Referring to item 5.3, we think that the timestamp value need not be set to "Reserved".
This is because we can just use the timestamp and the current time to determine that the PMTU has expired. For example, before sending out a packet, the timer-based procedure should check if the PMTU to be used has expired based on the cached timestamp and the current time. If it has indeed expired, then no packets should be sent out using this PMTU. The PMTU value should be reset to the MTU value of the first hop and the PMTU discovery should be restarted. We think the "Reserved" value can be removed to make the process of detemining the stale PMTUs less complicated. We welcome suggestions and comments. Lim Min Min Universiti Sains Malaysia -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
