07-05-2020 06:21 AM
Hi,
We have to configure QoS on 2960 LAN Base switch for Voice, considering https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-2_53_se/configuration/guide/2960scg/swqos.html#20651
We set DSCP from Voice devices, and trust dscp on ports. Howerver, we cannot find what is the default policy for bandwith. Does it mean that with "only" mls qos activation and trust dscp on port, traffic is not priorized ?
Thanks for help,
Regards,
Solved! Go to Solution.
07-05-2020 06:07 PM
Hi,
we should see somewhere what policy is applied to priorize packets ?
Configuring policy is optional. You configure policy for shaping, queening, marking, etc... but that is not always needed.
If you want a simple qos config for VoIP phones, you can configure Auto-QOS or manually configure qos for access ports and trunk ports. After qos is configures, you should be able to see the marking using wireshark.
HTH
07-05-2020 09:41 AM
Hi,
We set DSCP from Voice devices, and trust dscp on ports. Howerver, we cannot find what is the default policy for bandwith. Does it mean that with "only" mls qos activation and trust dscp on port, traffic is not priorized ?
With DSCP, the traffic is prioritized for voice traffic (CoS=5) and data traffic gets low priority, which is default (CoS=0).
HTH
07-05-2020 11:41 AM
Hi,
Thanks for reply. But after configuring DSCP, we should see somewhere what policy is applied to priorize packets ?
Where could we see such configuration ? Doc speaks about policies or policer, but none is configured. Is there any defaut config about this ?
Regards,
07-05-2020 06:07 PM
Hi,
we should see somewhere what policy is applied to priorize packets ?
Configuring policy is optional. You configure policy for shaping, queening, marking, etc... but that is not always needed.
If you want a simple qos config for VoIP phones, you can configure Auto-QOS or manually configure qos for access ports and trunk ports. After qos is configures, you should be able to see the marking using wireshark.
HTH
07-09-2020 10:54 AM
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