Enabling Link-Aggregation Traffic Redirection - HP 5120 EI Series Lan Switching Configuration Manual

Figure 13 Load sharing process for cross-switch link aggregation in an IRF fabric
Any Selected ports on
the ingress switch?
Packets are load shared only
across the member ports on
the ingress switch
To enable local-first load sharing for link aggregation:
Step
1. Enter system view.
2. Enable local-first load-sharing
for link aggregation.

Enabling link-aggregation traffic redirection

The link-aggregation traffic redirection function can redirect traffic between IRF member switches for
cross-device link aggregation group. Link-aggregation traffic redirection prevents traffic interruption when
you reboot a IRF member switch that contains link aggregation member ports. For more information
about IRF, see IRF Configuration Guide.
Link-aggregation traffic redirection applies only to dynamic link aggregation groups and only to known
unicast packets.
After link-aggregation traffic redirection is enabled, do not add an Ethernet interface configured with
physical state change suppression to an aggregation group. Otherwise, Selected ports in the
aggregation group might work improperly. For more information about physical state change
suppression, see the link-delay command in Ethernet interface configuration commands.
To enable link-aggregation traffic redirection:
The egress port for a traffic flow is an
aggregate interface that has Selected
ports on different IRF member switches
Yes
Local-first load sharing
mechanism enabled?
No
Yes
Command
system-view
link-aggregation load-sharing
mode local-first
No
Packets are load shared
across all Selected ports
48
Remarks
N/A
Optional.
Enabled by default.
Local-first load sharing for link
aggregation takes effect on only
known unicast packets.