Lenovo Flex System Fabric CN4093, Application Manual

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CN4093 Application Guide for N/OS 8.4
1.
Connect the switch ports that will be members in the LAG.
2.
Configure the LAG using these steps on the CN4093:
a.
Define a LAG.
b.
Verify the configuration.
Examine the resulting information. If any settings are incorrect, make
appropriate changes.
3.
Repeat the process on the other switch.
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 Sun ʹ s 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.
4.
Examine the aggregation information on each switch.
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
®
EtherChannel
®
technology.
CN 4093(config)# portchannel 1 port ext1,ext2,ext3
(Add ports to LAG 1)
CN 4093(config)# portchannel 1 enable
CN 4093(config)# show portchannel information
CN 4093(config)# portchannel 3 port 2,12,22
CN 4093(config)# portchannel 3 enable
CN 4093# show portchannel information
(View aggregation information)