[c-nsp] atm0 going down every five minutes (DSL: Defect: LOS LOF LCDi: retraining)

Elmar Pigeaud pigeaud at gmail.com
Fri Jun 30 06:07:09 EDT 2006


At the moment I have done it the 'oldfashioned' way. I put 50 meters
of UTP in between, and at the moment I have been online for about 30
minutes!

So, the short line seems to have been the problem!

Thanks for all the help!

On 6/30/06, Tassos Chatzithomaoglou <achatz at forthnet.gr> wrote:
> Maybe use an attenuator?
>
> I had a problem with a cisco 827 router not connecting at all with a dslam, because it was too near.
> After putting an attenuator in front of it, the connection worked fine.
>
> --
> Tassos
>
> Elmar Pigeaud wrote on 30/6/2006 11:56 πμ:
> > I just got off the phone with the provider. This time I got another
> > (more helpful) guy.
> >
> > - The length of the line is 62m
> > - Still, they never heard of SELT
> >
> > They told me that every line less than a hundred meters could give a
> > problem like mine. Ever heard of that?
> >
> > Thanks,
> >
> > Pjn
> >
> > On 6/29/06, Elmar Pigeaud <pigeaud at gmail.com> wrote:
> >> That's a pity. Will call the provider tomorrow.
> >>
> >> Thanks,
> >>
> >> Pjn
> >>
> >> On 6/29/06, Kristofer Sigurdsson <kristosig at gmail.com> wrote:
> >>> Probably not - I was setting up an 878 the other day, that has it.  I
> >>> also seem to remember it from 838 and even 828.  Those are all G.SHDSL
> >>> routers, admittingly, as opposed to ADSL.
> >>>
> >>> -Kristo
> >>>
> >>> 2006/6/29, Marko Milivojevic <markom at pangalactic.net>:
> >>>> Not on all platforms, for sure. :-)
> >>>>
> >>>> Kristofer Sigurdsson wrote:
> >>>>> I believe you can adjust the speed from your end with dsl line-rate ...
> >>>>>
> >>>>> -Kristo
> >>>>>
> >>>>> 2006/6/29, Elmar Pigeaud <pigeaud at gmail.com>:
> >>>>>> Nope, that's the problem. Could it be the firmware? I don't know,
> >>>>>> however,
> >>>>>> how to get it.
> >>>>>>
> >>>>>>
> >>>>>> On 6/29/06, Marko Milivojevic <markom at pangalactic.net> wrote:
> >>>>>>>
> >>>>>>> You don't have another Cisco to try out?
> >>>>>>>
> >>>>>>> Elmar Pigeaud wrote:
> >>>>>>>> Hm... too late to ask them now. Workday's been over for aaaages
> >>>>>> (6:15)
> >>>>>>> ;-)
> >>>>>>>> Can you think of anything else?
> >>>>>>>>
> >>>>>>>> Thanks, however.
> >>>>>>>>
> >>>>>>>> On 6/29/06, *Marko Milivojevic * <markom at pangalactic.net
> >>>>>>>> <mailto:markom at pangalactic.net>> wrote:
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>     I believe that you can't set it from your side (I could be
> >>>>>> wrong, I
> >>>>>>>>     don't
> >>>>>>>>     have any routers now that I can play with), but you could ask
> >>>>>>> service
> >>>>>>>>     provider to lower it. 8 Mb/s downstream may not be the real
> >>>>>> problem,
> >>>>>>> it
> >>>>>>>>     could be related to the upstream speed. 4M/512K should work
> >>>>>> for up
> >>>>>>>>     to 3 km
> >>>>>>>>     over sewer pipes ;-)
> >>>>>>>>
> >>>>>>>>     Elmar Pigeaud wrote:
> >>>>>>>>      > Sorry for asking, but how can I lower the speed?
> >>>>>>>>      >
> >>>>>>>>      > Thanks!
