[OpenAFS] MTU size -- don't set using both -maxmtu and ifconfig, at least under
Tue, 21 Apr 2009 15:44:35 -0600
From the "shoot yourself in the foot" department ...
We had some small issues trying to configure AFS file servers for
correct functioning with a firewall, and -maxmtu 1260 finally fixed the
problem, as it used to for older versions of Cisco VPN software on
Windows. [Which is why I thought of it, thank you Mr. Altman]
After getting things working I moved data onto the fileserver behind the
Of numerous Solaris 9 clients that connect via VPN and run antique cache
managers (3.6 2.53) -- only two failed to function correctly.
The two that failed to function either timed out when accessing volumes
on the fileserver in question, or succeeded after lengthy delays.
fileserver -maxmtu 1260
ifconfig bge0 mtu 1260
This may be immediately obvious to others, but it was the last place I
Once I reset the bge0 interface to mtu 1500 everything started working.
I can't say I understand the interaction, but thought mentioning it
might help someone somewhere sometime.