Users Guide

• show interfaces port-channel
NOTE: The Dell Networking OS implementation of LAG or Port Channel requires that you configure a LAG on both switches
manually. For information about Dell Networking OS link aggregation control protocol (LACP) for dynamic LAGs, refer to the
Link Aggregation Control Protocol (LACP) chapter. For more information about configuring and using Port Channels, refer to
the Dell PowerEdge M I/O Aggregator Configuration Guide
Time Domain Reflectometer (TDR) Commands
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 100/1000/10G Base-T modules.
• tdr-cable-test
• show tdr
Important Points to Remember
• 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.
Virtual LAN (VLAN) Commands
The following commands configure and monitor virtual local area networks (VLANs). VLANs are a virtual interface and use many of the
same commands as physical interfaces.
You can configure an IP address only on the default VLAN. FTP, TFTP, ACLs, and SNMP are not supported on a VLAN.
Occasionally, while sending broadcast traffic over multiple VLANs, state of a VLAN interface may continually switch between Master and
Backup.
• auto vlan
• default vlan-id
• name
• show config (from INTERFACE VLAN mode)
• show vlan
• vlan tagged
• vlan untagged
auto vlan
Change the port to auto or admin vlan mode (enable or disable all auto VLANs).
Syntax
auto vlan
To remove membership from 4K VLAN, use the no auto vlan command.
Defaults none
Interfaces 191