Cabletron Systems EMM-E6 User Manual

Page 72

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Repeater Redundancy

5-4

Setting Network Circuit Redundancy

In the appropriate boxes, enter a new circuit name (up to 16 alphanumeric
characters) and/or number of retries; Retries is the number of times the
EMM-E6 tests the connection to the first IP address listed in the Circuit
Addresses window before it gives up and moves on to the next address. The
valid range of retries you can enter into this field is 0-16. Be sure to click on

before exiting the window to save your changes.

3.

With the appropriate Circuit Name highlighted, click

to access the

Add Circuit Address window,

Figure 5-4

.

Figure 5-4. The Add Circuit Address Window

In this window you can define IP addresses of up to 8 devices on the network.
These addresses identify the destination nodes that the EMM-E6 looks for to
determine the status of the active link. If the device determines that it has lost
the link with the first address in the Circuit Addresses list, it checks the link
status with the next address. If it can’t establish a link with any address in the
list, the device switches traffic to a backup port.

a.

To add a circuit address, enter a valid network IP address and then click

. Repeat as necessary to add additional addresses. Click

to exit the window.

b.

To delete a circuit address, highlight the address in the Circuit Addresses
list in the Channel X Redundancy window, and click

.

4.

The bottom half of the Channel X Redundancy window is where you define
the primary port and backup ports for the highlighted Circuit Name. Using the
Module and Port boxes and the Add button, enter up to 8 ports to define the
circuit.

NOTE

The EMM-E6 will poll the circuit addresses in the order they were entered.

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