LEGRAND Raritan PX3TS, Руководство пользователя

Страница: 350 / 911

Chapter 7: Using the Web Interface
330
Tip: You can enable/configure multiple network interfaces in the Port
Forwarding mode so that the cascading chain has multiple IP addresses.
7. Click Save.
For information on accessing each cascaded device in the Port Forwarding
mode, see
Port Forwarding Examples (on page 334).
Recommendations for cascade loops:
You can connect both the first and the last PDU to your network (cascade
loop) under the following conditions:
a. The remaining network MUST use R/STP to avoid network loops.
AND
Both the first and the last PDUs MUST either attach to the same switch or, if
they are attached to two separate switches, you must configure both ports of
these switches so that the STP costs are high. This prevents the STP protocol
from sending unrelated traffic through the PDU cascade, which can cause
bottlenecks that lead to connectivity issues in the whole network.
Online cascading information:
For more information on cascading configurations and restrictions, refer to the
Cascading Guide on the Raritan Support page
( http://www.raritan.com/support/ ).
Overview of the Cascading Modes
You must apply a cascading mode to the cascading chain. See Setting the
Cascading Mode (on page 328).
There are two cascading modes: Bridging and Port Forwarding.
In the following illustration, it is assumed that users enable the DHCP
networking for the cascading chain comprising four devices. In the diagrams,
"M" is the master device and "S" is a slave device.
Illustration:
•
"Bridging" mode: