Administrator Guide

LAG bundle. The functionality to detect the working efficiency of the LAG bundle interfaces is
automatically activated on all the port channels, except the port channel that is configured as a VLT
interconnect link, during the booting of the switch. This functionality is supported on I/O Aggregators in
stacking, standalone, and VLT modes and it is not supported in programmable MUX (PMUX) mode. By
default, this capability is enabled on all of the port channels set up on the switch.
You can use the show link-bundle-distribution port-channel interface-number command
to display the traffic-handling and utilization of the member interfaces of the port channel. The following
table describes the output fields of this show command.
Table 8. Output Field Descriptions for show link-bundle-distribution port-channel Command
Field Description
Link-bundle trigger threshold Threshold value that is the checkpoint, exceeding
which the link bundle is marked as being
overutilized and alarm is generated
LAG bundle number Number of the LAG bundle
Utilization (In Percent) Traffic usage in percentage of the packets
processed by the port channel
Alarm State Indicates whether an alarm is generated if over-
utilization of the port channel occurred. The value,
Active, is displayed for this field.
Interface Slot and port number, and the type of the member
interface of the port channel
Line Protocol Indicates whether the interface is administratively
up or down
Utilization (In Percent) Traffic usage in percentage of the packets
processed by the particular member interface
You can also use the show running-configuration interface port-channel command in EXEC
Privilege mode to view whether the mechanism to evaluate the utilization of the member interfaces of
the LAG bundle is enabled. The following sample output illustrates the portion of this show command:
Dell#show running-config int port-channel 1
!
interface Port-channel 1
mtu 12000
portmode hybrid
switchport
vlt-peer-lag port-channel 1
no shutdown
link-bundle-monitor enable
Verifying LACP Operation and LAG Configuration
To verify the operational status and configuration of a dynamically created LAG, and LACP operation on a
LAG on an Aggregator, enter the show interfaces port-channel port-channel-number and
show lacp port-channel-number commands.
The show outputs in this section for uplink LAG 128 and server-facing LAG 1 refer to the LACP Operation
on an Aggregator figure
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Link Aggregation