Internet Assigned Numbers Authority Border Gateway Protocol (BGP) Extended Communities Created 2005-08-15 Last Updated 2024-11-27 Available Formats [IMG] XML [IMG] HTML [IMG] Plain text Registries included below • BGP Transitive Extended Community Types • BGP Non-Transitive Extended Community Types • EVPN Extended Community Sub-Types • Transitive Two-Octet AS-Specific Extended Community Sub-Types • Non-Transitive Two-Octet AS-Specific Extended Community Sub-Types • Transitive Four-Octet AS-Specific Extended Community Sub-Types • Non-Transitive Four-Octet AS-Specific Extended Community Sub-Types • Transitive IPv4-Address-Specific Extended Community Sub-Types • Non-Transitive IPv4-Address-Specific Extended Community Sub-Types • Transitive Opaque Extended Community Sub-Types • Non-Transitive Opaque Extended Community Sub-Types • Generic Transitive Extended Community Sub-Types • Generic Transitive Extended Community Part 2 Sub-Types • Generic Transitive Extended Community Part 3 Sub-Types • Traffic Action Fields • Transitive IPv6-Address-Specific Extended Community Types • Non-Transitive IPv6-Address-Specific Extended Community Types • Additional PMSI Tunnel Attribute Flags • EVPN Layer 2 Attributes Control Flags • E-Tree Flags • Layer2 Info Extended Community Control Flags Bit Vector • DF Alg • DF Election Capabilities • SFC Extended Community Sub-Types • ARP/ND Extended Community Flags • Multicast Flags Extended Community • Context-Specific Label Space ID Type • EVPN ESI Label Extended Community Flags • Multihoming Redundancy Mode • Split Horizon Type BGP Transitive Extended Community Types Reference [RFC7153][RFC9184] Note This registry contains values of the high-order octet (the "Type" field) of a Transitive Extended Community. Available Formats [IMG] CSV Range Registration Procedures Note 0x00-0x3f First Come First Served 0x80-0x82 First Come First Served see [RFC9184] 0x83-0x8f Reserved for Experimental Use see [RFC3692] 0x90-0xbf Standards Action Type Value Name Reference Date 0x00 Transitive Two-Octet AS-Specific Extended Community (Sub-Types are defined in the [RFC7153] "Transitive Two-octet AS-Specific Extended Community Sub-Types" registry) 0x01 Transitive IPv4-Address-Specific Extended Community (Sub-Types are defined in the [RFC7153] "Transitive IPv4-Address-Specific Extended Community Sub-Types" registry) 0x02 Transitive Four-Octet AS-Specific Extended Community (Sub-Types are defined in the [RFC7153] "Transitive Four-octet AS-Specific Extended Community Sub-Types" registry) 0x03 Transitive Opaque Extended Community (Sub-Types are defined in the "Transitive [RFC7153] Opaque Extended Community Sub-Types" registry) 0x04 QoS Marking [Thomas_Martin_Knoll] 2008-12-30 0x05 CoS Capability [Thomas_Martin_Knoll] 2009-05-18 0x06 EVPN (Sub-Types are defined in the "EVPN Extended Community Sub-Types" registry) [RFC7153] 0x07 FlowSpec Transitive Extended Communities [draft-ietf-idr-flowspec-interfaceset] 2017-03-16 0x08 Flow spec redirect/mirror to IP next-hop [draft-simpson-idr-flowspec-redirect] 2012-09-28 0x09 FlowSpec Redirect to indirection-id Extended Community [draft-ietf-idr-flowspec-path-redirect] 2018-05-18 0x0a Transport Class [draft-ietf-idr-bgp-ct-30] 2020-07-01 0x0b SFC (Sub-Types are defined in