> >>>>>>>>      >
> >>>>>>>>      > On 6/29/06, *Marko Milivojevic* <markom at pangalactic.net
> >>>>>>>>     <mailto:markom at pangalactic.net>
> >>>>>>>>      > <mailto:markom at pangalactic.net
> >>>>>> <mailto:markom at pangalactic.net>>>
> >>>>>>>>     wrote:
> >>>>>>>>      >
> >>>>>>>>      >
> >>>>>>>>      >     Try lowering the speed. I had problems with some 827's
> >>>>>> at 8
> >>>>>>> Mb/s
> >>>>>>>>      >     even with
> >>>>>>>>      >     rather short lines (~300m).
> >>>>>>>>      >
> >>>>>>>>      >     Elmar Pigeaud wrote:
> >>>>>>>>      >      > Called them, they tested the line: no problem (they
> >>>>>> never
> >>>>>>>>     heard
> >>>>>>>>      >     of SELT
> >>>>>>>>      >      > however). Other modems have no problem whatsoever
> >>>>>> (can't
> >>>>>>>>     try another
> >>>>>>>>      >      > cisco...). The line should be very short, because it is
> >>>>>>>>     connected
> >>>>>>>>      >     in our
> >>>>>>>>      >      > own street and I get the full 8mbit.
> >>>>>>>>      >      >
> >>>>>>>>      >      > I can try to have them test the line more than they did
> >>>>>>>>     now, but as
> >>>>>>>>      >      > other modems have no problem on the same line, I don't
> >>>>>>>>     think the
> >>>>>>>>      >      > solution will be there.
> >>>>>>>>      >      >
> >>>>>>>>      >      > Any other suggestions?
> >>>>>>>>      >      >
> >>>>>>>>      >      > On 6/29/06, *Marko Milivojevic* <markom at pangalactic.net
> >>>>>>>>     <mailto:markom at pangalactic.net>
> >>>>>>>>      >     <mailto: markom at pangalactic.net <mailto:
> >>>>>>> markom at pangalactic.net>>
> >>>>>>>>      >      > <mailto:markom at pangalactic.net
> >>>>>>>>     <mailto:markom at pangalactic.net> <mailto:markom at pangalactic.net
> >>>>>>>>     <mailto:markom at pangalactic.net>>>>
> >>>>>>>>      >     wrote:
> >>>>>>>>      >      >
> >>>>>>>>      >      >
> >>>>>>>>      >      >     How long is the line? Can you ask the operator to
> >>>>>>>>     perform SELT on
> >>>>>>>>      >      >     the line?
> >>>>>>>>      >      >
> >>>>>>>>      >      >     Elmar Pigeaud wrote:
> >>>>>>>>      >      >      > Sorry to re-submit the question, however, I got
> >>>>>>>>     somewhat
> >>>>>>>>      >     further.
> >>>>>>>>      >      >     Our c836
> >>>>>>>>      >      >      > router loses connection every five minutes. The
> >>>>>>>>     line is
> >>>>>>>>      >     ok, other
> >>>>>>>>      >      >     modems
> >>>>>>>>      >      >      > work fine. Our provider can see no problem. Can
> >>>>>>>>     this have
> >>>>>>>>      >      >     something to do
> >>>>>>>>      >      >      > with my config? At the moment it is still very
> >>>>>>>>     simple, and
> >>>>>>>>      >     I have
> >>>>>>>>      >      >     never
> >>>>>>>>      >      >      > encountered a similar problem with the same
> >>>>>>> provider.
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > Has anyone ever seen a similar problem?
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > Thanks in advance!
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > Pjn
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > The log:
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > Jun 29 14:33:51.750: DSL: Defect: LOS LOF LCDi:
> >>>>>>>>     retraining
> >>>>>>>>      >      >      > Jun 29 14:33:51.750: DSL: Received response:
> >>>>>> 0x41
> >>>>>>>>      >      >      > Jun 29 14:33:52.710:
> >>>>>>>>     c820_atm_check_linkstate_periodic:
> >>>>>>>>      >     PHY line
> >>>>>>>>      >      >     is going
> >>>>>>>>      >      >      > down
> >>>>>>>>      >      >      > Jun 29 14:33: 52.710:   Shutting down ATM0...
