This section shows a configuration example for a pair of redundant MEGs that use mLDP in the SBD to transmit and receive multicast traffic.
As in the previous example, each MEG in the pair is configured with a VPRN that contains the MVPN configuration and an SBD R-VPLS. Local sources/receivers are supported in this example and they are attached to local BDs or local interfaces in the VPRN. A receiver connected to a local BD (BD-6023) is multihomed to MEG1 and MEG2. Also, as in the previous example, the use of domain-id in the VPRN and the SBD R-VPLS prevents control plane loops for unicast routes. The following CLI shows the configuration in MEG1.
// MEG1’s VPRN service
*A:MEG1# configure service vprn 6000
*A:MEG1>config>service>vprn# info
----------------------------------------------
local-routes-domain-id 64500:2 // avoids loops for local routes
interface "BD-6023" create // local BD
address 11.0.0.2/24
vrrp 1 passive
backup 11.0.0.254
exit
vpls "BD-6023"
evpn
arp
no learn-dynamic
advertise dynamic
exit
exit
exit
exit
interface "SBD-6002" create
vpls "SBD-6002"
evpn-tunnel supplementary-broadcast-domain
exit
exit
interface "local" create // local interface
address 20.0.0.254/24
sap pxc-6.a:600 create
exit
exit
bgp-ipvpn
mpls
auto-bind-tunnel
resolution any
exit
domain-id 64500:6000
route-distinguisher 192.0.2.2:6000
vrf-target target:64500:6000
no shutdown
exit
exit
igmp
interface "BD-6023"
no shutdown
exit
interface "SBD-6002"
no shutdown
exit
interface "local"
no shutdown
exit
exit
pim
interface "SBD-6002"
multicast-senders always
exit
apply-to all
rp
static
address 4.4.4.4
group-prefix 224.0.0.0/4
exit
exit
bsr-candidate
shutdown
exit
rp-candidate
shutdown
exit
exit
no shutdown
exit
mvpn
auto-discovery default
c-mcast-signaling bgp
intersite-shared persistent-type5-adv
provider-tunnel
inclusive
mldp
no shutdown
exit
exit
exit
vrf-target unicast
exit
exit
no shutdown
----------------------------------------------
// MEG1’s SBD service
*A:MEG1>config>service>vprn# /configure service vpls 6002
*A:MEG1>config>service>vpls# info
----------------------------------------------
allow-ip-int-bind
forward-ipv4-multicast-to-ip-int
forward-ipv6-multicast-to-ip-int
evpn-mcast-gateway create
non-dr-attract-traffic from-evpn from-pim-mvpn
no shutdown
exit
exit
bgp
exit
bgp-evpn
no mac-advertisement
ip-route-advertisement domain-id 64500:6002
sel-mcast-advertisement
evi 6002
mpls bgp 1
ingress-replication-bum-label
ecmp 2
auto-bind-tunnel
resolution any
exit
no shutdown
exit
exit
provider-tunnel // mldp is enabled on the SBD
inclusive
owner bgp-evpn-mpls
data-delay-interval 10
root-and-leaf
mldp
no shutdown
exit
exit
igmp-snooping
no shutdown
exit
mld-snooping
no shutdown
exit
no shutdown
----------------------------------------------
// MEG1’s local BD-6023 service
*A:MEG1>config>service>vprn# /configure service vpls 6023
*A:MEG1>config>service>vpls# info
----------------------------------------------
allow-ip-int-bind
forward-ipv4-multicast-to-ip-int
forward-ipv6-multicast-to-ip-int
igmp-snooping
mrouter-port
exit
mld-snooping
mrouter-port
exit
exit
bgp
exit
bgp-evpn
evi 623
mpls bgp 1
ingress-replication-bum-label
auto-bind-tunnel
resolution any
exit
no shutdown
exit
exit
provider-tunnel
inclusive
owner bgp-evpn-mpls
data-delay-interval 10
root-and-leaf
mldp
no shutdown
exit
exit
stp
shutdown
exit
