[j-nsp] PFE problems
Carl Hayter
hayter at usc.edu
Fri Dec 3 16:20:52 EST 2004
Jonas,
Did you ever get any resolution on this issue? We have been having
similar issues on our M20.
----
Carl Hayter
ISD - Data Network Operations
University of Southern California
On Fri, Nov 26, 2004 at 05:17:07PM +0100, Josef Buchsteiner wrote:
> Jonas,
>
> this is jtree memory which is not the one which is complaining.
> Please issue 'show chassis ssb' and look for the heap
> utilization. It is the DRAM on the forwarding engine which is
> reporting this message.
>
> The "resolutions from iif 85 throttled" means you get too may
> request from interface index 85 going out on Ethernet where we
> have no next-hop/arp entry and we need to try to resolve this
> and if we don't get an answer back and too many requests are
> outstanding we will throttle this down. You can look at the
> forwarding table which next-hop is in hold state then you know
> where the traffic is supposed to get send and not getting an
> answer back and you can look what is going on with the
> arp-request/reply. You also know where the traffic is coming in
> via index 85.
>
> hope this helps
> Josef
>
> Wednesday, November 24, 2004, 10:26:29 AM, you wrote:
>
>
> JF> Hi,
>
> JF> i did that and the memory utilisation is fine:
>
> JF> SSB0(ffm2-edge vty)# show jtree 0 memory
> JF> Memory Statistics:
> JF> 8388608 bytes total (4 banks)
> JF> 2694504 bytes used
> JF> 5694104 bytes free
> JF> 8128 pages total
> JF> 2611 pages used
> JF> 5517 pages free
> JF> 31 max freelist size
>
> JF> Free Blocks:
> JF> Size(b) Total(b) Free TFree Alloc
> JF> -------- ---------- ---------- ---------- ----------
> JF> 8 1689296 90 0 211072
> JF> 16 541600 5 0 33845
> JF> 24 1608 0 0 67
> JF> 32 288 0 0 9
> JF> 40 0 0 0 0
> JF> 48 0 0 0 0
> JF> 56 0 0 0 0
> JF> 64 195456 1 1 3052
> JF> 72 0 0 0 0
> JF> 80 0 0 0 0
> JF> 88 0 0 0 0
> JF> 96 0 0 0 0
> JF> 104 0 0 0 0
> JF> Total 2428248
>
> JF> Context: 0x3e0b14
>
> JF> I am not sure about the blocks usage here however, since there seem no
> JF> free ones?
>
> JF> I am also getting some errors/warnings from the SSB itself:
> JF> [Nov 24 09:24:37.412 LOG: Info] NH: resolutions from iif 85 throttled
> JF> [Nov 24 09:25:11.577 LOG: Info] NH: resolutions from iif 85 throttled
>
> JF> SSB0(ffm2-edge vty)# show jtree 0 sum
> JF> Protocol Routes Bytes Used
> JF> ------------- ---------- ----------
> JF> IPv4 152262 2214536
> JF> IPv6 659 11048
> JF> MPLS 4 56
> JF> Multi-service 1 16
>
>
> JF> All in all it looks like there is enough memory left so that message
> JF> shouldnt appear...