> >>>>>>>>      >      >      > Jun 29 14:33:52.710: ATM0 c820_atm_shutdown:
> >>>>>>> state=0
> >>>>>>>>      >      >      > Jun 29 14:33:52.710: pquicc_sar_stop...
> >>>>>>>>      >      >      > Jun 29 14:33:52.710:   c820_atm_stop_receive...
> >>>>>>>>      >      >      > Jun 29 14:33:52.966:   pquicc_sar_rx_disable...
> >>>>>>>>      >      >      > Jun 29 14:33:52.966:   Disable TX Cav ....
> >>>>>>>>      >      >      > Jun 29 14:33:52.966:   Disable RX Cav ....
> >>>>>>>>      >      >      > Jun 29 14:33:52.966 :   Disable PD[15] and
> >>>>>> PD[14]
> >>>>>>> ....
> >>>>>>>>      >      >      > Jun 29 14:33:52.970: c820_reset_vc: conid = 0
> >>>>>>>>      >      >      > Jun 29 14:33:52.970: c820_reset_vc: conid = 3
> >>>>>>>>      >      >      > Jun 29 14:33:52.970: Resetting ATM0
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > Firmware info:
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > Cisco IOS Software, C836 Software
> >>>>>> (C836-K9O3Y6-M),
> >>>>>>>>     Version
> >>>>>>>>      >      >     12.3(8)T11,
> >>>>>>>>      >      >      > RELEASE S
> >>>>>>>>      >      >      > OFTWARE (fc1)
> >>>>>>>>      >      >      > Technical Support:
> >>>>>> http://www.cisco.com/techsupport
> >>>>>>>>      >      >      > Copyright (c) 1986-2005 by Cisco Systems, Inc.
> >>>>>>>>      >      >      > Compiled Wed 10-Aug-05 20:25 by dchih
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > ROM: System Bootstrap, Version 12.2(11r)YV3,
> >>>>>>> RELEASE
> >>>>>>>>      >     SOFTWARE (fc2)
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > gw2 uptime is 2 hours, 52 minutes
> >>>>>>>>      >      >      > System returned to ROM by power-on
> >>>>>>>>      >      >      > System restarted at 11:48:51 UTC Thu Jun 29 2006
> >>>>>>>>      >      >      > System image file is "flash:
> >>>>>>>>     c836-k9o3y6-mz.123-8.T11.bin"
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > Running config:
> >>>>>>>>      >      >      >
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > ! Last configuration change at 13:07:35 UTC
> >>>>>> Thu Jun
> >>>>>>> 29
> >>>>>>>>      >     2006 by admin
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > version 12.3
> >>>>>>>>      >      >      > no service pad
> >>>>>>>>      >      >      > service timestamps debug datetime msec
> >>>>>>>>      >      >      > service timestamps log datetime msec
> >>>>>>>>      >      >      > no service password-encryption
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > hostname c836
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > boot-start-marker
> >>>>>>>>      >      >      > boot-end-marker
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > logging buffered 10000 debugging
> >>>>>>>>      >      >      > no logging console
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > no aaa new-model
> >>>>>>>>      >      >      > ip subnet-zero
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > ip ips po max-events 100
> >>>>>>>>      >      >      > no ftp-server write-enable
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > username admin privilege 15 secret 5 <pw>
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > bridge irb
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > interface Ethernet0
> >>>>>>>>      >      >      >  description
> >>>>>>>>     $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-Ethernet
> >>>>>>>>      >     10/100$
> >>>>>>>>      >      >      >  ip address 192.168.20.1 <http://192.168.20.1>
> >>>>>>>>     <http://192.168.20.1>
> >>>>>>>>      >     <http://192.168.20.1> 255.255.255.0
> >>>>>> <http://255.255.255.0> <
> >>>>>>>>     http://255.255.255.0>
> >>>>>>>>      >      >     <http://255.255.255.0>
> >>>>>>>>      >      >      >  ip nat inside
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > interface BRI0
> >>>>>>>>      >      >      >  no ip address
> >>>>>>>>      >      >      >  shutdown
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > interface ATM0
> >>>>>>>>      >      >      >  no ip address
> >>>>>>>>      >      >      >  no ip route-cache
> >>>>>>>>      >      >      >  no ip mroute-cache
> >>>>>>>>      >      >      >  no atm ilmi-keepalive
> >>>>>>>>      >      >      >  dsl operating-mode auto
> >>>>>>>>      >      >      >  dsl enable-training-log
> >>>>>>>>      >      >      >  bridge-group 1
> >>>>>>>>      >      >      >  bridge-group 1 spanning-disabled
> >>>>>>>>      >      >      >  pvc auto 0/34
> >>>>>>>>      >      >      >   encapsulation aal5snap
> >>>>>>>>      >      >      >  !
