I once knew a guy who could put his hands on a defective piece of gear and command, "Work!, Damn it!" ... and have the thing come back to life often enough to leave you wondering. The rest of us have to search for the cause of the trouble. Several thoughts: 1) Are your router and CSU/DSU connected to a UPS? If not, power issues might cause problems. 2) Can you correlate the outages to any external event such as rain storms? Lightning could affect #1 above. If your last mile or so is over copper then improperly sealed cable splices or repeater cabinets could be affected by moisture. 3) You say "once a month". Is it that periodic? Or are you implying an average? Do you have logs or e-mail messages that would provide information about outages that you can plot on a calendar? That data could be used in #2 above. 4) Time of day. When the outages occur do they happen about the same time? Day or night? I'm thinking nights and janitorial projects that affect #1 above. 5) Do the troubles clear by themselves or as soon as someone starts testing? 6) You might request that Pac Bell reprovision the circuit onto different facilities. You'd most likely need a history of failure to solve the problem on their part as reason for the reprovision. 7) Just in case - here's a good resource: http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1915.htm HTH > -----Original Message----- > From: Gary Crouch [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, August 28, 2002 12:02 PM > To: [EMAIL PROTECTED] > Subject: CRC frame errors and carrier transitions [7:52225] > > > our WAN connections dies about once a month and we always get > lots of frame > error and carrier transitions > Pac Bell does not have a clue to why this is happening the > have blamed our > Equpment Cisco 3640 with Adtran TSU LS > or timing errors but general have no clue. is there any way > to clean this > connection up and stop the monthly outages > > Thanks > > > MCI-Frame#sh int s0/1 > Serial0/1 is up, line protocol is up > Hardware is QUICC Serial > Description: backport to DI > Internet address is x.x.x.x/30 > MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec, > reliability 255/255, txload 2/255, rxload 7/255 > Encapsulation HDLC, 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 17:02:48 > Input queue: 0/75/0/0 (size/max/drops/flushes); Total > output drops: 10 > Queueing strategy: weighted fair > Output queue: 0/1000/64/0 (size/max total/threshold/drops) > Conversations 0/22/256 (active/max active/max total) > Reserved Conversations 0/0 (allocated/max allocated) > Available Bandwidth 1536 kilobits/sec > 5 minute input rate 59000 bits/sec, 13 packets/sec > 5 minute output rate 17000 bits/sec, 14 packets/sec > 350855 packets input, 175929333 bytes, 0 no buffer > Received 7602 broadcasts, 0 runts, 0 giants, 0 throttles > 37509 input errors, 2081 CRC, 35414 frame, 0 overrun, 0 > ignored, 8 abort > 292361 packets output, 39591690 bytes, 0 underruns > 0 output errors, 0 collisions, 5 interface resets > 0 output buffer failures, 0 output buffers swapped out > 168 carrier transitions > DCD=up DSR=up DTR=up RTS=up CTS=up
Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=52234&t=52225 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
