QoS settings in switch network...

[Jorch67]

If I have situation visualized below and I want to pass data from cliento to another which is already dscp tagged can I preseve tagging by using "qos trust dspc" command in upling interface? For some reason I cannot find documentation explaining this command...

[dts3909PT]

I am tring also to figure out HPE QoS and am having a hard time finding quality information explaining HPE's use of QoS.

See the attached files -  hpe matrix, I believe your switches require version 16.02 at a minimum to accept QoS TRUST.  Search the document for "trust."

Sorry for lack of help.

[Jorch67]

Fortunately seems like that my sw versions supports "qos trust"...

I just read chapter 4 (starting from page 127) from wron sw version's (15.18) Advanced Traffic Management Guide (https://support.hpe.com/hpsc/doc/public/display?docId=c04777702) and I find that quite ok. If I understood right I don't need qos trust because without being denied switches should obey given dscp-mappings by default (possibly!?!?)

Now I try to find that ATMG documentation for sw version 16.02 or more!

--EDIT---

Found sw 16.05 version https://support.hpe.com/hpsc/doc/public/display?docId=a00038722en_us but still no information about "qos trust"... If somebody from HPE/Aruba sees this message, would you mind to point me an document which tells what "qos trust.." does and where it should be used.

[dts3909PT]

I have found no good single source of explanation about HPE QoS.

This site was helpful to me:  https://thenetworkstack.com/hp-switch-provision-qos-guide/#comment-3782175514

[Jorch67]

Good solid info but nothing new considering "official" manual about traffic management.

Still need to know about "qos trust" and what it's good for?

[dts3909]

The following link is not specifically for procurve/provision switches the concept may provide insight assuming hpe is trying to be consistant accross their platforms:

https://support.hpe.com/hpsc/doc/public/display?sp4ts.oid=null&docLocale=en_US&docId=emr_na-c03351297

[dts3909PT]

The following is from CISCO but may help you:

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/software/15-2_2_e/qos/configuration_guide/b_qos_1522e_2960X_cg/b_qos_1522e_2960X_cg_chapter_010.html

See page 22 for "TRUST" diagram.

[dts3909PT]

This manual discusses TRUST:

https://support.hpe.com/hpsc/doc/public/display?sp4ts.oid=null&docLocale=en_US&docId=emr_na-a00038741en_us