Intel 480T, User Manual

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C H A P T E R 9 Enterprise Standby Router Protocol
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ESRP Examples
This section provides examples of ESRP configurations.
Single VLAN Using Layer 2 and Layer 3
Redundancy
This example, shown in Figure 16, uses a number of switches that
perform layer 2 switching for VLAN
Sales . The switches are dual-
homed to the VLAN Sales switches. The VLAN Sales switches
perform layer 2 switching between the bottom switches, and layer 3
routing to the outside world. Each switch is dual-homed using
active ports to two VLAN
Sales switches (as many as four could be
used). ESRP is enabled on each VLAN Sales switch only for the
VLAN that interconnects to the bottom switches. Each VLAN Sales
switch has the VLAN Sales configured using the identical IP
address. These switches then connect to the routed enterprise
normally, using the desired routing protocol (for example RIP or
OSPF).
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 41: ESRP Commands (continued)
Command Description