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04-18-2018 01:07 AM - edited 04-18-2018 04:58 AM
04-18-2018 01:07 AM - edited 04-18-2018 04:58 AM
I am marking DSCP using an input QoS policy.
The details of the policy setup are irrelevant, a packet capture from a machine connected to the output port confirms that:
- packet DSCP is 0 by default (without the policy)
- DSCP changes to the desired value (cs6 in this case) when I apply the input policy.
However, when I run
display qos queue-statistics interface
on the output port (I should see prioritization of marked packets here) all queues counters are 0 except for queue 2.
My output port configuration is as follows:
# interface GigabitEthernet1/0/10 port link-mode bridge port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan [list of VLANs] flow-control qos lr outbound cir 514560 cbs 16000000 qos trust dscp #
I have also tried:
- without qos lr on the output port
- with wrr queueing discipline on the output port
- with remark local-precedence in the QoS policy
- with remark ip-precedence
- using remark dscp on an output rule instead of input
In all cases every queue statistic except queue2 stays 0.
I've been through the "H3C S5830 Switch Series ACL and QoS Configuration Guide" document and I don't see any other info on the topic.
Any clue or insight is much appreciated :)
My version information is as follows:
HP Comware Platform Software Comware Software, Version 5.20.105, Release 1118P13 Copyright (c) 2010-2016 Hewlett-Packard Development Company, L.P. HP A5830AF-48G uptime is 75 weeks, 6 days, 8 hours, 34 minutes Slot 1 (M): Uptime is 75 weeks,6 days,8 hours,34 minutes A5830AF-48G with 1 Processor 1024M bytes SDRAM 64M bytes Nor Flash Memory CPLD A Version is 005 CPLD B Version is NULL BootWare Version is 1.06 [SubSlot 0] 48GE + 2COMBO SFP + 2SFP Plus Hardware Version is REV.C Patch Version : None
Solved! Go to Solution.
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04-19-2018 08:16 AM
04-19-2018 08:16 AM
SolutionTurns out that:
Remarking dot1p works; remarking dscp requires qos trust dscp on the input port (remarking is done before mapping, turns out). For a global configuration this is too much config crud, so I stuck with dot1p.
The display qos queue-statistics interface [interface] command is misleading: multicast packets ARE classified but not listed in the queue??