The Wrong Way to Disable MLS

The Wrong Way to Disable MLS
There are several ways to inadvertently disable MLS on switches. Some are temporary, and
others are permanent. Here is a list of MSFC/router commands that can disable MLS:
 no ip routing
 ip security
 ip tcp compression-connections
 ip tcp header-compression
 clear ip route
By disabling IP routing on the MSFC or router, you automatically disable MLS. The ip
security command disables MLS on the interface to which the command is applied. The same
results occur with the ip tcp compression commands. The clear ip route command simply
clears the MLS cache entries, and the flow caches must be reestablished.