melman@techunix.BITNET (David Melman) (12/27/88)
We have a ethernet with many different machines running various versions of Unix and other operating systems. Our host, a Vax 785 running 4.3BSD with original TCP/IP code, usually communicates with the net without problems. However recently, with random occurances (from once a week to three times a day), a situation arises where every attempt to access the net results in a failure with the message: "No buffer space available". When this situation occurs, the machine is completely cut off to the net and is cleared only by a reboot. This has occurred on other hosts running 4.3BSD and Mt. XINU on the lan as well. Interestingly enough, a 'netstat -m' shows there are plenty of mbufs available. What is happening? Thanks in advance for suggestions to overcome this problem. David melman@technunix.BITNET