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Re: (ASCEND) mail attachment problem
We have a pair of Adtran 56/64 DSU/CSU terminating the 65K line. Both are
set to 1500 MTU. I'm not sure about upstream provider's equipment, but from
the failing Max we're going over the 56K line, through a Cisco 2501 router,
over the LAN to the 2nd Max (the one that users can send the attachment
through), and then out the serial line through a T1 CSU and out to the
upstream. It seems to me the connection to our upstream provider must be OK,
since the 2nd Max works.
The Cisco MTU is set to 1500 (see below) and the errors look reasonably low.
Jerry
Serial0 is up, line protocol is up
Hardware is HD64570
Internet address is 192.168.1.1/30
MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec, rely 255/255, load 22/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)
LCP Open
Listen: cdp
Open: ipcp
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 15594 drops; input queue 0/75, 0 drops
5 minute input rate 1000 bits/sec, 2 packets/sec
5 minute output rate 5000 bits/sec, 2 packets/sec
4846542 packets input, 410033079 bytes, 0 no buffer
Received 2 broadcasts, 0 runts, 0 giants
1704 input errors, 1704 CRC, 0 frame, 0 overrun, 0 ignored, 1619 abort
5324957 packets output, 2416421820 bytes, 0 underruns
0 output errors, 0 collisions, 57 interface resets
0 output buffer failures, 0 output buffers swapped out
45283 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
----- Original Message -----
From: KY Lee <kylee@tm.net.my>
To: Jerry O'Brien <jobrien@cuttingedge.net>; ## Dusty Carden
<dusty@netease.net>; <ascend-users@bungi.com>
Sent: Saturday, May 08, 1999 11:56 PM
Subject: Re: (ASCEND) mail attachment problem
> Hi ,
>
> This could be the MTU size misconfiguration for the PPP. I wonder what
> equipment do you use to connect to your upstream service Provider and also
> terminating equipment used by your service provider?. Besides that what
> type of equipment are u connecting your 56K leased line to the LAN.. ?
More
> details will enable me to rule out whether it is MTU/MRU problems. ..
> Cheerios .
>
> At 09:05 06-05-99 -0500, Jerry O'Brien wrote:
> >Thanks Dusty,
> >
> >Most of the folks who are having trouble here are using very recent Win98
> >boxes, so I doubt whether their DUN or winsock are old. I forgot to
mention
> >I am running 6.1.7 on both maxen. The one that works sits on our central
LAN
> >and connects via T1 to our upstream provider. The failing unit connects
to
> >the LAN via 56K leased line. No other problems with the failing unit,
just
> >this attachment thing.
> >
> >Jerry
> >
> >
> >----- Original Message -----
> >From: ## Dusty Carden <dusty@netease.net>
> >To: Jerry O'Brien <jobrien@cuttingedge.net>
> >Sent: Thursday, May 06, 1999 8:06 AM
> >Subject: Re: (ASCEND) mail attachment problem
> >
> >
> >> I had this with a couple of WIN95 clients. Upgrading their winsock
> >> and dial up networking fixed it. This was through a MAX 6. They could
> >> dial in to the 4004 in the same rack and have no problems. Both boxes
> >> are running 6.1.7. I was surprised that upgrading their winsock fixed
the
> >> problem and I am still not sure what the deal was.
> >>
> >> Dusty
> >>
> >> ----- Original Message -----
> >> From: Jerry O'Brien <jobrien@cuttingedge.net>
> >> To: <ascend-users@bungi.com>
> >> Sent: Wednesday, May 05, 1999 11:23 PM
> >> Subject: (ASCEND) mail attachment problem
> >>
> >>
> >> Hi,
> >>
> >> I'm out of ideas here...
> >>
> >> I have a group of users who can't send email attachments through one of
my
> >> Max 4048s. Another identical box at a different site works fine, so I'm
> >> ruling out customer equipment and DNS. Anyone know of anything in the
4K
> >> configuration that could cause this? It happens to files as small as
40K,
> >so
> >> I don't think it's a size problem. My mail log (Linux, sendmail 8.?)
says
> >> the server is waiting to receive mail data, but then times out after
two
> >> hours. I think the clients are giving up and closing sooner, but the
mail
> >> server always waits for the timeout.
> >>
> >> TIA
> >>
> >> Jerry O'Brien
> >>
> >>
> >> ++ Ascend Users Mailing List ++
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> >> To get FAQ'd: <http://www.nealis.net/ascend/faq>
> >>
> >>
> >>
> >
> >
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> >
>
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> KY Lee
> Network Development Engineer, !networX
> !nternet Services, COINS
> TELEKOM MALAYSIA BERHAD [128740-P]
> Fax : +60 -(0)3 - 7042204
> http://www.tm.net.my
>
> Time Zone : GMT+ 8
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>
>
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