How to implement MPLS and LDP label distribution

Experimental requirements:

1. Purpose-based LDP session

2. Control label notification through LDP

3. MPLS LDP inbound Tag bundle filtering

Topology environment description:

1. All interconnection IPs are as shown in the figure

2. The Loopback0 port address of all devices is X.X. #4. All devices run in the MPLS domain

Basic implementation:

1)OSPF protocol implementation2)MPLS basic implementation

Implementation command:

Globally:

mpls label range 100 199

mpls label protocol ldp

mpls ldp router-id Loopback0 force

Under the interface:

mpls ip

Implementation result:

show mpls ldp neighbor

show mpls ldp bindings

show mpls forwarding-table

Experimental requirement implementation:

1. Implementation method: Configure purpose-based LDP neighbor relationship on R2, configure only receive on R4 A purpose-based LDP session initiated by a specific LDP router, 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

Implementation result:

show mpls ldp neighbor 4.4.4.4 detail

2. Implementation command:

R3 configuration:

nompls ldp advertise-labels [If If this command is not configured, R3 will still advertise the labels 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

Check results Command:

Configuration on R3:

show mpls ldp bindings advertisement-acls

Configuration on R4:

show mpls ldp bindings 3.3.3.3 detail

Implementation results:

##Extension: to other LDP peers Body advertises all bundles for all prefixes

Implementation 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. Implementation 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

Achievement results:

The above is the detailed content of How to implement MPLS and LDP label distribution. For more information, please follow other related articles on the PHP Chinese website!