Cisco router redundancy

Hi,

We have a Cisco 2851 router that is configured as the voice gateway for the Cisco phone system.

a. Can I get another 2851 (another another router with the required hardware) and configure VRRP or HSRP? Will either of these protocols work for a PRI (not internet) router?

Thanks!
netman70Asked:
Who is Participating?
 
Don JohnstonConnect With a Mentor InstructorCommented:
Well, you can. It's just not what I would call an optimal approach.

You could create two different HSRP groups. Each group would have a different active router. Then assign half the hosts to the virtual router for one group and the remaining to the other group. That way, half of your users would take one circuit and the remaining user would take the other.
0
 
Don JohnstonInstructorCommented:
Yes.
0
 
netman70Author Commented:
OK...how do I connect the (one) PRI I have from my phone provider to both routers to allow for failover? Can I even use GLBP or is it between HSRP and VRRP? Some more information would be helpful...
0
Cloud Class® Course: Microsoft Exchange Server

The MCTS: Microsoft Exchange Server 2010 certification validates your skills in supporting the maintenance and administration of the Exchange servers in an enterprise environment. Learn everything you need to know with this course.

 
Don JohnstonInstructorCommented:
Oh...

No, you can't do that. I thought each router had it's own circuit.

You could have have the service provisioned into two separate fractional services with 12 timeslots going to each router.

But you can't terminate a PRI to two routers.

0
 
netman70Author Commented:
But if I have "two separate fractional services with 12 timeslots going to each router" - I cannot use HSRP or VRRP since they are active/passive technologies?
0
 
netman70Author Commented:
Sorry for the delay in getting back to you...Thanks for your input!
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.