I've run across a frame that I can't get some information on.
It's a SNAP frame coming from a Catalyst 5505 on 120 second intervals.
Destination MAC is 01-00-0c-ee-ee-ee with a type code of 2006. The
only thing I've been able to find so far is this:
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01-00-0c-ee-ee-ee is a Cisco proprietary protocol called SYNC. It's
sent by the root bridge on VLAN1 every two minutes and helps maintain
an accurate SPT topology. In use since 2.1(6). SNAP fromat with hex
value 2006 as the SNAP type. Contains four bytes of data (00 01 D4 C0)
with 34 bytes of padding.
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Does anyone have any additional information on this?
-Don
