Internet Assigned Numbers Authority Pseudowire Name Spaces (PWE3) Created 2005-12-12 Last Updated 2022-12-01 Available Formats [IMG] XML [IMG] HTML [IMG] Plain text Registries included below * MPLS Pseudowire Types Registry * Pseudowire Interface Parameters Sub-TLV type Registry * Attachment Individual Identifier Type Registry * Attachment Group Identifier (AGI) Type Registry * Pseudowire Status Codes Registry * Pseudowire Associated Channel Types * Associated Channel Header TLV Registry (DELETED) * Header Compression Over MPLS PW Control Word Packet Type * MPLS VCCV Control Channel (CC) Types * MPLS VCCV Connectivity Verification (CV) Types * Pseudowire Switching Point PE sub-TLV Type * CC/CV MEP-ID TLV Registry * PW Generic Protocol Flags * L2VPN PE Stack Capabilities * G-ACh Advertisement Protocol Application Registry * G-ACh Advertisement Protocol TLV Registry * G-ACh Advertisement Protocol: Ethernet Interface Parameters * VCCV Extended CV Types * ICC RG Parameter Types * PSN Tunnel Sub-TLV Name Space * PW Status Refresh Reduction Control Messages * PW Status Refresh Reduction Configuration Message Sub-TLVs * PW Status Refresh Reduction Notification Codes * PW Status Refresh Reduction Message Flags MPLS Pseudowire Types Registry Expert(s) Stewart Bryant, Andrew Malis, Matthew Bocci Reference [RFC4446] Note When this registry is modified, the YANG module [iana-pseudowire-types] must be updated as defined in [RFC9291]. Available Formats [IMG] CSV Range Registration Procedures Note 31-1024 Expert Review 1025-4096 IETF Review 4097-32766 First Come First Served reserved for vendor proprietary extensions 32767 IETF Review PW Type Description Reference 0x0001 Frame Relay DLCI ( Martini Mode ) [RFC4619] 0x0002 ATM AAL5 SDU VCC transport [RFC4717] 0x0003 ATM transparent cell transport [RFC4717] 0x0004 Ethernet Tagged Mode [RFC4448] 0x0005 Ethernet [RFC4448] 0x0006 HDLC [RFC4618] 0x0007 PPP [RFC4618] 0x0008 SONET/SDH Circuit Emulation Service Over MPLS [RFC5143] Encapsulation 0x0009 ATM n-to-one VCC cell transport [RFC4717] 0x000A ATM n-to-one VPC cell transport [RFC4717] 0x000B IP Layer2 Transport [RFC3032] 0x000C ATM one-to-one VCC Cell Mode [RFC4717] 0x000D ATM one-to-one VPC Cell Mode [RFC4717] 0x000E ATM AAL5 PDU VCC transport [RFC4717] 0x000F Frame-Relay Port mode [RFC4619] 0x0010 SONET/SDH Circuit Emulation over Packet [RFC4842] 0x0011 Structure-agnostic E1 over Packet [RFC4553] 0x0012 Structure-agnostic T1 (DS1) over Packet [RFC4553] 0x0013 Structure-agnostic E3 over Packet [RFC4553] 0x0014 Structure-agnostic T3 (DS3) over Packet [RFC4553] 0x0015 CESoPSN basic mode [RFC5086] 0x0016 TDMoIP AAL1 Mode [RFC5087] 0x0017 CESoPSN TDM with CAS [RFC5086] 0x0018 TDMoIP AAL2 Mode [RFC5087] 0x0019 Frame Relay DLCI [RFC4619] 0x001A ROHC Transport Header-compressed Packets [RFC5795][RFC4901] 0x001B ECRTP Transport Header-compressed Packets [RFC3545][RFC4901] 0x001C IPHC Transport Header-compressed Packets [RFC2507][RFC4901] 0x001D cRTP Transport Header-compressed Packets [RFC2508][RFC4901] 0x001E ATM VP Virtual Trunk ["The Use of Virtual Trunks for ATM/MPLS Control Plane Interworking Specification", MFA Forum 9.0.0, MFA Forum, February 2006.] 