HSRP load balancing

Need some help with HSRP load balancing. on Wendell Odom book page 553, is talking about HSRP does support load balancing by preferring different routers to be the active router in different sudnets. so each Valn have router as active and configure like "ROAS" router on a stick. the next step is layer 3 switch . this is were I'm lost. need some help at point .

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clarson

which wendell odom book? he has written a few

yrwins

CCNA ICMD3 v3 200-105

clarson

there is no, next step layer 3 switch.

he is using 2 routers to show the hsrp features. no layer 3 switches involved.

But, hsrp runs on layer 3 switches also. The same thing can be done using 2 layer 3 switches.
To avoid any confusion, his examples only use routers. And, then mentions that layer 3 switches do hsrp also.

yrwins

wow... thanks...

so it's like "Load Sharing"

Load Sharing with HSRP - Cisco

clarson

Yes. the traffic isn't equally balanced between the routers.

Set up two instances of hsrp. one is active for one set of parameters. the other is active for another set. Then, the balancing is only as good as you can direct the traffic based on those parameters.

such as you could set up hsrp 1 to be active for x.x.x.1 and have hsrp 2 be active for x.x.x.3
you could then divide your hosts to use one or the other for a default gateway address. So, half the hosts go to x.x.x.1 and half go to x.x.x.3
how well the traffic is balanced depends how much traffic the various hosts are sending off their local subnet.

while not perfect is still better than having a network segment in standby and carrying zero traffic.