User guide

10-4 E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
E
XTREME
S
TANDBY
R
OUTER
P
ROTOCOL
If any of the configured tracking mechanisms fail, the master ESRP switch
relinquishes status as master, and remains in standby mode for as long as the
tracking mechanism continues to fail.
• ESRP priority—This is a user-defined field. The range of the priority value is 0 to
254; a higher number has higher priority. The default priority setting is 0. A priority
setting of 255 loses the election and remains in standby mode.
• System MAC address —The switch with the higher MAC address has priority.
ESRP T
RACKING
Tracking information is used to track various forms of connectivity from the ESRP
switch to the outside world. This section describes ESRP tracking options.
ESRP VLAN T
RACKING
You can configure ESRP to track connectivity to one or more specified VLANs as
criteria for failover. If no active ports remain on the specified VLANs, the switch
automatically relinquishes master status and remains in standby mode.
To add or delete a tracked VLAN, use the following command:
config vlan <name> [add | delete] track-vlan <vlan_tracked>
ESRP R
OUTE
T
ABLE
T
RACKING
You can configure ESRP to track specified routes in the route table as criteria for
failover. If any of the configured routes are not available within the route table, the
switch automatically relinquishes master status and remains in standby mode.
To participate in ESRP route table tracking, all ESRP switches must run ExtremeWare
version 6.0 or above.
To add or delete a tracked route, use the following command:
config vlan <name> [add | delete] track-route <ipaddress/mask_length>
ESRP P
ING
T
RACKING
You can configure ESRP to track connectivity using a simple ping to any outside
responder. The responder may represent the default route of the switch, or any device
meaningful to network connectivity of the master ESRP switch. The switch