Reply_To: [EMAIL PROTECTED]
Subject: IP fragments from AFS
On further investigation, the full story is as follows.
I cd to an AFS directory and issue an ls command. The AFS fileserver
sends my client machine data of length 1500 bytes. The default MTU size
on the AIX machine acting as the AFS fileserver is 1492 bytes, so the
AFS fileserver actually sends out two packets, one with 1492 bytes of
data, the second with just 8 bytes to complete the 1500.
The puzzling thing is that when I examine the raw data sniffed on its
way round the token ring, only the first 600 bytes has meaningful data;
the final 900 bytes are all binary zeros! This seems rather inefficient.
I've cured the problem for now by changing the server's MTU size to 1500
so fragmentation no longer occurs.
Mike Prince.
