Alcatel-Lucent OmniAccess 5740 - Page 230

Per VLAN Spanning Tree +
Left running head:
Chapter name (automatic)
204
Beta Beta
OmniAccess 5740 Unified Services Gateway CLI Configuration Guide
Alcatel-Lucent
T
O SET FORWARD-TIME / HELLO-TIME / MAX-AGE / PRIORITY FOR PVST+
Note: - If you do not enter a VLAN-ID, by default it is taken as VLAN-1.
- The following formula has to be satisfied when configuring the forward-time, hello-
time and max-age:
(forward-time -1) * 2) >= max-age &&
max-age >= ((hello-time + 1) * 2)
E
XAMPLE
The following examples configures the PVST+ forward-time to 30, hello-time to 10
and maximum-age to 40:
ALU(config)# spanning-tree enable vlan 100 forward-time 30
ALU(config)# spanning-tree enable vlan 100 hello-time 10
ALU(config)# spanning-tree enable vlan 100 max-age 40
ALU(config)# spanning-tree enable vlan 100 priority 100
The following command resets the PVST+ forward-time/hello-time/maximum-age
to its default:
ALU(config)# no spanning-tree enable vlan 100 forward-time
ALU(config)# no spanning-tree enable vlan 100 hello-time
ALU(config)# no spanning-tree enable vlan 100 max-age
ALU(config)# no spanning-tree enable vlan 100 priority 100
Command (in CM)
Description
spanning-tree enable [vlan <1-
4094>] {forward-time <4-
30>|hello-time <1-10>|max-age
<6-40> |priority <0-65535>}
This command is entered in the
configuration mode to configure a
PVST+ Forward-time/Hello-time/
Maximum-age/Bridge priority.
no spanning-tree enable [vlan
<1-4094>] {forward-time <4-
30>|hello-time <1-10>|max-age
<6-40>|priority <0-65535>}
The “no” command resets the PVST+
Forward-time/Hello-time/Maximum-age/
Bridge priority to its default.
The default for each of the parameter
is given below:
• Forward time: 15 seconds
• Hello-time: 2 seconds
• Max-age: 20 seconds
• Priority: 32768