0x001F FC Port Mode [RFC6307] 0x0020-0x1000 Unassigned 0x1001 Proprietary pseudowire implementation carrying CLNP [Christian_Schmutzer] packets 0x1002-0x7FFE Unassigned 0x7FFF Wildcard [RFC4863] Pseudowire Interface Parameters Sub-TLV type Registry Expert(s) Stewart Bryant, Andrew Malis, Matthew Bocci Reference [RFC4446] Available Formats [IMG] CSV Range Registration Procedures Note 2-64 Expert Review 65-127 IETF Review 128-254 First Come First Served reserved for vendor proprietary extensions 255 IETF Review Parameter ID Length Description Reference 0x01 4 Interface MTU in octets [RFC8077] 0x02 4 Maximum Number of concatenated ATM cells [RFC4717] 0x03 up to 82 Optional Interface Description string [RFC8077] 0x04 4 CEP/TDM Payload Bytes [RFC4842] 0x05 4 CEP options [RFC4842] 0x06 4 Requested VLAN ID [RFC4448] 0x07 6 CEP/TDM bit-rate [RFC4842] 0x08 4 Frame-Relay DLCI Length [RFC4619] 0x09 4 Fragmentation indicator [RFC4623] 0x0A 4 FCS retention indicator [RFC4720] 0x0B 4/8/12 TDM options [RFC5287] 0x0C 4 VCCV parameter [RFC5085] 0x0D up to 256 bytes ROHC over MPLS configuration [RFC3241] [RFC4901] 0x0E 4 Number of TDMoIP AAL1 cells per packet [RFC5287] 0x0F up to 256 bytes CRTP/ECRTP/IPHC HC over MPLS configuration [RFC3544] [RFC4901] 0x10 4 TDMoIP AAL1 mode [RFC5287] 0x11 8 or more TDMoIP AAL2 Options [RFC5287] 0x12 Reserved [RFC6307] 0x13 Reserved [RFC6307] 0x14 Reserved [RFC6307] 0x15 Reserved [RFC6307] 0x16 4 Stack capability [RFC6575] 0x17 4 Flow Label [RFC6391] 0x18 4 PW Generic Protocol Flags [RFC6478] 0x19 variable VCCV Extended CV Parameter [RFC7189] 0x1A 8 E-Tree [RFC7796] 0x1B variable Selective Tree Interface Parameter [RFC8338] 0x1C-0xFC Unassigned 0xFD up to 8 Zte optional Supplier private interface parameters [Zhu_Wei] 0xFE-0xFF Unassigned Attachment Individual Identifier Type Registry Expert(s) Stewart Bryant, Andrew Malis, Matthew Bocci Reference [RFC4446] Available Formats [IMG] CSV Range Registration Procedures Note 2-64 Expert Review 65-127 IETF Review 128-254 First Come First Served reserved for vendor proprietary extensions 255 IETF Review AII Type Length Description Reference 0x01 4 A 32 bit unsigned number local [RFC6074] identifier 0x02 variable 8 or 12 Aggregate Identifier [RFC5003] 0x03 variable 1 to 33 ATM/FR Control Channel ["ATM and Frame Relay to MPLS Control Plane Interworking: Client-Server", MFA Forum 10.0.0, MFA Forum, September 2006.] 0x04 variable 3 to 35 ATM/FR Signaling Call Reference ["ATM and Frame Relay to MPLS Control Plane Interworking: Client-Server", MFA Forum 10.0.0, MFA Forum, September 2006.] 0x05 variable 2 to 30 Frame Relay Port and Connection [Soft Permanent Virtual Circuit Interworking between MPLS Pseudowires and ATM, MFA Identifier Forum, work in progress (this specification is at the baseline text stage).] 0x06 variable 2 to 30 ATM Port and Connection Identifier [Soft Permanent Virtual Circuit Interworking between MPLS Pseudowires and ATM, MFA Forum, work in progress (this specification is at the baseline text stage).] Attachment Group Identifier (AGI) Type Registry Expert(s) Stewart Bryant, Andrew Malis, Matthew Bocci Reference [RFC4446] Available Formats [IMG] CSV Range Registration Procedures Note 2-64 Expert Review 65-127 IETF Review 128-254 First Come First Served reserved for vendor proprietary extensions 255 IETF Review AGI Type Length Description Reference 0x01 8 Extended Community [RFC6074] Pseudowire Status Codes Registry Registration Procedure(s) Expert Review Expert(s) Stewart