Spantree Max-Age - Alcatel-Lucent 060321-10, Rev. B Cli Reference Manual

spantree max-age

spantree max-age
Configures the bridge maximum age time value for the flat mode Common and Internal Spanning Tree
(CIST) instance or for a per-VLAN mode VLAN instance. This value is the amount of time, in seconds,
that the Spanning Tree Protocol information learned from the network on any port is retained. This infor-
mation is discarded when it ages beyond the maximum age value.
spantree [cist | vlan vlan_id] max-age seconds
Syntax Definitions
cist
vlan_id
seconds
Defaults
By default, the bridge maximum age time value is set to 20 seconds.
parameter
cist | vlan vlan_id
Platforms Supported
OmniSwitch 10K
Usage Guidelines
•
A low maximum age time causes the Spanning Tree Algorithm to reconfigure more often.
•
If the optional cist or vlan parameter is not specified with this command, the maximum age time is
configured for the CIST instance by default. This is true regardless of which mode (flat or per-VLAN)
is active for the switch.
•
Although the cist and vlan parameters are configurable in both the flat and per-VLAN mode, the speci-
fied maximum age time value is not applied unless the supporting mode (flat for CIST or per-VLAN
for a VLAN instance) is active.
•
Note that for Multiple Spanning Tree Instances (MSTI), the maximum age time value is inherited from
the CIST instance and is not a configurable parameter.
Examples
-> spantree max-age 10
-> spantree cist max-age 10
-> spantree vlan 10 max-age 30
page 5-22
The CIST instance (also known as MSTI 0). This parameter is config-
urable in both modes (flat or per-VLAN).
An existing VLAN ID number. This parameter is configurable in both
modes (flat or per-VLAN).
Max-age time in seconds. The valid range is 6–40.
default
cist
Distributed Spanning Tree Commands
OmniSwitch CLI Reference Guide March 2011