We help IT Professionals succeed at work.

We've partnered with Certified Experts, Carl Webster and Richard Faulkner, to bring you a podcast all about Citrix Workspace, moving to the cloud, and analytics & intelligence. Episode 2 coming soon!Listen Now

x

BDPU guard vs filter

Medium Priority
1,232 Views
Last Modified: 2013-12-24
Hi,

Assuming that a particular distribution switch is supppliying individual access ports to customers, what would be the general opinion regarding the use of BPDU guard vs BPDU filter. Virtually all connections to customer equipment will be single ports only, however, the occasional customer will have two ports (supplied via different distribution switches for resiliance). Ideally, we  do not want any BPDUs from customers equipment reaching the core network which BPDU filter achieves. I'm also aware, however, that the use of BPDU filter when a customer has two seperate ports that are connected to the same switch or similar can cause severe loop problems.
Any suggestions as to the best combination/use of filter or guard would be appreciated.

Thanks...
Comment
Watch Question

Commented:
BPDU filter will not allow BPDUS in but keep the port operational.  BPDU guard will shut down the port if it receives a BPDU.  You more than likely don't want to shut the port down if it is customer facing.  Use BPDU filter.
Hi Klinko2k,

You are correct in your comment regarding not wanting to shutdown a  port if it is customer facing, however, we would rather this happen than a loop occur which could affect a significant amount of customers. A loop would only normally occur if a two or more ports connecting to the same customer infrastructure had BPDU filter enabled and this should not happen assuming that the correct installation/configuration process has been followed (disable BPDU filter for customers with more than one port). What we are loooking for is some mechanism, if one exists, to protect against this sort of issue which would invariably be caused by human error.

Thanks.....

Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.