3com S7906E Instruccion De Instalación
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DLDP Configuration
When performing DLDP configuration, go to these sections for information you are interested in:
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Overview
Background
Sometimes, unidirectional links appear in networks
.
On a unidirectional link, one end can receive
packets from the other end but the other end cannot.
Unidirectional links result in problems such as
loops in an STP-enabled network.
As for fiber links, two kinds of unidirectional links exist. One occurs when fibers are cross-connected, as
shown in
. The other occurs when one end of a fiber is not connected or one fiber of a fiber
pair gets disconnected, as illustrated by the hollow arrows in
Figure 1-1 Unidirectional fiber link: cross-connected fibers
Device A
GE2/0/1
GE2/0/2
Device B
GE2/0/1
GE2/0/2
PC