Aggregation Group Categories - H3C S7500 Series Operation Manual

Operation Manual – Link Aggregation
H3C S7500 Series Ethernet Switches
Table 1-3 Restriction of non-type-A LPUs on link aggregation
LPU type
Non-type-A
LPU

1.1.8 Aggregation Group Categories

Depending on whether or not load sharing is implemented, aggregation groups can be
load-sharing or non-load-sharing aggregation groups.
In general, the system only provides limited load-sharing aggregation resources
(currently up to 64 load-sharing aggregation groups can be created), 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.
The priorities of aggregation groups for allocating load-sharing aggregation resources
are as follows:
An aggregation group containing special ports (such as 10GE port) 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 two aggregation groups, the one that might gain higher speed if resources
were allocated to it has higher priority than the other one.
If the two groups can gain the same speed after resources are allocated to them,
the one with smaller master port number has higher priority than the other one.
When an aggregation group of higher priority appears, the aggregation groups of lower
priorities release their hardware resources. For single-port aggregation groups, if they
can transceive packets normally without occupying aggregation resources, they will not
occupy hardware aggregation resources.
Cross-chip
aggregation
Supported
aggregation groups,
Chapter 1 Link Aggregation Configuration
Maximum
number of
Aggregation
ports in an
type
aggregation
Manual
8
aggregation
The number of
Static/dynamic
ports on the
aggregation
LPU
newly-created aggregation
1-7
Maximum
number of
selected
ports in an
aggregation
group
group
8
8
groups will be