MLS Cache

MLS Cache
After MLS-SEs have established CAM entries for MLS-RPs, the switch is ready to start scanning
packets and creating cache entries. This was described previously as the identification of candidate
and enable packets.
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Chapter 18 
Multilayer Switching (MLS)
The cache entries are made in order to maintain flow data. Flow data enables the MLS-SE to
rewrite the packets with the new source and destination MAC address and then forward the packets.
All of this is done without sending the packets to the router for a route lookup and to be rewritten.
Cache entries happen in two steps:

Candidate packet entries

Enable packet entries
After these entries have been made in the MLS-SE, subsequent packets are matched against
existing flow entries and dealt with accordingly.