Re: [bess] A comment about draft-ietf-bess-evpn-virtual-eth-segment
"Ali Sajassi (sajassi)" <sajassi@cisco.com> Wed, 09 August 2023 04:58 UTC
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From: "Ali Sajassi (sajassi)" <sajassi@cisco.com>
To: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>, "draft-ietf-bess-evpn-virtual-eth-segment@ietf.org" <draft-ietf-bess-evpn-virtual-eth-segment@ietf.org>
CC: "bess@ietf.org" <bess@ietf.org>, Nitsan Dolev <Nitsan.Dolev@rbbn.com>
Thread-Topic: A comment about draft-ietf-bess-evpn-virtual-eth-segment
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Date: Wed, 09 Aug 2023 04:57:49 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/bess/Fjo_EepYErE-RzwinJpLTwi_NC8>
Subject: Re: [bess] A comment about draft-ietf-bess-evpn-virtual-eth-segment
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Hi Sasha, Thanks for the comment. I welcome any comment for better clarification of this draft. As such your comment is well taken and I’ll remove “multipoint” word from the sentence. So, the new sentence will read: “… a family of solutions for Ethernet services over MPLS/IP network …” Regards, Ali From: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com> Date: Tuesday, August 8, 2023 at 8:34 AM To: draft-ietf-bess-evpn-virtual-eth-segment@ietf.org <draft-ietf-bess-evpn-virtual-eth-segment@ietf.org> Cc: bess@ietf.org <bess@ietf.org>, Nitsan Dolev <Nitsan.Dolev@rbbn.com> Subject: A comment about draft-ietf-bess-evpn-virtual-eth-segment Hi, I have a comment about the Virtual Ethernet Segment draft<https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-virtual-eth-segment-12>. The first two sentences of the Introduction to this draft says (the problematic text is highlighted): RFC7432<https://www.rfc-editor.org/info/rfc7432>] and [RFC7623<https://www.rfc-editor.org/info/rfc7623>] introduce a family of solutions for multipoint Ethernet services over MPLS/IP network with many advanced features among which their multi‑homing capabilities. These solutions introduce Single-Active and All-Active redundancy modes for an Ethernet Segment (ES), itself defined as a set of links between the multi‑homed device/network and a set of PE devices that they are connected to. Thie highlighted text above can be interpreted as restricting multi-homing capabilities of EVPN (including capabilities provided by using multi-homed virtual Ethernet segments defined in the draft) as being limited to just multipoint Ethernet service but not to EVPN-VPWS as defined in RFC 8214<https://datatracker.ietf.org/doc/html/rfc8214>. In fact, EVPN-VPWS is fully compatible with All-Active and Single-Active redundancy modes, and RFC 8214 is quite unambiguous about that. What’s more, IMHO and FWIW, multi-homing support in EVPN-VPWS is fully applicable to all aspects of virtual multi-homed Ethernet Segments. May I suggest modifying the quoted text in the Introduction to prevent possible misunderstanding? Regards, and lots of thanks in advance, Sasha Regards, Sasha Disclaimer This e-mail together with any attachments may contain information of Ribbon Communications Inc. and its Affiliates that is confidential and/or proprietary for the sole use of the intended recipient. Any review, disclosure, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and then delete all copies, including any attachments.
- [bess] A comment about draft-ietf-bess-evpn-virtu… Alexander Vainshtein
- Re: [bess] A comment about draft-ietf-bess-evpn-v… Ali Sajassi (sajassi)