[j-nsp] syslog rsmon jtree problem

[Juniper Iber-x]

Hello,

We have a Juniper M-20 where the syslog is showing:

[Mar  4 14:39:47.063 LOG: Warning] RSMON: Resource Category:jtree 
Instance:jtree0 Type:free-pages Available:78 is less than LWM limit:406,
rsmon_syslog_limit()
[Mar  4 14:39:47.063 LOG: Warning] RSMON: Resource Category:jtree 
Instance:jtree0 Type:free-dwords Available:13999 is less than LWM
limit:52428, rsmon_syslog_limit()

On the rsmon summary on the main SSB we see same behavior:
SSB0(vty)# show rsmon    
category    instance        type    total  lwm_limit hwm_limit     free
-------- ----------- ------------ -------- --------- --------- --------
   jtree      jtree0   free-pages     8128       406      1219       78
   jtree      jtree0  free-dwords  1048576     52428    157286    13999


At first moment we thought in a malfuntion memory on SSB. We run the
memory test described in Juniperclue,
http://juniper.cluepon.net/index.php/Unofficial_hardware_upgrades, but
the problem didn't get resolved.

We changed the memories and the same isssue persisted.

Recently, we installed a second SSB with the same features than the
first one (same memory amount -> 128M). We did configure SSB redundancy
and switching ssb0 to the ssb1 running the fail-switching commmand. At
this moment the error got solved, but in a few minutes it came back
again. Because of this, we are thinking that the error is not caused by
the SSBs on the M-20.

We have 822685 routes (274903 active, 2 holddown, 794 hidden) on the RT
inet.0
and the FT next:
Routing table: inet
Internet:
         user:         274884 routes
         perm:          4 routes
         intf:         22 routes
         dest:         59 routes

Logical router:
Routing table: inet
Internet:
         user:         274876 routes
         perm:          4 routes
         intf:          6 routes
         dest:          8 routes

Thanks for your help!!