Ge 5-122 – HP 3500YL User Manual

Page 296

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IP Routing Features
Configuring OSPF

Router “A”

Router “B”

Router “C”

10.1.0.0/16

Router “4”

Router “D”

Router “3”

10.2.0.0/16

10.3.0.0/16

10.32.0.0/16

10.42.0.0/16

Router “2”

Router “1”

Equal-Cost Next-Hop Routes

Workstation

Figure 5-55. Example of Load-Sharing Traffic to Different Subnets Through Equal-Cost Next-Hop Routers

Example of a Routing Table for the Network in Figure 5-55

Destination Subnet

Router “A” Next Hop

10.1.0.0/16

Router “C”

10.2.0.0/16

Router “D”

10.3.0.0/16

Router “B”

10.32.0.0/16

Router “B”

10.42.0.0/16

Router “D”

Note that IP load-sharing does not affect routed traffic to different hosts on
the same subnet. That is, all traffic for different hosts on the same subnet will
go through the same next-hop router. For example, if subnet 10.32.0.0 includes
two servers at 10.32.0.11 and 10.32.0.22, then all traffic from router “A” to these
servers will go through router “B”.

Syntax: [no] ip load-sharing < 2 - 4 >

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