Alarm Log

[Monrovia]

Dear all,

I am getting this alarm log - Class 0. can you tell me what does this mean? is there any problem with the trunks? if i clear this alarm, it will go. but again after some time, may be in one/two hours, it is coming back!

[tt]
CLASS: 0
303 DATA LINK ALARM
DATE TIME ALP NOIF UNIT EQU BRDID INF1 INF2
19AUG10 01:51:14 10 1 SLP60 001-0-30-00 57 259 5
RDATE RTIME
19AUG10 01:51:30
303 DATA LINK ALARM
DATE TIME ALP NOIF UNIT EQU BRDID INF1 INF2
19AUG10 08:27:57 8 8 SLP60 001-0-30-00 57 259 7
RDATE RTIME
19AUG10 08:27:57
303 DATA LINK ALARM
DATE TIME ALP NOIF UNIT EQU BRDID INF1 INF2
19AUG10 08:28:01 9 8 SLP60 001-0-30-00 57 259 0
RDATE RTIME
19AUG10 08:28:28
303 DATA LINK ALARM
DATE TIME ALP NOIF UNIT EQU BRDID INF1 INF2
19AUG10 09:29:17 7 208 SLP60 001-0-30-00 57 259 10
RDATE RTIME
19AUG10 09:29:21 [/tt]

Thanks & regards

 

[stripey61]

Hope this helps.


The TLU-board has discovered an error on the data link layer and has informed layer 3. Layer 3 has analysed the type of error and according to type some action is performed.

Possible actions are, request link restart, send alarm and block board. Assumption is that cause for alarm will expire after a while. The alarm will be acknowledged when the TLU-board receives information from the other side that the data link layer is in right state. Layer 3 will be informed by primitive that the data link is established again.

ADD INFO 1: Pointer to the interface.

ADD INFO 2:
0, G fault, Unsuccessful data link establishment

1, H fault, No DL (Data Link) -RELEASE acknowledgement

2, Maximum retransmit count exceeded.

3, J fault, Invalid received sequence number.

4, K fault, Frame reject response.

5, A fault, Not expected supervisory response.

6, B, C, D, E fault, Not expected UA (Unnumbered Acknowledgement or DM (Disconnected Mode) response.

7, F fault, SABME (Set Asynchronous Balanced Mode Extended) from peer received.

8, Q fault, Blocking received.

9, R fault, DM (Disconnected Mode) response received.

10, I fault, No response on RR (Receiver Ready) or RNR (Receiver Not Ready).

11, O fault, Received information field > N201 (260 Octets)

12, L fault, Undefined control field.

13, N fault, Received frame with incorrect length.

14, M fault.

15, P fault, N2X4, Maximum number of retransmission of RNR frames exceeded.

18, TEI Removal received.

26, TEI Removal received.

 

[Monrovia]

thanks dear, i found the problem and it has been solved.

actually it was the problem with the RJ45 connector which is connecting to the CISCO router. the E/// connecting cable was not matching with the router. so I cut it away and crimped with another RJ45 clip, which is available in the market.

Thanks again stripey