| < draft-ietf-isis-gmpls-extensions-18.txt | draft-ietf-isis-gmpls-extensions-19.txt > | |||
|---|---|---|---|---|
| Network Working Group K. Kompella, Editor | Network Working Group K. Kompella, Editor | |||
| Internet Draft Y. Rekhter, Editor | Internet Draft Y. Rekhter, Editor | |||
| Category: Informational Juniper Networks | Category: Informational Juniper Networks | |||
| Updates: <isis te> October 2003 | Updates: <isis te> October 2003 | |||
| Expires: April 2004 | Expires: April 2004 | |||
| IS-IS Extensions in Support of Generalized | IS-IS Extensions in Support of Generalized | |||
| Multi-Protocol Label Switching | Multi-Protocol Label Switching | |||
| draft-ietf-isis-gmpls-extensions-18.txt | draft-ietf-isis-gmpls-extensions-19.txt | |||
| Status of this Memo | Status of this Memo | |||
| This document is an Internet-Draft and is in full conformance with | This document is an Internet-Draft and is in full conformance with | |||
| all provisions of Section 10 of RFC2026. | all provisions of Section 10 of RFC2026. | |||
| Internet-Drafts are working documents of the Internet Engineering | Internet-Drafts are working documents of the Internet Engineering | |||
| Task Force (IETF), its areas, and its working groups. Note that | Task Force (IETF), its areas, and its working groups. Note that | |||
| other groups may also distribute working documents as Internet- | other groups may also distribute working documents as Internet- | |||
| Drafts. | Drafts. | |||
| skipping to change at page 2, line 20 ¶ | skipping to change at page 2, line 20 ¶ | |||
| Specification of Requirements | Specification of Requirements | |||
| The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", | The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", | |||
| "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this | "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this | |||
| document are to be interpreted as described in RFC 2119 [RFC2119]. | document are to be interpreted as described in RFC 2119 [RFC2119]. | |||
| Changes since last revision | Changes since last revision | |||
| (RFC Editor: remove this section before publication.) | (RFC Editor: remove this section before publication.) | |||
| Incorporated IESG comments on the GMPLS OSPF document. | Incorporated IESG comments: updated Security Considerations and IANA | |||
| Considerations. | ||||
| More formatting changes. | ||||
| 1. Introduction | 1. Introduction | |||
| This document specifies extensions to the IS-IS routing protocol in | This document specifies extensions to the IS-IS routing protocol in | |||
| support of carrying link state information for Generalized | support of carrying link state information for Generalized | |||
| Multi-Protocol Label Switching (GMPLS). The set of required | Multi-Protocol Label Switching (GMPLS). The set of required | |||
| enhancements to IS-IS are outlined in [GMPLS-ROUTING]. Support for | enhancements to IS-IS are outlined in [GMPLS-ROUTING]. Support for | |||
| unnumbered interfaces assumes support for the "Point-to-Point | unnumbered interfaces assumes support for the "Point-to-Point | |||
| Three-Way Adjacency" IS-IS Option type [ISIS-3way]. | Three-Way Adjacency" IS-IS Option type [ISIS-3way]. | |||
| skipping to change at page 4, line 4 ¶ | skipping to change at page 3, line 50 ¶ | |||
| 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 | |||
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| |Protection Cap | Reserved | | |Protection Cap | Reserved | | |||
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| The first octet is a bit vector describing the protection | The first octet is a bit vector describing the protection | |||
| capabilities of the link (see Section "Link Protection Type" of | capabilities of the link (see Section "Link Protection Type" of | |||
| [GMPLS-ROUTING]). They are: | [GMPLS-ROUTING]). They are: | |||
| 0x01 Extra Traffic | 0x01 Extra Traffic | |||
| 0x02 Unprotected | ||||
| 0x02 Unprotected | ||||
| 0x04 Shared | 0x04 Shared | |||
| 0x08 Dedicated 1:1 | 0x08 Dedicated 1:1 | |||
| 0x10 Dedicated 1+1 | 0x10 Dedicated 1+1 | |||
| 0x20 Enhanced | 0x20 Enhanced | |||
| 0x40 Reserved | 0x40 Reserved | |||
| skipping to change at page 9, line 36 ¶ | skipping to change at page 9, line 36 ¶ | |||
| Vishal Sharma | Vishal Sharma | |||
| EMail: v.sharma@ieee.org | EMail: v.sharma@ieee.org | |||
| 4. Acknowledgements | 4. Acknowledgements | |||
| The authors would like to thank Jim Gibson, Suresh Katukam, Jonathan | The authors would like to thank Jim Gibson, Suresh Katukam, Jonathan | |||
| Lang and Quaizar Vohra for their comments on the draft. | Lang and Quaizar Vohra for their comments on the draft. | |||
| 5. Security Considerations | 5. Security Considerations | |||
| This document raises no new security concerns for IS-IS. | This document specifies the contents of GMPLS TE TLVs in ISIS. As | |||
| these TLVs are not used for SPF computation or normal routing, the | ||||
| extensions specified here have no direct effect on IP routing. | ||||
| Tampering with GMPLS TE TLVs may have an effect on the underlying | ||||
| transport (optical and/or SONET-SDH) network. Mechanisms to secure | ||||
| ISIS Link State PDUs and/or the TE TLVs can be used to secure the | ||||
| GMPLS TE TLVs as well. | ||||
| 6. IANA Considerations | ||||
| This document defines the following new ISIS TLV type that needs to | ||||
| be reflected in the ISIS TLV code-point registry: | ||||
| Type Description IIH LSP SNP | ||||
| ---- ---------------------- --- --- --- | ||||
| 138 Shared Risk Link Group n y n | ||||
| This document also defines the following new sub-TLV types of | ||||
| top-level TLV 22 that need to be reflected in the ISIS sub-TLV | ||||
| registry for TLV 22: | ||||
| Type Description Length | ||||
| ---- ------------------------------ -------- | ||||
| 4 Link Local/Remote Identifiers 8 | ||||
| 20 Link Protection Type 2 | ||||
| 21 Interface Switching Capability variable | ||||
| Descriptor | ||||
| Normative References | Normative References | |||
| [GMPLS-ROUTING] Kompella, K., and Rekhter, Y. (Editors), "Routing | [GMPLS-ROUTING] Kompella, K., and Rekhter, Y. (Editors), "Routing | |||
| Extensions in Support of Generalized Multi-Protocol Label | Extensions in Support of Generalized Multi-Protocol Label | |||
| Switching", (work in progress) [draft-ietf-ccamp-gmpls- | Switching", (work in progress) [draft-ietf-ccamp-gmpls- | |||
| routing-08.txt] | routing-08.txt] | |||
| [GMPLS-RSVP] Berger, L., (Editor), "Generalized Multi-Protocol Label | [GMPLS-RSVP] Berger, L., (Editor), "Generalized Multi-Protocol Label | |||
| Switching (GMPLS) Signaling Resource ReserVation Protocol-Traffic | Switching (GMPLS) Signaling Resource ReserVation Protocol-Traffic | |||
| End of changes. 6 change blocks. | ||||
| 7 lines changed or deleted | 29 lines changed or added | |||
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