?
Solved

Cisco router redundancy

Posted on 2009-05-18
6
Medium Priority
?
948 Views
Last Modified: 2012-06-27
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!
0
Comment
Question by:netman70
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
6 Comments
 
LVL 50

Expert Comment

by:Don Johnston
ID: 24416533
Yes.
0
 

Author Comment

by:netman70
ID: 24417337
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
 
LVL 50

Expert Comment

by:Don Johnston
ID: 24417668
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
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 

Author Comment

by:netman70
ID: 24420201
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
 
LVL 50

Accepted Solution

by:
Don Johnston earned 2000 total points
ID: 24420537
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
 

Author Comment

by:netman70
ID: 24478654
Sorry for the delay in getting back to you...Thanks for your input!
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Tired of waiting for your show or movie to load?  Are buffering issues a constant problem with your internet connection?  Check this article out to see if these simple adjustments are the solution for you.
In the world of WAN, QoS is a pretty important topic for most, if not all, networks. Some WAN technologies have QoS mechanisms built in, but others, such as some L2 WAN's, don't have QoS control in the provider cloud.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Suggested Courses

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question