Folks, At our meeting in Berlin, someone (Lars?) came to the microphone to suggest that draft-bonica-intarea-gre-mtu consider handling of the ECN bits. The purpose of this message is to seek clarification on that comment.
Section 5.3 of RFC 3168 specifies procedures for handling the ECN bit when reassembling fragmented packets. These rules must be observed by any device that reassembles fragmented packets, including tunnel egress routers. It would be reasonable to make note of this in draft-bonica-intarea-gre-mtu. Section 9.1 of RFC 3168 as well as RFC 6040, specify procedures for propagating ECN bits between the tunnel payload and delivery header. These rules apply to all tunneled packets, regardless of whether they are fragmented. Because the scope of draft-bonica-intarea-gre-mtu is limited to MTU and fragmentation issues, a discussion of these rules seems to be beyond the scope of draft-bonica-intarea-gre-mtu. Do folks agree? -------------------------- Ron Bonica vcard: www.bonica.org/ron/ronbonica.vcf _______________________________________________ Int-area mailing list Int-area@ietf.org https://www.ietf.org/mailman/listinfo/int-area
