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Intel
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NetStructure™ 480T Routing Switch User Guide
ESRP Examples
This section provides examples of ESRP configurations.
Single VLAN Using Layer 2 and Layer 3
Redundancy
This example, shown in Figure 11.3, uses a number of switches that
perform Layer 2 switching for VLAN Sales. The switches are multi-
homed to the VLAN Sales switches. The VLAN Sales switches
perform Layer 2 switching between the switches shown near the
bottom of the diagram, and Layer 3 routing to the outside world.
Each switch is multi-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 connects 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).