Brocade Multi-Service IronWare Switching Configuration Gui Manual de usuario descargar pdf (Pagina 439)

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Multi-Service IronWare Switching Configuration Guide 409

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Point-to-point ports

FIGURE 73 Topology with edge ports

However, if any incoming RST BPDU is received from a previously configured Edge port, RSTP

automatically makes the port as a non-edge port. This is extremely important to ensure a loop free

Layer 2 operation since a non-edge port is part of the active RSTP topology.

The bridge detection state module can auto-detect an Edge port and a non-edge port. An

administrator can also configure a port to be an Edge port. It is recommended that Edge ports are

configured explicitly to take advantage of the Edge port feature, instead of allowing the protocol to

auto-detect them.

Point-to-point ports

To take advantage of the RSTP features, ports on an RSTP topology should be explicitly configured

as point-to-point links. Shared media should not be configured as point-to-point links.

NOTE

Configuring shared media or non-point-to-point links as point-to-point links could lead to Layer 2

loops.

The topology in Figure 74 is an example of shared media that should not be configured as

point-to-point links. In Figure 74, a port on a bridge communicates or is connected to at least two

ports.

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