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Beginner

ASR9000 System Level Priority

hi,

Got a question,

ASR9k has 2 system HP queue and a default queue, there is no dokument i can find that descripe how packets are mapped into this system level queues per default, from packet enter the ingress interface util the packet leave the egress interface.

If you configure the priority-level at the egress direction as output policy, will the packet matched be tagged with this same system level priority from ingress port already? The reason is that from bridge FPGA towards NP there is only 15Gbps full duplex bandwdith, if traffic are not tagged with hp from the ingress already, it will be dropped when traffic over 15 Gbps.

Cheers

Guan

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Cisco Employee

Hi Guan,

I recognized the lack of documentation to that topic and for that purpose I created a technote on A9k QOS

check out this document

ASR9000/XR: Understanding QOS on the A9K platform, default marking behavior, troubleshooting

Xander

sr Tech Lead ASR9000

CCIE