BGP Multihoming | CEF

Unanswered Question
Mar 9th, 2012
User Badges:

Hi Experts


our organization is connected to two different ISPs , the 1st ciruit is 16 MB while the 2nd Circuit is 8 MB  both circuit are terminated in different routers underlying 2900 , the organization own an AS Number along with class C address  have gotten from RIPE since we r working in ME,i m advertising to Both ISPs while i receive a default route from both ISPs the question is can the load sharing occurs on both Link?i read an article mention its okay with CEF


thanks experts for sharing the info and consultancy

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 3 (2 ratings)
Loading.
Marwan ALshawi Fri, 03/09/2012 - 11:45
User Badges:
  • Purple, 4500 points or more
  • Community Spotlight Award,

    Best Publication, December 2015

You mean you have a device in your LAN

Connecting to those two edge routers and load share the outgoing traffic ?

If yes what is the device type/model ?


Sent from Cisco Technical Support iPhone App

Joseph W. Doherty Fri, 03/09/2012 - 13:14
User Badges:
  • Super Bronze, 10000 points or more

Disclaimer


The   Author of this posting offers the information contained within this   posting without consideration and with the reader's understanding that   there's no implied or expressed suitability or fitness for any purpose.   Information provided is for informational purposes only and should not   be construed as rendering professional advice of any kind. Usage of  this  posting's information is solely at reader's own risk.


Liability Disclaimer


In   no event shall Author be liable for any damages whatsoever (including,   without limitation, damages for loss of use, data or profit) arising  out  of the use or inability to use the posting's information even if  Author  has been advised of the possibility of such damage.


Posting


Sorry, it's a bit unclear.  Both ISP links are on the same router or two different routers?  If the latter, how is (outbound) traffic directed to the two routers?


Whether one router or two, it's likely not too difficult to use both outbound links equally, but if you wanted to use them in proportional to their actual bandwidths, that might be possible too, but likely more complex.

Ibrahim Jamil Sat, 03/10/2012 - 00:19
User Badges:

Hi


is the outgoing traffic means traffic towards both ISP,from each router ,using BGP Local_Pref???



two edge router 2900 ,each has circuit towards the ISP


thanks

Vasileios Boulo... Sat, 03/10/2012 - 01:39
User Badges:
  • Silver, 250 points or more

According to your requirments and since you have two different routers connected to two different ISP you can configure GLBP to unequally load balance the outgoing (uplink) traffic.

GLBP (Gateway load balancing Protocol) is configured to the LAN (similar to HSRP or VRRP).

You find furhter details ig you search with GLBP to cisco.com.

I can send you some relevant doc if you need

Joseph W. Doherty Sat, 03/10/2012 - 02:58
User Badges:
  • Super Bronze, 10000 points or more

Disclaimer


The    Author of this posting offers the information contained within this    posting without consideration and with the reader's understanding that    there's no implied or expressed suitability or fitness for any  purpose.   Information provided is for informational purposes only and  should not   be construed as rendering professional advice of any kind.  Usage of  this  posting's information is solely at reader's own risk.


Liability Disclaimer


In    no event shall Author be liable for any damages whatsoever  (including,   without limitation, damages for loss of use, data or  profit) arising  out  of the use or inability to use the posting's  information even if  Author  has been advised of the possibility of such  damage.


Posting


How is the traffic directed to the two 2900 (outbound)?  For example, are the local gateways (where Vasileios' GLBP solution might work for you) or are the connect to another router or routers?  Do they run iBGP and/or an IGP?

Actions

This Discussion