Frame-Relay fragmentation size

Hi all,

I have conflicting information for calculating the frame-relay
fragmentation size.

In the one corner, the formula is frag_size = bandwidth/8*10ms, so for a
link speed of 768k and 10-ms serialisation delay, the fragment size is
960 bytes.

In the other corner is the Doc-CD
http://www.cisco.com/en/US/docs/ios/wan/command/reference/wan_f1.html#wp1014445
under the command "frame-relay fragment" where the recommended fragment
size for 10-ms serialisation delay and lowest link speed of 768 kps is
1000 bytes (table 15).

In the lab which should I use to be safe?

regards Andy

Blogs and organic groups at http://www.ccie.net
Received on Tue Jun 01 2010 - 00:17:49 ART