3Com 5500-EI PWR Reference Manual page 1150

outer-priority: Priority for the outer VLAN tag in a packet. This argument can be in the range 0 to 7 or a
keyword listed Table
Table 1-2 Description on 802.1p priority
IP Precedence (decimal)
0
1
2
3
4
5
6
7
For descriptions on the 802.1p priority values and the keywords listed in
Profile Operation.
Description
Use the vlan-vpn priority command to configure the mapping between the inner VLAN priority and the
outer VLAN priority. With the mapping configured, a port will encapsulate a packet with the specified
inner tag priority with an outer tag that has the corresponding priority.
Use the undo vlan-vpn priority command to remove the configuration.
By default, no mapping between the inner tag priority and the outer tag priority is configured, and the
switch uses the priority of the receiving port as the outer tag priority of packets. For descriptions on
receiving port priority, refer to QoS-QoS Profile Operation.
Note that:
This command is applicable to only the VLAN-VPN enabled ports.
This command is mutually exclusive with the vlan-vpn inner-cos-trust command.
Examples
# Enable the inner-to-outer tag priority mapping feature for Ethernet 1/0/1. Insert outer tags with the
priorities being 5 to packets with the priorities of their inner tags being 3.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] vlan-vpn priority 3 remark 5
1-2.
Best-effort
Background
Spare
Excellent-effort
Controlled-load
Video
Voice
Network-management
1-5
Keyword
Table 1-2, refer to Qos-QoS