8021p-outbound
Function
The 8021p-outbound command maps the PHB and color of outgoing VLAN packets in a DiffServ domain to the 802.1p priority.
The undo 8021p-outbound command restores the default mapping.
Table 1 lists the default mappings from the PHBs and colors to 802.1p priorities of outgoing VLAN packets in a DiffServ domain.
PHB |
Color |
802.1p 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 |
Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735-S-I, S5735S-S, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support this command.
Format
S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-S, S5731S-H, S5732-H, S6720-EI, S6720S-EI, S6720-HI, S6730-H, S6730S-H, S6730-S, and S6730S-S:
8021p-outbound service-class { green | yellow | red } map 8021p-value
undo 8021p-outbound [ service-class { green | yellow | red } ]
S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735-S-I, and S5735S-S:
8021p-outbound service-class map 8021p-value
undo 8021p-outbound [ service-class ]
Parameters
Parameter |
Description |
Value |
|---|---|---|
service-class |
Specifies a PHB. |
The value can be BE, AF1 to AF4, EF, CS6, or CS7, each of which corresponds to queues 0 to 7 respectively. |
green |
Indicates green packets. |
- |
yellow |
Indicates yellow packets. |
- |
red |
Indicates red packets. |
- |
map 8021p-value |
Specifies the 802.1p priority of VLAN packets. |
The value is an integer that ranges from 0 to 7. A larger value indicates a higher priority. |
Usage Guidelines
Scenario
After QoS scheduling is performed on VLAN packets, you can use the 8021p-outbound command to map the PHB and color of the packets in a DiffServ domain to the 802.1p priority. After the DiffServ domain is bound to the outbound interface of the VLAN packets, the downstream device implements QoS scheduling according to the 802.1p priority.
Precautions
If you do not specify the parameters service-class and color when running the undo 8021p-outbound command, the default mappings from CoS values and colors to 802.1p priorities are restored.
The DiffServ domain default exists by default. On the S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735-S-I, and S5735S-S, only the DiffServ domain default is supported.
Example
# For devices excluding the S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735-S-I, and S5735S-S: In DiffServ domain ds1, map PHB AF1 of the outgoing yellow VLAN packets to 802.1p priority 2.
<HUAWEI> system-view [HUAWEI] diffserv domain ds1 [HUAWEI-dsdomain-ds1] 8021p-outbound af1 yellow map 2
# For devices excluding the S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735-S-I, and S5735S-S: In the default DiffServ domain, map PHB AF1 of the outgoing VLAN packets to 802.1p priority 2.
<HUAWEI> system-view [HUAWEI] diffserv domain default [HUAWEI-dsdomain-default] 8021p-outbound af1 map 2