>
> JF> Regards,
> JF> Jonas
>
>
> JF> On Wed, 2004-11-24 at 09:57, Piotr Marecki wrote:
> >> Hi ,
> >>
> >> actually to see IPII lookup memory utilization one have to vty into FEB/SSB
> >> and use "
> >> one of the "cryptic" commands like "show jtree 0 memory" ,:
> >> SSB0(lab-m20-1-re0 vty)# show jtree 0 memory
> >> Memory Statistics:
> >> 16777216 bytes total (4 banks)
> >> 272480 bytes used
> >> 16504736 bytes free
> >> 16256 pages total
> >> 264 pages used
> >> 15992 pages free
> >> 31 max freelist size
> >>
> >> Of course it would be better to have it all documented :)
> >>
> >> regards
> >>
> >> Piotr Marecki
> >> Netia S.A
> >>
> >> ----- Original Message -----
> >> From: "Bostjan Fele" <bostjan.fele at smart-com.si>
> >> To: "Nisar Ali" <nisar at juniper.net>; "Jonas Frey" <jf at probe-networks.de>
> >> Cc: <juniper-nsp at puck.nether.net>
> >> Sent: Wednesday, November 24, 2004 9:42 AM
> >> Subject: RE: [j-nsp] PFE problems
> >>
> >>
> >> > That is memory on PFE, so on forwarding engine. Look for "show chassis
> >> feb"
> >> > and look for memory utilization.
> >> >
> >> > Regards,
> >> > Bostjan
> >> >
> >> > --------------------------------------------------------
> >> > Bostjan FELE
> >> > CCIE #12594, InfoSec, JNCIS-M
> >> > E-mail: bostjan.fele at smart-com.si
> >> > Smart Com, d.o.o.
> >> > Brnciceva 45, 1001 Ljubljana, Slovenia
> >> > URL: http://www.smart-com.si
> >> > Tel.: +386-1-5308-312
> >> > Fax.: +386-1-5611-571
> >> > Mob.: +386-41-399-363
> >> > ---------------------------------------------------------
> >> >
> >> > -----Original Message-----
> >> > From: juniper-nsp-bounces at puck.nether.net
> >> > [mailto:juniper-nsp-bounces at puck.nether.net]On Behalf Of Nisar Ali
> >> > Sent: Wednesday, November 24, 2004 5:13 AM
> >> > To: Jonas Frey
> >> > Cc: juniper-nsp at puck.nether.net
> >> > Subject: Re: [j-nsp] PFE problems
> >> >
> >> >
> >> > On Wed, Nov 24, 2004 at 01:25:25AM +0100, Jonas Frey wrote:
> >> > > Hi,
> >> > >
> >> > > i am getting the following error all of a sudden on a M20:
> >> > >
> >> > > RT_PFE: NH IPC op 31 (CHANGE AGGREGATE NEXTHOP) failed, err 6 (No
> >> > > Memory)
> >> > >
> >> > > What does this mean/refer to? The memory of the routing engine is hardly
> >> > > 50% used.
> >> >
> >> > The message can be logged if, for any reason, the next hop change
> >> > can not be completed (may be the next hop does not exist anymore). Any
> >> > other logs before this error log started showing up? Any change
> >> > in routes?
> >> >
> >> > What JUNOS you are running? Could you share configuration, "show
> >> > chassis hard"? Do you have aggregated intefaces configured? If
> >> > yes how many, with number of component links? Can you send "
> >> > show route summary", "show route forwa summ".
> >> >
> >> > Thanks.
> >> > nisar
> >> >
> >> > > Regards,
> >> > > Jonas
> >> > >
> >> > > _______________________________________________
> >> > > juniper-nsp mailing list juniper-nsp at puck.nether.net
> >> > > http://puck.nether.net/mailman/listinfo/juniper-nsp
> >> >
> >> > --
> >> > ================================================
> >> > Nisar Ali
> >> > Network Engineering Team (NET)
> >> > ===============================================
> >> > _______________________________________________
> >> > juniper-nsp mailing list juniper-nsp at puck.nether.net
> >> > http://puck.nether.net/mailman/listinfo/juniper-nsp
> >> >
> >> > _______________________________________________
> >> > juniper-nsp mailing list juniper-nsp at puck.nether.net
> >> > http://puck.nether.net/mailman/listinfo/juniper-nsp
> >> >
> >>
> >> _______________________________________________
> >> juniper-nsp mailing list juniper-nsp at puck.nether.net
> >> http://puck.nether.net/mailman/listinfo/juniper-nsp
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>
> JF> _______________________________________________
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