This command adds to the specified class definition a match condition for the Class of Service value (the only tag in a single tagged packet or the first or outer 802.1Q tag of a double VLAN tagged packet). The value may be from 0 to 7. Use the [not] option to negate the match condition.
| Default | None |
| Format | match [not] cos 0-7 |
| Mode | Class-Map Config |
