Ping: no buffer space available

[Bolke de Bruin]

Hello,

I have had the following error on Openbsd 3.6/Sparc with a 3com 905:
ping: no buffer space available

Today I found the same error on a linux host, both hosts did not accept 
any connections any more neither were able to initiate any on that 
interface. A ifconfig down/up fixed it on the openbsd box. A reboot 
seemed necessary on the linux box. I could not find any information for 
this issue, so I am wondering what is going on?

Regards,

Bolke