Hi, Ron, Authors, As I was reading over draft-ietf-intarea-probe-00, and wanted to share a couple of observations for your consideration.
* Have you considered the tradeoff of defining new ICMP Types versus extending existing ICMP Types? If using existing ICMPv6 Echo Request/Reply and extending them instead of defining brand new types, the backwards interoperability achieved is higher * Have you considered using other protocols as well in addition to ICMP for the PROBE message, which can elicit ICMP errors or responses with appropriate extensions? In particular UDP is a protocol much used and desired for probes. These two points actually reminded me of https://tools.ietf.org/html/draft-shen-traceroute-ping-ext-04 (and the ICMP-only predecessor draft-shen-udp-traceroute-ext-01) that defines a probe extension applied to ICMP Echo Request and UDP, and RFC 4884 extensions to responses. That approach seems somewhat more generic. Additionally, I was also reminded of the ICMP AUP at RFC 7279, it would be useful to map against that doc to show how this is (as it is the case) a really good use of ICMP. Thanks! — Carlos. On Jun 23, 2017, at 3:55 PM, [email protected]<mailto:[email protected]> wrote: A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Internet Area Working Group of the IETF. Title : PROBE: A Utility For Probing Interfaces Authors : Ron Bonica Reji Thomas Jen Linkova Chris Lenart Mohamed Boucadair Filename : draft-ietf-intarea-probe-00.txt Pages : 17 Date : 2017-06-23 Abstract: This document describes a network diagnostic tool called PROBE. PROBE is similar to PING, in that it can be used to test the status of a probed interface. It differs from PING in that it does not require bidirectional connectivity between the probing and probed interfaces. Alternatively, PROBE requires bidirectional connectivity between the probing interface and a proxy interface. The proxy interface can reside on the same node as the probed interface or it can reside on a node to which the probed interface is directly connected. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-intarea-probe/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-intarea-probe-00 https://datatracker.ietf.org/doc/html/draft-ietf-intarea-probe-00 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ _______________________________________________ Int-area mailing list [email protected] https://www.ietf.org/mailman/listinfo/int-area — Carlos Pignataro, [email protected]<mailto:[email protected]> “Sometimes I use big words that I do not fully understand, to make myself sound more photosynthesis."
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