1-6 
Link Aggregation Configuration 
 
 
z  The commands of link aggregation cannot be configured with the commands of port loopback 
detection feature at the same time. 
z  The ports where the mac-address max-mac-count command is configured cannot be added to 
an aggregation group. Contrarily, the mac-address max-mac-count command cannot be 
configured on a port that has already been added to an aggregation group. 
z  MAC-authentication-enabled ports and 802.1x-enabled ports cannot be added to an aggregation 
group.  
z  Mirroring destination ports and mirroring reflector ports cannot be added to an aggregation group.  
z  Ports configured with blackhole MAC addresses, static MAC addresses, multicast MAC addresses, 
or the static ARP protocol cannot be added to an aggregation group. 
z  Ports where the IP-MAC address binding is configured cannot be added to an aggregation group.  
z  Port-security-enabled ports cannot be added to an aggregation group.  
z  The port with Voice VLAN enabled cannot be added to an aggregation group. 
z  A port belonging to a port group cannot be added to an aggregation group. Conversely, a port 
belonging to an aggregation group cannot be added to a port group. 
 
Configuring a Manual Aggregation Group 
You can create a manual aggregation group, or remove an existing manual aggregation group (after 
that, all the member ports will be removed from the group). 
For a manual aggregation group, a port can only be manually added/removed to/from the manual 
aggregation group. 
Follow these steps to configure a manual aggregation group: 
To do…  Use the command…  Remarks 
Enter system view 
system-view 
— 
Create a manual aggregation 
group 
link-aggregation group agg-id mode 
manual 
Required 
Enter Ethernet port view 
interface interface-type 
interface-number 
— 
Add the Ethernet port to the 
aggregation group 
port link-aggregation group agg-id 
Required 
 
Note that: 
1)  When creating an aggregation group: 
z  If the aggregation group you are creating already exists but contains no port, its type will change to 
the type you set.