Network Working Group Luca Martini Internet Draft W. Mark Townsley Expiration Date: September 2004 Cisco Systems Inc. March 2004 IANA Allocations for pseudo Wire Edge to Edge Emulation (PWE3) draft-ietf-pwe3-iana-allocation-03.txt Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. 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." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. Abstract The Control and maintenance protocol for providing various Layer 1 and Layer 2 services over a Packet Switched Network has been described in [1]. This document pre-allocates the fixed Pseudo-wire identifier , and other fixed protocol values that are to be assigned by IANA using the "IETF Consensus" policy defined in RFC2434 Martini & Townsley [Page 1] Internet Draft draft-ietf-pwe3-iana-allocation-03.txt March 2004 Table of Contents 1 Specification of Requirements .......................... 2 2 PW type ................................................ 2 3 Interface Parameters field ............................. 3 4 LDP Status codes ....................................... 4 5 Pseudo Wire Status ..................................... 4 6 Security Considerations ................................ 5 7 Intellectual Property Disclaimer ....................... 5 8 References ............................................. 5 9 Author Information ..................................... 5 1. Specification of Requirements The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 2. PW type As specified in [1], a Virtual Circuit FEC element contains the PW Type field. PW Type value 0 is reserved. PW Type values 1 through 18 are defined in this document. PW Type values 19 through 63 are to be assigned by IANA using the "IETF Consensus" policy defined in RFC2434. PW Type values 64 through 127 are to be assigned by IANA, using the "First Come First Served" policy defined in RFC2434. VC Type values 128 through 32767 are vendor-specific, and values in this range are not to be assigned by IANA. The PW Type is 15 bit quantity containing a value which represents the type of PW. Assigned Values are: PW type Description 0x0001 Frame Relay DLCI 0x0002 ATM AAL5 SDU VCC transport 0x0003 ATM transparent cell transport 0x0004 Ethernet Tagged Mode 0x0005 Ethernet 0x0006 HDLC 0x0007 PPP Martini & Townsley [Page 2] Internet Draft draft-ietf-pwe3-iana-allocation-03.txt March 2004 0x0008 SONET/SDH Circuit Emulation Service Over MPLS (CEM) [Note1] 0x0009 ATM n-to-one VCC cell transport 0x000A ATM n-to-one VPC cell transport 0x000B IP Layer2 Transport 0x000C ATM one-to-one VCC Cell Mode 0x000D ATM one-to-one VPC Cell Mode 0x000E ATM AAL5 PDU VCC transport 0x000F Frame-Relay Port mode 0x0010 SONET/SDH Circuit Emulation over Packet (CEP) 0x0011 Structure-Agnostic TDM over Packet (SAToP) 0x0011 Structure-agnostic E1 over Packet (SAToP) 0x0012 Structure-agnostic T1 (DS1) over Packet (SAToP) 0x0013 Structure-agnostic E3 over Packet (SAToP) 0x0014 Structure-agnostic T3 (DS3) over Packet (SAToP) 0x0015 CESoPSN basic mode 0x0016 TDMoIP basic mode 0x0017 CESoPSN TDM with CAS 0x0018 TDMoIP TDM with CAS Note 1: This PW type is grandfathered for a historical protocol. The recommended standards-track protocol to use is CEP (PW type 0x0010). 3. Interface Parameters field As specified in [1], a PW FEC element contains the Interface Parameters field, which is a list of one or more parameters, and each parameter is identified by the Parameter ID field. Parameter ID value 0 is reserved. Parameter ID values 1 through 10 are defined in this document. Parameter ID values 11 through 63 are to be assigned by IANA using the "IETF Consensus" policy defined in RFC2434. Parameter ID values 64 through 127 are to be assigned by IANA, using the "First Come First Served" policy defined in RFC2434. Parameter ID values 128 through 255 are vendor- specific, and values in this range are not to be assigned by IANA. The interface parameter ID is assigned as follows: Parameter ID Length Description 0x01 4 Interface MTU in octets 0x02 4 Maximum Number of concatenated ATM cells 0x03 up to 82 Optional Interface Description string 0x04 4 CEP [8] Payload Bytes 0x05 4 CEP options 0x06 4 Requested VLAN ID 0x07 6 CEP/TDM bit-rate 0x08 4 Frame-Relay DLCI Length 0x09 4 Fragmentation indicator Martini & Townsley [Page 3] Internet Draft draft-ietf-pwe3-iana-allocation-03.txt March 2004 0x0A 4 FCS retension indicator Note that the Length field is defined as the length of the interface parameter including the parameter id and length field itself. 4. LDP Status codes RFC 3036 has a range of LDP Status Code values which are assigned by IANA through an IETF Consensus action. These are in the range 0x00000000-0x1fffffff. To meet the protocol requirements of [1], the following new status codes are defined: 0x00000024 "Illegal C-Bit" 0x00000025 "Wrong C-Bit" 0x00000026 "Incompatible bit-rate" 0x00000027 "CEP mis-configuration" 0x00000028 "PW status" RFC 3036 has a range of LTLV type name space values which are assigned by IANA through an IETF Consensus action. the following new code is defined : TLV type Description 0x096A PW Status TLV 5. Pseudo Wire Status" As specified in [1], a new PW status TLV contains a 32 bit field, PW status value 0 is reserved to clear all failures. PW Status Bits 0 through 4 are defined in this document. PW Status Bits 6 through 15 are to be assigned by IANA using the "IETF Consensus" policy defined in RFC2434. PW Status Bits 16 through 23 are to be assigned by IANA, using the "First Come First Served" policy defined in RFC2434. PW Status Bits 24 through 31 are vendor-specific, and values in this range are not to be assigned by IANA. PW status is a 4 octet bit field as follows: 0x00000000 - Pseudo Wire forwarding ( clear all failures ) 0x00000001 - Pseudo Wire Not Forwarding 0x00000002 - Local Attachement Circuit ( ingress ) Receive Fault 0x00000004 - Local Attachement Circuit ( egress ) Transmit Fault 0x00000008 - Local PSN-facing PW ( ingress ) Receive Fault 0x00000010 - Local PSN-facing PW ( egress ) Transmit Fault Martini & Townsley [Page 4] Internet Draft draft-ietf-pwe3-iana-allocation-03.txt March 2004 6. Security Considerations This document specifies only fixed identifiers, and not the protocols used to carry the encapsulated packets across the network. Each such protocol may have its own set of security issues, but those issues are not affected by the identifiers specified herein. 7. Intellectual Property Disclaimer This document is being submitted for use in IETF standards discussions. 8. References [1] "Transport of Layer 2 Frames Over MPLS", draft-ietf-pwe3- control-protocol-05.txt. ( work in progress ) [2] "SONET/SDH Circuit Emulation over Packet (CEP)", draft-ietf- pwe3-sonet-03.txt (work in progress). 9. Author Information Luca Martini Cisco Systems, Inc. 9155 East Nichols Avenue, Suite 400 Englewood, CO, 80112 e-mail: lmartini@cisco.com W. Mark Townsley Cisco Systems 7025 Kit Creek Road PO Box 14987 Research Triangle Park, NC 27709 e-mail: mark@townsley.net Martini & Townsley [Page 5]