RE: Serial interface error.

So did you mean that the problem may be physically, like an interference or
something like that? Causing all the errors.

Best Regards,

==============================
Mahmoud Nossair

-----Original Message-----
From: GAURAV MADAN [mailto:gauravmadan1177_at_gmail.com]
Sent: Saturday, May 15, 2010 9:08 PM
To: Mahmoud Nossair
Cc: rdarsey_at_gmail.com; ccielab_at_groupstudy.com
Subject: Re: Serial interface error.

Guess .. this is not a clock issue .
This is a V.35 cable .. can go high speeds ( unlike RS232 ) and also
if there is a clocking problem .. it shd have shown clock not recieved
..

DCE is probably configured for 256kbps and DTE is approximately getting that
.

Thnx
Gaurav Madan
CCIE

On Sat, May 15, 2010 at 11:26 PM, Mahmoud Nossair
<mahmoud.nossair_at_gmail.com> wrote:
> Please find the "Show controllers serial 1/3"
>
> M4T: show controller:
> PAS unit 3, subunit 3, f/w version 1-45, rev ID 0x2800001, version 3
> idb = 0x6256E6E4, ds = 0x625704EC, ssb=0x625708A0
> Clock mux=0x0, ucmd_ctrl=0xC, port_status=0x74
> Serial config=0x8, line config=0x200
> maxdgram=1608, bufpool=78Kb, 120 particles
> DCD=up DSR=up DTR=up RTS=up CTS=up
> line state: up
> cable type : V.35 DTE cable, received clockrate 255840
>
> base0 registers=0x3D000000, base1 registers=0x3D002000
> mxt_ds=0x626EF858, rx ring entries=78, tx ring entries=128
> rxring=0x3B6CE20, rxr shadow=0x62576E94, rx_head=0
> txring=0x3B6D0C0, txr shadow=0x62577268, tx_head=34, tx_tail=34,
tx_count=0
> throttled=0, enabled=0
> halted=0, last halt reason=0
> Microcode fatal errors=0
> rx_no_eop_err=0, rx_no_stp_err=0, rx_no_eop_stp_err=0
> rx_no_buf=0, rx_soft_overrun_err=0, dump_err= 0, bogus=0, mxt_flags=0x0
> tx_underrun_err=1, tx_soft_underrun_err=1, tx_limited=1(2)
> tx_fullring=13147591, tx_started=17925099 mxt_flush_count=0
> rx_int_count=34348762, tx_int_count=31081383
>
> Best Regards,
>
> ==============================
> Mahmoud Nossair
>
>
>
> -----Original Message-----
> From: rdarsey_at_gmail.com [mailto:rdarsey_at_gmail.com]
> Sent: Saturday, May 15, 2010 8:49 PM
> To: Mahmoud Nossair; ccielab_at_groupstudy.com
> Subject: Re: Serial interface error.
>
> What does a "show controllers" show? Any slips? If so clocking may be an
> issue. Verify that clock is either provided by the ISP or in the case of
a
> point to point circuit that one side is set to clock source internal and
one
> is set to clock source line.
>
> Rick
> -----Original Message-----
> From: "Mahmoud Nossair" <mahmoud.nossair_at_gmail.com>
> Date: Sat, 15 May 2010 19:24:31
> To: <ccielab_at_groupstudy.com>
> Subject: Serial interface error.
>
> Dear Experts
>
> We have some branches connecting to the Head Quarter through a telecom
> company, when I running "show interface serial 1/3" I found there are many
> errors,
>
> I know that there is an errors on the fastethetnet interfaces happens from
> collisions duplex mismatch, but I am wondering what is the kind of the
> errors will be occurred on the serial interfaces .
>
> There is one thing also , we never reach the maximum bandwidth, although
we
> are suffering from a congestion.
>
>
>
> Here is show interface output:
>
>
>
> ======================================
>
> Serial1/3 is up, line protocol is up
>
> Hardware is M4T
>
> Internet address is x.x.x.x/30
>
> MTU 1500 bytes, BW 2000 Kbit, DLY 20000 usec,
>
> reliability 255/255, txload 21/255, rxload 16/255
>
> Encapsulation HDLC, crc 16, loopback not set
>
> Keepalive set (10 sec)
>
> Restart-Delay is 0 secs
>
> Last input 00:00:00, output 00:00:00, output hang never
>
> Last clearing of "show interface" counters never
>
> Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
> 1154031
>
> Queueing strategy: weighted fair
>
> Output queue: 0/1000/64/1154031 (size/max total/threshold/drops)
>
> Conversations 0/36/256 (active/max active/max total)
>
> Reserved Conversations 0/0 (allocated/max allocated)
>
> Available Bandwidth 1900 kilobits/sec
>
> 30 second input rate 133000 bits/sec, 245 packets/sec
>
> 30 second output rate 165000 bits/sec, 134 packets/sec
>
> 31407760 packets input, 2687152838 bytes, 0 no buffer
>
> Received 41308 broadcasts, 0 runts, 0 giants, 0 throttles
>
> 27636 input errors, 27635 CRC, 0 frame, 1 overrun, 0 ignored, 0 abort
>
> 16397297 packets output, 3885690293 bytes, 1 underruns
>
> 1 output errors, 0 collisions, 3 interface resets
>
> 0 output buffer failures, 0 output buffers swapped out
>
> 4 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up
>
> ==============================================================
>
>
>
> Please any help regarding this issue.
>
> Thanks in advance.
>
>
>
> Best Regards,
>
> Mahmoud Nossair
>
>
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Received on Sat May 15 2010 - 21:21:19 ART