the "SFC Extended Community Sub-Types" registry) [RFC9015] 2020-09-02 0x0c SRv6 MUP Extended Community [draft-mpmz-bess-mup-safi-00] 2022-08-10 0x0d-0x3f Unassigned 0x80 Generic Transitive Extended Community (Sub-Types are defined in the "Generic [RFC7153][RFC9184] Transitive Extended Community Sub-Types" registry) 0x81 Generic Transitive Extended Community Part 2 (Sub-Types are defined in the [RFC8955][RFC9184] 2015-08-28 "Generic Transitive Extended Community Part 2 Sub-Types" registry) 0x82 Generic Transitive Extended Community Part 3 (Sub-Types are defined in the [RFC8955][RFC9184] 2015-08-28 "Generic Transitive Extended Community Part 3 Sub-Types" registry) 0x83-0x8f Reserved for Experimental Use [RFC7153] 2012-09-28 0x90-0xbf Unassigned BGP Non-Transitive Extended Community Types Reference [RFC7153] Note This registry contains values of the high-order octet (the "Type" field) of a Non-transitive Extended Community. Available Formats [IMG] CSV Range Registration Procedures Note 0x40-0x7f First Come First Served 0xc0-0xcf Reserved for Experimental Use see [RFC3692] 0xd0-0xff Standards Action Type Value Name Reference Date 0x40 Non-Transitive Two-Octet AS-Specific Extended Community (Sub-Types are defined in [RFC7153] the "Non-Transitive Two-octet AS-Specific Extended Community Sub-Types" registry) 0x41 Non-Transitive IPv4-Address-Specific Extended Community (Sub-Types are defined in [RFC7153] the "Non-Transitive IPv4-Address-Specific Extended Community Sub-Types" registry) 0x42 Non-Transitive Four-Octet AS-Specific Extended Community (Sub-Types are defined in [RFC7153] the "Non-Transitive Four-octet AS-Specific Extended Community Sub-Types" registry) 0x43 Non-Transitive Opaque Extended Community (Sub-Types are defined in the [RFC7153] "Non-Transitive Opaque Extended Community Sub-Types" registry) 0x44 QoS Marking [Thomas_Martin_Knoll] 2008-12-30 0x45-0x46 Unassigned 0x47 FlowSpec Non-Transitive Extended Communities [draft-ietf-idr-flowspec-interfaceset] 2016-03-16 0x48-0x49 Unassigned 0x4a Non-Transitive Transport Class [draft-ietf-idr-bgp-ct-30] 2020-07-01 0x4b-0x7f Unassigned 0xc0-0xcf Reserved for Experimental Use [RFC7153] 2012-09-28 0xd0-0xff Unassigned EVPN Extended Community Sub-Types Reference [RFC7153] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x06. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00 MAC Mobility [RFC7432] 2012-07-11 0x01 ESI Label [RFC7432] 2012-07-11 0x02 ES-Import Route Target [RFC7432] 2012-07-11 0x03 EVPN Router’s MAC Extended Community [RFC9135] 2014-09-23 0x04 EVPN Layer 2 Attributes [RFC8214] 2016-05-11 0x05 E-Tree Extended Community [RFC8317] 2016-05-11 0x06 DF Election Extended Community [RFC8584][RFC-ietf-bess-evpn-pref-df-13] 2016-05-11 0x07 I-SID Extended Community [draft-sajassi-bess-evpn-virtual-eth-segment] 2016-05-11 0x08 ARP/ND Extended Community [RFC9047] 2017-01-10 0x09 Multicast Flags Extended Community [RFC9251] 2017-11-06 0x0A EVI-RT Type 0 [RFC9251] 2017-11-06 0x0B EVI-RT Type 1 [RFC9251] 2018-06-06 0x0C EVI-RT Type 2 [RFC9251] 2018-06-06 0x0D EVI-RT Type 3 [RFC9251] 2018-06-26 0x0E EVPN Attachment Circuit Extended Community [draft-sajassi-bess-evpn-ac-aware-bundling] 2019-01-23 0x0F Service Carving Timestamp [RFC-ietf-bess-evpn-fast-df-recovery-12] 2020-05-29 0x10 EVPN Link Bandwidth Extended Community [draft-ietf-bess-evpn-unequal-lb-15] 2022-03-11 0x11-0x14 Unassigned 0x15 RT-derived-EC [draft-zzhang-idr-rt-derived-community-00] 2021-03-09 0x16-0xFF Unassigned Transitive Two-Octet AS-Specific Extended Community Sub-Types Reference [RFC7153] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x00. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00-0x01 Unassigned 0x02 Route Target [RFC4360] 0x03 Route Origin [RFC4360] 0x04 Juniper Transitive Link Bandwidth [Jeffrey_Haas] 2023-04-25 0x05 OSPF Domain Identifier [RFC4577] 0x06 Route Aggregation Parameter [Enke_Chen] 2023-07-31 0x07 Unassigned 0x08 BGP Data Collection [RFC4384] 0x09 Source AS [RFC6514] 0x0a L2VPN Identifier [RFC6074] 0x0b-0x0f Unassigned 0x10 Cisco VPN-Distinguisher [Eric_Rosen] 2012-04-10 0x11-0x12 Unassigned 0x13 Route-Target Record [draft-ietf-bess-service-chaining] 2016-08-29 0x14 Unassigned 0x15 RT-derived-EC [draft-zzhang-idr-rt-derived-community-00] 2021-03-09 0x16-0x7f Unassigned 0x80 Virtual-Network Identifier Extended Community [Manju_Ramesh] 2019-06-19 0x81-0xff Unassigned Non-Transitive Two-Octet AS-Specific Extended Community Sub-Types Reference [RFC7153] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x40. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00-0x03 Unassigned 0x04 Link Bandwidth [draft-ietf-idr-link-bandwidth-07] 0x05-0x7f Unassigned 0x80 Virtual-Network Identifier Extended Community [draft-drao-bgp-l3vpn-virtual-network-overlays] 2015-09-29 0x81-0xff Unassigned Transitive Four-Octet AS-Specific Extended Community Sub-Types Reference [RFC7153] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x02. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00-0x01 Unassigned 0x02 Route Target [RFC5668] 0x03 Route Origin [RFC5668] 0x04 Generic (deprecated) [draft-ietf-idr-as4octet-extcomm-generic-subtype] 0x05 OSPF Domain Identifier [RFC4577] 0x06 Route Aggregation Parameter [Enke_Chen] 2023-07-31 0x07 Unassigned 0x08 BGP Data Collection [RFC4384] 0x09 Source AS [RFC6514] 0x0a-0x0f Unassigned 0x10 Cisco VPN Identifier [Eric_Rosen] 2012-04-10 0x11-0x12 Unassigned 0x13 Route-Target Record [draft-ietf-bess-service-chaining] 2016-08-29 0x14 Unassigned 0x15 RT-derived-EC [draft-zzhang-idr-rt-derived-community-00] 2021-03-09 0x16-0xff Unassigned Non-Transitive Four-Octet AS-Specific Extended Community Sub-Types Reference [RFC7153] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x42. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00-0x03 Unassigned 0x04 Generic (deprecated) [draft-ietf-idr-as4octet-extcomm-generic-subtype] 0x05-0xff Unassigned Transitive IPv4-Address-Specific Extended Community Sub-Types Reference [RFC7153] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x01. