56-k circuit not coming up

Unanswered Question

Hello,

I am having problems getting my 56-k line connected. Following is my configuration for s0/0. Also i see my DTE-LMI down. I have external 56-k DSU also connected with the Router. Any suggestions as to what may be causing this problem.

LMI-Type i change to cisco from ansi but same thing no difference. My Carrier Transition and Interface resets are also increasing. Any suggestions, i will appreciate it.

Debug Output

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

*Mar 1 23:26:17.754: Serial0/0(out): StEnq, myseq 2, yourseen 0, DTE down

*Mar 1 23:26:17.754: datagramstart = 0x7DC9D54, datagramsize = 13

*Mar 1 23:26:17.754: FR encap = 0xFCF10309

*Mar 1 23:26:17.754: 00 75 01 01 00 03 02 02 00

*Mar 1 23:26:17.754:

*Mar 1 23:26:27.754: Serial0/0(out): StEnq, myseq 3, yourseen 0, DTE down

*Mar 1 23:26:27.754: datagramstart = 0x7DC8954, datagramsize = 13

*Mar 1 23:26:27.754: FR encap = 0xFCF10309

*Mar 1 23:26:27.754: 00 75 01 01 00 03 02 03 00

*Mar 1 23:26:27.754:

Router-56k-New#

Router configuration output:

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

interface Serial0/0

description 56 k

bandwidth 56

ip address 78.x.x.5 255.255.255.252

encapsulation frame-relay IETF

frame-relay interface-dlci 100

no frame-relay inverse-arp

frame-relay lmi-type cisco

end

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

Router-56k-New#sh int serial 0/0

Serial0/0 is up, line protocol is down

Hardware is PowerQUICC Serial

Description: 56 k

Internet address is 78.82.56.5/30

MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation FRAME-RELAY IETF, loopback not set

Keepalive set (10 sec)

LMI enq sent 57, LMI stat recvd 0, LMI upd recvd 0, DTE LMI down

LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0

LMI DLCI 1023 LMI type is CISCO frame relay DTE

FR SVC disabled, LAPF state down

Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0

Last input never, output 00:00:05, output hang never

Last clearing of "show interface" counters 00:09:35

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: weighted fair

Output queue: 0/1000/64/0 (size/max total/threshold/drops)

Conversations 0/1/256 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

Available Bandwidth 42 kilobits/sec

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

57 packets output, 741 bytes, 0 underruns

0 output errors, 0 collisions, 19 interface resets

0 output buffer failures, 0 output buffers swapped out

19 carrier transitions

DCD=up DSR=up DTR=up RTS=up CTS=up

I have this problem too.
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purohit_810 Thu, 08/30/2007 - 07:05

This LMI type gave by ISP???

frame-relay lmi-type cisco

Please also try by

frame-relay lmi-type ansi and q933a

It sends LMI but not receives..by below output.

LMI enq sent 57, LMI stat recvd 0, LMI upd recvd 0, DTE LMI down

LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0

Second check at both end Keepalive and IP address and Ecapsulation are same or appropriate.

Regards,

Dharmesh Purohit

I tried different LMI-TYPE but still same. Kindly check my Interface Ser0/0 and see if i could be missing anything from the configuration point of view. Will appreciate

Router-56k-New#sh runn int serial 0/0

Building configuration...

Current configuration : 203 bytes

!

interface Serial0/0

description 56 k

ip address 78.82.56.5 255.255.255.252

encapsulation frame-relay IETF

frame-relay interface-dlci 100

no frame-relay inverse-arp

frame-relay lmi-type ansi

end

Router-56k-New#sh fram

Router-56k-New#sh frame-relay pvc

PVC Statistics for interface Serial0/0 (Frame Relay DTE)

Active Inactive Deleted Static

Local 0 1 0 0

Switched 0 0 0 0

Unused 0 0 0 0

DLCI = 100, DLCI USAGE = LOCAL, PVC STATUS = INACTIVE, INTERFACE = Serial0/0

input pkts 0 output pkts 0 in bytes 0

out bytes 0 dropped pkts 0 in pkts dropped 0

out pkts dropped 0 out bytes dropped 0

in FECN pkts 0 in BECN pkts 0 out FECN pkts 0

out BECN pkts 0 in DE pkts 0 out DE pkts 0

out bcast pkts 0 out bcast bytes 0

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

pvc create time 00:14:32, last time pvc status changed 00:13:52

Router-56k-New#

Edison Ortiz Thu, 08/30/2007 - 14:20

Your configuration looks fine as you are seeing DLCI information from the ISP frame-relay switch.

The problem seems to be from the ISP frame-relay switch to the remote destination network /or/ within the ISP frame-relay switch itself.

Please open a ticket with the ISP, there is nothing you can do to fix this at the router.

ronbuchalski Mon, 11/02/2009 - 15:53

It should be noted that since IOS 11.2 LMI autosense is supported, so you no longer need to explicitly configure an LMI type on an interface. When the interface comes up, the router will send an LMI message for each LMI type, and wait for an answer. The response will tell the interface which LMI type to use.

See:

http://www.cisco.com/en/US/docs/ios/12_3/wan/command/reference/wan_f1g.html#wp1036474

-rb

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