DSL traffic issue on Cisco 2821

Given the below attached config on a Cisco 2821 router with 2 HWIC-1ADSL
cards, does anybody have an idea why traffic will load-balance fine for
a while, but then seemingly randomly drop traffic on one ATM interface,
while still working on the other? It varies which interface will drop.
When there is no traffic, "sho ip int bri" indicates up/up for all
interfaces. It requires an interface bounce to get it to come back.

Would OAM help?

Thanks,
Brandon



version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
!
boot-start-marker
boot system flash:c2800nm-spservicesk9-mz.124-9.T1.bin
boot-end-marker
!
logging buffered 10000 warnings
!
no aaa new-model
!
resource policy
!
!
!
ip cef
!
!
interface ATM0/0/0
no ip address
no atm ilmi-keepalive
dsl operating-mode adsl2+
!
interface ATM0/0/0.1 point-to-point
no snmp trap link-status
pvc 0/32
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface ATM0/1/0
no ip address
no atm ilmi-keepalive
dsl operating-mode adsl2+
!
interface ATM0/1/0.1 point-to-point
no snmp trap link-status
pvc 0/32
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
!
interface Dialer0
ip address negotiated
no ip proxy-arp
encapsulation ppp
dialer pool 1
dialer vpdn
dialer-group 1
ppp pap sent-username xxxx password 0 xxxx
ppp multilink
!
ip route 0.0.0.0 0.0.0.0 Dialer0
!