How to implement MPLS and LDP tag Distribution
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Lab requirements:
1. Purpose-based LDP session
2. Advertise via LDP control tag
3. MPLS LDP inbound tag bundling filtering
Description of the topology environment:
1. All interconnected IP are shown in the figure.
2. The Loopback0 port address of all the devices is X.XUniver 32Magi X, which is the equipment number.
3. All devices run OSPF to advertise directly connected network segment addresses and Loopback addresses
4. All devices are running in the MPLS domain
Basic implementation:
1) implementation of OSPF protocol
2) basic implementation of MPLS
Implement the command:
Globally:
Mpls label range 100 199
Mpls label protocol ldp
Mpls ldp router-id Loopback0 force
Under the API:
Mpls ip
Achieve the result:
Show mpls ldp neighbor
Show mpls ldp bindings
Show mpls forwarding-table
The experimental requirements are realized:
1. Implementation method: configure a purpose-based LDP neighbor relationship on R2, and configure R4 to receive only destination-based LDP sessions initiated by a specific LDP router, that is, R2.
Command implementation:
Configuration on R2:
Mplsldp neighbor 4.4.4.4 targeted ldp
Configuration on R4:
Mplsldp discovery targeted-hello accept from accpet-ldp
Ipaccess-list standard accpet-ldp
Permit2.2.2.2
Achieve the result:
Show mpls ldp neighbor 4.4.4.4 detail
2. Implement the command:
Configuration of R3:
Nompls ldp advertise-labels [if the command is not configured, R3 will still advertise the tags of all prefixes through LDP]
Mpls ldp advertise-labels for 1 to 2
Access-list1 permit 1.1.1.1
Access-list1 permit 2.2.2.2
Access-list1 deny any
Access-list2 permit 4.4.4.4
Access-list2 deny any
Inspection results command:
Configuration on R3:
Show mpls ldp bindings advertisement-acls
Configuration on R4:
Show mpls ldp bindings 3.3.3.3 detail
Achieve the result:
Extension: advertise all bundles of all prefixes to other LDP peers
Implement the command:
Configuration on R3:
Mpls ldp advertise-labels for other-prefixes to other-ldp-peers
Ip access-list standard other-ldp-peers
Deny 4.4.4.4
Permit any
Ip access-list standard other-prefixes
Permit any
3. Implement the command:
Configuration on R4:
Mpls ldp neighbor 5.5.5.5 labels accept 1
Access-list1 permit 5.5.5.5
Access-list1 permit 2.2.2.2
Access-list1 permit 3.3.3.3
Access-list1 permit 1.1.1.1
Achieve the result:
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