igmp-snooping
no shutdown
exit
mld-snooping
no shutdown
exit
sap lag-1:623 create
igmp-snooping
send-queries
exit
no shutdown
exit
no shutdownThe configuration of the redundant MEG2 is as follows:
// MEG2’s VPRN configuration
*A:MEG2# configure service vprn 6000
*A:MEG2>config>service>vprn# info
----------------------------------------------
local-routes-domain-id 64500:3
interface "BD-6023" create
address 11.0.0.3/24
vrrp 1 passive
backup 11.0.0.254
exit
vpls "BD-6023"
evpn
arp
no learn-dynamic
advertise dynamic
exit
exit
exit
exit
interface "SBD-6002" create
vpls "SBD-6002"
evpn-tunnel supplementary-broadcast-domain
exit
exit
interface "local" create
address 30.0.0.254/24
sap pxc-6.a:600 create
exit
exit
bgp-ipvpn
mpls
auto-bind-tunnel
resolution any
exit
domain-id 64500:6000
route-distinguisher 192.0.2.3:6000
vrf-target target:64500:6000
no shutdown
exit
exit
igmp
interface "BD-6023"
no shutdown
exit
interface "SBD-6002"
no shutdown
exit
interface "local"
no shutdown
exit
no shutdown
exit
pim
interface "SBD-6002"
multicast-senders always
exit
apply-to all
rp
static
address 4.4.4.4
group-prefix 224.0.0.0/4
exit
exit
bsr-candidate
shutdown
exit
rp-candidate
shutdown
exit
exit
no shutdown
exit
mvpn
auto-discovery default
c-mcast-signaling bgp
intersite-shared persistent-type5-adv
provider-tunnel
inclusive
mldp
no shutdown
exit
exit
exit
vrf-target unicast
exit
exit
no shutdown
----------------------------------------------
// MEG2 SBD configuration
*A:MEG2>config>service>vprn# /configure service vpls 6002
*A:MEG2>config>service>vpls# info
----------------------------------------------
allow-ip-int-bind
forward-ipv4-multicast-to-ip-int
forward-ipv6-multicast-to-ip-int
evpn-mcast-gateway create
non-dr-attract-traffic from-evpn from-pim-mvpn
no shutdown
exit
exit
bgp
exit
bgp-evpn
no mac-advertisement
ip-route-advertisement domain-id 64500:6002
sel-mcast-advertisement
evi 6002
mpls bgp 1
ingress-replication-bum-label
ecmp 2
auto-bind-tunnel
resolution any
exit
no shutdown
exit
exit
provider-tunnel
inclusive
owner bgp-evpn-mpls
data-delay-interval 10
root-and-leaf
mldp
no shutdown
exit
exit
igmp-snooping
no shutdown
exit
mld-snooping
no shutdown
exit
no shutdown
----------------------------------------------
// MEG2’s local BD-6023 service
A:MEG2>config>service>vpls# /configure service vpls 6023
A:MEG2>config>service>vpls# info
----------------------------------------------
allow-ip-int-bind
forward-ipv4-multicast-to-ip-int
forward-ipv6-multicast-to-ip-int
igmp-snooping
mrouter-port
exit
mld-snooping
mrouter-port
exit
exit
bgp
exit
bgp-evpn
evi 623
mpls bgp 1
ingress-replication-bum-label
auto-bind-tunnel
resolution any
exit
no shutdown
exit
exit
provider-tunnel
inclusive
owner bgp-evpn-mpls
data-delay-interval 10
root-and-leaf
mldp
no shutdown
exit
exit
stp
shutdown
exit
igmp-snooping
no shutdown
exit
mld-snooping
no shutdown
exit
sap lag-1:623 create
igmp-snooping
send-queries
exit
no shutdown
exit
no shutdown
----------------------------------------------After the preceding configuration is added, MEG1 and MEG2 run the DR election. As in the previous example, MEG1 is elected as DR and MEG2 as non-DR. In this example, the SBD is using mLDP instead of ingress replication to transmit and receive multicast traffic. The following sample output shows the status of the provider-tunnel in MEG1 and MEG2.
