H3C Technologies H3C SR8800 User Manual

Page 152

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Session existed time : 000:01:48 (DDD:HH:MM)

LDP Basic Discovery Source : GigabitEthernet3/1/1

Addresses received from peer: (Count: 2)

2.1.1.1 1.1.1.1

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Peer LDP ID : 3.3.3.3:0 Local LDP ID : 2.2.2.2:0

TCP Connection : 2.2.2.2 <- 3.3.3.3

Session State : Operational Session Role : Passive

Session FT Flag : Off MD5 Flag : Off

Reconnect Timer : --- Recovery Timer : ---

Negotiated Keepalive Timer : 45 Sec

Keepalive Message Sent/Rcvd : 411/411 (Message Count)

Label Advertisement Mode : Downstream Unsolicited

Label Resource Status(Peer/Local) : Available/Available

Peer Discovery Mechanism : Extended

Session existed time : 000:01:42 (DDD:HH:MM)

LDP Extended Discovery Source : Remote peer: 1

Addresses received from peer: (Count: 2)

4.1.1.1 3.3.3.3

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# Execute the display mpls ldp lsp command on Router B. You can see that Router C sent label

mapping messages to Router B and established an LDP LSP.

[RouterB] display mpls ldp lsp

LDP LSP Information

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SN DestAddress/Mask In/OutLabel Next-Hop In/Out-Interface

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1 1.1.1.1/32 NULL/3 2.1.1.1 -------/GE3/1/1

2 2.2.2.2/32 3/NULL 127.0.0.1 -------/InLoop0

3 3.3.3.3/32 NULL/3 10.1.1.1 -------/Tunnel3

4 3.3.3.3/32 1024/3 10.1.1.1 -------/Tunnel3

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A '*' before an LSP means the LSP is not established

A '*' before a Label means the USCB or DSCB is stale

CAUTION:

The IP address of the LDP remote peer must be configured as the LSR ID of the MPLS TE tunnel tailend.

7.

Verify the configuration
Execute the display mpls lsp command on Rotuer B. You can see that the LDP LSP from Router B to

Rotuer C is nested within the MPLS TE tunnel, that is, the outgoing interface of the LDP LSP is the
MPLS TE tunnel interface.

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