?
Solved

BGP cluster ID

Posted on 2016-08-10
1
Medium Priority
?
102 Views
Last Modified: 2016-08-12
Router
router bgp 64615
 no synchronization
 bgp router-id 10.74.50.244
bgp cluster-id 2887698805
 bgp log-neighbor-changes
 network 10.74.50.240 mask 255.255.255.252
 network 10.74.50.244 mask 255.255.255.255
 network 10.74.50.0 mask 255.255.255.0
 network 172.30.201.117 mask 255.255.255.255
 network 172.30.205.212 mask 255.255.255.252
 neighbor 172.30.205.214 remote-as 13321
 neighbor 172.30.205.214 description AT&T
 neighbor 172.30.205.214 route-map ADVERTISE_LOCAL_ONLY out


Router#show ip bgp ?
  A.B.C.D          IP prefix <network>/<length>, e.g., 35.0.0.0/8
  A.B.C.D          Network in the BGP routing table to display
  cidr-only        Display only routes with non-natural netmasks
  community        Display routes matching the communities
  community-list   Display routes matching the community-list
  dampened-paths   Display paths suppressed due to dampening
  filter-list      Display routes conforming to the filter-list
  flap-statistics  Display flap statistics of routes
  inconsistent-as  Display only routes with inconsistent origin ASs
  ipv4             Address family


I have a cluster-id configured.  I think it may be legacy.  When I do a show ip bgp ? - cluster-id is not present.  

How can I verify if the cluster-id is still being used or not being used, and why is this still here?  Isn't the command "neighbor 10.x.x.x cluster-id x.x.x.x" needed?  There is no "neighbor 10.x.x.x cluster-id x.x.x.x" under the show run.  
0
Comment
Question by:PeraHoman
[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
1 Comment
 
LVL 14

Accepted Solution

by:
SIM50 earned 2000 total points
ID: 41750892
Cluster ID is used to prevent loops with route reflectors if you have more than one route reflector in the group. RR will not accept routing updates from another RR with the same cluster ID.  If you don't user RR's, I believe it should be safe to remove that command.
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

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

Use of TCL script on Cisco devices:  - create file and merge it with running configuration to apply configuration changes
On Feb. 28, Amazon’s Simple Storage Service (S3) went down after an employee issued the wrong command during a debugging exercise. Among those affected were big names like Netflix, Spotify and Expedia.
Viewers will learn how to properly install and use Secure Shell (SSH) to work on projects or homework remotely. Download Secure Shell: Follow basic installation instructions: Open Secure Shell and use "Quick Connect" to enter credentials includi…
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…

719 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