D-Link DGS-6608 — руководство по командам MPLS для статических FTN записей [508/1106]

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DGS-6600 Series Switch m mpls static ftn

CLI Reference Guide

498

mpls static ftn

Use this command to add a static FTN entry. Use no mpls static ftn command to

remove the previous configured static FTN.

mpls static ftn NETWORK-PREFIX | PREFIX-LENGTH out-label LABEL-VALUE nexthop IP-

ADDRESS

no mpls static ftn {NETWORK-PREFIX | PREFIX-LENGTH | all}

Default No static FTN.

Command Mode Global configuration mode.

Usage Guideline Use this command to add a static FTN entry.

At ingress LER (Label Edge Router), the incoming IP packets that are classified

to the FEC (Forwarding Equivalence Class) will be pushed the MPLS label and

forwarded to next hop according the FTN (FEC-to-NHLFE).

MPLS Reserved Labels Range

Labels 0 through 15 are reserved labels. An LSR cannot use them in the normal

case for forwarding packets. An LSR assigns a specific function to each of these

labels. Label 0 is the explicit NULL label, whereas label 3 is the implicit NULL

label. Label 1 is the router alert label, whereas label 14 is the OAM alert label.

The other reserved labels between 0 and 15 have not been assigned yet. Please

refer to RFC 3032.The follows figure shows the structure of a FTN that push

label 100 for prefix FEC 172.18.10.0/24.

Syntax Description

NETWORK-PREFIX |

PREFIX-LENGTH

Specifies the FEC of the static FTN.

out-label LABEL-

VALUE

Specifies the out-label of the FEC. The range is between 16 and 1048575 (2

1).

nexthop IP-

ADDRESS

Specifies the next-hop IP address of the FEC.

FEC

Next Hop Label Forwarding Entry

(NHLE)

Next Hop Label Operation Out-label

IP prefix 172.18.10.0/24 110.1.1.2 push 100