1. Home
  2. Cisco Systems
  3. Wat is carrier transition.......

Wat is carrier transition.......

Hi group,

I m new to this group and just join from today only....and this is my first query.....

I m CCNA certified and working in HCL in India as a Network Monitoring Engineer. In short HCL is service provider in india who gives Lease line , ISDN , etc services to all over india.

I m responsible for giving support to customers daily problem....

I need some help.

We ve one Lease line of 64 K and is just commisioned.

But i m having so much problem in counter of carrier transition and interface resets.Even i resets then they get increased and i m not getting with which they r related. And one more thing thr r some periodic drops in line too. Thr r some CRC in line, is that issue in this scenario....

If thr is any document available on net then pls guide me....

Can anyone help me in this issue.

Following is output of that interface..........

Serial1/0 is up, line protocol is down Hardware is M4T Description: SUZLON NASIK - DHULE Internet address is X.X.X.X/X MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation HDLC, crc 16, loopback not set Keepalive set (10 sec) Last input 00:00:09, output 00:00:04, output hang never Last clearing of "show interface" counters 01:04:30 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 0/30/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 1536 kilobits/sec 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 262 packets input, 6288 bytes, 0 no buffer Received 262 broadcasts, 0 runts, 0 giants, 0 throttles 4 input errors, 2 CRC, 0 frame, 0 overrun, 0 ignored, 2 abort 1181 packets output, 140993 bytes, 0 underruns 0 output errors, 0 collisions, 175 interface resets 0 output buffer failures, 0 output buffers swapped out

178 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up

U can see counter value of carrier transition is 178....wat cud b a problem here....

THANKS IN ADVANCE.....

Regards,

Sandy, HCL Infinet Ltd. India.

Reply to
sandi
Loading thread data ...

Freqeunt drops in connection is usually to do with ure telecom provider. Report the problem to them. There are little errors , so u r line is ok at layer 1. Keep an eye on the error counters, if they increase, check cabling..

Reply to
luqs

you can also use the show controller T1 and look at the output. This will help telco know what the issues are adn that your config is correct. if that is the case.

Data in current interval (430 seconds elapsed): 0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs Total Data (last 24 hours) 0 Line Code Violations, 0 Path Code Violations, 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins, 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Reply to
larkspur

Cabling-Design.com Forums website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.