A:MEG1# show service id "SBD-6002" provider-tunnel
===============================================================================
Service Provider Tunnel Information
===============================================================================
Type : inclusive Root and Leaf : enabled
Admin State : enabled Data Delay Intvl : 10 secs
PMSI Type : ldp LSP Template :
Remain Delay Intvl : 0 secs LSP Name used : 8195
PMSI Owner : bgpEvpnMpls
Oper State : up Root Bind Id : 32767
===============================================================================
A:MEG1# tools dump service id "SBD-6002" provider-tunnels
===============================================================================
VPLS 6002 Inclusive Provider Tunnels Originating
===============================================================================
ipmsi (LDP) P2MP-ID Root-Addr
-------------------------------------------------------------------------------
8195 8195 192.0.2.2
-------------------------------------------------------------------------------
===============================================================================
VPLS 6002 Inclusive Provider Tunnels Terminating
===============================================================================
ipmsi (LDP) P2MP-ID Root-Addr
-------------------------------------------------------------------------------
8193 192.0.2.1
-------------------------------------------------------------------------------
A:MEG2# show service id "SBD-6002" provider-tunnel
===============================================================================
Service Provider Tunnel Information
===============================================================================
Type : inclusive Root and Leaf : enabled
Admin State : enabled Data Delay Intvl : 10 secs
PMSI Type : ldp LSP Template :
Remain Delay Intvl : 0 secs LSP Name used : 8195
PMSI Owner : bgpEvpnMpls
Oper State : up Root Bind Id : 32767
===============================================================================
A:MEG2# tools dump service id "SBD-6002" provider-tunnels
===============================================================================
VPLS 6002 Inclusive Provider Tunnels Originating
===============================================================================
ipmsi (LDP) P2MP-ID Root-Addr
-------------------------------------------------------------------------------
8195 8195 192.0.2.3
-------------------------------------------------------------------------------
===============================================================================
VPLS 6002 Inclusive Provider Tunnels Terminating
===============================================================================
ipmsi (LDP) P2MP-ID Root-Addr
-------------------------------------------------------------------------------
8193 192.0.2.1
-------------------------------------------------------------------------------Also the example in MEG or PEG configuration example for Ingress Replication on the SBD showed the IIF and OIF lists on the MEGs for a source 40.0.0.1 that was connected to a remote MVPN PE and was streaming group 239.0.0.44. In this example, there is a source 10.0.0.1 connected to a remote OISM PE and it is streaming group 239.0.0.1. The group has local receivers on the local SBD-6023, which is multihomed to MEG1 and MEG2, and has receivers on a remote MVPN PE. The remote MVPN PE is configured with the default mvpn umh-selection highest-ip and therefore a local join triggers a C-multicast source-join route that is imported only by MEG2 (given that it has higher IP address than MEG1).
The following shows a sample output for this scenario.
// The source-join route for 239.0.0.1 is only imported by MEG2
A:MEG1# show router bgp routes mvpn-ipv4 type source-join group-ip 239.0.0.1 source-ip 10.0.0.1
===============================================================================
BGP Router ID:192.0.2.2 AS:64500 Local AS:64500
===============================================================================
Legend -
Status codes : u - used, s - suppressed, h - history, d - decayed, * - valid
l - leaked, x - stale, > - best, b - backup, p - purge
Origin codes : i - IGP, e - EGP, ? - incomplete
===============================================================================
BGP MVPN-IPv4 Routes
===============================================================================
Flag RouteType OriginatorIP LocalPref MED
RD SourceAS Path-Id IGP Cost
Nexthop SourceIP Label
As-Path GroupIP
-------------------------------------------------------------------------------
No Matching Entries Found.
