Enabling The Mpls Function; Configuring A Static Lsp; Configuration Prerequisites; Configuration Guidelines - HP HSR6800 Configuration Manual

Enabling the MPLS function

In an MPLS domain, you must enable MPLS on all routers before you can configure other MPLS
features.
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.
To enable MPLS:
Step
1. Enter system view.
2. Configure the MPLS LSR ID.
3. Enable MPLS globally and
enter MPLS view.
4. Return to system view.
5. Enter interface view.
6. Enable MPLS for the
interface.

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.
•
Make sure the ingress LSR has a route to the FEC destination. This is not required on the
transit LSRs and egress LSR.

Configuration guidelines

Follow these guidelines when you configure a static LSP:
•
Do not specify a P2MP interface (such as a P2MP-type ATM subinterface or frame relay
subinterface) as the outgoing interface. Otherwise, the static LSP cannot be up.
Command
system-view
mpls lsr-id lsr-id
mpls
quit
interface interface-type
interface-number
mpls
10
Remarks
N/A
By default, no MPLS LSR ID is
configured.
An MPLS LSR ID is in the format
of an IP address and must be
unique within an MPLS domain.
As a best practice, use the IP
address of a loopback interface
on an LSR as the MPLS LSR ID.
By default, global MPLS is
disabled.
N/A
N/A
By default, MPLS is disabled on
interfaces.