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > interface FastEthernet1
> >>>>>>>>      >      >      >  no ip address
> >>>>>>>>      >      >      >  duplex auto
> >>>>>>>>      >      >      >  speed auto
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > interface FastEthernet2
> >>>>>>>>      >      >      >  no ip address
> >>>>>>>>      >      >      >  duplex auto
> >>>>>>>>      >      >      >  speed auto
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > interface FastEthernet3
> >>>>>>>>      >      >      >  no ip address
> >>>>>>>>      >      >      >  duplex auto
> >>>>>>>>      >      >      >  speed auto
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > interface FastEthernet4
> >>>>>>>>      >      >      >  no ip address
> >>>>>>>>      >      >      >  duplex auto
> >>>>>>>>      >      >      >  speed auto
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > interface BVI1
> >>>>>>>>      >      >      >  mac-address 000f.fe1e.f0a5
> >>>>>>>>      >      >      >  ip address dhcp
> >>>>>>>>      >      >      >  ip nat outside
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > ip classless
> >>>>>>>>      >      >      > ip route 0.0.0.0 <http://0.0.0.0>
> >>>>>> <http://0.0.0.0>
> >>>>>>>>     < http://0.0.0.0> 0.0.0.0 <http://0.0.0.0>
> >>>>>>>>      >     <http://0.0.0.0> <http://0.0.0.0> BVI1
> >>>>>>>>      >      >      > no ip http server
> >>>>>>>>      >      >      > ip nat inside source list 1 interface BVI1
> >>>>>> overload
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > access-list 1 permit 192.0.0.0
> >>>>>> <http://192.0.0.0>
> >>>>>>>>     <http://192.0.0.0>
> >>>>>>>>      >     <http://192.0.0.0> 0.255.255.255 <http://0.255.255.255>
> >>>>>>>>     <http://0.255.255.255 <http://0.255.255.255>>
> >>>>>>>>      >      >     <http://0.255.255.255>
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > control-plane
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > bridge 1 protocol ieee
> >>>>>>>>      >      >      > bridge 1 route ip
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > line con 0
> >>>>>>>>      >      >      >  login local
> >>>>>>>>      >      >      >  no modem enable
> >>>>>>>>      >      >      > line aux 0
> >>>>>>>>      >      >      > line vty 0 4
> >>>>>>>>      >      >      >  privilege level 15
> >>>>>>>>      >      >      >  login local
> >>>>>>>>      >      >      >  transport input telnet ssh
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > scheduler max-task-time 5000
> >>>>>>>>      >      >      > !
> >>>>>>>>      >      >      > end
> >>>>>>>>      >      >      > _______________________________________________
> >>>>>>>>      >      >      > cisco-nsp mailing list
> >>>>>> cisco-nsp at puck.nether.net
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> >>>>>>>>      >     < https://puck.nether.net/mailman/listinfo/cisco-nsp>>
> >>>>>>>>      >      >      > archive at
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> >>>>>>>>      >      >      >
> >>>>>>>>      >      >
> >>>>>>>>      >      >
> >>>>>>>>      >
> >>>>>>>>      >
> >>>>>>>>
> >>>>>>>>
> >>>>>> _______________________________________________
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