Dldp Network Example - H3C S7500 Series Operation Manual

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Operation Manual – DLDP

H3C S7500 Series Ethernet Switches

unidirectional links will not be reported and ports will not be shut down, while only

the state of DLDP neighbors changes.

If DLDP is enabled after unidirectional links appear, DLDP cannot detect

unidirectional links.

DLDP cannot be used together with similar protocols of other companies, that is,

you cannot enable DLDP on one end and enable one of the similar protocols of

other companies.

For XGbus products, pay attention to the following points:

When interface boards are hot swapped, if the plugged interface board is of the

same type as the pulled interface board, DLDP restores automatically.

When active/standby switchover is performed on an SRPU, the standby SRPU

detects unidirectional links instead of the SRPU. DLDP parameters remain the

same and unidirectional links are detected again on each port.

1.4 DLDP Network Example

I. Network requirements

Switch A and Switch B are connected through two pairs of fibers. Both of them

support DLDP;

Suppose the fibers between Switch A and Switch B are cross-connected. DLDP

disconnects the unidirectional links after detecting them;

When the network administrator connects the fiber correctly, the ports taken down

by DLDP are restored.

II. Network diagram

Figure 1-3 Fiber cross-connection

III. Configuration procedure

Configure Switch A

# Configure the ports to work in mandatory full duplex mode at the speed of 1000 Mbps.

Chapter 1 DLDP Configuration

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