--- 1/draft-ietf-lsr-flex-algo-03.txt 2019-09-18 06:13:12.576699562 -0700 +++ 2/draft-ietf-lsr-flex-algo-04.txt 2019-09-18 06:13:12.636701075 -0700 @@ -1,24 +1,24 @@ Network Working Group P. Psenak, Ed. Internet-Draft Cisco Systems Intended status: Standards Track S. Hegde -Expires: January 5, 2020 Juniper Networks, Inc. +Expires: March 21, 2020 Juniper Networks, Inc. C. Filsfils K. Talaulikar Cisco Systems, Inc. A. Gulko Thomson Reuters - July 4, 2019 + September 18, 2019 IGP Flexible Algorithm - draft-ietf-lsr-flex-algo-03.txt + draft-ietf-lsr-flex-algo-04.txt Abstract IGP protocols traditionally compute best paths over the network based on the IGP metric assigned to the links. Many network deployments use RSVP-TE based or Segment Routing based Traffic Engineering to enforce traffic over a path that is computed using different metrics or constraints than the shortest IGP path. This document proposes a solution that allows IGPs themselves to compute constraint based paths over the network. This document also specifies a way of using @@ -33,21 +33,21 @@ Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." - This Internet-Draft will expire on January 5, 2020. + This Internet-Draft will expire on March 21, 2020. Copyright Notice Copyright (c) 2019 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents @@ -650,21 +650,21 @@ 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 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Type | Length |Flex-Algorithm | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Metric | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ where: - Type: TBD, suggested value 5 + Type: TBD, suggested value 6 Length: 5 octets Flex-Algorithm: Single octet value between 128 and 255 inclusive. Metric: 4 octets of metric information ISIS FAPM Sub-TLV MAY appear multiple times in its parent TLV. If it appears more then once with the same Flex-Algorithm value, the first appearance MUST be used and any subsequent ones MUST be ignored. @@ -707,21 +707,21 @@ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Type | Length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |Flex-Algorithm | Reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Metric | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ where: - Type: TBD, suggested value for OSPFv2 is 3, for OSPFv3 is 10 + Type: TBD, suggested value for OSPFv2 is 3, for OSPFv3 is 26 Length: 8 octets Flex-Algorithm: Single octet value between 128 and 255 inclusive. Reserved: Must be set to 0, ignored at reception. Metric: 4 octets of metric information OSPF FAPM Sub-TLV MAY appear multiple times in its parent TLV. If it @@ -1081,21 +1081,21 @@ Description: Flexible Algorithm Definition. Reference: This document (Section 5.1). 16.3.2. Sub TLVs for for TLVs 135, 235, 236, and 237 This document makes the following registrations in the "Sub-TLVs for for TLVs 135, 235, 236, and 237" registry. - Type: TBD (suggested value 5). + Type: TBD (suggested value 6). Description: Flex-Algorithm Prefix Metric. Reference: This document (Section 8). 16.3.3. Sub-Sub-TLVs for Flexible Algorithm Definition Sub-TLV This document creates the following Sub-Sub-TLV Registry: Registry: Sub-Sub-TLVs for Flexible Algorithm Definition Sub-TLV @@ -1148,21 +1148,21 @@ Description: Flex-Algorithm Prefix Metric. Reference: This document (Section 9). 16.4.3. OSPFv3 Extended-LSA Sub-TLVs This document makes the following registrations in the "OSPFv3 Extended-LSA Sub-TLVs" registry. - Type: TBD (suggested value 10). + Type: TBD (suggested value 26). Description: Flex-Algorithm Prefix Metric. Reference: This document (Section 9). 16.4.4. OSPF Flexible Algorithm Definition TLV Sub-TLV Registry This document creates the following registry: Registry: OSPF Flexible Algorithm Definition TLV sub-TLV @@ -1238,45 +1238,45 @@ Segment Routing", draft-ietf-isis-segment-routing- extensions-25 (work in progress), May 2019. [I-D.ietf-isis-te-app] Ginsberg, L., Psenak, P., Previdi, S., Henderickx, W., and J. Drake, "IS-IS TE Attributes per application", draft- ietf-isis-te-app-06 (work in progress), April 2019. [I-D.ietf-lsr-isis-srv6-extensions] Psenak, P., Filsfils, C., Bashandy, A., Decraene, B., and - Z. Hu, "IS-IS Extensions to Support Routing over IPv6 - Dataplane", draft-ietf-lsr-isis-srv6-extensions-00 (work - in progress), May 2019. + Z. Hu, "IS-IS Extension to Support Segment Routing over + IPv6 Dataplane", draft-ietf-lsr-isis-srv6-extensions-02 + (work in progress), July 2019. [I-D.ietf-ospf-ospfv3-segment-routing-extensions] Psenak, P. and S. Previdi, "OSPFv3 Extensions for Segment Routing", draft-ietf-ospf-ospfv3-segment-routing- extensions-23 (work in progress), January 2019. [I-D.ietf-ospf-segment-routing-extensions] Psenak, P., Previdi, S., Filsfils, C., Gredler, H., Shakir, R., Henderickx, W., and J. Tantsura, "OSPF Extensions for Segment Routing", draft-ietf-ospf-segment- routing-extensions-27 (work in progress), December 2018. [I-D.ietf-ospf-te-link-attr-reuse] Psenak, P., Ginsberg, L., Henderickx, W., Tantsura, J., and J. Drake, "OSPF Link Traffic Engineering (TE) - Attribute Reuse", draft-ietf-ospf-te-link-attr-reuse-07 - (work in progress), April 2019. + Attribute Reuse", draft-ietf-ospf-te-link-attr-reuse-08 + (work in progress), August 2019. [I-D.li-ospf-ospfv3-srv6-extensions] Li, Z., Hu, Z., Cheng, D., Talaulikar, K., and P. Psenak, "OSPFv3 Extensions for SRv6", draft-li-ospf- - ospfv3-srv6-extensions-03 (work in progress), March 2019. + ospfv3-srv6-extensions-05 (work in progress), August 2019. [ISO10589] International Organization for Standardization, "Intermediate system to Intermediate system intra-domain routeing information exchange protocol for use in conjunction with the protocol for providing the connectionless-mode Network Service (ISO 8473)", ISO/ IEC 10589:2002, Second Edition, Nov 2002. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate