Aggregating Links In Static Mode - HP 6600 Configuration Manual

Table 3 LACP priorities
Type
System LACP priority
Port aggregation
priority
3. LACP timeout interval:
LACP timeout interval specifies how long a member port waits to receive LACPDUs from the peer
port. If a local member port fails to receive LACPDUs from the peer within three times the LACP
timeout interval, the member port assumes that the peer port has failed. You can configure the
LACP timeout interval as either the short timeout interval (1 second) or the long timeout interval (30
seconds).

Aggregating links in static mode

LACP is disabled on the member ports in a static aggregation group. You must manually maintain their
aggregation state.
Choosing a reference port
The system chooses a reference port from the UP member ports that have the same class-two
configurations as the aggregate interface.
The candidate ports are sorted by aggregation priority, duplex, and speed in the following order:
Lowest aggregation priority value
•
Full duplex/high speed
•
Full duplex/low speed
•
• Half duplex/high speed
Half duplex/low speed
•
The one at the top is chosen as the reference port. If two ports have the same aggregation priority, duplex
mode, and speed, the one with the lower port number is chosen.
Setting the aggregation state of each member port
After choosing the reference port, the static aggregation group sets the aggregation state of each
member port, as shown in
ports, any port assigned to the group is placed in Unselected state to avoid traffic interruption on the
current Selected ports.
Description
Used by two peer devices (or systems) to determine which one is superior in link
aggregation.
In dynamic link aggregation, the system with higher system LACP priority sets the
Selected state of member ports on its side first, and then the system with lower priority
sets the port state accordingly.
Determines the likelihood of a member port to be selected on a system. The higher the
port aggregation priority, the higher the likelihood.
Figure 4. After the static aggregation group has reached the limit on Selected
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