Velocity Reviews - Computer Hardware Reviews

Velocity Reviews > Newsgroups > Computing > Cisco > Re: iBGP question.

Thread Tools

Re: iBGP question.

John Agosta
Posts: n/a
As long as you have a route at the existing routers which enables you to
reach the third iBGP neighbor, and that new iBGP neighbor has a route back
to your 2 existing routers,
you can peer up with that new (third) router.

No direct connection, or dedicated facility is needed to do this.
All three routers need to have routes / reachability with each other, that's
And yes, full mesh should be used - or - route reflection.

"Jarek Jarzebowski" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On 7 Lip, 07:40, "Bartosz Gagat" <(E-Mail Removed)> wrote:
>> If possible- use full mesh. If not -use other techiques- like route
>> reflector or confederation.
>> Bartosz Gagat"Jarek Jarzebowski" <(E-Mail Removed)> wrote in
>> message
>> news:(E-Mail Removed)...
>> > Hi all,

>> > I have AS and own PI prefixes. I have 2 BGP routers in different
>> > locations (A and B). Router A announces some prefixes and B announces
>> > another prefixes. Between routers A and B is iBGP session (direct
>> > leased link connecting those two routers).

>> > Now I have to launch third location C with another BGP router within
>> > same AS.

>> > Do I have to make full mesh iBGP connections between routers A,B and C
>> > (I mean dedicated direct links) or may I use some other techniques
>> > like tunnels, or whatever, to establish iBGP connections?

>> > Regards,
>> > Jarek

> OK, but is it possible to implement full mesh using tunnels over
> Internet (or iBGB multihop?) or this must be direct link between
> routers?
> Jarekj

Reply With Quote
Posts: n/a

It is not clear why one would want to use iBGP to other sites in this

Can understand an IGP via GRE tunnels to reach internal resouces
Reply With Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
can EIGRP replaced with IBGP Pravin Pednekar Cisco 3 11-16-2004 03:16 AM
ibgp routing tables not filling up Todd Adamson Cisco 2 10-13-2004 11:07 PM
Redundancy concept help with BGP/IBGP and HSRP Blackjack Cisco 2 09-28-2004 04:24 PM
Redundant VPN with IBGP - Newbie Question Charles Jennings Cisco 1 06-04-2004 03:23 AM
iBGP and Loopback Gary Cisco 1 03-05-2004 10:32 PM