Don't know what the protocol command is buying you, try adding encapsulation aal5snap. Below is a working back to back betwen a 750 and a 12008 but the config should be the same:
interface ATM0/1/0 no ip address no ip directed-broadcast no ip mroute-cache load-interval 30 atm sonet stm-1 no atm enable-ilmi-trap atm ilmi-keepalive ! interface ATM0/1/0.32 point-to-point ip address 100.1.1.1 255.255.255.252 no ip directed-broadcast ip summary-address eigrp 1 204.155.128.0 255.255.240.0 5 ip summary-address eigrp 1 172.16.0.0 255.240.0.0 5 no atm enable-ilmi-trap pvc madman 1/32 encapsulation aal5snap ------------------------------------------ interface ATM4/0 no ip address no ip directed-broadcast no atm enable-ilmi-trap no atm ilmi-keepalive ! interface ATM4/0.32 point-to-point ip address 100.1.1.2 255.255.255.252 no ip directed-broadcast no atm enable-ilmi-trap pvc mad7500 1/32 encapsulation aal5snap Dave Paul Oh wrote: > > Hi, professionals. > > I'm trying to connect two Cisco 3600 router with OC3 Multimode interface > (NM-1A-OC3MM) in a back-to-back fashion using IOS 12.2(8)T. > > [Router 1 ATM 1/0] [Router 2 ATM 1/0] > > Basically, my link flaps and cannot establish a stable connection. > Configuration is done in such a way that.. > > router #1 > ------------ > interface ATM1/0 > no ip address > no atm ilmi-keepalive > ! > interface ATM1/0.200 point-to-point > ip address 2.2.2.2 255.255.255.0 > pvc 200/200 > protocol ip 2.2.2.1 broadcast > ! > > router #2 > --------------- > interface ATM1/0 > no ip address > no atm ilmi-keepalive > ! > interface ATM1/0.200 point-to-point > ip address 2.2.2.1 255.255.255.0 > pvc 200/200 > protocol ip 2.2.2.2 broadcast > ! > > Does anyone have any idea if I am missing in the configuration? Anybody > have any experience in OC3 MM link flapping? Please help. Thanks in > advance. -Paul > > Below is output dump from my router #1 with 'debug atm events' on. > > Router#debug atm events > ATM events debugging is on > Router# > Router# > Router# > 00:46:00: %LINK-3-UPDOWN: Interface ATM1/0, changed state to up > 00:46:00: atmoc3_cstate(ATM1/0): state=4 atm_lineup=0 > 00:46:00: atmoc3_state_change(ATM1/0): restarting 28 VCs > 00:46:00: rs8234_setup_vc(ATM1/0): vc:2 vpi:200 vci:200 > 00:46:00: peak rate configured is 155000000 > 00:46:00: rs8234_setup_vc_common() VCD=2 vp/vc=200/200 etype=0 > 00:46:00: rs8234_open_connection_seg > 00:46:00: vcd:2 > 00:46:00: vcc_id:166 > 00:46:00: ds->p_vcd_table[ccb_ptr->vcd].host_vccid:166 > 00:46:00: ccb_ptr->av_bit_rate:0 > 00:46:00: ccb_ptr->cdvt:0 > 00:46:00: ccb_ptr->peak_bit_rate:148772272 > 00:46:00: p_host_seg_vc_table:0x82A6C910: > 00:46:00: aal type word value 0x80100080. > 00:46:00: rs8234_setup_cos(ATM1/0): vc:2 wred_name:- max_q:0 > 00:46:00: %ATM-5-UPDOWN: Changing VC 200/200 VC-state to PVC activated. > 00:46:02: %LINK-3-UPDOWN: Interface ATM1/0, changed state to down > 00:46:02: atmoc3_cstate(ATM1/0): state=0 atm_lineup=1 > 00:46:02: Resetting ATM1/0 > 00:46:02: rs8234_teardown_vc(ATM1/0): vc:2 vpi:200 vci:200 > 00:46:02: Status and ptr is 0 Status Q is 0 > 00:46:02: %ATM-5-UPDOWN: Changing VC 200/200 VC-state to PVC deactivated. > 00:46:22: %LINK-3-UPDOWN: Interface ATM1/0, changed state to up > 00:46:22: atmoc3_cstate(ATM1/0): state=4 atm_lineup=0 > 00:46:22: atmoc3_state_change(ATM1/0): restarting 28 VCs > 00:46:22: rs8234_setup_vc(ATM1/0): vc:2 vpi:200 vci:200 > 00:46:22: peak rate configured is 155000000 > 00:46:22: rs8234_setup_vc_common() VCD=2 vp/vc=200/200 etype=0 > 00:46:22: rs8234_open_connection_seg > 00:46:22: vcd:2 > 00:46:22: vcc_id:167 > 00:46:22: ds->p_vcd_table[ccb_ptr->vcd].host_vccid:167 > 00:46:22: ccb_ptr->av_bit_rate:0 > 00:46:22: ccb_ptr->cdvt:0 > 00:46:22: ccb_ptr->peak_bit_rate:148772272 > 00:46:22: p_host_seg_vc_table:0x82A6C968: > 00:46:22: aal type word value 0x80100080. > 00:46:22: rs8234_setup_cos(ATM1/0): vc:2 wred_name:- max_q:0 > 00:46:22: %ATM-5-UPDOWN: Changing VC 200/200 VC-state to PVC activated. > 00:46:24: %LINK-3-UPDOWN: Interface ATM1/0, changed state to down -- David Madland CCIE# 2016 Sr. Network Engineer Qwest Communications 612-664-3367 "You don't make the poor richer by making the rich poorer." --Winston Churchill Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=53144&t=53134 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

