Port Channel Commands; Time Domain Reflectometer (Tdr) Commands; Important Points To Remember - Dell PowerEdge M I/O Aggregator Reference Manual

Port Channel Commands

Time Domain Reflectometer (TDR) Commands

Important Points to Remember

128 | Interfaces
A link aggregation group (LAG) is a group of links that appear to a MAC client as if they were a single
link according to IEEE 802.3ad. In FTOS, a LAG is referred to as a Port Channel.
Table 11-1. Port Channel Limits
Platform
M I/O Aggregator
Because each port can be assigned to only one Port Channel, and each Port Channel must have at least
one port, some of those nominally available Port Channels might have no function because they could
have no members if there are not enough ports installed. In the
provided by stack members.
The commands in this section are specific to Port Channel interfaces:
• auto vlan
• group
• monitor interface
• show config (from INTERFACE RANGE mode)
• show interfaces port-channel
Note:
The FTOS implementation of LAG or Port Channel requires that you configure a LAG
on both switches manually. For information on FTOS Link Aggregation Control Protocol
(LACP) for dynamic LAGs, refer to
For more information on configuring and using Port Channels, refer to the Dell PowerEdge
Configuration Guide for the M I/O Aggregator.
Time domain reflectormeter (TDR) is useful for troubleshooting an interface that is not establishing a
link; either it is flapping or not coming up at all. TDR detects open or short conditions of copper cables
on 100/1000/10GBase-T modules.
• tdr-cable-test
• show tdr
The interface and port must be enabled (configured—see the interface command) before running
•
TDR. An error message is generated if you have not enabled the interface.
• The interface on the far-end device must be shut down before running TDR.
• Because TDR is an intrusive test on an interface that is not establishing a link, do not run TDR on
an interface that is passing traffic.
• When testing between two devices, do not run the test on both ends of the cable.
Maximum Port Channel
IDs
128
M I/O Aggregator
Chapter 14, Link Aggregation Control Protocol
Maximum Members per Port
Channel
16
, those ports could be
(LACP).