[...] > The biggest hit is actually in the forwarding. Each packet > gets at least one additional table lookup (for the incoming > zone id). Then there are the checks to ensure that the source > address is valid (e.g. a site-local SA and global DA trying > to cross a site border).
you have to do the outgoing check for link-locals anyway. > The extra cost? Performance drops around 25-30% for a SBR > between 3 sites. Of course, this was all software based, > but even a hardware-based solution will take the extra lookup > hits. I don't see a performance drop in our implementation. an additional table lookup is not needed for forwarding. you need to figure out the scope of the DA of course, but that is needed for link-local/multicast anyway. cheers, Ole -------------------------------------------------------------------- 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] --------------------------------------------------------------------
