07-24-2005 03:09 PM - edited 03-03-2019 10:07 AM
Dear all
I have two router and 3 (2 x 512 and 1 x 128) Kbps. Serial links and one BRI
I planned to connect 2 x 512 Links in one router and BRI and 128 K serial in other router.
Whenever any one of 512 goes down then traffic should shared between one no. 512 in First router, and 128 k Serial and BRI
Already EIGRP is running in this network. and i would like continue with that
On the other end also we have same setup at B end also.
Please Suggest how can i do that
07-29-2005 07:28 AM
This case study examines Cisco's Hot Standby Routing Protocol (HSRP), which provides automatic router backup when you configure it on Cisco routers that run the Internet Protocol (IP) over Ethernet, Fiber Distributed Data Interface (FDDI), and Token Ring local-area networks (LANs).
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ics/cs009.htm
07-29-2005 10:00 AM
Multilink ppp to bind the circuits together but I am not sure if you can span it across two routers. Also, this would bring the BRI up all the time.
EIGRP variance comes to mind but again I am not sure how to span it across two routers and ISDN line would stay up.
With HSRP, you can track the serial links but once you lost that T1, all traffic would switch to the BRI and 128k serial router and you wouldn't want to do that since you have a good 512kb circuit on the first router. NO load balancing, just failover.
GLBP? Not familiar enough to talk about it.
You could do it if all links were on one router and Have the other router as a manual standby router or go with one router with two power supplies or an RPS.
Hope this helps
07-29-2005 10:23 AM
Is this a That much difficult i thinks genius peoples have not seen this..
08-01-2005 01:32 AM
Hi
Maybe with GLBP, i'm not familiar with it. But if you want to stay with HSRP you can do it this way ( not optimal).
Run two different hsrp processes and let half of the pc:s to each.
router with 2x512
stand 1 prio 105
stand 1 track int 8
stand 1 track int 8
stand 1 preempt
stand 2 prio 105
stand 2 track int 3
stand 2 track int 3
stand 2 preempt
router with bri
stand 1 prio 100 (default-value)
stand 1 track int (128k> 5
stand 1 preempt
stand 2 prio 100 (default-value)
stand 2 preempt
this gives you for group 1
if one interface goes down the other router get active
if at the same time the 128k is down it does not take over
if both 512 is down the other takes over regardles of the 128k status
for group 2
if both 512 goes down the other takes over.
Hope you got something out of this
/Mike
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