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New Member

ATM Per VC queueing

In trying to get per VC queueing going on my 6513 with a WANFlex WAN adapter I got the following message:

switch#sh queueing interface atM 3/0/0 vc 1/51

VC 1/51: Per VC queue is not enabled.

Am I right in assuming that this per VC queueing is possible on this hardware?

switch#sh mod

Mod Ports Card Type Model

--- ----- -------------------------------------- ------------------

1 24 CEF720 24 port 1000mb SFP WS-X6724-SFP

3 0 2 port adapter Enhanced FlexWAN WS-X6582-2PA

5 5 Communication Media Module WS-SVC-CMM

7 2 Supervisor Engine 720 (Active) WS-SUP720-3B

8 2 Supervisor Engine 720 (Hot) WS-SUP720-3B

11 48 48-port 10/100 mb RJ45 WS-X6148-45AF

12 48 48-port 10/100 mb RJ45 WS-X6148-45AF

13 48 48-port 10/100 mb RJ45 WS-X6148-45AF

interface ATM3/0/0

no ip address


interface ATM3/0/0.1 point-to-point

bandwidth 25000

ip nbar protocol-discovery

bundle CORPWAN

protocol ip no broadcast

no broadcast

encapsulation aal5snap

pvc-bundle ALLELSE 1/51

class-vc BestEffortPVC

service-policy out WAN

pvc-bundle VOIP 1/50

class-vc VoIP-PVC

service-policy out WAN


Re: ATM Per VC queueing

On the 6500/Flexwan, the MSFC has no visibility as to what is going on with the individual queues in the PA. What information are you looking to get? There are ways to look at what is going on with the queueing of the ATM adaptor, but you need to console into the Flexwan itself to see it.

To do this, do a:

ipc-con 3 0

(this will put you into slot 3, bay 0)

From here you can do 'show interface' (counters are cleared upon read)

'show controllers' (will give you lots more info than msfc)

New Member

Re: ATM Per VC queueing

I'm looking to get any clue to tell me that per VC queueing is working. There is a QoS document on cisco's website just for the FlexWAN module and I've followed it to the letter but per VC queueing is disabled as reported by my output in my original post.

I've tried similar show commands on the FlexWAN blade itself but the closest that I could get to work was the following:

FlexWAN-ENH-3/0#sh queueing interface atM 0/0

Interface ATM0/0 queueing strategy: fifo

In fact if I do a show run on the FlexWAN it looks completely unconfigured. For info all this is being tried out on a disconnected ATM interface, should be getting it connected tomorrow but hoped to have all the config prepared in advance etc.