Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Etherchanneling Source vs Destination?

When would you use Destination over the default Source Mac address?

  • Other Network Infrastructure Subjects
2 REPLIES
New Member

Re: Etherchanneling Source vs Destination?

Hi,

please allow me to extend your question a bit further to make it even more exciting:

- When would one specify layer 2 (MAC address) parameters to be taken into consideration by the Etherchannel hashing algorithm and when does he go to layer 3 (IP address) and even layer 4 parameters (transport info)?

- How would this affect the resources utilization on the switch (take for example a Catalyst 6509 with SUP2/PFC2/MSFC2)?

- In the case of a Catalyst 3500XL, it only supports the choice between "source" OR "destination" (no way to use both in the algorithm); if it is connected on the other side of the bundle to a Catalyst 6500 using Layer 3/4 information in the hash function, how would this affect the traffic flow on the bundle (personnaly I think one of the links could end up being overutilized with respect to the other links in the bundle)

Hope that someone will be able to help.

Thanx

New Member

Re: Etherchanneling Source vs Destination?

I hope you are asking about FEC, because these are my links to help you on that. Maybe they will help?

http://www.cisco.com/warp/public/473/4.html

and specifically http://www.cisco.com/warp/public/473/4.html#second . and one more:

http://www.cisco.com/warp/public/473/index.shtml#EtherChannel

194
Views
0
Helpful
2
Replies
This widget could not be displayed.