Draft-Rosen Multicast VPN (Profile 0) uses Generic Routing Encapsulation (GRE) as an overlay protocol. All multicast packets
are encapsulated inside GRE. Profile 0 has PIM as the multicast routing protocol between the edge routers (PE) and hosts (CE), and between the PE routers
in the VRF mode. The PE routers directly connect using a Default Multicast Distribution Tree (MDT) formed between the PE routers.
The PE routers connect to each other as PIM neighbors across the Default MDT.
Verification
Router# show pim vrf vpn101 context
Wed Aug 9 14:56:28.382 UTC
PIM context information for VRF vpn101 (0x55845d7772b0)
VRF ID: 0x60000002
Table ID: 0xe0000002
Remote Table ID: 0xe0800002
MDT Default Group : 232.1.0.1
MDT Source : (4.4.4.4, Loopback0) Per-VRF
MDT Immediate Switch Not Configured
MDT handle: 0x2000806c(mdtvpn101)
Context Active, ITAL Active
Routing Enabled
Registered with MRIB
Owner of MDT Interface
Raw socket req: T, act: T, LPTS filter req: T, act: T
UDP socket req: T, act: T, UDP vbind req: T, act: T
Reg Inj socket req: T, act: T, Reg Inj LPTS filter req: T, act: T
Mhost Default Interface : TenGigE0/0/0/18 (publish pending: F)
Remote MDT Default Group : 232.2.0.1
Backup MLC virtual interface: Null
Neighbor-filter: -
MDT Neighbor-filter: -
Router# show mrib vrf vpn101 route detail
Wed Aug 9 10:20:40.486 UTC
IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
LD - Local Disinterest, DI - Decapsulation Interface
EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface, MH - Multihome Interface
(*,224.0.0.0/4) Ver: 0x9b0d RPF nbr: 21.1.1.1 Flags: L C RPF P, FGID: 11903, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:03:33
Outgoing Interface List
Decapstunnel1 Flags: NS DI, Up: 00:03:28
(*,224.0.0.0/24) Ver: 0xec6c Flags: D P, FGID: 11901, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:03:33
(*,224.0.1.39) Ver: 0xe7dc Flags: S P, FGID: 11899, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:03:33
(*,224.0.1.40) Ver: 0xf5fb Flags: S P, FGID: 11900, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:03:33
Outgoing Interface List
TenGigE0/0/0/6 Flags: II LI, Up: 00:03:33
(*,232.0.0.0/8) Ver: 0x96d1 Flags: D P, FGID: 11902, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:03:33
(2.0.0.2,232.1.1.1) Ver: 0x2c3f RPF nbr: 4.4.4.4 Flags: RPF RPFID, FGID: 11907, Statistics enabled: 0x0, Tunnel RIF: 0x26, Tunnel LIF: 0xa000, Flags2: 0x2
Up: 00:00:22
RPF-ID: 1, Encap-ID: 0
Incoming Interface List
mdtvpn101 Flags: A MI, Up: 00:00:22
Outgoing Interface List
TenGigE0/0/0/6 Flags: F NS LI, Up: 00:00:22
Router# show pim vrf vpn101 context
Wed Aug 9 15:00:03.092 UTC
IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
LD - Local Disinterest, DI - Decapsulation Interface
EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface, MH - Multihome Interface
(*,224.0.0.0/24) Ver: 0x7f6e Flags: D P, FGID: 9235, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:06:54
(*,224.0.1.39) Ver: 0x7af2 Flags: S P, FGID: 9233, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:06:54
(*,224.0.1.40) Ver: 0x9f9b Flags: S P, FGID: 9234, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:06:54
Outgoing Interface List
TenGigE0/0/0/4 Flags: II LI, Up: 00:06:54
(*,232.0.0.0/8) Ver: 0x517d Flags: D P, FGID: 9236, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:06:54
(4.4.4.4,232.1.0.1) Ver: 0xc19e RPF nbr: 4.4.4.4 Flags: RPF ME MH, FGID: 9242, Statistics enabled: 0x0, Tunnel RIF: 0x35, Tunnel LIF: 0xc000, Flags2: 0x2
MVPN TID: 0xe0000002
MVPN Remote TID: 0x0
MVPN Payload: IPv4
MDT IFH: 0x2000806c
Up: 00:06:49
RPF-ID: 1, Encap-ID: 0
Incoming Interface List
Loopback0 Flags: F A, Up: 00:06:49
Outgoing Interface List
Loopback0 Flags: F A, Up: 00:06:49
