Netvanta 3140 QOS

[leduc]

My Adtran 3140 version 11.5.1 QOS config is not getting matches on the second tier of my QOS config. That tier is looking for matches on DSCP 24. The first tier is getting matches on EF packets ok.

I know that packets are getting to the Adtran marked as DSCP 24. Verified by eliminating the first tier (Qos map voip 10) and just using Qos map voip 20. When I do and run show Qos map int go 0/2 I see matches of DSCP 24 but that doesn't help me with EF

Now I realize I could add DSCP 24 matches in the first tier Qos map voip 10 along with EF but then I can't see the actual matches on DSCP 24 as the show QOS map int go 0/2 will not itemize the matches per match statement. At least to that I can see. This should work with two tiers

Here is my config and show dos map command. For some reason the 2md tier gets ignored even though matched packets are hitting the Adtran. Tried about 10 variations with no luck with tiered approach.

Thanks

qos map voip 10

  match dscp 46

  match ip list voice

  priority percent 10

qos map voip 20

  match dscp 24

  priority percent 5

!

interface gigabit-eth 0/2

  ip address  10.11.1.2  255.255.255.248

  traffic-shape rate 100000000

  qos-policy out voip

  no shutdown

Router#sho qos map  interface gi 0/2

giga-eth 0/2

  qos-policy out: voip

   map entry 10

     match dscp 46

     match ip list voice

     priority bandwidth: 10 (% of total)

     burst budget 249946/250000 bytes (current/max)

     packets matched: 444323, bytes matched: 208939571

     packets dropped: 0, bytes dropped: 0

     5 minute offered rate 48488 bits/sec, drop rate 0 bits/sec

   map entry 20

     match dscp 24

     priority bandwidth: 5 (% of total)

     burst budget 125000/125000 bytes (current/max)

     packets matched: 0, bytes matched: 0

     packets dropped: 0, bytes dropped: 0

     5 minute offered rate 0 bits/sec, drop rate 0 bits/sec

   map entry default

     packets matched: 72431350, bytes matched: 5319700391

     packets dropped: 0, bytes dropped: 0

     5 minute offered rate 363472 bits/sec, drop rate 0 bits/sec

[jayh]

DSCP decimal 24 is kind of an unusual value. Are you sure that's what you're sending? Is this supposed to match SIP traffic? That's typically AF31 which is decimal 26. Does Wireshark show any packets entering with DSCP 24?

[leduc]

Thanks for the reply.  It is for Shoretel signaling, they used to used DSCP 26 but now use DSCP24/CS3. No SIP / 5060 port used in this environment.

DSCP24/CS3 does show up marked in Wireshark. I have tried adding CS3 in the match statements in the tier two QOS definition. it also appears in the Adtran Show QOS map int go 0/2 when I configure my QOS Map like this:

qos map voip 10

  match dscp 24

  priority percent 5

!

inter gig 0/2

QOS-policy out voip

But this policy leaves out the required policy for EF. Like I mentioned I could combine both the EF audio and the DSCP 24 signaling in the same priority queue but the requirements are not the same as far as bandwidth and priority is concerned between the two.

I show be able to have a QOS map voip 10 for EF and QOS amor voip 20 for signaling in two separate entries and have matches. IT appears it only works with on QOS map entry. Hope I am making this clear enough.