Redundancy
HMG-838PT & HMG-838EPT Web Configuration 7-2
Direct-Ring Configuration:
Click “Add New Instance” button to add a new entry.
Instance: The instance number. The total instances supported are 5
.
Type: Direct-Ring supports 4 ring types, and these ring types are:
Direct-Ring
Direct-Chain
Join-Ring
X-Slave
And they are explained below individually.
Direct-Ring Sample:
Direct-Ring: Direct-Ring type is used in a closed ring topology. All participating devices must support Direct-Ring
redundancy technology.
Figure 1. Single Ring Figure 2.Two Rings
Direct-Chain Sample:
Direct-Chain: Direct -Chain type is used when Direct -Ring supported devices interconnect to a network or devices that
does not support Direct -Ring redundancy technology. And in order to work with the other network, the other
network must be able to process and recognize the TCN (Topology Change Notification), for example: RSTP.
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