Cabletron Systems DELHF-UA User Manual page 54

Digital fddi modular interface
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Chapter 3: Local Management
Primary
In
Port A
Secondary
Out
Figure 3-9 Example of Isolated MAC Configuration
Wrap-AB -
(primary in) and is wrapped by the MAC, causing the ring to exit
through port A (secondary out). The MAC has also wrapped port B,
causing the flow of the ring to enter through port B (secondary in) and
exit through port B (primary out). The DELHF-UA MAC
Configuration can read "Wrap-AB" if the DELHF-UA is in a dual
homed configuration.
Primary
In
Port A
Secondary
Out
Figure 3-10 Example of Wrap-AB MAC Configuration
3-16
The flow of the primary ring is entering through port A
MAC
MAC
DELHF-UA User's Guide
Primary
Out
Port B
Secondary
In
Primary
Out
Port B
Secondary
In

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