I've a C1801 with IOS C180X Software (C180X-BROADBAND-M), Version 12.4(15)T1 experiencing a problem related to Qos.
The config is attached.
As soon as the ATM come up the "service-policy output cos-po2-bhw-atm-0-1-70" statement disapper from the config under ATM0.1 pvc 8/35.
*Jan 29 17:11:18: %LINK-3-UPDOWN: Interface ATM0, changed state to up
*Jan 29 17:11:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to up
*Jan 29 17:11:24: I/f ATM0.1 VC 8/35 class cos-map-bhw-fe-ge-0.0-vo requested bandwidth 80 (kbps), available only 0 (kbps)
*Jan 29 17:11:24: Service policy detach failed
#sh run interface atM 0.1
Current configuration : 193 bytes
interface ATM0.1 point-to-point
ip address 10.205.1.22 255.255.255.252
no ip redirects
no ip proxy-arp
no snmp trap link-status
Any idea ?
on other threads about this someone has reported that to be able to apply a CBWFQ to an ATM subinterface you need to define under the pvc some ATM Class of service
the default is an UBR (unspecified bit rate) that has no guaranteed resources.
I would try to configure some BW resources for the pvc using vbr-nrt.
Hope to help