Aggregation Group Categories - H3C S5100-SI Series Operation Manual

Operation Manual – Link Aggregation
H3C S5100-SI/EI Series Ethernet Switches

1.3 Aggregation Group Categories

Depending on whether or not load sharing is implemented, aggregation groups can be
load-sharing or non-load-sharing aggregation groups. When load sharing is
implemented,
For IP packets, the system will implement load-sharing based on source IP
address and destination IP address;
For non-IP packets, the system will implement load-sharing based on source MAC
address and destination MAC address.
In general, the system only provides limited load-sharing aggregation resources, so the
system needs to reasonably allocate the resources among different aggregation
groups.
The system always allocates hardware aggregation resources to the aggregation
groups with higher priorities. When load-sharing aggregation resources are used up by
existing
non-load-sharing ones.
Load-sharing aggregation resources are allocated to aggregation groups in the
following order:
An aggregation group containing special ports which require hardware
aggregation resources has higher priority than any aggregation group containing
no special port.
A manual or static aggregation group has higher priority than a dynamic
aggregation group (unless the latter contains special ports while the former does
not).
For aggregation groups, the one that might gain higher speed if resources were
allocated to it has higher priority than others. If the groups can gain the same
speed, the one with smallest master port number has higher priority than other
groups.
When an aggregation group of higher priority appears, the aggregation groups of lower
priorities release their hardware resources. For single-port aggregation groups, they
can transceive packets normally without occupying aggregation resources
Caution:
A load-sharing aggregation group contains at least two selected ports, but a
non-load-sharing aggregation group can only have one selected port at most, while
others are unselected ports.
aggregation groups,
Chapter 1 Link Aggregation Configuration
newly-created aggregation
1-6
groups will be