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

Marko Milivojevic markom at pangalactic.net
Thu Jun 29 12:17:37 EDT 2006


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
>      >      >      > _______________________________________________
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