Bryant, Andrew Malis, Matthew Bocci Reference [RFC4446] Available Formats [IMG] CSV Bit Mask Description Reference 0x00000000 Pseudowire forwarding (clear all failures) [RFC8077][RFC4446] 0x00000001 Pseudowire Not Forwarding [RFC8077][RFC4446] 0x00000002 Local Attachment Circuit (ingress) Receive Fault [RFC8077][RFC4446] 0x00000004 Local Attachment Circuit (egress) Transmit Fault [RFC8077][RFC4446] 0x00000008 Local PSN-facing PW (ingress) Receive Fault [RFC8077][RFC4446] 0x00000010 Local PSN-facing PW (egress) Transmit Fault [RFC8077][RFC4446] 0x00000020 PW Preferential Forwarding Status [RFC6870] 0x00000040 PW Request Switchover Status [RFC6870] Pseudowire Associated Channel Types Reference [RFC4385][RFC5586][RFC Errata 1940][RFC7026][RFC7214] Note Renamed "MPLS Generalized Associated Channel (G-ACh) Types (including Pseudowire Associated Channel Types)" and moved to [https://www.iana.org/assignments/g-ach-parameters] per [RFC7214]. Associated Channel Header TLV Registry (DELETED) Reference [RFC5586][RFC7026] Note Registry deleted per [RFC7026]. Header Compression Over MPLS PW Control Word Packet Type Registration Procedure(s) Expert Review Reference [RFC4901] Available Formats [IMG] CSV Packet Type Description 0 ROHC Small-CIDs 1 ROHC Large-CIDs 2 FULL_HEADER 3 COMPRESSED_TCP 4 COMPRESSED_TCP_NODELTA 5 COMPRESSED_NON_TCP 6 COMPRESSED_RTP_8 7 COMPRESSED_RTP_16 8 COMPRESSED_UDP_8 9 COMPRESSED_UDP_16 10 CONTEXT_STATE 11-15 Unassigned MPLS VCCV Control Channel (CC) Types Registration Procedure(s) IETF Review Reference [RFC5085] Note Bit numbering: In this sub-registry, the most significant (high order) bit is labeled Bit 7, and the least significant (low order) bit is labeled Bit 0, see parenthetical "Value". Available Formats [IMG] CSV Bit (Value) Description Reference 0 (0x01) Type 1: PWE3 Control Word with 0001b as first nibble (PW-ACH, see [RFC4385]) [RFC5085] 1 (0x02) Type 2: MPLS Router Alert Label [RFC5085] 2 (0x04) Type 3: MPLS PW Label with TTL == 1 [RFC5085] 3 (0x08) Type 4: GAL [RFC7708] 4 (0x10) Reserved [RFC5085] 5 (0x20) Reserved [RFC5085] 6 (0x40) Reserved [RFC5085] 7 (0x80) Reserved [RFC5085] MPLS VCCV Connectivity Verification (CV) Types Registration Procedure(s) IETF Review Reference [RFC5085] Note Bit numbering: In this sub-registry, the most significant (high order) bit is labeled Bit 7, and the least significant (low order) bit is labeled Bit 0, see parenthetical "Value". Available Formats [IMG] CSV Bit (Value) Description Reference 0 (0x01) ICMP Ping [RFC5085] 1 (0x02) LSP Ping [RFC5085] 2 (0x04) BFD IP/UDP-encapsulated, for PW Fault Detection only [RFC5885] 3 (0x08) BFD IP/UDP-encapsulated, for PW Fault Detection and AC/PW Fault Status Signaling [RFC5885] 4 (0x10) BFD PW-ACH-encapsulated, for PW Fault Detection only [RFC5885] 5 (0x20) BFD PW-ACH-encapsulated, for PW Fault Detection and AC/PW Fault Status Signaling [RFC5885] 6 (0x40) S-BFD IP/UDP-encapsulated, for PW Fault Detection only [RFC7885] 7 (0x80) S-BFD PW-ACH-encapsulated, for PW Fault Detection only [RFC7885] Pseudowire Switching Point PE sub-TLV Type Expert(s) Primary: Stewart Bryant; secondary: Matthew Bocci Reference [RFC6073] Available Formats [IMG] CSV Range Registration Procedures Note 0 IETF Review 1-64 Expert Review 65-127 IETF Review 128-254 First Come First Served reserved for vendor proprietary