Hi there, Community friends!
This time, I will share with you a brief introduction about Physical link Aggregation. Hope you like!
Physical link aggregation aggregates microwave links and implements load sharing over these aggregated microwave links based on physical layer bandwidth. Physical link aggregation does not use the Hash algorithm and is independent of service flow compositions and therefore makes full use of link bandwidth. Physical link aggregation works in the following modes:
PLA mode: In this mode, IF boards distribute traffic, and two physical links can be aggregated as a group.
EPLA mode: In this mode, the packet switching unit distributes traffic, and a maximum of 2 (RTN 905 1E) or 4 (RTN 905 2E) physical links can be aggregated as a group.
Figure 1 EPLA example

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