Has anyone out there had experience

[ChrisAC]

Has anyone out there had experience with implementing HSRP for failover internet connectivity.

We might be doing this at one site. It has a 100MB link to another site about a mile or so up the road and they require failover for internet access as they host business to business web servers. There will be two Nokia firewalls with failover configuration and we need to set up two routers with failover on two 2MB leased lines.

Can anyone recommend what routers would be best to implement this, and are there any issues that we need to be aware of?

Any words of wisdom anyone??

Chris.
********************************
Chris Andrew, CCNA
Technical Support Engineer
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[wybnormal]

I ran it on two 3640s and two Cat6500s. It does work.. it can make sniffing fun due to the "fake" mac being used. It's a better design to use failover HSRP groups.. that way you can load balance between them. Without the groups, you can only have one of the two routers active. So R1 is GroupA and R2 is Groupb.. GroupA and B are HSRP for each other but since it's a group.. they are both active for routing The good news is that you can have more then one router in a group.. serveral can stand by for several others and etc.

http://www.cisco.com/warp/public/619/7.html

MikeS Find me at

http://www.packetattack.com

"Diplomacy; the art of saying 'nice doggie' till you can find a rock" Wynn Catlin

 

[ChrisAC]

Thanks Mike!

We were thinking about load-balancing, but there as some issues with it that we've had some problems with in the past. Each 2MB leased line will terminate on a different router at the local POP. We need to point traffic down either one link or the other one. The core guys have never been able to get it working pointing traffic down two different lines on two different routers. It throws the routing tables into chaos! Luckerly for us we've got a Cisco TAC engineer on loan to us for 12 months to oversee network upgrades, so maybe he'll be able to figure it out!!

I've suggested that we initially install the two routers in a failover configuration, with one 2MB active line and the other in standby mode. Maybe when it's all up and working we can tackle the load balancing thing.

Cheers anyway!

Chris.
********************************
Chris Andrew, CCNA
Technical Support Engineer
********************************

 

[wybnormal]

Load balancing works.. sort of.. you need to turn off fast switch caching.. the router will then do a 1 to 1 packet route.. ie.. if you have 2 routes to the same end point, the router will send 1 packet one way and the next the 2nd way. It is pretty hard on the CPU and overall performance..

I would suggest your router guys figure out routing protocols because OSPF and EIGRP can both load balance and it works pretty well.

You can also do policy routing to throw web traffic over one link and the rest over the other link.. using floating statics to force it back if the link drops off line.

MikeS
Find me at

http://www.packetattack.com

"Diplomacy; the art of saying 'nice doggie' till you can find a rock" Wynn Catlin

 

[zen277]

we have a cisco 2500 series router & we have subscribed our bandwidth to two different ISP's We have tried to implement ploicy routing through which we can bifurcate our traffic to the internet, but something is not right & we have noticed performance degradation. I need some guidance on implementing policy routing.