Multicast Forwarding Over A Gre Tunnel - HP FlexNetwork 7500 Series Configuration Manual

Referenced route/mask: 50.1.1.0/24
Referenced route type: multicast static
Route selection rule: preference-preferred
Load splitting rule: disable
The output shows that the RPF routes to Source 2 exist on Switch B and Switch C. The routes are
the configured static routes.

Multicast forwarding over a GRE tunnel

Network requirements
As shown in
•
Multicast routing and PIM-DM are enabled on Switch A and Switch C.
•
Switch B does not support multicast.
•
Switch A, Switch B, and Switch C run OSPF.
Configure the switches so that the receiver host can receive the multicast data from the source.
Figure 28 Network diagram
Configuration procedure
Assign an IP address and subnet mask for each interface, as shown in
1.
shown.)
Configure OSPF on all the switches. (Details not shown.)
2.
Configure a GRE tunnel:
3.
# On Switch A, create service loopback group 1, and specify the unicast tunnel service for the
group.
<SwitchA> system-view
[SwitchA] service-loopback group 1 type tunnel
# Add GigabitEthernet 1/0/3 to service loopback group 1. (GigabitEthernet 1/0/3 does not
belong to VLAN 100 or VLAN 101.)
[SwitchA] interface gigabitethernet 1/0/3
[SwitchA-GigabitEthernet1/0/3] port service-loopback group 1
[SwitchA-GigabitEthernet1/0/3] quit
# Create a GRE tunnel interface Tunnel 1, and specify the tunnel mode as GRE/IPv4.
[SwitchA] interface tunnel 1 mode gre
# Assign an IP address to interface Tunnel 1, and specify its source and destination addresses.
[SwitchA-Tunnel1] ip address 50.1.1.1 24
Figure 28:
71
Figure 28. (Details not