Hi Lizhong, Thanks for your time. Please see inline..
>Hi Nagendra, >I read the draft, and have some questions: >1. the NVO3 ping uses 3503 as the destination port, then the transport >path >of NVO3 Ping would be different with NVO3 tunnel (I am referring to VXLAN >tunnel), which means NVO3 ping could not detect the NVO3 tunnel dataplane >failure. Do you want to only detect the IP layer failure for the overlay >network? <Nagendra> You are right that the NVO3 ping uses a different destination port. But it also provides a way to perform ECMP pat validation. So when there are multiple paths between the ingress/egress, it provides a way to validate all paths. >2. The purpose of this draft is to validate the L2/L3 VN context. But as >my >understanding, you could only detect the existence of the L2/L3 VN >context. >The validation of L2/L3 VN context would not only include the existence of >the entry, but also include the correctness of the output. >Maybe I have missed something important in the draft. <Nagendra> This is an initial draft where we just mentioned the L2/L3 VN ID. It not only provides a way to check the presence of the VN but can be extended to carry relevant information like MAC that can be used by the egress to perform the validation. We will include the details and TLV in future version. Please let me know if this answers your query. Thanks, Nagendra > >Regards >Lizhong > > >> -----Original Message----- >> From: Nagendra Kumar Nainar (naikumar) [mailto:[email protected]] >> Sent: 2013年12月4日 7:41 >> To: [email protected] >> Cc: Carlos Pignataro (cpignata) >> Subject: [nvo3] FW: I-D Action: draft-kumar-nvo3-overlay-ping-00.txt >> >> Hi, >> >> Below is the draft we published on NVO3 path ping. Please read the same >> and share your comments. >> >> Thanks, >> Nagendra >> >> >> > >> >A New Internet-Draft is available from the on-line Internet-Drafts >> >directories. >> > >> > >> > Title : Detecting NVO3 Overlay Data Plane failures >> > Author(s) : Nagendra Kumar >> > Carlos Pignataro >> > Dhananjaya Rao >> > Filename : draft-kumar-nvo3-overlay-ping-00.txt >> > Pages : 14 >> > Date : 2013-07-15 >> > >> >Abstract: >> > This document describes a simple and efficient mechanism to perform >> > L2 or L3 VN Context validation and to detect any data plane failures >> > in IPv4 or IPv6 based overlay network providing L2 or L3 virtualized >> > network. >> > >> > >> >The IETF datatracker status page for this draft is: >> >https://datatracker.ietf.org/doc/draft-kumar-nvo3-overlay-ping >> > >> >There's also a htmlized version available at: >> >http://tools.ietf.org/html/draft-kumar-nvo3-overlay-ping-00 >> > >> > >> >Internet-Drafts are also available by anonymous FTP at: >> >ftp://ftp.ietf.org/internet-drafts/ >> > >> >_______________________________________________ >> >I-D-Announce mailing list >> >[email protected] >> >https://www.ietf.org/mailman/listinfo/i-d-announce >> >Internet-Draft directories: http://www.ietf.org/shadow.html or >> >ftp://ftp.ietf.org/ietf/1shadow-sites.txt >> > > _______________________________________________ nvo3 mailing list [email protected] https://www.ietf.org/mailman/listinfo/nvo3
