configure esrp timer hello
ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.
ExtremeWare XOS 11.5 Command Reference Guide
1277
configure esrp timer hello
configure esrp <esrpDomain> timer hello <seconds>
Description
Configures the ESRP hello timer value.
Syntax Description
Default
The default hello timer is 2 seconds.
Usage Guidelines
The timer specifies the interval, in seconds, for exchanging keep-alive packets between the ESRP
switches for this ESRP domain. A lower value specifies a more frequent exchange of keep-alive
messages, resulting in the faster detection of a failover condition. The timer setting must be configured
identically for the ESRP domain across all participating switches. To see the hello settings, use the
show
esrp {<name>}
command.
The
seconds
range is 1 to 255.
If your configuration contains more than 2,000 ESRP VLANs and 256,000 FDB entries, Extreme
Networks recommends a timer setting greater than 3 seconds.
To view the hello timer settings, use the
show esrp {<name>}
command.
In a large ESRP configuration, the slave ESRP domain might inadvertently become the master ESRP
domain. This can occur when FDB entries are flushed during a master-slave transition. To avoid this we
recommend the general neighbor and hello timeout guidelines listed in
Table 25
described in the
configure esrp timer neighbor
command.
Example
The following command configures the ESRP hello timer to 4 seconds for the ESRP domain
esrp1
:
configure esrp esrp1 timer hello 4
History
This command was first available in ExtremeWare XOS 11.0.
esrpDomain
Specifies an ESRP domain name
seconds
Specifies the number of seconds between keep-alive packets. The range is 1 to
255 seconds.
