Hi Sudhin, Please see in-line. Thanks. Jorge
From: BESS <bess-boun...@ietf.org<mailto:bess-boun...@ietf.org>> on behalf of sudeep g ggg <sudhinja...@rediffmail.com<mailto:sudhinja...@rediffmail.com>> Date: Wednesday, November 25, 2015 at 2:58 PM To: "bess@ietf.org<mailto:bess@ietf.org>" <bess@ietf.org<mailto:bess@ietf.org>> Subject: [bess] REG: draft-rabadan-bess-evpn-ac-df-02 Respected Authors, I had gone through the draft at high level,I am happy to see a real provider provisioning issues addressed in your draft. Much appreciated. Some key highlights in your draft. 1. No changes. 2. Using existing features to address a problem. 3. Addresses provisioning issues. [JORGE] not only provisioning issues but also ‘logical’ failures like an "Attachment Circuit” going oper-down due to OAM or admin shutdown. How ever I have following queries. May I know how to deal with vlan provisioning issues like one PE will have vlan 2,3,4 and other PE will have 3,4 this will end up in both PE's as DF correct me if I am wrong, you use type 1 Ad per ES and EVI for DF election, how about vlan issues. [JORGE] the draft talks about how to influence the DF election based on the status of an “Attachment Circuit (AC)”. For VLAN-based services, a customer VID equals an AC (and there is a single VLAN per EVI per ES), hence in this case you can actually catch VLAN provisioning mistakes, i.e. if you don’t provision VLAN 2 in PE1, PE1 won’t ever send the AD per EVI route for that VLAN, hence PE1 won’t be elected the DF within the ES in any PE using the AD per-EVI route in the DF election. May I know how to handle transient loop during 3 seconds period during DF election.May I know the state of PE during the DF election, clarity required[humble opinion]. [JORGE] the draft is not changing the DF election itself (where, by the way, there is no transient loops). It is only removing PEs from the candidate DF list for a given EVI based on the presence of the AD per-EVI route. All the rest of the RFC7432 procedures are kept intact. This seems to be a good customer focused solution. I appreciate it.[please note: this is my humble opinion as an individual not representing any one] Regards, Sudhin Jacob [https://sigads.rediff.com/RealMedia/ads/adstream_nx.ads/www.rediffmail.com/signatureline.htm@Middle]<https://sigads.rediff.com/RealMedia/ads/click_nx.ads/www.rediffmail.com/signatureline.htm@Middle?> Get your own FREE website, FREE domain & FREE mobile app with Company email. Know More ><http://track.rediff.com/click?url=___http://businessemail.rediff.com?sc_cid=sign-1-10-13___&cmp=host&lnk=sign-1-10-13&nsrv1=host>
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