[j-nsp] PROBLEMS WITH TRAFFIC FORWARDING EX 4200 IN VIRTUAL CHASSIS

[Mario Andres Rueda Jaimes]

Hi mike,

Thanks for your quick response, however my VC environment is running in
pure Layer 2, do you think the effect of restarting the PFE will have the
same effect as your layer 3 environment ?

Thanks

MR

On Fri, Apr 17, 2015 at 12:27 PM, Mike Gonnason <gonnason at gmail.com> wrote:

> You can try restarting the PFE process.
>
> I had to restart/kill the PFE process when I was configuring Filter Based
> Forwarding to send traffic to a new instance. The PFE wouldn't install
> routes into the new instance, even with a config force. This was 2 EX4200
> in a VC under JUNOS 11.4R2.14.
>
> It can help reduce downtime if you can have HA features enabled.
>
>
> root at switch> start shell
>
> root at switch:RE:0% ps -aux | grep pfe
>
> root  1284  1.0  2.3 86804 23388  ??  S     6:57AM   0:53.90 /usr/sbin/pfem
> –N                          <======== 1284 is the process id
> root    16  0.0  0.0     0    16  ??  WL    6:55AM   0:00.00
> [mpfe_drv_taskq16:
> root    44  0.0  0.0     0    16  ??  IL    6:55AM   0:00.00
> [if_pfe_listen]
> root  1305  0.0  1.1 25656 10892  ??  S     6:57AM   0:00.95 /usr/sbin/pfed
> -N
> root  1825  0.0  0.1  2388  1052  p0  S+    7:16AM   0:00.01 grep pfe
>
> root at switch:RE:0% kill -9 1284
>
>                 <======== restart the process
>
>
> Note:- Restarting the pfe would lead to an outage of maximum 30 – 40
> seconds. If GRES, NSB and NSR are enabled the outage will be reduced to
> less than 10 seconds.
>
> root at switch# set routing-options nonstop-routing
>       <--------Enable Nonstop active routing
> root at switch# set ethernet-switching-options nonstop-bridging
> <--------Enable Nonstop active bridging
> root at switch# set chassis redundancy graceful-switchover
> <--------Enable GRES
>
> -Mike Gonnason
>
>
> On Fri, Apr 17, 2015 at 9:20 AM, Mario Andres Rueda Jaimes <
> maeve2009 at gmail.com> wrote:
>
> > Hi All
> >
> >
> > We are having a bizarre issue with a Virtual chassis with 2 ex 4200.
> > running 10.3R3.7
> >
> > Suddenly some of the ports of member 0 stopped forwarding traffic with
> > apparently no reason, no logs, no physical issues, even more mac learning
> > process was functioning normally in the affected ports
> >
> > It looks like a PFE problem but unfortunenlly we can´t open a TT with
> JTAC.
> >
> > Does anybody experienced this kind of issues before ?, we appreciate any
> > input
> >
> >
> > Thanks
> >
> > MR
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