% >But I take it from your question that you'd like to see a fixed number for % >the MTU. Is this really necessary? % % yes, it definitely needs to be a fixed number. in other words, IPv6 % link MTU should not be computed based on IPv4 PMTU (which is dynamic). % PMTUD assumes that link MTUs are stable enough. by using IPv4 PMTU % as basis for IPv6 link MTU, IPv6 link MTU will be affected by IPv4 % routing changes. it will have negative impact to IPv6 PMTUD. % % itojun
for "cross-talk" to occur, is there a presumption of fate-sharing on links? e.g. do you presume that a single link will always support both v4 and v6? -- --bill -------------------------------------------------------------------- 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] --------------------------------------------------------------------