After reading the Hinden/Haberman ID, I do not understand how does it (if it does) simplify the routing mechanism as described in the “impact of Site-Local addressing” ID, as described in 3.1.2.2:
“First, the forwarding engine on an SBR must look at both the source and destination addresses to determine if either of them is link- local. If so, the packet will be discarded, as above. If the destination is not link-local, it must be either site-local or global. If the destination address is site-local, the router will look at the interface on which the packet was received to determine the site-local zone in which the packet originated, and will perform a lookup in the correct site-local forwarding table and forward the packet, as indicated. If the destination address is global, the router will perform a lookup in the global routing table. It will then use the inbound interface to determine the site-local zone in which the packet originated, and the outbound interface to determine the site-local zone in which the packet will be sent. If those zones do not match, then the packet is being forwarded across a site boundary. In that case, the router will need to re-examine the source address of the packet to determine if the source is site-local. If so, the packet will be discarded, and an ICMP "scope exceeded" error message will be generated. Otherwise, the packet will be forwarded, as indicated. This processing will need to be performed for every packet that is forwarded by an SBR, and this level of complexity will impact the Impact of Site-Local Addressing in performance, cost and reliability of all IPv6 routers with SBR capability.” Aviad Raveh Radlan Computer Communications Ltd. Atidim Technological Park Bldg #4 Tel Aviv 61131 Israel Tel: +972-3-7658909 -------------------------------------------------------------------- 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] --------------------------------------------------------------------
