H3C Technologies H3C S7500E Series Switches - Manual (Page 98)

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Despite its ease of configuration, the application of MPLS TE tunnels over static CR-LSPs is restricted
because they do not accept bandwidth constraints and cannot dynamically adapt to network changes.
Static CR-LSPs are special static LSPs. They share the same constraints and use the same label
space.
Configuration Prerequisites
Before making the configuration, do the following:
z
Configure static routing or an IGP protocol to make sure that all LSRs are reachable.
z
Configure MPLS basic capabilities.
z
Configure MPLS TE basic capabilities.
Configuration Procedure
Follow these steps to create an MPLS TE tunnel over a CR-LSP:
To do… Use the command… Remarks
Enter system view system-view ––
Enter the interface view of an
MPLS TE tunnel
interface tunnel tunnel-number ––
Configure the tunnel to use static
CR-LSP
mpls te signal-protocol static Required
Submit the current tunnel
configuration
mpls te commit Required
Exit to system view quit ––
At the ingress
static-cr-lsp ingress
tunnel-name destination
dest-addr nexthop next-hop-addr
out-label out-label-value
On the transit
node
static-cr-lsp transit tunnel-name
incoming-interface
interface-type interface-number
in-label in-label-value nexthop
next-hop-addr out-label
out-label-value
Create a static
CR-LSP on
your device
depending on
its location in
the network
At the egress
static-cr-lsp egress tunnel-name
incoming-interface
interface-type interface-number
in-label in-label-value
Required
Use any of the commands
depending on the location of your
device in the network.