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Can someone please HELP

Hello,

One of our remote offices started to have problems with the connection to our main office, where it runs very slow (we have a full point to point T1 line). I took a look at the interfaces and here is what I saw:

Router A Main Office Serial0/0 is up, line protocol is up Hardware is PQUICC with Fractional T1 CSU/DSU Internet address is 192.168.1.110/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set Keepalive set (10 sec) LCP Open Listen: CDPCP Open: IPCP Last input 00:00:28, output 00:00:10, output hang never Last clearing of "show interface" counters 3w5d Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:

26 Queueing strategy: weighted fair Output queue: 0/1000/64/10 (size/max total/threshold/drops) Conversations 0/60/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 1158 kilobits/sec 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 14555278 packets input, 1658156725 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 44 giants, 0 throttles 26735 input errors, 6419 CRC, 12411 frame, 0 overrun, 0 ignored, 7905 abort 17734346 packets output, 830466409 bytes, 0 underruns 0 output errors, 0 collisions, 156 interface resets 0 output buffer failures, 0 output buffers swapped out 150 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up

Router B Remote Office Serial0/0/0 is up, line protocol is up Hardware is GT96K with integrated T1 CSU/DSU Internet address is 192.168.1.111/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, LCP Open Open: IPCP, loopback not set Keepalive set (10 sec) Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters 7w6d Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:

120 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/64/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 1158 kilobits/sec 5 minute input rate 1000 bits/sec, 3 packets/sec 5 minute output rate 3000 bits/sec, 4 packets/sec 40097220 packets input, 3518808637 bytes, 0 no buffer Received 0 broadcasts, 6 runts, 173 giants, 0 throttles 600835 input errors, 600833 CRC, 226525 frame, 66338 overrun, 0 ignored, 319621 abort 31092103 packets output, 3731205662 bytes, 0 underruns 0 output errors, 0 collisions, 94 interface resets 0 output buffer failures, 0 output buffers swapped out 223 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up

I can't figure out from where are the errors coming, could this be the line itself? Any ideas, help, advice is greatly appreciated!

Thank you in advance,

Igor Pinchevskiy

Reply to
Igor Pinchevskiy
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It's most definitely a line problem. You should call your service provide to have them check their line. Also, clear the counters on the interfaces so you can see how fast the errors are increasing. Another thing you can check is the cable that's used to extend the T1 from where the LEC dropped it off to where the router is. If you have a controller interface in the router, check it for errors there - it can help the LEC determine the problem. Good luck

-JC

Reply to
J.Cottingim

Thanks for the advice JC, how can I check the controller interface for errors?

Reply to
Igor Pinchevskiy

I called AT&T (our service provider) they ran both intrusive and non intrusive tests and couldn't find anything, they're going to look at performance monitoring to see if anything shows up. Any other thigs that could be causing this besides a line issue?

Reply to
Igor Pinchevskiy

Serial0/0 is up, line protocol is up Hardware is PQUICC with Fractional T1 CSU/DSU Internet address is 192.168.1.110/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set

Last clearing of "show interface" counters 3w5d

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

26 Queueing strategy: weighted fair Output queue: 0/1000/64/10 (size/max total/threshold/drops) Available Bandwidth 1158 kilobits/sec 14555278 packets input, 1658156725 bytes, 0 no buffer 26735 input errors, 6419 CRC, 12411 frame, 0 overrun, 0 ignored, 7905 abort 0 output errors, 0 collisions, 156 interface resets 150 carrier transitions

Router B Remote Office Serial0/0/0 is up, line protocol is up Hardware is GT96K with integrated T1 CSU/DSU

Last clearing of "show interface" counters 7w6d Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:

120 40097220 packets input, 3518808637 bytes, 0 no buffer 600835 input errors, 600833 CRC, 226525 frame, 66338 overrun, 0 ignored, 319621 abort !!
Reply to
Bod43

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