if-match dscp

Function

The if-match dscp command configures a filtering rule based on the DSCP value.

The undo if-match dscp command deletes the filtering rule based on the DSCP value.

By default, no filtering rule based on the DSCP value is configured.

Format

if-match dscp { greater-than | less-than | equal } { be | cs1 | af11 | af12 | af13 | cs2 | af21 | af22 | af23 | cs3 | af31 | af32 | af33 | cs4 | af41 | af42 | af43 | cs5 | ef | cs6 | cs7 | dscp-value }

if-match dscp greater-than { be | cs1 | af11 | af12 | af13 | cs2 | af21 | af22 | af23 | cs3 | af31 | af32 | af33 | cs4 | af41 | af42 | af43 | cs5 | ef | cs6 | cs7 | dscp-value } less-than { cs1 | af11 | af12 | af13 | cs2 | af21 | af22 | af23 | cs3 | af31 | af32 | af33 | cs4 | af41 | af42 | af43 | cs5 | ef | cs6 | cs7 | upper-dscp-value }

undo if-match dscp

undo if-match dscp { greater-than | less-than | equal } { be | cs1 | af11 | af12 | af13 | cs2 | af21 | af22 | af23 | cs3 | af31 | af32 | af33 | cs4 | af41 | af42 | af43 | cs5 | ef | cs6 | cs7 | dscp-value }

undo if-match dscp greater-than { be | cs1 | af11 | af12 | af13 | cs2 | af21 | af22 | af23 | cs3 | af31 | af32 | af33 | cs4 | af41 | af42 | af43 | cs5 | ef | cs6 | cs7 | dscp-value } less-than { cs1 | af11 | af12 | af13 | cs2 | af21 | af22 | af23 | cs3 | af31 | af32 | af33 | cs4 | af41 | af42 | af43 | cs5 | ef | cs6 | cs7 | upper-dscp-value }

Parameters

Parameter	Description	Value
greater-than	Matches traffic with the DSCP value being greater than the specified one.	-
less-than	Matches traffic with the DSCP value being smaller than the specified one.	-
equal	Matches traffic with the DSCP value being equal to the specified one.	-
be	BE(0). Specifies a re-marked DSCP type. The DSCP value is 0.	-
cs1	CS1(8). Specifies a re-marked DSCP type. The DSCP value is 8.	-
af11	AF11(10). Specifies a re-marked DSCP type. The DSCP value is 10.	-
af12	AF12(12). Specifies a re-marked DSCP type. The DSCP value is 12.	-
af13	AF13(14). Specifies a re-marked DSCP type. The DSCP value is 14.	-
cs2	CS2(16). Specifies a re-marked DSCP type. The DSCP value is 16.	-
af21	AF21(18). Specifies a re-marked DSCP type. The DSCP value is 18.	-
af22	AF22(20). Specifies a re-marked DSCP type. The DSCP value is 20.	-
af23	AF23(22). Specifies a re-marked DSCP type. The DSCP value is 22.	-
cs3	CS3(24). Specifies a re-marked DSCP type. The DSCP value is 24.	-
af31	AF31(26). Specifies a re-marked DSCP type. The DSCP value is 26.	-
af32	AF32(28). Specifies a re-marked DSCP type. The DSCP value is 28.	-
af33	AF33(30). Specifies a re-marked DSCP type. The DSCP value is 30.	-
cs4	CS4(32). Specifies a re-marked DSCP type. The DSCP value is 32.	-
af41	AF41(34). Specifies a re-marked DSCP type. The DSCP value is 34.	-
af42	AF42(36). Specifies a re-marked DSCP type. The DSCP value is 36.	-
af43	AF43(38). Specifies a re-marked DSCP type. The DSCP value is 38.	-
cs5	CS5(40). Specifies a re-marked DSCP type. The DSCP value is 40.	-
ef	EF(46). Specifies a re-marked DSCP type. The DSCP value is 46.	-
cs6	CS6(48). Specifies a re-marked DSCP type. The DSCP value is 48.	-
cs7	CS7(56). Specifies a re-marked DSCP type. The DSCP value is 56.	-
dscp-value	Specifies the DSCP value.	The value is an integer ranging from 0 to 63.
upper-dscp-value	Specifies the upper limit of a DSCP value.	The value is an integer ranging from 1 to 63.

Views

Flow-Route IPv6 VPN instance view, Flow-Route VPN instance view, Flow-Route-IPv6 view, Flow-Route view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
flow-route	write

Usage Guidelines

Usage Scenario

The if-match dscp command is used to configure a filtering rule based on the DSCP value for a BGP (IPv6) Flow Specification route or BGP (IPv6) VPN Flow Specification route. Traffic matching the filtering rule will be controlled with the action specified by the apply clause.

Prerequisites

A static BGP (IPv6) Flow Specification route or BGP (IPv6) VPN Flow Specification route has been created using the flow-route command in the system view.

Precautions

A maximum of five filtering rules based on the DSCP value can be configured for a BGP Flow Specification route.

After you configure the flow-route ipv6 command, this command cannot be executed and a prompt message is displayed if being manually configured, and this command can be successfully executed if being dynamically delivered. However, this command does not take effect.

Example

# Configure a filtering rule that is based on a DSCP value range for the BGP VPN Flow Specification route Rule1.

<HUAWEI> system-view
[~HUAWEI] flow-route Rule1 vpn-instance va
[*HUAWEI-flow-route-va] if-match dscp greater-than 25 less-than 30

# Configure a filtering rule that is based on the DSCP value for the static BGP Flow Specification route Rule 1.

<HUAWEI> system-view
[~HUAWEI] flow-route Rule1
[*HUAWEI-flow-route] if-match dscp equal 25