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Best practice to remark all incoming traffic with DSCP to EF.

 
mekand
Occasional Advisor

Best practice to remark all incoming traffic with DSCP to EF.

Hello.

I need to mark all incoming traffic from a switch port to DSCP EF and assign it to a queue.

Switch is running Comware 7.10.

Please, can someone validate this config?

#
traffic classifier ALL-INCOMING-TRAFFIC-FROM-DECT-SERVER operator and
 if-match any
#
traffic behavior ALL-INCOMING-TRAFFIC-FROM-DECT-SERVER
 remark dscp ef
 remark local-precedence 5
#
qos policy REMARKING-ALL-INCOMING-TRAFFIC-FROM-DECT-SERVER
 classifier ALL-INCOMING-TRAFFIC-FROM-DECT-SERVER behavior ALL-INCOMING-TRAFFIC-FROM-DECT-SERVER
#
interface GigabitEthernet1/0/1
 port link-mode bridge
 combo enable fiber
 qos apply policy ALL-INCOMING-TRAFFIC-FROM-DECT-SERVER inbound
#

Thanks.

A

3 REPLIES
VoIP-Buddy
HPE Pro

Re: Best practice to remark all incoming traffic with DSCP to EF.

Hi Mekand!

With these kind of questions we really need to know what switch you are talking about.  Even though all of them run Comware, not all of them have the same features available.  For example, lower end switches don't have as many QOS queues as the higher end switches do.

Also, the Comware version number is more than the 7.10... the numbers and letters after that are actually more important to know.

Thanks!
David

Vince-Whirlwind
Honored Contributor

Re: Best practice to remark all incoming traffic with DSCP to EF.

Having said that, the logic looks sound.

I wouldn't worry too much about fiddling with queues - with an IP Precedence of 5, the traffic will be prioritised via one of the higher priority queues (Q3 if there are 4, Q6 if there are 8) so it should be fine.

Also, the most important thing is to provision enough bandwidth in the first place - in an ideal world, QoS does nothing because no packets are being dropped due to congestion.
So, if you're experiencing congestion, upgrade 1Gb links to 10Gb and aggregate multiple links together until congestion is eliminated.

mekand
Occasional Advisor

Re: Best practice to remark all incoming traffic with DSCP to EF.

Hi David and many thanks for your help.

II'm using 5130HI switch series running software version 7.1.045, Release 1121P03.

Regards.

Andrea