User guide

10-16 E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
E
XTREME
S
TANDBY
R
OUTER
P
ROTOCOL
ESRP E
XAMPLES
This section provides examples of ESRP configurations.
S
INGLE VLAN USING LAYER 2 AND LAYER 3 REDUNDANCY
This example, shown in Figure 10-8, uses a number of Summit switches that perform
layer 2 switching for VLAN Sales. The Summit switches are dual-homed to the
BlackDiamond switches. The BlackDiamond switches perform layer 2 switching
between the Summit switches, and layer 3 routing to the outside world. Each Summit
switch is dual-homed using active ports to two BlackDiamond switches (as many as
four could be used). ESRP is enabled on each BlackDiamond switch only for the VLAN
that interconnects to the Summit switches. Each BlackDiamond switch has the VLAN
Sales configured using the identical IP address. The BlackDiamond switches then
connect to the routed enterprise normally, using the desired routing protocol (for
example RIP or OSPF).
disable esrp vlan <name> Disables ESRP on a VLAN.
enable esrp vlan <name> Enables ESRP on a VLAN.
show esrp {detail} Displays ESRP configuration information.
show esrp vlan <name> Displays ESRP configuration information
for a specific VLAN.
Table 10-1: ESRP Commands (continued)
Command Description