[c-nsp] T-1 errors, unable to pinpoint if CSU or circuit issue
Lee Starnes
lee.t.starnes at gmail.com
Wed May 8 01:23:13 EDT 2013
Hello,
>From looking at your output and based on you replacing your cables I
suspect you are seeing issues that the carrier is not seeing from their
basic remote tests or circuit monitoring. We have seen this many times. Ask
for them to pull PMs on the circuit. If this is a CLEC circuit, have them
pull the ILEC PMs. depending on the circuit and how far from the CO you
are, you may be seeing issues with the repeater (if in use) and their
normal tests typically will not show any issues. In some cases, the LEC
will need to dispatch out to the site to pull PMs which may take them a day
to get out to you.
Let us know what they come back with.
-Lee
On Tue, May 7, 2013 at 8:53 AM, false <jctx09 at yahoo.com> wrote:
> Hello,
>
> Let me just first say "Thank you" to everybody that has helped in my
> previous post. This list is awesome.
>
> AS for the curren problem, I keep getting voip issues, including the
> occasional phone call drop. I have a dedicated T-1 or voip traffic and
> minor site-to-site vpn traffic with a QoS policy applied to handle voice
> traffic. These problems have occured even when I took the vpn offline. The
> telco provider always states the line is clean. I replaced the cable from
> the smartjack to the CSU in the router as well. I have only gotten a few
> errors over the past week so the issue looks to be brief and intermittent.
> The logs in the router never show any issues with CSU.
>
> 1) any idea on verify the CSU is causing the Line Errors below?
> 2) Any ideas on the cause or how to isolate the issue?
>
> I will probalby turn on debug for the interface in hopes of getting time
> stamps for the interface resets so I can tie them to any voip issues.
>
> #sho service-module serial 0/1/0
> Interface Serial0/1/0
> Module type is T1/fractional
> Hardware revision is 1.0, Software revision is 001,
> Image checksum is 0x0, Protocol revision is 0.1
> Receiver has no alarms.
> Framing is ESF, Line Code is B8ZS, Current clock source is line,
> Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536
> Kbits/sec.
> Last module self-test (done at startup): Passed
> Last clearing of alarm counters 3d01h
> loss of signal : 0,
> loss of frame : 0,
> AIS alarm : 0,
> Remote alarm : 0,
> Module access errors : 0,
> Total Data (last 0 15 minute intervals):
> 0 Line Code Violations, 0 Path Code Violations
> 0 Slip Secs, 0 Fr Loss Secs, 37 Line Err Secs, 0 Degraded Mins
> 4 Errored Secs, 0 Bursty Err Secs, 14 Severely Err Secs, 20 Unavail
> Secs
> Data in current interval (0 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
>
>
> sh int s0/1/0
> Serial0/1/0 is up, line protocol is up
> Hardware is GT96K with integrated T1 CSU/DSU
> Internet address is x.x.x./30
> MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
> reliability 255/255, txload 4/255, rxload 5/255
> Encapsulation PPP, LCP Open
> Listen: CDPCP
> Open: IPCP, loopback not set
> Keepalive set (10 sec)
> Last input 00:00:01, output 00:00:00, output hang never
> Last clearing of "show interface" counters 3d01h
> Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 557
> Queueing strategy: Class-based queueing
> Output queue: 0/1000/0 (size/max total/drops)
> 5 minute input rate 35000 bits/sec, 10 packets/sec
> 5 minute output rate 28000 bits/sec, 7 packets/sec
> 3132198 packets input, 1283936661 bytes, 0 no buffer
> Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
> 289 input errors, 289 CRC, 39 frame, 3 overrun, 0 ignored, 67 abort
> 2561565 packets output, 793225489 bytes, 0 underruns
> 0 output errors, 0 collisions, 2 interface resets
> 0 unknown protocol drops
> 6 unknown protocol drops
> 0 output buffer failures, 0 output buffers swapped out
> 0 carrier transitions
> DCD=up DSR=up DTR=up RTS=up CTS=up
>
> show controllers s0/1/0
>
> 67 input aborts on receiving flag sequence
> 0 throttles, 0 enables
> 3 overruns
> 0 transmitter underruns
> 0 transmitter CTS losts
> 3122313 rxintr, 2544022 txintr, 0 rxerr, 0 txerr
> 5517559 mpsc_rx, 0 mpsc_rxerr, 66 mpsc_rlsc, 524 mpsc_rhnt, 5517442
> mpsc_rfsc
> 5 mpsc_rcsc, 0 mpsc_rovr, 0 mpsc_rcdl, 0 mpsc_rckg, 0 mpsc_bper
> 0 mpsc_txerr, 1882006 mpsc_teidl, 0 mpsc_tudr, 0 mpsc_tctsl, 0 mpsc_tckg
> 0 sdma_rx_sf, 0 sdma_rx_mfl, 3 sdma_rx_or, 67 sdma_rx_abr, 39 sdma_rx_no
> 0 sdma_rx_de, 0 sdma_rx_cdl, 289 sdma_rx_ce, 0 sdma_tx_rl, 0 sdma_tx_ur, 0
> sdma_tx_ctsl
> 0 sdma_rx_reserr, 0 sdma_tx_reserr
> 0 rx_bogus_pkts, rx_bogus_flag FALSE
> 0 sdma_tx_ur_processed
>
> tx_limited = 1(2), errata19 count1 - 0, count2 - 0
> Receive Ring
> rxr head (21)(0x0F06E930), rxr tail (0)(0x0F06E7E0)
> rmd(F06E7E0): nbd F06E7F0 cmd_sts 80800000 buf_sz 06000000 buf_ptr
> F07D1E0
> rmd(F06E7F0): nbd F06E800 cmd_sts 80800000 buf_sz 06000000 buf_ptr
> F073F40
> rmd(F06E800): nbd F06E810 cmd_sts 80800000 buf_sz 06000000 buf_ptr
> F073F40
> rmd(F06E810): nbd F06E820 cmd_sts 8
>
> sh inventory
> NAME: "chassis", DESCR: "2801 chassis"
> PID: CISCO2801 , VID: V05, SN: FTX1046Z0J0
>
> NAME: "WIC/VIC/HWIC 1", DESCR: "WAN Interface Card - HWIC CSU/DSU"
> PID: HWIC-1DSU-T1 , VID: V01 , SN: FOC143315FZ
>
> NAME: "WIC/VIC/HWIC 3", DESCR: "9 Port FE Switch"
> PID: HWIC-D-9ESW , VID: VN/A, SN: FOC09423UG8
>
> NAME: "WIC/VIC/HWIC 3 Power Daughter Card", DESCR: "9-Port HWIC-ESW Power
> Daughter Card"
> PID: ILPM-8 , VID: VN/A, SN: FOC09423075
>
> NAME: "PVDM 0", DESCR: "PVDMII DSP SIMM with one DSP with half channel
> capcity"
> PID: PVDM2-8 , VID: NA , SN: FOC09351ATH
>
> NAME: "PVDM 1", DESCR: "PVDMII DSP SIMM with one DSP with half channel
> capcity"
> PID: PVDM2-8 , VID: NA , SN: FOC09471S4U
>
> NAME: "AIM Service Engine 0", DESCR: "AIM Service Engine"
> PID: AIM-CUE , VID: V01 , SN: FOC09413PG2
>
>
> Thank you,
> _______________________________________________
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