Lenovo Flex System Fabric CN4093 Application Manual page 164

1. Connect the switch ports that will be members in the LAG.
2. Configure the LAG using these steps on the CN4093:
3. Repeat the process on the other switch.
4. Examine the aggregation information on each switch.
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CN4093 Application Guide for N/OS 8.4
a. Define a LAG.
CN 4093(config)# portchannel 1 port ext1,ext2,ext3 (Add ports to LAG 1)
CN 4093(config)# portchannel 1 enable
b. Verify the configuration.
CN 4093(config)# show portchannel information
Examine the resulting information. If any settings are incorrect, make
appropriate changes.
CN 4093(config)# portchannel 3 port 2,12,22
CN 4093(config)# portchannel 3 enable
LAG 1 (on the CN4093) is now connected to LAG 3 on the Application Switch.
Note: In this example, a CN4093 and an application switch are used. If a
third‐party device supporting link aggregation is used (such as Cisco routers and
switches with EtherChannel technology or Sunʹs Quad Fast Ethernet Adapter),
LAGs on the third‐party device should be configured manually. Connection
problems could arise when using automatic LAG negotiation on the third‐party
device.
CN 4093# show portchannel information (View aggregation information)
Information about each port in each configured LAG is displayed. Make sure
that LAGs consist of the expected ports and that each port is in the expected
state.
The following restrictions apply:
 Any physical switch port can belong to only one LAG.
 Up to 24 ports can belong to the same LAG.
 All ports in static LAGs must be have the same link configuration (speed,
duplex, flow control).
Aggregation from third‐party devices must comply with Cisco

technology.
® ®
EtherChannel