Configuring The Hello Time - Cisco nexus 5000 series Configuration Manual

Configuring Multiple Spanning Tree
Command or Action
This example shows how to configure the priority of the bridge to 4096 for MSTI 5:
switch# configure terminal
switch(config)# spanning-tree mst 5 priority 4096

Configuring the Hello Time

You can configure the interval between the generation of configuration messages by the root bridge for all
instances on the switch by changing the hello time.
Exercise care when using this command. For most situations, we recommend that you enter the
Note
spanning-tree mst instance-id root primary and the spanning-tree mst instance-id root secondary
configuration commands to modify the hello time.
SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# spanning-tree mst hello-time seconds
DETAILED STEPS
Command or Action
Step 1 switch# configure terminal
Step 2 switch(config)# spanning-tree mst
hello-time seconds
OL-25842-01
Purpose
• For priority, the range is from 0 to 61440 in increments of 4096; the default
is 32768. A lower number indicates that the switch will most likely be chosen
as the root bridge.
Priority values are 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672, 32768,
36864, 40960, 45056, 49152, 53248, 57344, and 61440. The system rejects all
other values.
Purpose
Enters global configuration mode.
Configures the hello time for all MST instances. The hello time is the
interval between the generation of configuration messages by the root
bridge. These messages mean that the switch is alive. For seconds, the
range is from 1 to 10, and the default is 2 seconds.
Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.1(3)N1(1)
Configuring the Hello Time
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