Internet Assigned Numbers Authority
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??About
Border Gateway Protocol (BGP) Extended Communities
Created
2005-08-15
Last Updated
2025-09-26
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
??Transitive Transport Class Extended Community Sub-Types
??Non-Transitive Transport Class Extended Community Sub-Types
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 [RFC7153]
the "Transitive Two-octet AS-Specific Extended Community Sub-Types" registry)
0x01 Transitive IPv4-Address-Specific Extended Community (Sub-Types are defined in [RFC7153]
the "Transitive IPv4-Address-Specific Extended Community Sub-Types" registry)
0x02 Transitive Four-Octet AS-Specific Extended Community (Sub-Types are defined in [RFC7153]
the "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" [RFC7153]
registry)
0x07 FlowSpec Transitive Extended Communities [draft-ietf-idr-flowspec-interfaceset-03] 2017-03-16
0x08 Flow spec redirect/mirror to IP next-hop [draft-simpson-idr-flowspec-redirect-01] 2012-09-28
0x09 FlowSpec Redirect to indirection-id Extended Community [draft-ietf-idr-flowspec-path-redirect-05] 2018-05-18
0x0a Transport Class [RFC9832] 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
Non-Transitive Two-Octet AS-Specific Extended Community (Sub-Types are defined
0x40 in the "Non-Transitive Two-octet AS-Specific Extended Community Sub-Types" [RFC7153]
registry)
Non-Transitive IPv4-Address-Specific Extended Community (Sub-Types are defined
0x41 in the "Non-Transitive IPv4-Address-Specific Extended Community Sub-Types" [RFC7153]
registry)
Non-Transitive Four-Octet AS-Specific Extended Community (Sub-Types are defined
0x42 in the "Non-Transitive Four-octet AS-Specific Extended Community Sub-Types" [RFC7153]
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-03] 2016-03-16
0x48-0x49 Unassigned
0x4a Non-Transitive Transport Class [RFC9832] 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 [RFC9135] 2014-09-23
Community
0x04 EVPN Layer 2 Attributes [RFC8214] 2016-05-11
0x05 E-Tree Extended Community [RFC8317] 2016-05-11
0x06 DF Election Extended Community [RFC8584][RFC9785] 2016-05-11
0x07 Reserved [Previously used in an early version of 2016-05-11
draft-sajassi-bess-evpn-virtual-eth-segment-01]
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 [draft-sajassi-bess-evpn-ac-aware-bundling-00] 2019-01-23
Community
0x0F Service Carving Time [RFC9722] 2020-05-29
0x10 EVPN Link Bandwidth Extended [draft-ietf-bess-evpn-unequal-lb-15] 2022-03-11
Community
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-00] 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-03] 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-10]
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-00] 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-10]
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-ip-02] 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-00] 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-04] 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-00] 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) [RFC-ietf-idr-bgp-car-16] 2023-03-17
0x18-0xa9 Unassigned
0xaa LoadBalance [draft-ietf-bess-service-chaining-05] 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-04] 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-02] 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
M Signaling mode of operation (bits 10-11) [RFC9744] 2024-12-20
V VLAN-ID normalization (bits 8-9) [RFC9744] 2024-12-20
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 [RFC9785] 2023-11-05
3 Lowest-Preference Algorithm [RFC9785] 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 [RFC9785] 2023-11-05
1 AC-DF Capability [RFC8584] 2019-02-01
2 Unassigned
3 Time Synchronization [RFC9722] 2024-11-27
4 Unassigned
5 Port Mode Designated Forwarder Election [RFC9786] 2024-12-12
6-15 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
0-2 Unassigned
3 EVPN to EVPN Gateway (EEG) [draft-rabnic-bess-evpn-mcast-eeg-05] IETF 2025-06-10
4 Single Flow Group [RFC9856] 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
[RFC9746]
Available Formats
[IMG]
CSV
Bit Position Name Reference Date
0-1 Multihoming Redundancy Mode [RFC7432] 2024-09-09
2-4 Unassigned
5 ESI-DCB [RFC9856] 2025-02-25
6-7 Split-Horizon Type [RFC9746] 2024-09-09
Multihoming Redundancy Mode
Registration Procedure(s)
IETF Review
Reference
[RFC9746]
Available Formats
[IMG]
CSV
Value Multihoming Redundancy Mode Reference Date
00 All-Active [RFC7432] 2024-09-09
01 Single-Active [RFC7432] 2024-09-09
10 Unassigned
11 Unassigned
Split-Horizon Type
Registration Procedure(s)
IETF Review
Reference
[RFC9746]
Available Formats
[IMG]
CSV
Value Split-Horizon Type Value Reference Date
00 Default SHT [RFC9746] 2024-09-09
01 Local Bias [RFC9746] 2024-09-09
10 ESI Label-based filtering [RFC9746] 2024-09-09
11 Unassigned
Transitive Transport Class Extended Community Sub-Types
Reference
[RFC9832]
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 0x0a.