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00 Unassigned (deprecated) 2014-01-08 0x01 Unassigned 0x02 Route Target [RFC4360] 0x03 Route Origin [RFC4360] 0x04 IPv4-Address-Specific IFIT Tail Community [draft-wang-idr-bgp-ifit-capabilities-02] 2021-06-02 0x05 OSPF Domain Identifier [RFC4577] 0x06 Unassigned 0x07 OSPF Route ID [RFC4577] 0x08 Unassigned 0x09 Node Target Extended Community [draft-ietf-idr-node-target-ext-comm-01] 2021-06-11 0x0a L2VPN Identifier [RFC6074] 0x0b VRF Route Import [RFC6514] 0x0c Flow-spec Redirect to IPv4 [draft-ietf-idr-flowspec-redirect] 2016-03-22 0x0d-0x0f Unassigned 0x10 Cisco VPN-Distinguisher [Eric_Rosen] 2012-04-10 0x11 Unassigned 0x12 Inter-Area P2MP Segmented Next-Hop [RFC7524] 2014-01-08 0x13 Route-Target Record [draft-ietf-bess-service-chaining] 2016-08-29 0x14 VRF-Recursive-Next-Hop-Extended-Community [Dhananjaya_Rao] 2020-08-04 0x15 RT-derived-EC [draft-zzhang-idr-rt-derived-community-00] 2021-03-09 0x16-0x1f Unassigned 0x20 MVPN SA RP-address Extended Community [RFC9081] 2018-03-26 0x21-0xff Unassigned Non-Transitive IPv4-Address-Specific Extended Community Sub-Types Reference [RFC7153] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x41. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00-0x08 Unassigned 0x09 Node Target Extended Community [draft-ietf-idr-node-target-ext-comm-01] 2021-06-11 0x0a-0xff Unassigned Transitive Opaque Extended Community Sub-Types Reference [RFC7153] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x03. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00 Unassigned (deprecated) 2007-02-20 0x01 Cost Community [draft-ietf-idr-custom-decision] 2014-07-15 0x02 Unassigned (deprecated) 2007-02-20 0x03 CP-ORF [RFC7543] 2014-09-24 0x04 Extranet Source Extended Community [RFC7900] 2016-04-28 0x05 Extranet Separation Extended Community [RFC7900] 2016-04-28 0x06 OSPF Route Type [RFC4577] 0x07 Additional PMSI Tunnel Attribute Flags [RFC7902] 2016-05-12 0x08 Context-Specific Label Space ID Extended Community [RFC9573] 2019-01-23 0x09-0x0a Unassigned 0x0b Color Extended Community [RFC9012] 0x0c Encapsulation Extended Community [RFC9012] 0x0d Default Gateway [Yakov_Rekhter] 2012-07-10 0x0e Point-to-Point-to-Multipoint (PPMP) Label [Rishabh_Parekh] 2016-01-19 0x0f BGP Group Policy Class Tag Extended Community [Dhananjaya_Rao] 2022-10-26 0x10 Site Identifier Extended Community [Renato_Fischer] 2024-08-30 0x11-0x13 Unassigned 0x14 Consistent Hash Sort Order [draft-ietf-bess-service-chaining] 2016-05-11 0x15-0x16 Unassigned 0x17 Group Policy ID Extended Community [draft-wlin-bess-group-policy-id-extended-community-02] 2022-11-07 0x18-0x1a Unassigned 0x1b Local Color Mapping (LCM) [draft-ietf-idr-bgp-car-05] 2023-03-17 0x18-0xa9 Unassigned 0xaa LoadBalance [draft-ietf-bess-service-chaining] 2017-11-01 0xab-0xff Unassigned Non-Transitive Opaque Extended Community Sub-Types Reference [RFC7153] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x43. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00 BGP Origin Validation State Extended Community [RFC8097] 0x01 Cost Community [draft-ietf-idr-custom-decision] 2014-07-15 0x02 Route Target [Nischal_Sheth] 2019-05-17 0x03-0x14 Unassigned 0x15 RT-derived-EC [draft-zzhang-idr-rt-derived-community-00] 2021-03-09 0x16-0xff Unassigned Generic Transitive Extended Community Sub-Types Reference [RFC7153][RFC9184] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x80. