4000 Router Series ACL and QoS Command Reference

• To delete a criterion that matches MPLS EXP values, the specified MPLS EXP values in the command

must be identical with those defined in the criterion (the sequence may be different).The MPLS EXP

field exists only in MPLS packets, so this match criterion takes effect for only the MPLS packets.

• As for software forwarding QoS, MPLS packets do not support IP-related matching rules.

Defining a criterion to match CVLANs

• You can configure multiple VLAN ID match criteria for a traffic class. The defined VLAN IDs are

automatically arranged in ascending order.

• You can configure multiple VLAN IDs in one command line. If the same VLAN ID is specified

multiple times, the system considers the VLAN IDs as one. If a packet matches one of the defined

VLAN IDs, it matches the if-match clause.

• To delete a criterion that matches VLAN IDs, the specified VLAN IDs in the command must be

identical with those defined in the criterion (the sequence may be different).

Defining a criterion to match the packet length

• You can configure multiple packet length match criteria for a class.

• If you configure only the min min-value option, the match criterion matches packets longer than

min-value. If you configure only the max max-value option, the match criterion matches packets

shorter than max-value. If you configure both the min min-value and max max-value options (where

max-value must be greater than min-value), the match criterion matches packets longer than

min-value and shorter than max-value.

Defining a criterion to match RTP protocol ports

• This command matches RTP packets with an even UDP destination port number in the specified RTP

port number range.

• You can configure multiple RTP protocol port match criteria for a class.

Examples

# Define a match criterion for traffic class class1 to match the packets with their destination MAC

addresses being 0050-ba27-bed3.

<Sysname> system-view

[Sysname] traffic classifier class1

[Sysname-classifier-class1] if-match destination-mac 0050-ba27-bed3

# Define a match criterion for traffic class class2 to match the packets with their source MAC addresses

being 0050-ba27-bed2.

<Sysname> system-view

[Sysname] traffic classifier class2

[Sysname-classifier-class2] if-match source-mac 0050-ba27-bed2

# Define a match criterion for traffic class class1 to match the packets with their customer network 802.1p

priority values being 3.

<Sysname> system-view

[Sysname] traffic classifier class1

[Sysname-classifier-class1] if-match customer-dot1p 3

# Define a match criterion for traffic class class1 to match the advanced ACL 3101.

<Sysname> system-view

[Sysname] traffic classifier class1

[Sysname-classifier-class1] if-match acl 3101