3com 8807 사용자 가이드

MBGP Multicast Extension Configuration Example

503

[SwitchA-bgp-af-mul] peer a1 enable

[SwitchA-bgp-af-mul] peer a2 enable

# Configure the MED attribute of Switch A.

■

Add an ACL on Switch A to permit network 1.0.0.0/8.

[SwitchA] acl number 2000

[SwitchA-acl-basic-2000] rule permit source 1.0.0.0 0.255.255.255

[SwitchA-acl-basic-2000] rule deny source any

■

Define two routing policies: set_med_50 and set_med_100, providing two
MED values for network 1.0.0.0 (50 and 100 respectively).

[SwitchA] route-policy set_med_50 permit node 10

[SwitchA-route-policy] if-match acl 2000

[SwitchA-route-policy] apply cost 50

[SwitchA-route-policy] quit

[SwitchA] route-policy set_med_100 permit node 10

[SwitchA-route-policy] if-match acl 2000

[SwitchA-route-policy] apply cost 100

■

Apply the routing policy set_med_50 to the exported route updates of Switch
C (193.1.1.2). Apply the routing policy set_med_100 to the exported route
updates of Switch B (192.1.1.2).

[SwitchA] bgp 100

[SwitchA-bgp] ipv4-family multicast

[SwitchA-bgp-af-mul] peer a2 route-policy set_med_50 export

[SwitchA-bgp-af-mul] peer a1 route-policy set_med_100 export

Configure Switch B:

<SwitchB> system-view

System View: return to User View with Ctrl+Z.

[SwitchB] vlan 20

[SwitchB-vlan20] port ethernet2/1/2

[SwitchB-vlan20] quit

[SwitchB] interface vlan-interface 20

[SwitchB-Vlan-interface20] ip address 192.1.1.2 255.255.255.0

[SwitchB-Vlan-interface20] quit

[SwitchB] vlan 40

[SwitchB-vlan40] port ethernet2/1/4

[SwitchB-vlan40] quit

[SwitchB] interface vlan-interface 40

[SwitchB-Vlan-interface40] ip address 194.1.1.2 255.255.255.0

[SwitchB-Vlan-interface40] quit

[SwitchB] ospf

[SwitchB-ospf-1] area 0

[SwitchB-ospf-1-area-0.0.0.0] network 194.1.1.0 0.0.0.255

[SwitchB-ospf-1-area-0.0.0.0] network 192.1.1.0 0.0.0.255

[SwitchB-ospf-1-area-0.0.0.0] quit

[SwitchB-ospf-1] quit

[SwitchB] bgp 200

[SwitchB-bgp] undo synchronization

[SwitchB-bgp] group b1 external

[SwitchB-bgp] peer 192.1.1.1.1 group b1 as-number 100

[SwitchB-bgp] group b2 internal

[SwitchB-bgp] peer 194.1.1.1.1 group b2

[SwitchB-bgp] peer 195.1.1.1.2 group b2