-list] max-age seconds Step 3 end Step 4 show spanning-tree Purpose Enter global configuration mode. Specify the interval between messages the spanning tree receives from the root switch. The maximum age is the number of seconds a switch waits without receiving STP configuration messages before attempting a reconfiguration. Enter a number from 6 to 200. Return to privileged EXEC mode. Verify your entry. Changing the Hello BPDU Interval Beginning in privileged EXEC mode, follow these steps to change the hello BPDU interval (hello time). The stp-list is the list of VLANs to which the STP command applies. Step 1 Step 2 Command configure terminal spanning-tree [vlan stp-list] hello-time seconds Step 3 end Step 4 show spanning-tree Purpose Enter global configuration mode. Specify the interval between hello BPDUs. Hello messages show that the switch is active. Enter a number from 1 to 10. Return to privileged EXEC mode. Verify your entry. Changing the Forwarding Delay Time Beginning in privileged EXEC mode, follow these steps to change the forwarding delay time. The stp-list is the list of VLANs to which the STP command applies. Step 1 Step 2 Command configure terminal spanning-tree [vlan stp-list] forward-time seconds Step 3 end Step 4 show spanning-tree Purpose Enter global configuration mode. Specify the forwarding time for the specified spanning-tree instance. The forward delay is the number of seconds a port waits before changing from its STP learning and listening states to the forwarding state. Enter a number from 4 to 200. The default for IEEE is 15 seconds; the default for IBM is 4 seconds. Return to privileged EXEC mode. Verify your entry. 78-6511-08 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-43