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Displaying static lsps, Static lsp configuration example, Network requirements – H3C Technologies H3C S12500-X Series Switches User Manual

Page 23: Configuration considerations, Enabling sending of mpls ttl-expired messages, Enabling snmp notifications for mpls

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12

Step Command

Remarks

2.

Configure the ingress
node of the static LSP.

static-lsp ingress lsp-name destination
dest-addr { mask | mask-length }
{ nexthop next-hop-addr |

outgoing-interface interface-type

interface-number } out-label out-label

If you specify a next hop for the
static LSP, make sure the ingress

node has an active route to the
specified next hop address.

3.

Configure the transit
node of the static LSP.

static-lsp transit lsp-name in-label in-label
{ nexthop next-hop-addr |
outgoing-interface interface-type

interface-number } out-label out-label

If you specify a next hop for the
static LSP, make sure the transit
node has an active route to the

specified next hop address.

4.

Configure the egress

node of the static LSP.

static-lsp egress lsp-name in-label in-label

You do not need to configure this
command if the outgoing label

configured on the penultimate

hop of the static LSP is 0 or 3.

Displaying static LSPs

Execute the display command in any view.

Task Command

Display static LSP information.

display mpls static-lsp [ lsp-name lsp-name ]

Static LSP configuration example

Network requirements

Switch A, Switch B, and Switch C all support MPLS.
Establish static LSPs between Switch A and Switch C, so that subnets 11.1.1.0/24 and 21.1.1.0/24 can

access each other over MPLS.

Figure 8 Network diagram

Configuration considerations

For an LSP, the outgoing label specified on an LSR must be identical with the incoming label

specified on the downstream LSR.

LSPs are unidirectional. You must configure an LSP for each direction of the data forwarding path.

Loop0

2.2.2.9/32

Vlan-int3
20.1.1.1/24

Loop0

3.3.3.9/32

Loop0

1.1.1.9/32

Vlan-int2
10.1.1.1/24

Vlan-int2

10.1.1.2/24

Vlan-int3

20.1.1.2/24

Switch A

Switch B

Switch C

11.1.1.0/24

21.1.1.0/24

Vlan-int4

11.1.1.1/24

Vlan-int5
21.1.1.1/24