Enabling the mpls function, Configuration prerequisites, Configuration procedure – H3C Technologies H3C S10500 Series Switches User Manual
Page 68: Configuring a static lsp

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Enabling the MPLS function
Enable MPLS on all routers before you can configure other MPLS features.
Configuration prerequisites
Before you enable MPLS, complete the following tasks:
•
Configure link layer protocols to ensure the connectivity at the link layer.
•
Assign IP addresses to interfaces so that all neighboring nodes can reach each other at the network
layer.
•
Configure static routes or an IGP protocol for the LSRs to communicate with each other.
Configuration procedure
Follow these steps to enable MPLS:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Configure the MPLS LSR ID
mpls lsr-id lsr-id
Required
Not configured by default
Enable MPLS globally and enter
MPLS view
mpls
Required
Not enabled by default
Return to system view
quit
—
Enter interface view
interface interface-type
interface-number
—
Enable MPLS for the interface
mpls
Required
Not enabled by default
NOTE:
An MPLS LSR ID is in the format of an IP address and must be unique within an MPLS domain. H3C
recommends using the IP address of a loopback interface on an LSR as the MPLS LSR ID.
Configuring a static LSP
The principle of establishing a static LSP is that the outgoing label of an upstream LSR is the incoming
label of its downstream LSR.
Configuration prerequisites
Before you configure a static LSP, complete the following tasks:
•
Determine the ingress LSR, transit LSRs, and egress LSR for the static LSP.
•
Enable MPLS on all these LSRs.
•
Ensure that the ingress LSR has a route to the FEC destination. This is not required on the transit LSRs
and egress LSR.