Phoenix Modular switch head station 10/100Mbps Manual de usuario descargar pdf (Pagina 208)

FL SWITCH MM HS

5-10

PHOENIX CONTACT 6874_en_09

RSTP Fast Ring Detection

The "RSTP Fast Ring Detection" function can be activated on the "RSTP Configuration"

web page (see page 5-5).

This function speeds up the switch-over to a redundant path in the event of an error and

provides easy diagnostics. RSTP fast ring detection provides each ring with an ID, this ID

is made known to each switch in the relevant ring. A switch can belong to several different

rings at the same time.

Structure of the Ring ID The ring ID consists of the port number of the blocking port and the MAC address of the

corresponding switch. Advantages of the ring ID:

– Easier to identify redundant paths and locate blocking ports.

– Possible to check whether the desired topology corresponds to the actual topology.

Figure 5-9 RSTP Ring Table

Information in WBM The following information is displayed on the web page (and via SNMP):

Local Ring Ports

These two ports of this switch belong to the ring that is listed (ring ID).

Blocking Port

This port deliberately breaks the loop.

Ring detection states The following states can occur for ring detection:

– Not Ready - Ring detection has not yet been completed.

– OK - Ring detection has been completed and quick switch-over is possible in the event

of an error.

– Breaked - The ring is broken on this branch in the direction of the root switch.

– Failed on Port A - The ring was broken on this switch at port A.

Ring ID

In the event of a link failure in the ring, the "trapRstpRingFailure" trap is sent.

1 2 ... 203 204 205 206 207 208 209 210 211 212 213 ... 265 266

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Phoenix Modular switch head station 10/100Mbps Manual de usuario Pagina 208