extensions 255 IETF Review Type Length Description Reference 0x00 Unassigned 0x01 4 PWid of last PW segment traversed [RFC6073] 0x02 variable PW Switching Point description string [RFC6073] 0x03 4/16 Local IP address of PW Switching Point [RFC6073] 0x04 4/16 Remote IP address of last PW Switching Point traversed or of the T-PE [RFC6073] 0x05 variable FEC Element of last PW segment traversed [RFC6073] 0x06 14 L2 PW address of PW Switching Point [RFC6073][RFC7267] 0x07 24 Static PW/MPLS-TP PW segment ID of last PW segment traversed [RFC6478] 0x08-0xFF Unassigned CC/CV MEP-ID TLV Registry Reference [RFC6428][RFC7214] Note Moved to [https://www.iana.org/assignments/g-ach-parameters] per [RFC7214]. PW Generic Protocol Flags Registration Procedure(s) IETF Review Reference [RFC6478] Available Formats [IMG] CSV Bit (Value) Description Reference 0 (0x0001) S-PE bypass mode [RFC6478] 1-15 (0x0002-0x8000) Unassigned L2VPN PE Stack Capabilities Registration Procedure(s) IETF Review Reference [RFC6575] Available Formats [IMG] CSV Bit (Value) Description Reference 0 (0x0001) IPv6 stack capability [RFC6575] 1-15 (0x0002-0x8000) Unassigned G-ACh Advertisement Protocol Application Registry Reference [RFC7212][RFC7214] Note Moved to [https://www.iana.org/assignments/g-ach-parameters] per [RFC7214]. G-ACh Advertisement Protocol TLV Registry Reference [RFC7212][RFC7214] Note Moved to [https://www.iana.org/assignments/g-ach-parameters] per [RFC7214]. G-ACh Advertisement Protocol: Ethernet Interface Parameters Reference [RFC7213][RFC7214] Note Moved to [https://www.iana.org/assignments/g-ach-parameters] per [RFC7214]. VCCV Extended CV Types Registration Procedure(s) IETF Review Reference [RFC7189] Available Formats [IMG] CSV Bit (Value) Description Reference Bit 0 (0x01) Independent mode for PW Fault Detection only [RFC7189] Bit 1 (0x02) Independent mode for PW Fault Detection and AC/PW Fault Status Signaling [RFC7189] Bit 2 (0x04) Coordinated mode for PW Fault Detection only [RFC7189] Bit 3 (0x08) Coordinated mode for PW Fault Detection and AC/PW Fault Status Signaling [RFC7189] Bit 4-7 (0x10-0x80) Unassigned ICC RG Parameter Types Expert(s) Stewart Bryant, Matthew Bocci Reference [RFC7275] Available Formats [IMG] CSV Range Registration Procedures Note 0x0000 IETF Review 0x003B-0x1FFF Expert Review 0x2000-0x2FFF IETF Review 0x3000-0x3FFE First Come First Served Vendor Proprietary Extensions 0x3FFF IETF Review Type Description Reference 0x0000 Unassigned 0x0001 ICC Sender Name [RFC7275] 0x0002 NAK TLV [RFC7275] 0x0003 Requested Protocol Version TLV [RFC7275] 0x0004 Disconnect Code TLV [RFC7275] 0x0005 ICC RG ID TLV [RFC7275] 0x0006-0x000F Reserved [RFC7275] 0x0010 PW-RED Connect TLV [RFC7275] 0x0011 PW-RED Disconnect TLV [RFC7275] 0x0012 PW-RED Config TLV [RFC7275] 0x0013 Service Name TLV [RFC7275] 0x0014 PW ID TLV [RFC7275] 0x0015 Generalized PW ID TLV [RFC7275] 0x0016 PW-RED State TLV [RFC7275] 0x0017 PW-RED Synchronization Request TLV [RFC7275] 0x0018 PW-RED Synchronization Data TLV [RFC7275] 0x0019 PW-RED Disconnect Cause TLV [RFC7275] 0x001A-0x002F Reserved [RFC7275] 0x0030 mLACP Connect TLV [RFC7275] 0x0031 mLACP Disconnect TLV [RFC7275] 0x0032 mLACP System Config TLV [RFC7275] 0x0033 mLACP Port Config TLV [RFC7275] 0x0034 mLACP Port Priority TLV [RFC7275] 0x0035 mLACP Port State TLV [RFC7275] 