[j-nsp] M20 PFE/SSB-E problems

Wed Oct 1 10:41:02 EDT 2008

Hi list.

We are having the following messages in one M20, when activating BGP
neighbors:

<... OUTPUT SUPRESSED ....>

Sep 15 07:00:59  any-router-name ssb RT: Failed prefix add IPv4:0 -
189.57.60.64/29 (no memory)

Sep 15 07:00:59  any-router-name ssb RT: Failed prefix add IPv4:0 -
189.57.66.4/30 (no memory)

Sep 15 07:00:59  any-router-name ssb RT: Failed prefix add IPv4:0 -
201.91.127.144/29 (no memory)

Sep 15 07:00:59  any-router-name ssb RT: Failed prefix add IPv4:0 -
201.91.108.88/30 (no memory)

Sep 15 07:01:04  any-router-name /kernel: RT_PFE: NH IPC op 1 (ADD
NEXTHOP) failed, err 6 (No Memory)

Sep 15 07:01:04  any-router-name /kernel: RT_PFE: NH details: idx 963
type 2 ifl 69

Sep 15 07:01:04  any-router-name /kernel: RT_PFE: NH IPC op 32 (ADD
INDIRECT NEXTHOP) failed, err 5 (Invalid)

Sep 15 07:01:04  any-router-name /kernel: RT_PFE: RT msg op 1 (PREFIX
ADD) failed, err 5 (Invalid)

Sep 15 07:01:04  any-router-name /kernel: RT_PFE: RT msg op 1 (PREFIX
ADD) failed, err 5 (Invalid)

Sep 15 07:01:04  any-router-name ssb NH: Indirect nh (262324) with
unknown target nh (963)

Sep 15 07:01:04  any-router-name ssb RT: Failed prefix add IPv4:0 -
189.56.186.70 (unknown nh_id)

Sep 15 07:01:04  any-router-name ssb RT: Failed prefix add IPv4:0 -
189.56.186.70, nh 262324, ifidx 0, nhifl 0, flag 0x0, cos 0

Sep 15 07:01:04  any-router-name ssb RT: Failed prefix add IPv4:0 -
189.56.186.68/30 (unknown nh_id)

Sep 15 07:01:04  any-router-name ssb RT: Failed prefix add IPv4:0 -
189.56.186.68/30, nh 262324, ifidx 0, nhifl 0, flag 0x0, cos 0

Sep 15 07:01:05  any-router-name /kernel: RT_PFE: RT msg op 3 (PREFIX
CHANGE) failed, err 5 (Invalid)

Sep 15 07:01:05  any-router-name /kernel: RT_PFE: RT msg op 3 (PREFIX
CHANGE) failed, err 5 (Invalid)

Sep 15 07:01:05  any-router-name /kernel: RT_PFE: NH IPC op 11 (DELETE
NEXTHOP) failed, err 7 (Doesn't Exist)

Sep 15 07:01:05  any-router-name /kernel: RT_PFE: NH IPC op 11 (DELETE
NEXTHOP) failed, err 7 (Doesn't Exist)

Sep 15 07:01:05  any-router-name ssb RT: Failed prefix delete IPv4:0 -
116.212.104/21 (unknown prefix)

Sep 15 07:01:05  any-router-name ssb RT: Failed prefix delete IPv4:0 -
120.50.0/19 (unknown prefix)

Sep 15 07:01:05  any-router-name ssb RT: Failed prefix change IPv4:0 -
189.56.186.70, nh 262153, ifidx 0, nhifl 0, flag 0x0, cos 0

Sep 15 07:01:05  any-router-name ssb RT: Failed prefix change IPv4:0 -
189.56.186.70 (unknown prefix)

Sep 15 07:01:05  any-router-name ssb RT: Failed prefix change IPv4:0 -
189.56.186.68/30, nh 262153, ifidx 0, nhifl 0, flag 0x0, cos 0

Sep 15 07:01:05  any-router-name ssb RT: Failed prefix change IPv4:0 -
189.56.186.68/30 (unknown prefix)

Sep 15 07:01:05  any-router-name ssb NH: Failed to find nh (963) for
deletion

Sep 15 07:01:05  any-router-name ssb NH: Failed to find nh (262324) for
deletion

Sep 15 07:01:06  any-router-name /kernel: RT_PFE: NH IPC op 1 (ADD
NEXTHOP) failed, err 6 (No Memory)

Sep 15 07:01:06  any-router-name /kernel: RT_PFE: NH details: idx 963
type 2 ifl 69

Sep 15 07:01:06  any-router-name /kernel: RT_PFE: NH IPC op 32 (ADD
INDIRECT NEXTHOP) failed, err 5 (Invalid)

Sep 15 07:01:06  any-router-name /kernel: RT_PFE: RT msg op 1 (PREFIX
ADD) failed, err 5 (Invalid)

Sep 15 07:01:06  any-router-name last message repeated 3 times

<... OUTPUT SUPRESSED ....>

Off course, many other log messages like these are being generated.

After researching on the problem, I could check that this issue was
already observed on the list:

https://puck.nether.net/pipermail/juniper-nsp/2005-March/003914.html -
Author: Jonas Frey

https://puck.nether.net/pipermail/juniper-nsp/2004-November/003245.html
- Author: Jonas Frey

Unfortunately, none of the above subjects had a solution....

Possible causes should be:

-          next hop change can not be completed;

-          Lack of memory on the SSB0.

Does anybody know what are the real causes of this behavior and the
solution? Maybe Mr. Jonas Frey?

Thanks in advance!

Thiago Drechsel