mpls-exp-outbound

Function

The mpls-exp-outbound command maps PHBs and colors of MPLS packets to EXP priorities in a DiffServ domain on an outbound interface.

The undo mpls-exp-outbound command restores the default mapping.

The following table shows the default mappings from PHBs and colors to EXP priorities of MPLS packets in a DiffServ domain on an outbound interface.

**Table 1** Default mappings from PHBs and colors to EXP priorities of MPLS packets in a DiffServ domain on an outbound interface
PHB	Color	EXP Priority
BE	green	0
BE	yellow	0
BE	red	0
AF1	green	1
AF1	yellow	1
AF1	red	1
AF2	green	2
AF2	yellow	2
AF2	red	2
AF3	green	3
AF3	yellow	3
AF3	red	3
AF4	green	4
AF4	yellow	4
AF4	red	4
EF	green	5
EF	yellow	5
EF	red	5
CS6	green	6
CS6	yellow	6
CS6	red	6
CS7	green	7
CS7	yellow	7
CS7	red	7

Format

mpls-exp-outbound service-class color map exp-value

undo mpls-exp-outbound [ service-class color ]

Parameters

Parameter	Description	Value
service-class	Specifies a PHB.	The value can be BE, AF1 to AF4, EF, CS6, or CS7.
color	Specifies the color of a packet.	The value can be green, yellow, or red.
exp-value	Specifies the EXP priority of an MPLS packet.	The value is an integer ranging from 0 to 7. A larger value indicates a higher EXP priority of the MPLS packet.

Views

DiffServ domain view

Default Level

2: Configuration level

Usage Guidelines

After QoS scheduling is performed on the MPLS packets, run the mpls-exp-outbound command to map the PHB and color of the MPLS packets in a DiffServ domain to the EXP priority. After the DiffServ domain is bound to the outbound interface of MPLS packets, the downstream device implements QoS scheduling according to EXP priority.

The switch can map PHBs and colors in MPLS packets to EXP priorities and 802.1p priorities on an outbound interface.

Example

# In the DiffServ domain ds1, map the PHB AF1 of outgoing MPLS packets marked yellow to EXP priority 2.

<HUAWEI> system-view
[HUAWEI] diffserv domain ds1
[HUAWEI-dsdomain-ds1] mpls-exp-outbound af1 yellow map 2