Lacp timeout – Brocade Communications Systems Brocate Ethernet Access Switch 6910 User Manual
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Brocade 6910 Ethernet Access Switch Configuration Guide
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Link Aggregation Commands
13
Command Mode
Interface Configuration (Port Channel)
Command Usage
•
Ports are only allowed to join the same LAG if (1) the LACP system priority matches, (2) the
LACP port admin key matches, and (3) the LACP port channel key matches (if configured).
•
If the port channel admin key (lacp admin key - Port Channel) is not set when a channel group
is formed (i.e., it has the null value of 0), this key is set to the same value as the port admin key
(
- Ethernet Interface) used by the interfaces that joined the group. Note that
when the LAG is no longer used, the port channel admin key is reset to 0.
Example
Console(config)#interface port-channel 1
Console(config-if)#lacp admin-key 3
Console(config-if)#
lacp timeout
This command configures the timeout to wait for the next LACP data unit (LACPDU). Use the no
form to restore the default setting.
Syntax
lacp timeout {long | short}
no lacp timeout
long - Specifies a slow timeout of 90 seconds.
short - Specifies a fast timeout of 3 seconds.
Default Setting
long
Command Mode
Interface Configuration (Port Channel)
Command Usage
•
The timeout configured by this command is set in the LACP timeout bit of the Actor State field
in transmitted LACPDUs. When the partner switch receives an LACPDU set with a short timeout
from the actor switch, the partner adjusts the transmit LACPDU interval to 1 second. When it
receives an LACPDU set with a long timeout from the actor, it adjusts the transmit LACPDU
interval to 30 seconds.
•
If the actor does not receive an LACPDU from its partner before the configured timeout expires,
the partner port information will be deleted from the LACP group.
•
When a dynamic port-channel member leaves a port-channel, the default timeout value will be
restored on that port.
•
When a dynamic port-channel is torn down, the configured timeout value will be retained.
When the dynamic port-channel is constructed again, that timeout value will be used.