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Name Reference Date Value 0x00 OSPF Route Type [RFC4577] 2014-08-01 (deprecated) 0x01 OSPF Router ID [RFC4577] 2014-08-01 (deprecated) 0x02-0x03 Unassigned 0x04 SecurityGroup [Anantharamu_Suryanarayana][https://github.com/Juniper/contrail-controller/wiki/BGP-Extended-Communities#security-group] 2018-10-01 OSPF Domain 0x05 Identifier [RFC4577] 2014-08-01 (deprecated) 0x06 Flow spec [RFC8955] traffic-rate-bytes Flow spec traffic-action (Use 0x07 of the "Value" field [RFC8955] is defined in the "Traffic Action Fields" registry) Flow spec 0x08 rt-redirect [RFC8955] AS-2octet format 0x09 Flow spec [RFC8955] traffic-remarking 0x0a Layer2 Info Extended [RFC4761] Community 0x0b E-Tree Info [RFC7796] 2014-11-24 0x0c Flow spec [RFC8955] 2020-08-05 traffic-rate-packets 0x0d Flow Specification [RFC9015] 2020-09-02 for SFC Classifiers 0x0e-0x83 Unassigned 0x84 Tag [Anantharamu_Suryanarayana][https://github.com/Juniper/contrail-controller/wiki/BGP-Extended-Communities#tag] 2017-10-30 0x85 Origin Sub-Cluster [Richard_Roberts][https://github.com/robric/wiki-contrail-controller/blob/master/BGP-Extended-Communities.md] 2019-09-03 0x86-0xff Unassigned Generic Transitive Extended Community Part 2 Sub-Types Reference [RFC8955][RFC9184] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x81. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Value Name Reference Date 0x00-0x07 Unassigned 0x08 Flow spec rt-redirect IPv4 format [RFC8955] 2015-08-28 0x09-0xff Unassigned Generic Transitive Extended Community Part 3 Sub-Types Reference [RFC8955][RFC9184] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is 0x82. Available Formats [IMG] CSV Range Registration Procedures 0x00-0xbf First Come First Served 0xc0-0xff IETF Review Sub-Type Name Reference Date Value 0x00-0x03 Unassigned 0x04 SecurityGroupAS4 [Anantharamu_Suryanarayana][https://github.com/Juniper/contrail-controller/wiki/BGP-Extended-Communities#security-group] 2018-10-01 0x05-0x07 Unassigned Flow spec 0x08 rt-redirect [RFC8955] 2015-08-28 AS-4octet format 0x09-0x83 Unassigned 0x84 Tag4 [Anantharamu_Suryanarayana][https://github.com/Juniper/contrail-controller/wiki/BGP-Extended-Communities#tag] 2018-10-01 0x85 Origin [Richard_Roberts][https://github.com/robric/wiki-contrail-controller/blob/master/BGP-Extended-Communities.md] 2019-09-03 Sub-Cluster4 0x86-0xff Unassigned Traffic Action Fields Registration Procedure(s) IETF Review Reference [RFC8955] Note Bit 0 is the most significant, or leftmost bit of the six-byte field; bit 47 is the least significant, or rightmost bit. Available Formats [IMG] CSV Bit Name Reference Date 47 Terminal Action [RFC8955] 46 Sample [RFC8955] 0-45 Unassigned Transitive IPv6-Address-Specific Extended Community Types Registration Procedure(s) First Come First Served Reference [RFC7153] Note This registry contains values of the two high-order octets of an IPv6-Address-Specific Extended Community. Available Formats [IMG] CSV Type Value Name Reference Date 0x0000-0x0001 Unassigned 0x0002 Route Target [RFC5701] 0x0003 Route Origin [RFC5701] 0x0004 OSPFv3 Route Attributes (deprecated) [RFC6565] 0x0005 IPv6-Address-Specific IFIT Tail Community [draft-wang-idr-bgp-ifit-capabilities-02] 2021-06-02 0x0006 Extension of Link Bandwidth Extended Community [draft-li-idr-link-bandwidth-ext-01] 2024-04-22 0x0007-0x000a Unassigned 0x000b VRF Route Import [RFC6515][RFC6514] 0x000c Flow-spec Redirect to IPv6 [draft-ietf-idr-flowspec-redirect-ip] 2016-03-22 0x000d Flow spec rt-redirect-ipv6 format [RFC8956] 