draft-ietf-bess-mvpn-evpn-aggregation-label-01.txt   draft-ietf-bess-mvpn-evpn-aggregation-label-02.txt 
BESS Z. Zhang BESS Z. Zhang
Internet-Draft E. Rosen Internet-Draft E. Rosen
Updates: 7432, 6514, 7582 (if approved) W. Lin Updates: 7432, 6514, 7582 (if approved) W. Lin
Intended status: Standards Track Juniper Networks Intended status: Standards Track Juniper Networks
Expires: June 10, 2019 Z. Li Expires: June 21, 2019 Z. Li
Huawei Technologies Huawei Technologies
I. Wijnands I. Wijnands
Cisco Systems Cisco Systems
December 7, 2018 December 18, 2018
MVPN/EVPN Tunnel Aggregation with Common Labels MVPN/EVPN Tunnel Aggregation with Common Labels
draft-ietf-bess-mvpn-evpn-aggregation-label-01 draft-ietf-bess-mvpn-evpn-aggregation-label-02
Abstract Abstract
The MVPN specifications allow a single Point-to-Multipoint (P2MP) The MVPN specifications allow a single Point-to-Multipoint (P2MP)
tunnel to carry traffic of multiple VPNs. The EVPN specifications tunnel to carry traffic of multiple VPNs. The EVPN specifications
allow a single P2MP tunnel to carry traffic of multiple Broadcast allow a single P2MP tunnel to carry traffic of multiple Broadcast
Domains (BDs). These features require the ingress router of the P2MP Domains (BDs). These features require the ingress router of the P2MP
tunnel to allocate an upstream-assigned MPLS label for each VPN or tunnel to allocate an upstream-assigned MPLS label for each VPN or
for each BD. A packet sent on a P2MP tunnel then carries the label for each BD. A packet sent on a P2MP tunnel then carries the label
that is mapped to its VPN or BD. (In some cases, a distinct that is mapped to its VPN or BD. (In some cases, a distinct
skipping to change at page 2, line 15 skipping to change at page 2, line 15
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on June 10, 2019. This Internet-Draft will expire on June 21, 2019.
Copyright Notice Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of (https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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VPNs/BDs/ESes combined. Option 3 is needed only for segmented VPNs/BDs/ESes combined. Option 3 is needed only for segmented
selective tunnels that are set up dynamically. Multiple options selective tunnels that are set up dynamically. Multiple options
could be used in any combination depending on the deployment could be used in any combination depending on the deployment
situation. situation.
3. Specification 3. Specification
3.1. Context Label Space ID Extended Community 3.1. Context Label Space ID Extended Community
Context Label Space ID Extended Community is a new Transitive Opaque Context Label Space ID Extended Community is a new Transitive Opaque
EC with the following structure: EC with the following structure (Sub-Type value to be assigned by
IANA):
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0x03 or 0x43 | Sub-Type | ID-Type | | 0x03 or 0x43 | Sub-Type | ID-Type |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| ID-Value | | ID-Value |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
o ID-Type: A 2-octet field that specifies the type of Label Space o ID-Type: A 2-octet field that specifies the type of Label Space
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o They MUST all carry the Context Label Space ID EC, or, o They MUST all carry the Context Label Space ID EC, or,
o None of them has the DCB-flag, or, o None of them has the DCB-flag, or,
o None of them carry the Context Label Space ID EC. o None of them carry the Context Label Space ID EC.
4. IANA Considerations 4. IANA Considerations
This document introduces a DCB-bit in the "Additional PMSI Tunnel This document introduces a DCB-bit in the "Additional PMSI Tunnel
Attribute Flags" BGP Extended Community. An IANA request will be Attribute Flags" BGP Extended Community. An IANA request will be
submitted for bit 0 as the DCB-bit in the Additional PMSI Tunnel submitted for the DCB-bit in the Additional PMSI Tunnel Attribute
Attribute Flags registry. This is subject to approval/change. Flags registry.
This document introduces a new Transitive Opaque Extended Community This document introduces a new Transitive Opaque Extended Community
"Context Label Space ID Extended Community". An IANA request will be "Context Label Space ID Extended Community". An IANA request will be
submitted for sub-type value 0x15 (subject to approval/change) in the submitted for a sub-type value in the BGP Transitive Opaque Extended
BGP Transitive Opaque Extended Community Sub-Types registry. Community Sub-Types registry.
5. Acknowledgements 5. Acknowledgements
6. Contributors 6. Contributors
The following also contributed to this document. The following also contributed to this document.
Selvakumar Sivaraj Selvakumar Sivaraj
Juniper Networks Juniper Networks
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[RFC7902] Rosen, E. and T. Morin, "Registry and Extensions for [RFC7902] Rosen, E. and T. Morin, "Registry and Extensions for
P-Multicast Service Interface Tunnel Attribute Flags", P-Multicast Service Interface Tunnel Attribute Flags",
RFC 7902, DOI 10.17487/RFC7902, June 2016, RFC 7902, DOI 10.17487/RFC7902, June 2016,
<https://www.rfc-editor.org/info/rfc7902>. <https://www.rfc-editor.org/info/rfc7902>.
7.2. Informative References 7.2. Informative References
[I-D.ietf-bess-evpn-bum-procedure-updates] [I-D.ietf-bess-evpn-bum-procedure-updates]
Zhang, Z., Lin, W., Rabadan, J., Patel, K., and A. Zhang, Z., Lin, W., Rabadan, J., Patel, K., and A.
Sajassi, "Updates on EVPN BUM Procedures", draft-ietf- Sajassi, "Updates on EVPN BUM Procedures", draft-ietf-
bess-evpn-bum-procedure-updates-04 (work in progress), bess-evpn-bum-procedure-updates-05 (work in progress),
June 2018. December 2018.
[I-D.ietf-bier-evpn] [I-D.ietf-bier-evpn]
Zhang, Z., Przygienda, T., Sajassi, A., and J. Rabadan, Zhang, Z., Przygienda, T., Sajassi, A., and J. Rabadan,
"EVPN BUM Using BIER", draft-ietf-bier-evpn-01 (work in "EVPN BUM Using BIER", draft-ietf-bier-evpn-01 (work in
progress), April 2018. progress), April 2018.
[I-D.ietf-bier-mvpn] [I-D.ietf-bier-mvpn]
Rosen, E., Sivakumar, M., Aldrin, S., Dolganow, A., and T. Rosen, E., Sivakumar, M., Aldrin, S., Dolganow, A., and T.
Przygienda, "Multicast VPN Using BIER", draft-ietf-bier- Przygienda, "Multicast VPN Using BIER", draft-ietf-bier-
mvpn-11 (work in progress), March 2018. mvpn-11 (work in progress), March 2018.
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