[Xorp-hackers] XORP Testing

[Pavlin Radoslavov]

> The system freezes when I try to pick up the default-system-config in
> any case ie either through the config file or when I commit the
> changes using xorpsh.
> When any XORP process is starting, there is no freeze but I do receive
> a few warnings.
> 
> Here is a list of the processes that were running before the freeze occured:-
> 
>   PID  Uid     VmSize Stat Command
>     1 root       1160 S   /bin/bash
>     2 root            SWN [ksoftirqd/0]
>     3 root            SW  [watchdog/0]
>     4 root            SW< [events/0]
>     5 root            SW< [khelper]
>     6 root            SW< [kthread]
>    10 root            SW< [kblockd/0]
>    31 root            SW  [pdflush]
>    32 root            SW  [pdflush]
>    34 root            SW< [aio/0]
>    33 root            SW  [kswapd0]
>   104 root            SW< [kseriod]
>   133 root            SW< [rpciod/0]
>   135 root       1104 S   sh
>   140 root        428 S   /usr/sbin/telnetd
>   141 root       1080 S   -sh
>   142 root       1072 S   -sh
>   183 root        924 S   /sbin/syslogd -n
>   193 root       1016 S   -sh
>   196 root       9760 S   ./xorp_rtrmgr -- -v
>   197 root        808 S   tail -f /var/log/messages
>   200 root       5308 S   /usr/local/xorp/bin/xorpsh
>   201 root       7244 S   xorp_fea
>   212 root       5200 S   xorp_rib
>   213 root       3136 S   xorp_policy
>   214 root       4232 S   xorp_static_routes
>   215 root       2892 S   xorp_rl_interfaces
>   243 root        984 S   -sh
>   248 root       2924 S   xorp_rl_system
> 
> I am using a slow system [400Mhz] and the mounted root volume is on
> nfs, through eth0 , and have specified default-system-config for eth0
> and the problem doesnt go away.
> What do you think is the problem?

Are you running vanilla XORP or Vyatta's distribution?
Processes like xorp_rl_interfaces and xorp_rl_system and Vyatta
add-ons.

Can you try running vanilla XORP and see whether you have same
problem. Also, please provide more details about the problem like:
* What is your startup configuration.
* The exact actions you take to trigger the problem (e.g., the exact
  xorpsh commands, when exactly you run telnet, etc).
* Do you see the problem if your XORP configuration contains only the
  "interfaces" block.

Regards,
Pavlin

> 
> On 12/19/06, Pavlin Radoslavov <pavlin at icir.org> wrote:
> > > I have made no changes with eth0. I just tell it to pick up the
> > > default-system-config. Even then the same problem occurs. There are no
> > > routes defined in my configuration file. There is only a defination of
> > > eth0 which is supposed to pick up the default-system-config.
> >
> > Interesting.
> > When exactly do you see the freeze and how long time does it take
> > for it to go away (if it ever goes away)?
> > E.g., do you see it when the XORP processes are starting?
> > If yes, do you see it if you have an empty "interfaces" section or
> > even an empty configuration file.
> > I am trying to find whether just starting the XORP processes (or any
> > large processes) themselves triggers the freeze.
> >
> > Pavlin
> >
> > > On 12/18/06, Pavlin Radoslavov <pavlin at icir.org> wrote:
> > > > > Here is my test environment. My XORP router is running on a slow
> > > > > machine whose root volume is mounted via nfs on eth0. I telnet into
> > > > > the XORP router and perform all configurations. Whenever I try to
> > > > > anything with eth0, the telnet sessions just freeze up. The telnet
> > > > > sessions are also coming through eth0. I would like to know if this is
> > > > > normal for the telnet sessions to freeze or is there something wrong
> > > > > with my setup or anything else?
> > > >
> > > > What kind of changes do you do with eth0?
> > > > Obviously, if you change the IP address or take the interface down,
> > > > this will affect all network traffic via eth0 (including telnet and
> > > > NFS).
> > > > Also, note that other operations like changing the MTU or the MAC
> > > > address will trigger (internally in the FEA) taking the interface
> > > > down, performing the change and then setting it up again.
> > > > Also, have in mind that if there are NFS issues, the interactive
> > > > sessions might also be affected.
> > > >
> > > > Regards,
> > > > Pavlin
> > > >
> > >
> > > _______________________________________________
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> > > Xorp-hackers at icir.org
> > > http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/xorp-hackers
> >
> 
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