Alcatel-Lucent 7750 SR OS, Руководство по настройке интерфейса, Страница: 297 / 444

Interface Configuration
7750 SR OS Interface Configuration Guide Page 297
All ports, when added to a LAG, must share the same characteristics (speed, duplex, etc.). An error
message will be displayed when adding ports that do not share the same characteristics. Hold-timers
must be 0. Ports that are part of a LAG must be configured with autonegotiate limited or disabled.
The no form of this command removes ports from the LAG.
Default No ports are defined as members of a LAG.
Parameters port-id — The port ID configured or displayed in the slot/mda/port format.
priority priority — Port priority used by LACP. The port priority is also used to determine the
primary port. The port with the highest priority is the primary port. In the event of a tie, the
smallest port ID becomes the primary port.
Values 1 — 65535
subgroup sub-group-id — This parameter identifies a LAG subgroup. When using subgroups in a
LAG, they should only be configured on one side of the LAG, not both. Only having one side
perform the active/standby selection will guarantee a consistent selection and fast convergence.
The active/standby selection will be signalled through LACP to the other side. The hold time
should be configured when using subgroups to prevent the LAG going down when switching
between active and standby links in case no links are usable for a short time, especially in case a
subgroup consists of one member.
Values 1 — 8 identifies a LAG subgroup.
The
auto-iom subgroup is defined based on the IOM (all ports of the same IOM are
assigned to the same subgroup).
The
auto-mda subgroup is defined based on the MDA.
port-threshold
Syntax port-threshold value [ action { dynamic-cost | down }
no port-threshold
Context config>lag lag-id
Description This command configures the behavior for the Link Aggregation Group (LAG) if the number of
operational links is equal to or below a threshold level.
The no form of this command reverts to the default values.
Default
0 action down
Parameters
value — The decimal integer threshold number of operational links for the LAG at or below which
the configured action will be invoked. If the number of operational links exceeds the port-
threshold value, any action taken for being below the threshold value will cease.
Values
0 — 7
action { dynamic-cost | down
}
— Specifies the action to take if the number of active links in the
LAG is at or below the threshold value.