diff --git a/draft-ietf-sidrops-8210bis.xml b/draft-ietf-sidrops-8210bis.xml index cbcdedd..0acfd39 100644 --- a/draft-ietf-sidrops-8210bis.xml +++ b/draft-ietf-sidrops-8210bis.xml @@ -8,7 +8,7 @@ - @@ -21,13 +21,6 @@ Arrcus, DRL, & IIJ Research
- - 5147 Crystal Springs - Bainbridge Island - Washington - 98110 - United States of America - randy@psg.com
@@ -1748,8 +1741,7 @@ Cache Router
- When a cache is sending ROA (IPv4 or IPv6) PDUs to a router, - especially an initial full load in response to a Reset Query PDU, + When a cache is sending ROA (IPv4 or IPv6) PDUs to a router undesirable race conditions are possible: @@ -1759,25 +1751,26 @@ Cache Router "make before break." If a cache is feeding a router and sends the one not yet in service a significant time before sending the one currently in service, then BGP data could be marked - invalid during the interval. To minimize that interval, the - cache SHOULD announce all VRPs for the same prefix as close to - sequentially as possible, and announce new VRPs for a prefix - before any withdraws, + Invalid during the interval. To minimize that interval, the + cache SHOULD semd all VRPs for the same prefix as close to + sequentially as possible. - - If an operator has created a ROA for P0, and another operator - (likely their customer) has issued a ROA for P1 which is a - sub-prefix of P0, a router which receives the ROA for P0 - before that for P1 is likely to mark a BGP announcement of - prefix P1 invalid. Therefore, the cache SHOULD announce the - sub-prefix P1 before the covering prefix P0. Conversely, in - the case of withdrawals, the cache SHOULD withdraw covering - prefixes before their sub-prefixes. + + If an operator has created a ROA for prefix P0, and another + operator (often their customer) has created a ROA for P1 which + is a sub-prefix covered by P0, a router which receives the ROA + for P0 before that for P1 might mark BGP for prefix P1 Invalid + until the P1 announcement is processed. Therefore, the cache + SHOULD announce the sub-prefix P1 before the covering prefix + P0. Conversely, the cache SHOULD withdraw covering prefixes + before covered sub-prefixes. - + To minimize risk of inadvertent marking of BGP data as - invalid, a prefix PDU for prefix P which has an AS of 0, - SHOULD be sent after all other prefix PDUs for prefix P. + Invalid, an announcement VRP for prefix P which has an AS of + 0, SHOULD be sent after all other prefix PDUs for prefix P. + Conversely, a withdrawal VRP for prefix P which has an AS of + 0, SHOULD be sent before all other prefix PDUs for prefix P. @@ -1807,14 +1800,15 @@ Cache Router PDUs are first ordered by PDU Type, - IPv4 and IPv6 Prefix PDUs are ordered by: first IPvX Prefix, + IPv4 and IPv6 Prefix VRPs are ordered by: first IPvX Prefix, second Prefix Length, third Max Length, and fourth Autonomous - System Number. Treating AS 0 as sorting last fulfills the "AS 0 - Last" requirement of , + System Number. Treating announcements of VPUs with AS 0 as + sorting last, and withdrawals as sorting first, fulfills the "AS + 0" requirement of , - Router Keys are ordered by AS Number and then Subject Public Key - Info, + Router Key PDUs are ordered by AS Number and then Subject Public + Key Info, And ASPA PDUs ordered by Customer AS.