ATM over E3 Unframed WAN

[h00nix101]

We are installing a new E3 unframed circuit 34Mb, and trying to use existing PA-A3-E3 ATM cards.

Since there is no longer an ATM switch, is there anything we need to do to account for this?

Below is the configuration, which has been used but is unsucessful.

Both routers are 7204VXR's running 12.2(28).

Router#1

interface ATM1/0

no ip address

ip route-cache flow

no atm ilmi-keepalive

e3-scramble

!

interface ATM1/0.99 point-to-point

bandwidth 34000

ip address 10.155.211.129 255.255.255.252

pvc 0/99

encapsulation aal5snap

Router #2

interface ATM1/0

no ip address

ip route-cache flow

no atm ilmi-keepalive

e3-scramble

!

interface ATM1/0.99 point-to-point

bandwidth 34000

ip address 10.155.211.130 255.255.255.252

pvc 0/99

encapsulation aal5snap

Thanks

[mheusinger]

Hello,

what is the error codition? Output of "show interface"?

Martin

[h00nix101]

ATM 1/0 is down no traffic at all, both sides.

There is a fault light indicator light on both sides.

on the respective ATM cards. CD is light green.

from show controllers: Facility ALarm: AIS.

The circuit has been checked by Telco and its apparently fine.

Is each router expecting a repsone from an ATM switch, thus raising the AIS?

Thanks

Heres the output from debug

012146: Apr 6 20:07:17.559 DST: atmdx_cstate(ATM1/0): state=6 atm_lineup=0

012147: Apr 6 20:07:18.567 DST: (ATM1/0) Received Heartbeat message

012148: Apr 6 20:07:19.851 DST: (ATM1/0) Received Heartbeat message

012149: Apr 6 20:07:21.139 DST: (ATM1/0) Received Heartbeat message

012150: Apr 6 20:07:22.427 DST: (ATM1/0) Received Heartbeat message

012151: Apr 6 20:07:23.199 DST: -Traceback= 6038ADC0 605831E4 60582AA8 60582780 6053C510 6054A66C 605AEBE8 605AEBD4

012152: Apr 6 20:07:23.199 DST: atmdx_reset(ATM1/0): state=0 status=0x44218000 oir_flags=0

012153: Apr 6 20:07:23.199 DST: atm: config_status 0, flags 0x48100

012154: Apr 6 20:07:23.199 DST: atmdx config(ATM1/0)

012155: Apr 6 20:07:23.199 DST: atmdx_pas_config(ATM1/0): max_vpi_bits 8, max_vci_bits 16, max_cell_rate 80000, max_vc 4096

012156: Apr 6 20:07:23.199 DST: clock_source 1, loop_status 0, scr 1, txlbo 0, framing 3

012157: Apr 6 20:07:23.219 DST: atmdx_enable(ATM1/0): state 0 atm config_status 0, flags 48100

012158: Apr 6 20:07:23.219 DST: atmdx_enable(ATM1/0): restarting vc

012159: Apr 6 20:07:23.219 DST: atmdx_pas_restart(ATM1/0): state 0

012160: Apr 6 20:07:23.315 DST: pmc_pm7345_isr: received framer int 0x48, old alarm 0x0000

012161: Apr 6 20:07:23.315 DST: mgmt interrupt status 0x00000240

012162: Apr 6 20:07:23.315 DST: e3 frmr interrupt status 0x11

012163: Apr 6 20:07:23.315 DST: e3 alarm maint_int 0xED status 0xBC alarm 0x0020

012164: Apr 6 20:07:23.315 DST: atmdx_alarm_handler(ATM1/0): alarm 0x0020, state 0

012165: Apr 6 20:07:23.315 DST: ATM1/0: LED turned 1

012166: Apr 6 20:07:23.315 DST: ATM(ATM1/0): interface not up

012167: Apr 6 20:07:23.315 DST: ATMSIG: sscop open successful

012168: Apr 6 20:07:23.711 DST: (ATM1/0) Received Heartbeat message

012169: Apr 6 20:07:23.995 DST: pmon_change 0x08, cppm_change 0x50

012171: Apr 6 20:07:24.999 DST: (ATM1/0) Received Heartbeat message

012172: Apr 6 20:07:25.199 DST: %LINK-3-UPDOWN: Interface ATM1/0, changed state to down

[mheusinger]

How did you configure clocking?

AIS is usually present in a framed line. It tells, that this interface is OK, but the other end (connected device) is having a problem. The reason can be f.e. LOS, LOF and the like.

So you would need to check the other end. Once you figure that the AIS is from the provider equipment (if both routers are reporting AIS) he needs to check this again.

You might also want to read the document "Troubleshooting Line Problems and Errors on DS-3 and E3 ATM Interfaces" at

http://www.cisco.com/en/US/tech/tk39/tk48/technologies_tech_note09186a0080111093.shtml

Hope this helps! PLease rate all posts.

Regards, Martin

[h00nix101]

WAN circuit is unframed.

Used atm clocking internal under both ATM 1/0 cards