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Unknown new s-series feature: V8.62 "control-frame-learning disable" ?

Unknown new s-series feature: V8.62 "control-frame-learning disable" ?

M_Nees
Contributor III
2 weeks ago a new s-series firmware was going public.

Release Notes tell me the following new feature:

bae7b4b646314108b323a045350d98b6_RackMultipart20161024-34924-1co5slb-control-frame-learning_inline.png



which kind of "control-frames" can be disabled from learning? In what szenario will help me that function?

Unfortunately no manual for V8.62 is available! No KB Article, nothing that will explain that feature.

Regards
5 REPLIES 5

Alex24
Extreme Employee
Hello Matthias,

We will be writing up a article to cover this but in summary this feature disables learning of the source MAC address of frames destined to a 01-80-C2-XX-XX-XX destination MAC. This feature is intended to be used in environments where an EOS switch may have multiple links to a switch that doesn't utilize a unique MAC address per port. This can cause the EOS switch to learn the mac address of the switch on multiple ports including ports that are in a blocking state per spanning tree. There is a possibility that traffic destined to the remote switch MAC address may be dropped if the forwarding database has the MAC address for the remote switch learned on a blocked port where traffic cannot be egressed.

-Alex
GTM-P2G8KFN