On 03/12/2010 07:21 PM, Jay Nakamura wrote:
We have an Extreme Summit switch where I found that if you have two
separate ports on different VLANs, and the same MAC address enters the
switch on those two completely different VLANs, the switch will start
having problems forwarding traffic. (Or only use the first entry in
the FDB, I am not sure what it actually does other than half of the
traffic drops.) Extreme support has confirmed that this is by design.
Which model? We've run several.
The only time I've ever seen this is when netlogin is enabled; you can't
have a mac which is inserted into the FDB via netlogin on two ports.
It certainly doesn't happen with "ordinary" configs.
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