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61200290L1-1G 7-1
SECTION 7, CIRCUIT AND NETWORK REDUNDANCY
Section 7
Circuit and Network Redundancy
1. INTRODUCTION
The MX2800 provides backup measures of protection for circuit failure. The following subsections
describe the possible modes of operation:
• Nonredundant Mode on page 7-1 offers no backup protection
• Circuit Failure Recovery Mode on page 7-2 furnishes backup protection in the event of controller card
failure
• Circuit and Network Failure Recovery Mode on page 7-3 provides the most complete mode of circuit
and network protection.
The descriptions given include illustrations and suggested configuration settings.
NOTE
The settings may need modification based on your network configuration.
2. NONREDUNDANT MODE
In Nonredundant Mode, the MX2800 houses only one controller card. There is no failure protection. In the
event of a failure, an alarm is initiated and the front panel LEDs reflect the condition. See Figure 7-1 on
page 7-1 for an illustration.
Figure 7-1. Nonredundant Mode