0x0036 mLACP Aggregator Config TLV [RFC7275] 0x0037 mLACP Aggregator State TLV [RFC7275] 0x0038 mLACP Synchronization Request TLV [RFC7275] 0x0039 mLACP Synchronization Data TLV [RFC7275] 0x003A mLACP Disconnect Cause TLV [RFC7275] 0x003B-0x1FFF Unassigned 0x2000 STP Connect TLV [RFC7727] 0x2001 STP Disconnect TLV [RFC7727] 0x2002 STP System Config TLV [RFC7727] 0x2003 STP Region Name TLV [RFC7727] 0x2004 STP Revision Level TLV [RFC7727] 0x2005 STP Instance Priority TLV [RFC7727] 0x2006 STP Configuration Digest TLV [RFC7727] 0x2007 STP Topology Changed Instances TLV [RFC7727] 0x2008 STP CIST Root Time TLV [RFC7727] 0x2009 STP MSTI Root Time TLV [RFC7727] 0x200A STP Synchronization Request TLV [RFC7727] 0x200B STP Synchronization Data TLV [RFC7727] 0x200C STP Disconnect Cause TLV [RFC7727] 0x200D PON Connect TLV [RFC8024] 0x200E PON Disconnect TLV [RFC8024] 0x200F PON Configuration TLV [RFC8024] 0x2010 PON State TLV [RFC8024] 0x2011-0x3FFF Unassigned PSN Tunnel Sub-TLV Name Space Registration Procedure(s) IETF Review Reference [RFC7965] Available Formats [IMG] CSV Value Description Reference 0 Reserved [RFC7965] 1 IPv4 PSN Tunnel sub-TLV [RFC7965] 2 IPv6 PSN Tunnel sub-TLV [RFC7965] 3-254 Unassigned 255 Reserved [RFC7965] PW Status Refresh Reduction Control Messages Expert(s) Stewart Bryant, Andrew Malis Reference [RFC8237] Available Formats [IMG] CSV Range Registration Procedures 0x00 IETF Review 0x03-0x40 Expert Review 0x41-0x7F IETF Review 0x80-0xFE Expert Review 0xFF IETF Review Type Message Description Reference 0x00 Unassigned 0x01 Notification message [RFC8237] 0x02 PW Configuration Message [RFC8237] 0x03-0xFF Unassigned PW Status Refresh Reduction Configuration Message Sub-TLVs Expert(s) Stewart Bryant, Andrew Malis Reference [RFC8237] Available Formats [IMG] CSV Range Registration Procedures 0x00 IETF Review 0x04-0x40 Expert Review 0x41-0x7F IETF Review 0x80-0xFE Expert Review 0xFF IETF Review sub-TLV Type Description Reference 0x00 Unassigned 0x01 MPLS-TP Tunnel ID [RFC8237] 0x02 PW ID Configured List [RFC8237] 0x03 PW ID Unconfigured List [RFC8237] 0x04-0xFF Unassigned PW Status Refresh Reduction Notification Codes Expert(s) Stewart Bryant, Andrew Malis Reference [RFC8237] Available Formats [IMG] CSV Range Registration Procedures 0x00000000 IETF Review 0x00000008-0x00010000 Expert Review 0x00010001-0x08000000 IETF Review 0x08000001-0xFFFFFFFE Expert Review 0xFFFFFFFF IETF Review Code Error? Description Reference 0x00000000 No Null Notification [RFC8237] 0x00000001 No PW configuration mismatch [RFC8237] 0x00000002 Yes PW Configuration TLV conflict [RFC8237] 0x00000003 No Unknown TLV (U-Bit=1) [RFC8237] 0x00000004 Yes Unknown TLV (U-Bit=0) [RFC8237] 0x00000005 No Unknown Message Type [RFC8237] 0x00000006 No PW configuration not supported [RFC8237] 0x00000007 Yes Unacknowledged control message [RFC8237] 0x00000008-0xFFFFFFFF Unassigned PW Status Refresh Reduction Message Flags Registration Procedure(s) IETF Review Reference [RFC8237] Available Formats [IMG] CSV Bit Position Name Description Reference 0 Unknown flag bit [RFC8237] 1 Configuration flag bit [RFC8237] 2-7 Unassigned Contact Information ID Name Contact URI Last Updated [Christian_Schmutzer] Christian Schmutzer mailto:cschmutz&cisco.com 2022-03-29 [Zhu_Wei] Zhu Wei mailto:zhu.wei120&zte.com.cn 2016-05-09 Licensing Terms