Lab Objective:
The focus of this lab is to understand Gateway Load Balancing Protocol (GLBP) implementation and configuration in Cisco IOS routers. Additional technologies include GLBP load balancing.
Lab Topology:
The lab network topology is illustrated below:
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IMPORTANT NOTE If you are using the www.howtonetwork.net racks, please bring up the LAN interfaces connected to the routers by issuing the no shutdown command on the connected switches. If you are using a home lab with no interface fastethernet 0/0 Alternately, you can simply connect the interfaces to a hub or switch if you have one available in your own lab. |
Task 1
Configure hostnames, IP addressing on all routers as illustrated in the network topology.
Task 2
Configure EIGRP as illustrated in the topology. Redistribute the LAN subnets into EIGRP.
Verify your configuration using the appropriate commands on all routers in the network.
Task 3
Configure GLBP on R1, R2, and R4. Ensure that R1 is elected AVG. R2 should be standby. The gateway IP should be 150.1.1.254. Verify your configuration using the appropriate commands.
Task 4
Configure load balancing for GLBP so that traffic is distributed between R1, R2 and R4 using a ratio of 50:30:20. In the event that R1 fails, R2 should use the default load balancing method. Verify your configuration using the appropriate commands.
Task 5
Management has requested that when R2 becomes AVG, old forwarder MAC address that was assigned to R1 ceases being used and hosts are migrated away from this address as soon as possible. Configure GLBP so that when R2 becomes AVG, it stops using the old virtual forwarder MAC address in ARP replies within one minute.
To allow for dynamic host ARP cache timeout, ensure that R2 continues to forward packets that were sent to the old virtual forwarder MAC address for no more than five hours. Verify your configuration using the appropriate commands.
Task 6
In the future, multiple GLBP groups will be configured on the LAN segment connecting routers R1, R2, and R5. To allow for easier identification as to what these groups are for, configure the current GLBP group with a group name of ‘SERVER-GLBP-GROUP’. Verify your configuration using the appropriate commands.