Redundancy
HMG-838PT & HMG-838EPT Web Configuration 7-5
Example
Port-1
Port-1
Port-2
Port-2
Port-1
Port-1Port-2
Port-2
Master
7-1.2 Status
Direct-Ring Status:
Instance: The instance number.
Type: Display the type of redundancy ring.
Role: This field can be Master or Slave (paths in Slave device will not be blocked).
East & West Port Number: The configured port number in an instance.
East & West Port State: The current state of the configured port in a ring. The displayed state can be one of the
following:
Forwarding: The path is in normal transmission.
Blocking: The path is blocked and acts as a backup path.
Down: No physical connection.
East & West Port Edge: This field shows whether the configured port is an edge port or not.
Healthy: This field graphically displays the current ring status.
The path is never ringed.
The Master is elected and backup path is blocked. The network with a redundant path works normally.
The physical link or connection in the ring is down. The status of backup path is changed from “blocked”
to “forwarding” status when one of the forwarding paths is down.
Note: Please refer to the “Sample of Managed Switch Ring Configurations-v1.1.pdf” in the manual CD for more connection sample
and configuration note and details.
7-2 Loop Protection
Loops sometimes occur in a network due to improper connecting, hardware problem or faulty protocol settings. When
loops are seen in a switched network, they consume switch resources and thus downgrade switch performance. Loop
Protection feature is provided in this switch and can be enabled globally or on a per port basis. Using loop protection
enables the switch to automatically detect loops on a network. Once loops are detected, ports received the loop
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