S e n d f e e d b a c k t o n x 5 0 0 0 - d o c f e e d b a c k @ c i s c o . c o m
11-3
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 11 Configuring EtherChannels
Information About EtherChannels
•
802.3x flow control setting
•
MTU
The Cisco Nexus 5000 Series switch only supports system level MTU. This attribute cannot be
changed on an individual port basis.
•
Broadcast/Unicast/Multicast Storm Control setting
•
Priority-Flow-Control
•
Untagged CoS
Use the
show port-channel compatibility-parameters
command to see the full list of compatibility
checks that Cisco NX-OS uses.
You can only add interfaces configured with the channel mode set to
on
to static EtherChannels. You can
also only add interfaces configured with the channel mode as
active
or
passive
to EtherChannels that
are running LACP. (See the
“Port-Channel Modes” section on page 11-6
for information on port-channel
modes.) You can configure these attributes on an individual member port.
When the interface joins an EtherChannel, the following individual parameters are replaced with the
values on the EtherChannel:
•
Bandwidth
•
MAC address
•
Spanning Tree Protocol
The following interface parameters remain unaffected when the interface joins an EtherChannel:
•
Description
•
CDP
•
LACP port priority
•
Debounce
Load Balancing Using EtherChannels
Cisco NX-OS load balances traffic across all operational interfaces in an EtherChannel by reducing part
of the binary pattern formed from the addresses in the frame to a numerical value that selects one of the
links in the channel. EtherChannels provide load balancing by default and the basic configuration uses
the following criteria to select the link:
•
For a Layer 2 frame, it uses the source and destination MAC addresses.
•
For a Layer 3 frame, it uses the source and destination MAC addresses and the source and
destination IP addresses.
•
For a Layer 4 frame, it uses the source and destination MAC addresses, the source and destination
IP addresses, and the source and destination port number.
You can configure the switch to use one of the following methods to load balance across the
EtherChannel:
•
Destination MAC address
•
Source MAC address
•
Source and destination MAC address
•
Destination IP address
Summary of Contents for N5010P-N2K-BE
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