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
Solved

Cisco Switch

Posted on 2013-12-04
10
476 Views
Last Modified: 2013-12-10
I have new Cisco switch I'm adding to switching fabric. I have multiple VLAN configured on my network so VTP is in action and the trunk port is hard coded.
What do I have to do to make sure that switch does not disrupt the network by becoming a root switch or something other that can mess up the switching fabric setup?
0
Comment
Question by:SydNal2009
  • 3
  • 3
  • 2
  • +1
10 Comments
 
LVL 35

Accepted Solution

by:
Ernie Beek earned 163 total points
ID: 39695709
0
 
LVL 35

Assisted Solution

by:Ernie Beek
Ernie Beek earned 163 total points
ID: 39695715
0
 
LVL 12

Assisted Solution

by:Infamus
Infamus earned 225 total points
ID: 39696162
In addition to erniebeek's comment, you should back up vlan.dat file from current switch as well.

Also it is good idea to setup VTP password so that any new switch won't be joining the VTP domain automatically.
0
Easy, flexible multimedia distribution & control

Coming soon!  Ideal for large-scale A/V applications, ATEN's VM3200 Modular Matrix Switch is an all-in-one solution that simplifies video wall integration. Easily customize display layouts to see what you want, how you want it in 4k.

 
LVL 50

Assisted Solution

by:Don Johnston
Don Johnston earned 112 total points
ID: 39698238
What do I have to do to make sure that switch does not disrupt the network by becoming a root switch or something other that can mess up the switching fabric setup?
If you haven't configured root guard on the existing switches, raise the bridge priority of the new switch before connecting it to the existing network.
0
 

Author Comment

by:SydNal2009
ID: 39698265
What are the commands or steps to take to implement root guard?
0
 
LVL 50

Expert Comment

by:Don Johnston
ID: 39698347
The command will depend on the platform. Configure the ports of the existing switches that should NOT  be root ports with the command:

spanning-tree rootguard

or

spanning-tree guard root

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00800ae96b.shtml#ios2
0
 
LVL 12

Assisted Solution

by:Infamus
Infamus earned 225 total points
ID: 39698879
From reading  your question again, you mentioned about VTP and then asking about root switch.  Are you referring "root switch" as in STP or as "server" in VTP domain?
0
 

Author Comment

by:SydNal2009
ID: 39699031
Sorry if I was not clear. I meant to simply ask how do I prevent a new switch from becoming a root switch when you connect it to other switches on the network.
0
 
LVL 50

Expert Comment

by:Don Johnston
ID: 39699104
I thought your question was clear.
0
 
LVL 12

Expert Comment

by:Infamus
ID: 39699161
Thanks for the clarification.

You have your answers then.

Configure root guard as don mentioned and configure new switches as VTP client.
0

Featured Post

Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Cisco RV 130 - No internet on wired connections, wireless clients ok 32 82
Cisco 3560 Switch with Multiple Gateways 10 73
Install additional HP switch 1 45
Patch panel 7 48
The worst thing when starting a new job is when the previous Network Administrator left behind no documentation. How do you get into the devices? If you've been in this situation or just accidently mistyped your password, this article will hopefully…
This article is a step by step guide on how to create a basic PTP link using Ubiquiti airOS devices. This guide can be used on the following Ubiquiti AirMAX devices. Nanostation, Bullets, AirBridge, Nanobeam, NanoBridge to name a few. Please review …
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…
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…

790 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