256
•
For VPN instance
b
, the default-group is 232.3.3.3, and the data-group range is
232.4.4.0 to 232.4.4.15. They are in the SSM group range.
VPN instances to
which PE interfaces
belong
•
PE 1: VLAN-interface 11 belongs to VPN instance
a
. VLAN-interface 12 belongs
to VPN instance
b
. VLAN-interface 2 and Loopback 1 belong to the public
network instance.
•
PE 2: VLAN-interface 3, VLAN-interface 4, and Loopback 1 belong to the public
network instance.
•
PE 3: VLAN-interface 4, VLAN-interface 5, and Loopback 1 belong to the public
network instance.
•
PE 4: VLAN-interface 13 belongs to VPN instance
a
. VLAN-interface 14 belongs
to VPN instance
b
. VLAN-interface 6 and Loopback 1 belong to the public
network instance.
Unicast routing
protocols and
MPLS
•
Configure OSPF separately in AS 100 and AS 200, and configure OSPF
between the PEs and CEs.
•
Establish IBGP peer connections between PE 1, PE 2, PE 3, and PE 4 on their
respective Loopback 1.
•
Configure BGP MDT peer connections between PE 1, PE 2, PE 3, and PE 4 on
their respective Loopback 1 and between PE 2 and PE 3 on their respective
VLAN-interface 4.
•
Establish EBGP peer connections between VLAN-interface 4 on PE 2 and PE 3.
•
Configure MPLS separately in AS 100 and AS 200.
IP multicast routing
•
Enable IP multicast routing on P 1 and P 2.
•
Enable IP multicast routing on the public network on PE 1, PE 2, PE 3, and PE 4.
•
Enable IP multicast routing for VPN instance
a
on PE 1 and PE 4.
•
Enable IP multicast routing for VPN instance
b
on PE 1 and PE 4.
•
Enable IP multicast routing on CE a1, CE a2, CE b1, and CE b2.
IGMP
•
Enable IGMPv2 on VLAN-interface 23 of CE a2.
•
Enable IGMPv2 on VLAN-interface 24 of CE b2.
PIM
Enable PIM-SSM on the public network and PIM-SM on VPN instances
a
and
b
:
•
Enable PIM-SM on all interfaces of P 1 and P 2.
•
Enable PIM-SM on all public network interfaces of PE 2 and PE 3.
•
Enable PIM-SM on all public and private network interfaces of PE 1 and PE 4.
•
Enable PIM-SM on all interfaces that do not have attached receiver hosts on CE
a1, CE a2, CE b1, and CE b2.
•
Configure VLAN-interface 11 of CE a1 as a C-BSR and a C-RP for VPN
instance
a
to provide services for all multicast groups.
•
Configure VLAN-interface 12 of CE b1 as a C-BSR and a C-RP for VPN
instance
b
to provide services for all multicast groups.
RPF vector
Enable the RPF vector feature on PE 1 and PE 4.