network problems

Hello,

this will continue a problem report fom june 2006.

the problem (mclpool limit reached; increase NMBCLUSTERS)
occurs again. 
Now I can report the requestet logfiles:


uname -a
NetBSD 6bone.informatik.uni-leipzig.de 3.99.21 NetBSD
3.99.21 (MYCONF.MP) #3: Fri Jun 16 21:30:43 CEST 2006 
root6bone.informatik.uni-leipzig.de:/usr/obj/sys/arch/i38
6/compile/MYCONF.MP i386

uptime
8:56AM  up 30 days, 59 mins, 9 users, load averages: 7.03,
6.90, 6.21

sysctl -a | grep nmb
kern.mbuf.nmbclusters = 4096

netstat -mssv
4312 mbufs in use:
         4144 mbufs allocated to data
         168 mbufs allocated to packet headers
155856 calls to protocol drain routines
                                              small       
ext    cluster
            route               inuse             0         
0          0
                                claims           59         
0          0
                                releases         59         
0          0
              arp               inuse             0         
0          0
                                claims      1549787   
1547267    1547267
                                releases    1549787   
1547267    1547267
             unix               inuse             0         
0          0
                                claims     62171880  
37638525   29384489
                                releases   62171880  
37638525   29384489
        internet6               inuse             9         
0          0
                                claims       165986      
2279       2279
                                releases     165977      
2279       2279
              tcp               inuse           127         
0          0
                                claims     21645862         
0          0
                                releases   21645735         
0          0
              tcp rx            inuse          3662      
3662       3662
                                claims    330762517 
324683894  324667930
                                releases  330758855 
324680232  324664268
              tcp tx            inuse           124        
15         14
                                claims   1251414844 
306058326  263244103
                                releases 1251414720 
306058311  263244089
              udp               inuse             0         
0          0
                                claims      2104066         
0          0
                                releases    2104066         
0          0
                                              small       
ext    cluster
              udp rx            inuse             0         
0          0
                                claims      6841186   
4732822    4732822
                                releases    6841186   
4732822    4732822
              udp tx            inuse             0         
0          0
                                claims      2105584         
0          0
                                releases    2105584         
0          0
         internet rx            inuse             0         
0          0
                                claims    190766461 
185167763  185167763
                                releases  190766461 
185167763  185167763
         internet tx            inuse             0         
0          0
                                claims    209557626     
18767      18767
                                releases  209557626     
18767      18767
         internet               inuse             0         
0          0
                                claims       204701     
12313      12313
                                releases     204701     
12313      12313
              lo0               inuse             0         
0          0
                                claims      6105836         
0          0
                                releases    6105836         
0          0
              wm0 rx            inuse             0         
0          0
                                claims    239504584 
239504584  239504584
                                releases  239504584 
239504584  239504584
              wm0 tx            inuse             0         
0          0
                                claims    736307865 
198348515  172974187
                                releases  736307865 
198348515  172974187
                                              small       
ext    cluster
             fxp0 rx            inuse           128       
128        128
                                claims     90894161  
90878863   90878863
                                releases   90894033  
90878735   90878735
             fxp0 tx            inuse             0         
0          0
                                claims     86321252   
5127885     118489
                                releases   86321252   
5127885     118489
          unknown data          inuse           256       
256        256
                                claims   1341928497 
239259539  239259539
                                releases 1341928241 
239259283  239259283
          unknown header        inuse             0         
0          0
                                claims    313057011         
0          0
                                releases  313057011         
0          0
          unknown soname        inuse             0         
0          0
                                claims     24158045         
0          0
                                releases   24158045         
0          0
          unknown soopts        inuse             0         
0          0
                                claims      1834563         
0          0
                                releases    1834563         
0          0
          unknown control       inuse             0         
0          0
                                claims          171         
0          0
                                releases        171         
0          0