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[RouterA-GigabitEthernet2/1/1] igmp enable
[RouterA-GigabitEthernet2/1/1] quit
# Enable PIM-SM on GigabitEthernet 2/1/2.
[RouterA] interface gigabitethernet 2/1/2
[RouterA-GigabitEthernet2/1/2] pim sm
[RouterA-GigabitEthernet2/1/2] quit
# Enable IP multicast routing, IGMP and PIM-SM on Router E and Router I in the same way Router
A is configured. (Details not shown.)
# On Router B, enable IP multicast routing, and enable PIM-SM on each interface.
<RouterB> system-view
[RouterB] multicast routing
[RouterB-mrib] quit
[RouterB] interface gigabitethernet 2/1/1
[RouterB-GigabitEthernet2/1/1] pim sm
[RouterB-GigabitEthernet2/1/1] quit
[RouterB] interface gigabitethernet 2/1/2
[RouterB-GigabitEthernet2/1/2] pim sm
[RouterB-GigabitEthernet2/1/2] quit
[RouterB] interface gigabitethernet 2/1/3
[RouterB-GigabitEthernet2/1/3] pim sm
[RouterB-GigabitEthernet2/1/3] quit
[RouterB] interface gigabitethernet 2/1/4
[RouterB-GigabitEthernet2/1/4] pim sm
[RouterB-GigabitEthernet2/1/4] quit
# Enable IP multicast routing and PIM-SM on Router C, Router D, Router F, Router G, and Router H
in the same way Router B is configured. (Details not shown.)
4. Configure admin-scoped zone boundaries:
# On Router B, configure GigabitEthernet 2/1/3 and GigabitEthernet 2/1/4 as the boundaries
of admin-scoped zone 1.
[RouterB] interface gigabitethernet 2/1/3
[RouterB-GigabitEthernet2/1/3] multicast boundary 239.0.0.0 8
[RouterB-GigabitEthernet2/1/3] quit
[RouterB] interface gigabitethernet 2/1/4
[RouterB-GigabitEthernet2/1/4] multicast boundary 239.0.0.0 8
[RouterB-GigabitEthernet2/1/4] quit
# On Router C, configure GigabitEthernet 2/1/4 and GigabitEthernet 2/1/5 as the boundaries
of admin-scoped zone 2.
<RouterC> system-view
[RouterC] interface gigabitethernet 2/1/4
[RouterC-GigabitEthernet2/1/4] multicast boundary 239.0.0.0 8
[RouterC-GigabitEthernet2/1/4] quit
[RouterC] interface gigabitethernet 2/1/5
[RouterC-GigabitEthernet2/1/5] multicast boundary 239.0.0.0 8
[RouterC-GigabitEthernet2/1/5] quit
# On Router D, configure GigabitEthernet 2/1/3 as the boundary of admin-scoped zone 2.
<RouterD> system-view
[RouterD] interface gigabitethernet 2/1/3
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