Configure Msm-Failover Esrp-Failover-Mode - Extreme Networks ExtremeWare Command Reference Manual

ESRP Commands

configure msm-failover esrp-failover-mode

configure msm-failover esrp-failover-mode [none | rapid-reelection |
remain-esrp-master-in-l2-domains {<reelect-timeout>}]
Description
Configures the desired operation of hitless failover when ESRP is in use.
Syntax Description
none
rapid-reelection
remain-esrp-master-in-l2-domains Specifies that an ESRP master notifies the standby nodes of the failover and
reelect-timeout
Default
None.
Usage Guidelines
The
configure msm-failover esrp-failover-mode
individual domains may respond differently to hitless failover depending on circumstances and
configurations.
When using the
remain-esrp-master-in-l2-domains
domain whenever that domain is configured with layer 2 tracking options only. If you have an ESRP
domain with layer 3 tracking options, or you configure an ESRP VLAN to have both layer 2 and layer 3
tracking options, the
remain-esrp-master-in-l2-domains
domain or VLAN assumes the behavior of the
Table 19: Hitless failover support for ESRP tracking options
Tracking Option
Diagnostic
Environment
VLAN
OSPF, BGP, RIP
IP Route
Ping
1064
Specifies that ESRP does not participate in hitless failover. The master switch
blocks its ports during a failover and performs a full initialization of ESRP. This
is the default.
Specifies that ESRP behaves as if none was selected. In addition, if a failover
occurs when the switch is the master in an ESRP domain, the switch sends a
notification that the standby nodes should elect a new master as soon as
possible. This facilitates a faster ESRP master reelection than none.
wishes to remain the master. Along with the notification, it sends the amount
of time in seconds that the standby nodes should wait before beginning
reelection.
Specifies the amount of time the standby nodes should wait before beginning
reelection. The default is 30 seconds, and the range is 15 - 180 seconds.
rapid-reelection
Hitless Support
Yes
Yes
Yes
No
No
No
command affects all ESRP domains. However,
option, the behavior is hitless within an ESRP
option is overridden. Rather, the ESRP
option.
ExtremeWare Software 7.3.0 Command Reference Guide