QoS configuration on HP 8206zl & 5406zl

[annh83]

Dears,

we have one of the mian customers has already installed HP E-series switches in nwe building which consist of 11 HP 5406zl switches as edge switches (Users and Cisco IP phones are connected to these switches) and 2 HP 8206zl as core or backbone switches for this building. There is a layer 3 connection between HP core switch from this building and Cisco core switch "VSS" in HQ.

Recently, customer has asked us to configure QoS on HP switches to mark voice traffic which is coming from Cisco IP phones that are connected to HP switches, the voice Payload with DSCP vlaue "ef" and voice signaling with DSCP vlaue "cs3".

Note: The Cisco CallManager is installed in HQ.

The QoS configuration on HP edge switches (5406zl) as following:

For voice paylod the QoS marking is based on voice vlan:

5406zl(config)# vlan 13

5406zl(config-vlan13) voice

5406zl(config-vlan13) qos dscp 101110

Note: all ports which connected to Cisco IP phones are tagged under voice vlan

For voice signaling the QoS marking is based on TCP/UDP ports:

5406zl(config)# qos udp-port ipv4 69 dscp 011000
5406zl(config)# qos tcp-port ipv4 8080 dscp 011000
5406zl(config)# qos tcp-port ipv4 2000 dscp 011000
5406zl(config)# qos tcp-port ipv4 2443 dscp 011000
5406zl(config)# qos tcp-port ipv4 2445 dscp 011000
5406zl(config)# qos tcp-port ipv4 3804 dscp 011000

The QoS configuration on HP core switches (8206zl) as following:

8206zl(config)# qos type-of-service diff-services

The issue is the DSCP vlaue is not transferred to Cisco switch over Layer 3 link.

Note: We have checked the QoS configuration from Cisco side with the customer and Cisco TAC engineer and no issues.

Can you help on this issue.

Regards,

[Helper]

Hi,

Have you take a packet capture on the link between the HP and the Cisco device ?

The ToIP packet outgoing from the HP to the Cisco should contain the DSCP value, if not this is an HP problem otherwise this is a Cisco issue.

Bye.

[annh83]

Hi,

Yes, I have already took capture of the packet from HP to Cisco and no DSCP vlaue transferred.

I believe the issue from HP side.

Thanks,

[Helper]

Hi,

Have you tried with a different ipv4 protocol and DSCP (and so on queue) values ?

I can't try it in my lab for the moment, but if possible i will check it on next week.

What is your firmware version ?

Bye.

[annh83]

Hi,

Yes I have tried different values but the same. I can see the DSCP value transferred from edge switch to the HP core switch through layer 2 link but it's not from HP core switch to Cisco switch over Layer 3 link.

The firmware version: K.15.05.0008

Thanks,