Configuration procedure – H3C Technologies H3C S6800 Series Switches User Manual

Page 54

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To ensure that LDP establishes LSPs only for the routes 11.1.1.0/24 and 21.1.1.0/24, configure LSP

generation policies on each LSR.

To ensure that LDP establishes LSPs only over the link Switch A—Switch B—Switch C, configure label
acceptance policies as follows:

{

Switch A accepts only the label mapping for FEC 21.1.1.0/24 received from Switch B. Switch A
denies the label mapping for FEC 21.1.1.0/24 received from Switch D.

{

Switch C accepts only the label mapping for FEC 11.1.1.0/24 received from Switch B. Switch C
denies the label mapping for FEC 11.1.1.0/24 received from Switch D.

Configuration procedure

1.

Configure IP addresses and masks for interfaces, including the loopback interfaces, as shown

in

Figure 18

. (Details not shown.)

2.

Configure OSPF on each switch to ensure IP connectivity between them. (Details not shown.)

3.

Enable MPLS and LDP:
# Configure Switch A.

<SwitchA> system-view

[SwitchA] mpls lsr-id 1.1.1.9

[SwitchA] mpls ldp

[SwitchA-ldp] quit

[SwitchA] interface vlan-interface 2

[SwitchA-Vlan-interface2] mpls enable

[SwitchA-Vlan-interface2] mpls ldp enable

[SwitchA-Vlan-interface2] quit

[SwitchA] interface vlan-interface 6

[SwitchA-Vlan-interface6] mpls enable

[SwitchA-Vlan-interface6] mpls ldp enable

[SwitchA-Vlan-interface6] quit

# Configure Switch B.

<SwitchB> system-view

[SwitchB] mpls lsr-id 2.2.2.9

[SwitchB] mpls ldp

[SwitchB-ldp] quit

[SwitchB] interface vlan-interface 2

[SwitchB-Vlan-interface2] mpls enable

[SwitchB-Vlan-interface2] mpls ldp enable

[SwitchB-Vlan-interface2] quit

[SwitchB] interface vlan-interface 3

[SwitchB-Vlan-interface3] mpls enable

[SwitchB-Vlan-interface3] mpls ldp enable

[SwitchB-Vlan-interface3] quit

# Configure Switch C.

<SwitchC> system-view

[SwitchC] mpls lsr-id 3.3.3.9

[SwitchC] mpls ldp

[SwitchC-ldp] quit

[SwitchC] interface vlan-interface 3

[SwitchC-Vlan-interface3] mpls enable

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