===============================================================================
A:PE-3# show router bgp routes mvpn-ipv4 type source-join group-ip 239.0.0.1 source-ip 10.0.0.1
===============================================================================
BGP Router ID:192.0.2.3 AS:64500 Local AS:64500
===============================================================================
Legend -
Status codes : u - used, s - suppressed, h - history, d - decayed, * - valid
l - leaked, x - stale, > - best, b - backup, p - purge
Origin codes : i - IGP, e - EGP, ? - incomplete
===============================================================================
BGP MVPN-IPv4 Routes
===============================================================================
Flag RouteType OriginatorIP LocalPref MED
RD SourceAS Path-Id IGP Cost
Nexthop SourceIP Label
As-Path GroupIP
-------------------------------------------------------------------------------
u*>i Source-Join - 100 0
192.0.2.3:6000 64500 None -
192.0.2.4 10.0.0.1
No As-Path 239.0.0.1
-------------------------------------------------------------------------------
Routes : 1
===============================================================================
// Therefore, only MEG2 will add the MVPN tunnel to the OIF list for the group
// MEG1 only adds the local BD-6023 to the OIF list
A:MEG1# show router 6000 pim group 239.0.0.1 detail
===============================================================================
PIM Source Group ipv4
===============================================================================
Group Address : 239.0.0.1
Source Address : 10.0.0.1
RP Address : 4.4.4.4
Advt Router :
Flags : spt Type : (S,G)
Mode : sparse
MRIB Next Hop : 10.0.0.1
MRIB Src Flags : direct
Keepalive Timer Exp: 0d 00:02:43
Up Time : 1d 17:27:02 Resolved By : rtable-u
Up JP State : Joined Up JP Expiry : 0d 00:00:00
Up JP Rpt : Not Joined StarG Up JP Rpt Override : 0d 00:00:00
Register State : Pruned Register Stop Exp : 0d 00:00:09
Reg From Anycast RP: No
Rpf Neighbor : 10.0.0.1
Incoming Intf : SBD-6002
Outgoing Intf List : BD-6023, SBD-6002
Curr Fwding Rate : 67.200 kbps
Forwarded Packets : 15258 Discarded Packets : 0
Forwarded Octets : 1281672 RPF Mismatches : 0
Spt threshold : 0 kbps ECMP opt threshold : 7
Admin bandwidth : 1 kbps
-------------------------------------------------------------------------------
Groups : 1
===============================================================================
// on MEG1's local BD-6023 there is a receiver on sap:lag-1:623
A:MEG1# show service id "BD-6023" mfib
===============================================================================
Multicast FIB, Service 6023
===============================================================================
Source Address Group Address Port Id Svc Id Fwd
Blk
-------------------------------------------------------------------------------
* * mpls:192.0.2.3:524258 Local Fwd
10.0.0.1 239.0.0.1 sap:lag-1:623 Local Fwd
mpls:192.0.2.3:524258 Local Fwd
* * (mac) mpls:192.0.2.3:524258 Local Fwd
-------------------------------------------------------------------------------
Number of entries: 3
===============================================================================
// MEG2 adds the local BD-6023 and the MVPN tunnel to the OIF list
A:PE-3# show router 6000 pim tunnel-interface
===============================================================================
PIM Interfaces ipv4
===============================================================================
Interface Originator Address Adm Opr Transport Type
-------------------------------------------------------------------------------
mpls-if-73729 192.0.2.3 Up Up Tx-IPMSI
mpls-if-73733 192.0.2.4 Up Up Rx-IPMSI
mpls-if-73736 192.0.2.2 Up Up Rx-IPMSI
-------------------------------------------------------------------------------
Interfaces : 3
===============================================================================
A:PE-3# show router 6000 pim group 239.0.0.1 detail
===============================================================================
PIM Source Group ipv4
===============================================================================
Group Address : 239.0.0.1
Source Address : 10.0.0.1
RP Address : 4.4.4.4
Advt Router :
Flags : spt Type : (S,G)
Mode : sparse
MRIB Next Hop : 10.0.0.1
MRIB Src Flags : direct
Keepalive Timer : Not Running
Up Time : 1d 17:32:43 Resolved By : rtable-u
Up JP State : Joined Up JP Expiry : 0d 00:00:00
Up JP Rpt : Not Joined StarG Up JP Rpt Override : 0d 00:00:00
Register State : No Info
Reg From Anycast RP: No
Rpf Neighbor : 10.0.0.1
Incoming Intf : SBD-6002
Outgoing Intf List : BD-6023, mpls-if-73729
Curr Fwding Rate : 66.864 kbps
Forwarded Packets : 27221 Discarded Packets : 0
Forwarded Octets : 2286564 RPF Mismatches : 0
Spt threshold : 0 kbps ECMP opt threshold : 7
Admin bandwidth : 1 kbps
-------------------------------------------------------------------------------
Groups : 1
===============================================================================