TenGigE0/0/0/4 Flags: F NS, Up: 00:04:13
(21.21.21.21,232.1.0.1) Ver: 0xa354 RPF nbr: 10.2.0.2 Flags: RPF MD MH CD, FGID: 9244, Statistics enabled: 0x0, Tunnel RIF: 0x35, Tunnel LIF: 0xc000, Flags2: 0x2
MVPN TID: 0xe0000002
MVPN Remote TID: 0x0
MVPN Payload: IPv4
MDT IFH: 0x2000806c
Up: 00:04:13
RPF-ID: 1, Encap-ID: 0
Incoming Interface List
TenGigE0/0/0/4 Flags: A, Up: 00:04:13
Outgoing Interface List
Loopback0 Flags: F NS, Up: 00:04:13
(4.4.4.4,232.2.0.1) Ver: 0xbab2 RPF nbr: 4.4.4.4 Flags: RPF ME MH, FGID: 9243, Statistics enabled: 0x0, Tunnel RIF: 0x35, Tunnel LIF: 0xc000, Flags2: 0x2
MVPN TID: 0x0
MVPN Remote TID: 0xe0800002
MVPN Payload: IPv6
MDT IFH: 0x2000806c
Up: 00:06:49
RPF-ID: 1, Encap-ID: 0
Incoming Interface List
Loopback0 Flags: F A, Up: 00:06:49
Outgoing Interface List
Loopback0 Flags: F A, Up: 00:06:49
(4.4.4.4,232.100.1.0) Ver: 0x86b RPF nbr: 4.4.4.4 Flags: RPF ME MH, FGID: 9246, Statistics enabled: 0x0, Tunnel RIF: 0x35, Tunnel LIF: 0xc000, Flags2: 0x2
MVPN TID: 0xe0000002
MVPN Remote TID: 0x0
MVPN Payload: IPv4
MDT IFH: 0x2000806c
Up: 00:01:17
RPF-ID: 1, Encap-ID: 0
Incoming Interface List
Loopback0 Flags: F A, Up: 00:01:17
Outgoing Interface List
Loopback0 Flags: F A, Up: 00:01:17
TenGigE0/0/0/4 Flags: F NS, Up: 00:01:17
Router# show mrib route detail
Wed Aug 9 15:00:03.092 UTC
IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
LD - Local Disinterest, DI - Decapsulation Interface
EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface, MH - Multihome Interface
(*,224.0.0.0/24) Ver: 0x7f6e Flags: D P, FGID: 9235, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:06:54
(*,224.0.1.39) Ver: 0x7af2 Flags: S P, FGID: 9233, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:06:54
(*,224.0.1.40) Ver: 0x9f9b Flags: S P, FGID: 9234, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:06:54
Outgoing Interface List
TenGigE0/0/0/4 Flags: II LI, Up: 00:06:54
(*,232.0.0.0/8) Ver: 0x517d Flags: D P, FGID: 9236, Statistics enabled: 0x0, Tunnel RIF: 0xffffffff, Tunnel LIF: 0xffffffff
Up: 00:06:54
(4.4.4.4,232.1.0.1) Ver: 0xc19e RPF nbr: 4.4.4.4 Flags: RPF ME MH, FGID: 9242, Statistics enabled: 0x0, Tunnel RIF: 0x35, Tunnel LIF: 0xc000, Flags2: 0x2
MVPN TID: 0xe0000002
MVPN Remote TID: 0x0
MVPN Payload: IPv4
MDT IFH: 0x2000806c
Up: 00:06:49
RPF-ID: 1, Encap-ID: 0
Incoming Interface List
Loopback0 Flags: F A, Up: 00:06:49
Outgoing Interface List
Loopback0 Flags: F A, Up: 00:06:49
TenGigE0/0/0/4 Flags: F NS, Up: 00:04:13
(21.21.21.21,232.1.0.1) Ver: 0xa354 RPF nbr: 10.2.0.2 Flags: RPF MD MH CD, FGID: 9244, Statistics enabled: 0x0, Tunnel RIF: 0x35, Tunnel LIF: 0xc000, Flags2: 0x2
MVPN TID: 0xe0000002
MVPN Remote TID: 0x0
MVPN Payload: IPv4
MDT IFH: 0x2000806c
Up: 00:04:13
RPF-ID: 1, Encap-ID: 0
Incoming Interface List
TenGigE0/0/0/4 Flags: A, Up: 00:04:13
Outgoing Interface List
Loopback0 Flags: F NS, Up: 00:04:13
(4.4.4.4,232.2.0.1) Ver: 0xbab2 RPF nbr: 4.4.4.4 Flags: RPF ME MH, FGID: 9243, Statistics enabled: 0x0, Tunnel RIF: 0x35, Tunnel LIF: 0xc000, Flags2: 0x2
MVPN TID: 0x0
MVPN Remote TID: 0xe0800002
MVPN Payload: IPv6
MDT IFH: 0x2000806c
Up: 00:06:49
RPF-ID: 1, Encap-ID: 0
Incoming Interface List
Loopback0 Flags: F A, Up: 00:06:49
Outgoing Interface List
Loopback0 Flags: F A, Up: 00:06:49
(4.4.4.4,232.100.1.0) Ver: 0x86b RPF nbr: 4.4.4.4 Flags: RPF ME MH, FGID: 9246, Statistics enabled: 0x0, Tunnel RIF: 0x35, Tunnel LIF: 0xc000, Flags2: 0x2
MVPN TID: 0xe0000002
MVPN Remote TID: 0x0
MVPN Payload: IPv4
MDT IFH: 0x2000806c
Up: 00:01:17
RPF-ID: 1, Encap-ID: 0
Incoming Interface List
Loopback0 Flags: F A, Up: 00:01:17
Outgoing Interface List
Loopback0 Flags: F A, Up: 00:01:17
TenGigE0/0/0/4 Flags: F NS, Up: 00:01:17