Re: [bess] Query/comments on draft-ietf-bess-evpn-lsp-ping-05
"Parag Jain (paragj)" <paragj@cisco.com> Tue, 07 September 2021 18:25 UTC
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From: "Parag Jain (paragj)" <paragj@cisco.com>
To: "Dikshit, Saumya" <saumya.dikshit@hpe.com>,
"draft-ietf-bess-evpn-lsp-ping@ietf.org"
<draft-ietf-bess-evpn-lsp-ping@ietf.org>, "bess@ietf.org" <bess@ietf.org>
CC: "bess-chairs@ietf.org" <bess-chairs@ietf.org>
Thread-Topic: Query/comments on draft-ietf-bess-evpn-lsp-ping-05
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Date: Tue, 7 Sep 2021 18:25:39 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/bess/Xwb6Ch2cSIhYrxzpBz6uFlXpnIg>
Subject: Re: [bess] Query/comments on draft-ietf-bess-evpn-lsp-ping-05
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Hi Saumya The remote PE router processing the lsp ping packet, does consistency checks between data plane and control plane. RD, ESI fields along with other fields defined in the sub-tlvs are used for that purpose. Wildcard/don’t care values for these fields will defeat the purpose of DP-CP consistency checks. Thanks Parag From: "Dikshit, Saumya" <saumya.dikshit@hpe.com> Date: Thursday, September 2, 2021 at 1:42 PM To: "draft-ietf-bess-evpn-lsp-ping@ietf.org" <draft-ietf-bess-evpn-lsp-ping@ietf.org>rg>, "bess@ietf.org" <bess@ietf.org> Cc: "bess-chairs@ietf.org" <bess-chairs@ietf.org> Subject: Query/comments on draft-ietf-bess-evpn-lsp-ping-05 Resent-From: <alias-bounces@ietf.org> Resent-To: <paragj@cisco.com>om>, <sboutros@ciena.com>om>, <gregimirsky@gmail.com>om>, <sajassi@cisco.com>om>, <ssalam@cisco.com> Resent-Date: Thursday, September 2, 2021 at 1:42 PM [sending the queries in a different email with changed subject line] Hello Authors of draft-ietf-bess-evpn-lsp-ping draft, I have following queries regarding this draft: >>>> Do we intend-to-use/call-out-usage-of “wild-card/don’t-care” values for attributes carried in the sub-TLVs ? For example, If the admin intends to check the reachability to host (MAC_X/IP_X) published (in route-type-2) by remote PE. The remote PE learnt it locally over ESI_X against Vlan X (mapped to BD_XYZ). Is it possible, that the “EVPN MAC sub-tlv” can carry the “Route Distinguisher” and “Ethernet Segment Identifier” as don’t care. >>>> Another caseto handle would be test the reachability to tenant-VRF VRF_X (with EVPN mapped EVI) configured on the remote PE, PE1. VRF_X has no active IP/IPv6 interface configured and its sole usage is to obtain the leaked (via IVRL) routes from other VRFs (non-EVPN) and PE1 published this to other peers via EVPN control plane. Till the first prefix (learnt ) route is published (Route Type 5) by PE1 for the EVI (mapped to VRF_X), the tunnels will not be provisioned on other PEs. In order to test the reachability to VRF_X (on PE1) from another PEs, let’s say, PE2 or a centralized-controller (which can emulate/supports MPLS), It may need to carry all/subset-of attributes with “don’t-care/wild-card” in “EVPN IP Prefix Sub-TLV”. Please let know your thoughts on above. Thanks Saumya.
- [bess] Query/comments on draft-ietf-bess-evpn-lsp… Dikshit, Saumya
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Dikshit, Saumya
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Parag Jain (paragj)
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Dikshit, Saumya
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Parag Jain (paragj)
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Dikshit, Saumya
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Parag Jain (paragj)
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Dikshit, Saumya
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Greg Mirsky
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Dikshit, Saumya
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Greg Mirsky
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Dikshit, Saumya
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Parag Jain (paragj)
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Gyan Mishra
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Dikshit, Saumya
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Gyan Mishra
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Greg Mirsky
- Re: [bess] Query/comments on draft-ietf-bess-evpn… Dikshit, Saumya