Hi Rishabh, Thank you for your reply very much. For MPLS data plane, it may be nice to introduce DCB concept since it is different than SRGB or SRLB. For SRv6 data plane, is it the same as MPLS that has a concept like “DCB” to allocate an SRv6 SID and put after the replication SID ?
-Jingrong 本邮件及其附件可能含有华为公司的保密信息，仅限于发送给上面地址中列出的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、或散发）本邮件中的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本邮件！ This e-mail and its attachments may contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! From: Rishabh Parekh [mailto:risha...@gmail.com] Sent: Thursday, December 8, 2022 6:52 AM To: Xiejingrong (Jingrong) <xiejingr...@huawei.com> Cc: James Guichard <james.n.guich...@futurewei.com>; SPRING WG <spring@ietf.org>; spring-cha...@ietf.org Subject: Re: [spring] WGLC for draft-ietf-spring-sr-replication-segment Jingrong, For the second one regarding the SID after the replication SID, I still have some further question when considering it a “VPN SID”: In MPLS data plane, Is the SID an Upstream-assigned Label ? Or an SRGB label (though may be a more strictly unique number than SRGB that is a relatively unique index/offset ) ? In SRv6 data plane, is the SID an “Upstream-assigned SRv6 SID”, which is allocated on Ingress PE and put in the SID list after the replication SID ? The VPN SID is only required when SR P2MP trees are shared across VPNs. It can be upstream assigned or globally assigned (from DCB) as described in SR P2MP MVPN<https://datatracker.ietf.org/doc/draft-ietf-bess-mvpn-evpn-sr-p2mp/> draft. If present, the VPN SID is after the Replication SID. For SR-MPLS, the VPN SID SHOULD NOT be assigned from SRGB or SRLB since it is an overlay context, -Rishabh
_______________________________________________ spring mailing list spring@ietf.org https://www.ietf.org/mailman/listinfo/spring
