Configuring The Hello Time; Configuring The Forwarding-Delay Time For A Vlan - Cisco WS-C3550-12G Software Configuration Manual
Multilayer switch
Hide thumbs
Also See for WS-C3550-12G:
- User manual (436 pages) ,
- Manual (278 pages) ,
- Datasheet (19 pages)
Table of Contents
Advertisement
Chapter 10
Configuring STP
Configuring the Hello Time
You can configure the interval between the generation of configuration messages by the root switch by
changing the STP hello time.
Note
Exercise care when using this command. For most situations, we recommend that you use the
spanning-tree vlan vlan-id root primary and the spanning-tree vlan vlan-id root secondary global
configuration commands to modify the hello time.
Beginning in privileged EXEC mode, follow these steps to configure the STP hello time of a VLAN:
Command
Step 1
configure terminal
Step 2
spanning-tree vlan vlan-id hello-time seconds
Step 3
end
Step 4
show spanning-tree vlan vlan-id bridge [brief]
Step 5
copy running-config startup-config
To return the switch to its default setting, use the no spanning-tree vlan vlan-id hello-time global
configuration command.
Configuring the Forwarding-Delay Time for a VLAN
Beginning in privileged EXEC mode, follow these steps to configure the STP forwarding-delay time for
a VLAN:
Command
Step 1
configure terminal
Step 2
spanning-tree vlan vlan-id forward-time
seconds
Step 3
end
Step 4
show spanning-tree vlan vlan-id bridge [brief] Verify your entries.
Step 5
copy running-config startup-config
78-11194-03
Purpose
Enter global configuration mode.
Configure the hello time of a VLAN. The hello time is the
interval between the generation of configuration messages by
the root switch. These messages mean that the switch is alive.
For vlan-id, the range is 1 to 1005. Do not enter leading
•
zeros.
For seconds, the range is 1 to 10 seconds; the default is 2
•
seconds.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
Configure the forward time of a VLAN. The forward delay is the
number of seconds a port waits before changing from its STP
learning and listening states to the forwarding state.
For vlan-id, the range is 1 to 1005. Do not enter leading zeros.
•
For seconds, the range is 4 to 30 seconds; the default is 15
•
seconds.
Return to privileged EXEC mode.
(Optional) Save your entries in the configuration file.
Catalyst 3550 Multilayer Switch Software Configuration Guide
Configuring Basic STP Features
10-29
- Quick Links:
- Table of Contents
- Front Panel View
- Ip Addresses
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