2020-12-14 0x000e-0x000f Unassigned 0x0010 Cisco VPN-Distinguisher [Eric_Rosen] 2012-04-10 0x0011 UUID-based Route Target [Dhananjaya_Rao] 2013-04-30 0x0012 Inter-Area P2MP Segmented Next-Hop [RFC7524] 2014-01-08 0x0013 Unassigned 0x0014 VRF-Recursive-Next-Hop-Extended-Community [Dhananjaya_Rao] 2020-08-04 0x0015 RT-derived-EC [draft-zzhang-idr-rt-derived-community-00] 2021-03-09 0x0016-0x00ff Unassigned Non-Transitive IPv6-Address-Specific Extended Community Types Registration Procedure(s) First Come First Served Reference [RFC7153] Note This registry contains values of the two high-order octets of an IPv6-Address-Specific Extended Community. Available Formats [IMG] CSV Type Value Name Reference Date 0x4000-0x40ff Unassigned Additional PMSI Tunnel Attribute Flags Registration Procedure(s) Standards Action Reference [RFC7902] Available Formats [IMG] CSV Bit Flag Name Reference Date 0-46 Unassigned 47 DCB [RFC9573] 2019-01-23 EVPN Layer 2 Attributes Control Flags Registration Procedure(s) RFC Required Reference [RFC8214] Available Formats [IMG] CSV Sub-Type Value Name Reference Date P Advertising PE is the primary PE. [RFC8214] 2017-06-15 B Advertising PE is the backup PE. [RFC8214] 2017-06-15 C Control word [RFC4448] MUST be present. [RFC8214] 2017-06-15 E-Tree Flags Registration Procedure(s) RFC Required Reference [RFC8317] Available Formats [IMG] CSV Bit Name Reference Date 0-6 Unassigned 7 Leaf-Indication [RFC8317] 2017-12-05 Layer2 Info Extended Community Control Flags Bit Vector Registration Procedure(s) IETF Review Reference [RFC8395] Available Formats [IMG] CSV Value Name Reference Date T Request to send a flow label [RFC8395] 2018-03-29 R Ability to receive a flow label [RFC8395] 2018-03-29 C Presence of a Control Word [RFC4761] 2018-03-29 S Sequenced delivery of frames [RFC4761] 2018-03-29 DF Alg Registration Procedure(s) RFC Required Reference [RFC8584] Available Formats [IMG] CSV Alg Name Reference Date 0 Default DF Election [RFC8584] 2019-02-01 1 HRW Algorithm [RFC8584] 2019-02-01 2 Highest-Preference Algorithm [RFC-ietf-bess-evpn-pref-df-13] 2023-11-05 3 Lowest-Preference Algorithm [RFC-ietf-bess-evpn-pref-df-13] 2023-11-05 4-30 Unassigned 31 Reserved for Experimental Use [RFC8584] 2019-02-01 DF Election Capabilities Registration Procedure(s) RFC Required Reference [RFC8584] Available Formats [IMG] CSV Bit Name Reference Date 0 D (Don't Preempt) Capability [RFC-ietf-bess-evpn-pref-df-13] 2023-11-05 1 AC-DF Capability [RFC8584] 2019-02-01 2 Unassigned 3 Time Synchronization [RFC-ietf-bess-evpn-fast-df-recovery-12] 2024-11-27 4-15 Unassigned SFC Extended Community Sub-Types Registration Procedure(s) First Come First Served Reference [RFC9015] Note This registry contains values of the second octet (the "Sub-Type" field) of an extended community when the value of the first octet (the "Type" field) is set to 0x0b. Available Formats [IMG] CSV Sub-Type Value Name Reference Date 0 Reserved [RFC9015] 1 SFIR Pool Identifier [RFC9015] 2020-09-02 2 MPLS Label Stack Mixed Swapping/Stacking Labels [RFC9015] 2020-09-02 3-255 Unassigned ARP/ND Extended Community Flags Registration Procedure(s) Standards Action Reference [RFC9047] Available Formats [IMG] CSV Flag Position Name Reference Date 0-3 Unassigned 4 Immutable