From: John Matijevic (matijevi@bellsouth.net)
Date: Tue Jul 29 2003 - 11:03:45 GMT-3
Emmet,
I have been successfully able to configure a route reflector withing a peer
group, if that helps. If you have any problems, with your config, please let
us know.
Sincerely,
Matijevic
----- Original Message -----
From: "Emmett Brown" <bremmett@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Monday, July 28, 2003 11:43 PM
Subject: BGP route reflectors and peer groups
> dear all,
>
> i have encountered a BGP scenario which baffles me, and i need some advice
on
> this...
>
> topology is like this:
>
> R1 (dlci=102)-------(dlci=201) R2 (dlci=203)--------(dlci=302) R3
> s0 s0
> s0
>
> configured on R1:
> int s0
> encapsulation frame-relay
> no frame-relay inverse-arp
> frame-relay map ip 100.100.123.1 102
> frame-relay map ip 100.100.123.2 102 broadcast
> frame-relay map ip 100.100.123.3 102 broadcast
> ip address 100.100.123.1 255.255.255.0
> ip ospf priority 0
>
> router ospf 1
> router-id 100.100.1.1
> network 100.100.1.0 0.0.0.255 area 0
> network 100.100.123.0 0.0.0.255 area 0
>
> on R2:
> int s0
> encapsulation frame-relay
> no frame-relay inverse-arp
> frame-relay map ip 100.100.123.1 201 broadcast
> frame-relay map ip 100.100.123.2 201
> frame-relay map ip 100.100.123.3 203 broadcast
> ip address 100.100.123.2 255.255.255.0
> ip ospf priority 100
> router ospf 1
> router-id 100.100.2.2
> network 100.100.2.0 0.0.0.255 area 0
> network 100.100.123.0 0.0.0.255 area 0
> neighbor 100.100.123.1
> neighbor 100.100.123.3
>
> lastly, on R3:
> int s0
> encapsulation frame-relay
> no frame-relay inverse-arp
> frame-relay map ip 100.100.123.1 302 broadcast
> frame-relay map ip 100.100.123.2 302 broadcast
> frame-relay map ip 100.100.123.3 302
> ip address 100.100.123.3 255.255.255.0
> ip ospf priority 0
>
> router ospf 1
> router-id 100.100.3.3
> network 100.100.3.0 0.0.0.255 area 0
> network 100.100.123.0 0.0.0.255 area 0
>
> if i am to configure BGP on R1, R2 and R3 using AS100 and have to use R3
as
> route-reflector, may i use the following configuration on R3?
>
> router bgp 100
> bgp router-id 100.100.3.3
> bgp cluster-id 100
> neighbor clients peer-group
> neighbor clients remote-as 100
> neighbor clients update-source loopback 0
> neighbor clients route-reflector-clients
> neighbor 100.100.1.1 peer-group clients
> neighbor 100.100.2.2 peer-group clients
>
> the reason i am asking this question is, on my Cisco IOS IP Configuration
> Guide 12.2 hardcopy, it has a line which i quote: "NOTE: IF
CLIENT-TO-CLIENT
> REFLECTION IS ENABLED, THE CLIENTS OF A ROUTE REFLECTOR CANNOT BE MEMBERS
OF A
> PEER GROUP." (IPC-304) but this line has been removed on the online
documents
> and therefore, i cannot see this line appearing on either 12.1 nor 12.2 of
the
> online docCD.
>
> so, is it safe to assume that i can use peer-groups with route-reflectors,
as
> in my case?
>
>
> Emmett
>
>
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