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 [RFC9832] 2025-03-10
0x03-0xff Unassigned
Non-Transitive Transport Class Extended Community Sub-Types
Reference
[RFC9832]
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 0x4a.
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 [RFC9832] 2025-03-10
0x03-0xff 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
Presently we were in a very dark road, and at a point where it dropped suddenly between steep sides we halted in black shadow. A gleam of pale sand, a whisper of deep flowing waters, and a farther glimmer of more sands beyond them challenged our advance. We had come to a "grapevine ferry." The scow was on the other side, the water too shoal for the horses to swim, and the bottom, most likely, quicksand. Out of the blackness of the opposite shore came a soft, high-pitched, quavering, long-drawn, smothered moan of woe, the call of that snivelling little sinner the screech-owl. Ferry murmured to me to answer it and I sent the same faint horror-stricken tremolo back. Again it came to us, from not farther than one might toss his cap, and I followed Ferry down to the water's edge. The grapevine guy swayed at our side, we heard the scow slide from the sands, and in a few moments, moved by two videttes, it touched our shore. Soon we were across, the two videttes riding with us, and beyond a sharp rise, in an old opening made by the swoop of a hurricane, we entered the silent unlighted bivouac of Ferry's scouts. Ferry got down and sat on the earth talking with Quinn, while the sergeants quietly roused the sleepers to horse. Plotinus is driven by this perplexity to reconsider the whole theory of Matter.477 He takes Aristotle¡¯s doctrine as the groundwork of his investigation. According to this, all existence is divided into Matter and Form. What we know of things¡ªin other words, the sum of their differential characteristics¡ªis their Form. Take away this, and the unknowable residuum is their Matter. Again, Matter is the vague indeterminate something out of which particular Forms are developed. The two are related as Possibility to Actuality, as the more generic to the more specific substance through every grade of classification and composition. Thus there are two Matters, the one sensible and the other intelligible. The former constitutes the common substratum of bodies, the other the common element of ideas.478 The general distinction between Matter and Form was originally suggested to Aristotle by Plato¡¯s remarks on the same subject; but he differs325 from his master in two important particulars. Plato, in his Timaeus, seems to identify Matter with space.479 So far, it is a much more positive conception than the ?λη of the Metaphysics. On the other hand, he constantly opposes it to reality as something non-existent; and he at least implies that it is opposed to absolute good as a principle of absolute evil.480 Thus while the Aristotelian world is formed by the development of Power into Actuality, the Platonic world is composed by the union of Being and not-Being, of the Same and the Different, of the One and the Many, of the Limit and the Unlimited, of Good and Evil, in varying proportions with each other. The Lawton woman had heard of an officer's family at Grant, which was in need of a cook, and had gone there. [See larger version] On the 8th of July an extraordinary Privy Council was summoned. All the members, of whatever party, were desired to attend, and many were the speculations as to the object of their meeting. The general notion was that it involved the continuing or the ending of the war. It turned out to be for the announcement of the king's intended marriage. The lady selected was Charlotte, the second sister of the Duke of Mecklenburg-Strelitz. Apart from the narrowness of her education, the young princess had a considerable amount of amiability, good sense, and domestic taste. These she shared with her intended husband, and whilst they made the royal couple always retiring, at the same time they caused them to give, during their lives, a moral air to their court. On the 8th of September Charlotte arrived at St. James's, and that afternoon the marriage took place, the ceremony being performed by the Archbishop of Canterbury. On the 22nd the coronation took place with the greatest splendour. Mother and girls were inconsolable, for each had something that they were sure "Si would like," and would "do him good," but they knew Josiah Klegg, Sr., well enough to understand what was the condition when he had once made up his mind. CHAPTER V. THE YOUNG RECRUITS Si proceeded to deftly construct a litter out of the two guns, with some sticks that he cut with a knife, and bound with pawpaw strips. His voice had sunk very low, almost to sweetness. A soft flurry of pink went over her face, and her eyelids drooped. Then suddenly she braced herself, pulled herself taut, grew combative again, though her voice shook. HoME²Ô¾®Ïè̫ʲôÐÇ×ù
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