Network Working Group Luca Martini
Internet Draft W. Mark Townsley
Expiration Date: April 2005 Cisco Systems Inc.
October 2004
IANA Allocations for pseudo Wire Edge to Edge Emulation (PWE3)
draft-ietf-pwe3-iana-allocation-07.txt
Status of this Memo
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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
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Table of Contents
1 Specification of Requirements .......................... 2
2 Pseudowire Type ........................................ 2
3 Interface Parameters field ............................. 3
4 Pseudo Wire Status ..................................... 4
5 Security Considerations ................................ 4
6 Full Copyright Statement ............................... 5
7 Intellectual Property Statement ........................ 5
8 Author Information ..................................... 6
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. Pseudowire Type
IANA needs to set up a registry of "Pseudowire Type". These are 15-
bit values. PW Type values 1 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. PW Type values 128 through
32767 are vendor-specific, and values in this range are not to be
assigned by IANA. A Pseudowire Type description of up to 65
characters is required for any assignment from this registry.
Initial Pseudowire type value allocations are specified below:
PW type Description
0x0001 Frame Relay DLCI ( Martini Mode )
0x0002 ATM AAL5 SDU VCC transport
0x0003 ATM transparent cell transport
0x0004 Ethernet Tagged Mode
0x0005 Ethernet
0x0006 HDLC
0x0007 PPP
0x0008 SONET/SDH Circuit Emulation Service Over MPLS (CEM) [Note1]
0x0009 ATM n-to-one VCC cell transport
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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 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
0x0019 Frame Relay DLCI
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
IANA needs to set up a registry of "Pseudowire Interface Parameter
Identifiers". Parameter ID values 1 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. Any assigments requested from this registry
require a description up to 54 characters. Furthermore a length
specifed as follows:
- A decimal integer
- Text as follows:"up to X", where X is a decimal integer
- Up to 3 different decimal integers.
is also required for assignment from this registry.
Initial Pseudowire Interface Parameter Identifier value
allocations are specified below:
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/TDM Payload Bytes
0x05 4 CEP options
0x06 4 Requested VLAN ID
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0x07 6 CEP/TDM bit-rate
0x08 4 Frame-Relay DLCI Length
0x09 4 Fragmentation indicator
0x0A 4 FCS retension indicator
0x0B 4/8/12 TDM options
0x0C 4 VCCV parameter
Note that the Length field is defined as the length of the interface
parameter including the parameter id and length field itself.
4. Pseudo Wire Status"
IANA needs to set up a registry of "Pseudowire Status Codes". These
are bitstrings of length 32. Status bits 1-15 are to be assigned by
IANA using the "IETF Consensus" policy defined in RFC2434. Initial
bit allocations are specified in "IANA Allocations for pseudo Wire
Edge to Edge Emulation (PWE3)" [IANA], and should be incorporated by
IANA into the registry. 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. Any requests
for allocation from this registry must include a 65 character
description. Initial Pseudowire Status Codes value allocations are
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
5. 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.
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6. Full Copyright Statement
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By submitting this Internet-Draft, I certify that any applicable
patent or other IPR claims of which I am aware have been disclosed,
or will be disclosed, and any of which I become aware will be
disclosed, in accordance with RFC 3668.
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8. 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
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