User guide

ExtremeWare EPICenter Software Installation and User Guide 14-3
Viewing ESRP Detail Information
•Group: The ESRP group to which this ESRP-enabled VLAN belongs, in a broadcast
domainthat containsmultipleinstancesof ESRP (multiple ESRP groups).The names of
the ESRP-enabled VLANs participating in the same group must be identical.
• Election Algorithm: The ESRP election algorithm in use for this VLAN. The election
algorithmdetermines the order of precedence ofthe election factors used to determine
the ESRP Master. The election factors are:
— Ports: the number ofactive ports(the switch with thehighestnumber takes priority)
— Track: whether the switch is using ESRP tracking (a switch using tracking has
priority)
— Priority: a user-defined priority number between 0 and 254 (a higher number has
higher priority)
— MAC: the switch MAC address (a higher-number address has priority)
The election algorithm can be one of the following:
—
ports_track_priority_mac (the default): This algorithm considers active ports
first, then tracking, then priority, then the MAC address to determine the ESRP
Master. This is the only algorithm supported for ExtremeWare releases prior to
version 6.0
—
track_ports_priority_mac
— priority_ports_track_mac
— priority_track_ports_mac
— priority_mac_only: only considers priority and the MAC address
See the ExtremeWare Software User Guide, version 6.1, for details.
The ESRP election algorithm must be identical on all switches in an ESRP
group. If it is not, serious problems may arise.
• Hello Timer: This is the interval, in seconds, for exchanging keep-alive packets
between the ESRP switches for this ESRP-enabled VLAN. Also known as the ESRP
timer. The default is 2 seconds.
Viewing ESRP Detail Information
You candisplaydetailed ESRP informationforthe switchesin an individualESRP-enabled
VLAN byclickingon the VLAN name in the ComponentTree in the left-hand panel of the
window. This displays a status window similar to the one shown in Figure 14-2.