R21xx-HP FlexFabric 11900 Layer 2 LAN Switching Configuration Guide

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Figure 4 Setting the aggregation state of a member port in a static aggregation group
NOTE:
• The maximum number of Selected ports in a static aggregation group is 16.
• To ensure stable aggregation state and service continuity, do not change port attributes or class-two
configurations on any member port. If you must, make sure you understand its impact on the live
network. Any port attribute or class-two confi
g
uration chan
g
e mi
g
ht affect the a
gg
re
g
ation state of link
aggregation member ports and ongoing traffic.
Aggregating links in dynamic mode
Dynamic aggregation mode is implemented through IEEE 802.3ad Link Aggregation Control Protocol
(LACP).
LACP
LACP uses LACPDUs to exchange aggregation information between LACP-enabled devices.
Each member port in an LACP-enabled aggregation group exchanges information with its peer. When a
member port receives an LACPDU, it compares the received information with information received on the