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New Member

HSRP and Path Selction based on Link Quality

Hello,

 

 

I know that HSRP will automatically failover if a circuit is detected as down.  Is there a way to force packets out of Router B even thorugh Router A is up but the ciscuit is taking errors, bad quality etc.?  Running Voice over the WAN but I want to have voice always use the better connection even if they are both up.

 

 

Thanks in advance!  All replies rated.

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Super Bronze

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Posting

I'm unsure about HSRP, it might be possible with SLA tracking.

Otherwise, I believe PfR can move traffic between egress paths based on quality issues.

New Member

 Well this can be achived

 

Well this can be achived using multiple techniques together although is not easy. 

With HSRP you cannot really force traffic over the standby, because the IP is not active. So you would have to force the failover changing the priority. You could achieve this having an IP SLA with UDP jitter, or MOS simulation and when the value drops, you can trigger an object tracking and an EMM script to change the running config and force the HSRP to move to the other Router. 

Usually you wouldn't have to do this at your 'Default gateway' level but further up at your routing egress. Meaning HSRP could stay the same, but just change your routing with object tracking, IP SLAs and EMM. 

Also PfR is an option, but a slightly more complicated one. I don't know about much people with successful implementations on this. 

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