FAQ-Why Is the Trust Command on AR150&160&200 series, and AR1200 series Different from That on AR2200 series and AR3200 series

Publication Date:  2015-05-06 Views:  156 Downloads:  0
Issue Description
Why Is the Trust Command on AR150&160&200 series, and AR1200 series Different from That on AR2200 series and AR3200 series?
Solution
  • V200R001C00:
On the AR1200 series, the override keyword in the trust command cannot be set. By default, the priority field in a packet is modified.
On the AR2200 series and AR3200 series, the override keyword in the trust command can be set. Users can determine whether to modify the priority field in a packet.
  • From V200R001C01:
When the override keyword is not set in the trust command on the AR1200 series, the DSCP value of a packet remains unchanged after the 802.1p value of the packet is set to the mapping value. When the override keyword is set in the trust command on the AR1200 series, the 802.1p value and DSCP value of a packet are changed to the mapping values.
The override keyword in the trust command can be set on the AR2200 series and AR3200 series. Users can determine whether to modify the priority field in a packet.
  • From V200R002C00:
When the override keyword is not set in the trust command on the AR150&160&200 series, and AR1200 series, the DSCP value of a packet remains unchanged after the 802.1p value of the packet is set to the mapping value. When the override keyword is set in the trust command on the AR150, AR200, and AR1200 series, the 802.1p value and DSCP value of a packet are changed to the mapping values.
The override keyword in the trust command can be set on the AR2200 series and AR3200 series. Users can determine whether to modify the priority field in a packet.
  • From V200R003C00:
When the override keyword is not set in the trust command on the AR150&160&200 series, AR1200 series, AR2204, and AR2200L, the DSCP value of a packet remains unchanged after the 802.1p value of the packet is set to the mapping value. When the override keyword is set in the trust command on the AR150, AR200, AR1200 series, and AR2204, the 802.1p value and DSCP value of a packet are changed to the mapping values.
The override keyword in the trust command can be set on the AR2201, AR2202, AR2220, AR2240, and AR3200 series. Users can determine whether to modify the priority field in a packet.

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