I am searching for the most feasible backup route solution for my network. Here is my scenario:
ISP A --sonet--3550-----layer 3 switch primary-----|
\------layer 3 switch secondary--||
ISP B ---rpr --linux rtr---- 2611 -----------2924 sw
The 2 layer3 switches (4006 12.1.19x) are just using static routes to get to the isp. At 1st, I was just going to use a floating static route to ISP B, but, as I found out the hard way, it will not work just directly connected routes ( no dynamic routed proto). I only care about outbound traffic in a failover situation, hosted web site availability is not important in failover mode. I just want the users to be able to access the internet.
A:) implement a dynamic routing protocol locally; both ISPs will not participate, thus making the floating static routes functional
B:) Implement policy based routing with icmp as the deciding factor?
PS. I plan on implementing a 3rd ISP at some point too.
shows how to make floating statics work with directly connected routes.
In my scenario, the primary route is though a vlan interface and the backup is though the 2611 which is connected via the 2924 to the 4006 switch port which resides in another vlan ( shouldn't matter).
The scenario in the above link uses physical interfaces.
Will it work with a logical interface and a switchport/host?
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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