Also sprach ved@iyka.com
Quoting Terry Kennedy <terry@olypen.com>:
Why do suggest the MTU value 576? I beleive the default 1514. Why the change?
Windows operating system has issues with higher MTU values, they do not negotiate MTU properlly.
OK...let's clarify here...'cause I'm not sure. Does windows have problem with *sending* or *receiving* large packets (or both?) The reason that I ask is that you seem to be using "MTU" for both sending and receiving packets. Keep in mind that "MTU" means "Maximum Transmission Unit", meaning that its the largest size packet that the host will *send*...it has nothing to do with how large of a packet that the host is willing and able to receive. You could easily have a host with an MTU of 276 that is still willing and able to receive packets of size 1500.
By setting a lower MTU, you are forcing the sending end to fragment the packet.
Yeah, and with PMTUD being a crap-shoot at best on the Internet, forcing the sending end to fragment the packet is a crap-shoot at best. What if the sending server is behind a LocalDirector or some other load balancing device...all of a sudden, PMTUD doesn't work and you're client on that connection can't transfer any data from that site. So sorry. -- Jeff McAdams Email: jeffm@iglou.com Head Network Administrator Voice: (502) 966-3848 IgLou Internet Services (800) 436-4456 - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.