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Beginner

How to swing traffic TWO router two wan link failover

Hi,
I have confuse in network design.Please see below diagram and please help me how to fix to get fully redundancy.In diagram,If WAN link of R1 is down,branches can detect WAN link of R1 is down and so they swing their traffic to R2. But our VRRP didn't know R1 WAN is down or not.So R1 is still primary and return traffic is fail,correct ? And our FW cannot detect the WAN and FW still forward the all traffic to R1 and traffic is fail,correct ? how to solve this issue ? What kind of scenario should i use ? do i need to change design or configuration ?

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2 ACCEPTED SOLUTIONS

Accepted Solutions
VIP Advocate

Re: How to swing traffic TWO router two wan link failover

Hi,

You can go with VRRP with SLA configuration. Here I am sharing a link for your easy understanding the behaviour of VRRP and SLA. 

 

https://www.atlassian.com/blog/archives/clustering_cisco_routers_with

 

Regards,

Deepak Kumar

Vote to all helpful Answer.

Regards,
Deepak Kumar,
Don't forget to vote and accept the solution If this comment will make help you!
VIP Advocate

Re: How to swing traffic TWO router two wan link failover

Hi,

This is called Embedded event manager.

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/eem/configuration/12-4t/eem-12-4t-book/eem-policy-cli.html

 

If you asking then the configuration is already mentioned in the shared (by you) link. 

 

Regards,

Deepak Kumar

Regards,
Deepak Kumar,
Don't forget to vote and accept the solution If this comment will make help you!
3 REPLIES 3
VIP Advocate

Re: How to swing traffic TWO router two wan link failover

Hi,

You can go with VRRP with SLA configuration. Here I am sharing a link for your easy understanding the behaviour of VRRP and SLA. 

 

https://www.atlassian.com/blog/archives/clustering_cisco_routers_with

 

Regards,

Deepak Kumar

Vote to all helpful Answer.

Regards,
Deepak Kumar,
Don't forget to vote and accept the solution If this comment will make help you!
Beginner

Re: How to swing traffic TWO router two wan link failover

Hi,
if i want to Shutdown LAN interface if my WAN network is down by using IP SLA ,how can i do ?
The below two are correct ?
https://community.cisco.com/t5/routing/tracking-with-ip-sla-and-shut-an-interface/td-p/1881878
http://shamimjahan.blogspot.com/2015/02/auto-interface-shutdown-and-auto.html
VIP Advocate

Re: How to swing traffic TWO router two wan link failover

Hi,

This is called Embedded event manager.

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/eem/configuration/12-4t/eem-12-4t-book/eem-policy-cli.html

 

If you asking then the configuration is already mentioned in the shared (by you) link. 

 

Regards,

Deepak Kumar

Regards,
Deepak Kumar,
Don't forget to vote and accept the solution If this comment will make help you!
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