Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Expected network bridge/switch behavior

Posted on 2012-03-13
3
Medium Priority
?
366 Views
Last Modified: 2012-03-19
Hello,

Suppose a bridge/switch has learned a MAC address on certain port, meaning it has seen frames with source address equal to that MAC address coming from that port. Now it receives a frame with _destination_  address set to that MAC address from that port. What a bridge/switch it supposed to do? What standard/RFCs define the behavior of Ethernet switches and bridges in this situation?

Best regards,
Alex
0
Comment
Question by:gremwell
[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
  • 2
3 Comments
 
LVL 3

Accepted Solution

by:
gremwell earned 0 total points
ID: 37716839
Ok, I think I've found the answer myself. According to 802.1d standard, it looks like the bridge is supposed to simply avoid sending the frame back to the port it has received it from. I was asking that question because software switch implementation in POX (l2_learning) drops all packets from the "offending" port in this situation, which creates problems in my setup.
0
 

Expert Comment

by:abhinavgupta72
ID: 37722487
can you please ask the same ques using some example??
not getting it.
0
 
LVL 3

Author Closing Comment

by:gremwell
ID: 37736836
Found the answer myself.
0

Featured Post

Nothing ever in the clear!

This technical paper will help you implement VMware’s VM encryption as well as implement Veeam encryption which together will achieve the nothing ever in the clear goal. If a bad guy steals VMs, backups or traffic they get nothing.

Question has a verified solution.

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

For many of us, the  holiday season kindles the natural urge to give back to our friends, family members and communities. While it's easy for friends to notice the impact of such deeds, understanding the contributions of businesses and enterprises i…
Originally, this post was published on Monitis Blog, you can check it here . It goes without saying that technology has transformed society and the very nature of how we live, work, and communicate in ways that would’ve been incomprehensible 5 ye…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

604 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