Specifications

Advanced ESRP Features
ExtremeWare XOS 11.0 Concepts Guide 241
ESRP Tracking Example
Figure 35 is an example of ESRP tracking.
Figure 35: ESRP tracking
To configure VLAN tracking, use the following command:
configure esrp esrp1 add track-vlan vlan1
Using the tracking mechanism, if VLAN1 fails, the ESRP master realizes that there is no path to the
upstream router via the master switch and implements an ESRP failover to the slave switch.
To configure route table tracking, use the following command:
configure esrp esrp1 add track-iproute 10.10.10.0/24
The route specified in this command must exist in the IP routing table. When the route is no longer
available, the switch implements an ESRP failover to the slave switch.
To configure ping tracking, use the following command:
configure esrp esrp1 add track-ping 10.10.10.121 frequency 2 miss 2
The specified IP address is tracked. If the fail rate is exceeded, the switch implements an ESRP failover
to the slave switch.
ESRP Port Restart
You can configure ESRP to restart ports in the ESRP master domain when the downstream switch is
from a third-party vendor. This action takes down and restarts the port link to clear and refresh the
downstream ARP table.
EX_094
ESRP master
200.1.1.1/24
vlan esrp1
(track-vlan)
vlan vlan1
Host 2:
200.1.1.14/24
Gateway:
200.1.1.1
Host 1:
200.1.1.13/24
Gateway:
200.1.1.1
L2 switch
ESRP slave
200.1.1.2/24
Router
10.10.10.121