ARP/ND Binding Flag (I) [RFC9047] 2021-04-09 5 Unassigned 6 Override Flag (O) [RFC9047] 2021-04-09 7 Router Flag (R) [RFC9047] 2021-04-09 Multicast Flags Extended Community Registration Procedure(s) First Come First Served Reference [RFC9251] Available Formats [IMG] CSV Bit Name Reference Change Controller Date 0-3 Unassigned 4 Single Flow Group [draft-ietf-bess-evpn-redundant-mcast-source-07] IETF 2023-12-22 5 SEMG (Seamless Interop EVPN Multicast Gateway) [draft-ietf-bess-evpn-mvpn-seamless-interop-03] IETF 2022-03-30 6 EVPN/MVPN Seamless Interop Supported [draft-ietf-bess-evpn-mvpn-seamless-interop-03] IETF 2022-03-30 7 OISM SBD [RFC9625] IETF 2022-03-30 8 Segmentation Support [RFC9572] IETF 2022-03-29 9 IPMG [RFC9625] IETF 2022-03-30 10 MEG [RFC9625] IETF 2022-03-30 11 PEG [RFC9625] IETF 2022-03-30 12 OISM-supported [RFC9625] IETF 2022-03-30 13 Extended-MH-AR [draft-ietf-bess-extended-evpn-optimized-ir-01] IETF 2022-07-08 14 MLD Proxy Support [RFC9251] IETF 2022-03-28 15 IGMP Proxy Support [RFC9251] IETF 2022-03-28 Context-Specific Label Space ID Type Registration Procedure(s) First Come First Served Reference [RFC9573] Available Formats [IMG] CSV Type Value Name Reference Change Controller Date 0 MPLS Label [RFC9573] IETF 2023-10-09 1-254 Unassigned 255 Reserved [RFC9573] EVPN ESI Label Extended Community Flags Registration Procedure(s) IETF Review Reference [RFC-ietf-bess-evpn-mh-split-horizon-11] Available Formats [IMG] CSV Bit Position Name Reference Date 0-1 Multihoming Redundancy Mode [RFC7432] 2024-09-09 2-5 Unassigned 6-7 Split Horizon Type [RFC-ietf-bess-evpn-mh-split-horizon-11] 2024-09-09 Multihoming Redundancy Mode Registration Procedure(s) IETF Review Reference [RFC-ietf-bess-evpn-mh-split-horizon-11] Available Formats [IMG] CSV Value Multihoming Redundancy Mode Reference Date 00 All-Active mode [RFC7432] 2024-09-09 01 Single-Active mode [RFC7432] 2024-09-09 10 Unassigned 11 Unassigned Split Horizon Type Registration Procedure(s) IETF Review Reference [RFC-ietf-bess-evpn-mh-split-horizon-11] Available Formats [IMG] CSV Value Split Horizon Type Value Reference Date 00 Default SHT [RFC-ietf-bess-evpn-mh-split-horizon-11] 2024-09-09 01 Local Bias [RFC-ietf-bess-evpn-mh-split-horizon-11] 2024-09-09 10 ESI Label based filtering [RFC-ietf-bess-evpn-mh-split-horizon-11] 2024-09-09 11 Unassigned Contact Information ID Name Contact URI Last Updated [Anantharamu_Suryanarayana] Anantharamu Suryanarayana mailto:anantharamu&gmail.com 2018-10-01 [Dhananjaya_Rao] Dhananjaya Rao mailto:dhrao&cisco.com 2022-10-26 [Enke_Chen] Enke Chen mailto:enchen&paloaltonetworks.com 2023-07-31 [Eric_Rosen] Eric Rosen mailto:erosen&cisco.com 2012-04-10 [Jeffrey_Haas] Jeffrey Haas mailto:jhaas&juniper.net 2023-04-25 [Nischal_Sheth] Nischal Sheth mailto:nischal.sheth&gmail.com 2019-05-17 [Manju_Ramesh] Manju Ramesh mailto:manjrame&cisco.com 2019-06-19 [Renato_Fischer] Renato Fischer mailto:reramalh&cisco.com 2024-08-30 [Richard_Roberts] Richard Roberts mailto:rroberts&juniper.net 2019-09-03 [Rishabh_Parekh] Rishabh Parekh mailto:rishabhp&gmail.com 2016-01-19 [Thomas_Martin_Knoll] Thomas Martin Knoll mailto:thomas.m.knoll&gmail.com 2015-01-25 [Yakov_Rekhter] Yakov Rekhter mailto:yakov&juniper.net 2012-07-10 Licensing Terms