Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

6608 QoS

Does anyone know if a 6608 module (configured as a PRI) will "by default" set DSCP values for control traffic and RTP stream or does this have to be done via ACLs?

3 REPLIES
New Member

Re: 6608 QoS

Hi James,

The Catalyst switch will indeed treat the 6608 internal ports as trust-cos. For that reason, the 6608 marks RTP packets with an internal CoS value os 5. In addition, the default cos-to-dscp mapping is to map CoS=5 to DSCP=40.

Regards,

Mike.

New Member

Re: 6608 QoS

Thank you for the response. I am being told by Cisco that the 6608 does not mark traffic and that ACLs are required.

Another question, since traffic from the PSTN has no CoS value does the 6608 remark all traffic coming from the PSTN to Cos of 5 (control and media)? Can you point me to supporting documentation on this?

New Member

Re: 6608 QoS

Hi -

I agree with Mike, the 6608 automatically sets the proper CoS values and the 6509 (with a PFC card) trusts the values.

I cant find any supporting documentation though.....

-Jaret

93
Views
0
Helpful
3
Replies
CreatePlease login to create content