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Chapter 7
Multi-Layer Switching (MLS)
the switch. This is telling the MLS-SE that a layer 3 cache entry has 64 sec-
onds in which 31 packets or more must utilize the entry. If this doesn't hap-
pen, the cache entry is removed.
The actual syntax for the command is set mls agingtime fast
fastagingtime pkt-threshold
. An example configuration follows:
Switch2> (enable) set mls agingtime fast 64 31
Multilayer switching fast aging time set to 64 seconds for
entries with no more than 31 packets switched.
Switch2> (enable)
Verifying the Configuration
MLS-SE configuration settings can be seen by using the show mls ip com-
mand. The command provides information regarding the aging time, fast
aging time, and packet threshold values. In addition, it gives summary sta-
tistics for the type of flow mask and MLS entries. Finally, it provides details
about the MLS-RP, including XTAG, MAC, and VLAN values. Here is an
example:
Switch1> sho mls ip
IP Multilayer switching aging time = 256 seconds
IP Multilayer switching fast aging time = 0 seconds, packet threshold = 0
IP Current flow mask is Destination flow
Active IP MLS entries = 87
Netflow Data Export version: 7
Netflow Data Export disabled
Netflow Data Export port/host is not configured.
Total packets exported = 0
IP MSFC ID Module XTAG MAC Vlans
--------------- ------ ---- ----------------- ----------------
172.16.10.1 15 1 00-d0-bc-f4-81-c0 10,100
Switch1>
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