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CLI – This example creates trunk 1 with ports 9 and 10. Just connect these ports to
two static trunk ports on another switch to form a trunk.
Console(config)#interface port-channel 1
Console(config-if)#exit
Console(config)#interface ethernet 1/9
Console(config-if)#channel-group 1
Console(config-if)#exit
Console(config)#interface ethernet 1/10
Console(config-if)#channel-group 1
Console(config-if)#end
Console#show interfaces status port-channel 1
Information of Trunk 1
Basic information:
Port type:
Mac address:
Configuration:
Name:
Port admin:
Speed-duplex:
Capabilities:
Flow control:
Port security:
Max MAC count:
Current status:
Created by:
Link status:
Port operation status:
Operation speed-duplex: 1000full
Flow control type:
Member Ports: Eth1/9, Eth1/10,
Console#
Enabling LACP on Selected Ports
Command Usage
• To avoid creating a loop in the network, be sure
you enable LACP before connecting the ports,
and also disconnect the ports before disabling
LACP.
• If the target switch has also enabled LACP on the
connected ports, the trunk will be activated
automatically.
• A trunk formed with another switch using LACP
will automatically be assigned the next available
trunk ID.
• If more than eight ports attached to the same
target switch have LACP enabled, the additional ports will be placed in standby
mode, and will only be enabled if one of the active links fails.
• All ports on both ends of an LACP trunk must be configured for full duplex, either
by forced mode or auto-negotiation.
• Trunks dynamically established through LACP will also be shown in the Member
List on the Trunk Membership menu (see page 3-94).
100TX
00-30-F1-D4-73-A2
Up
Auto
10half, 10full, 100half, 100full, 1000full
Disabled
Disabled
0
User
Up
Up
None
Port Configuration
dynamically
enabled
active
links
configured
members
3
4-143
4-143
4-158
4-150
backup
link
3-95
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