Users Guide

Congure the Network Time Protocol...................................................................................................................841
Enabling NTP............................................................................................................................................................842
Conguring NTP Broadcasts..................................................................................................................................842
Disabling NTP on an Interface................................................................................................................................842
Conguring a Source IP Address for NTP Packets............................................................................................. 843
Conguring NTP Authentication............................................................................................................................843
Dell Networking OS Time and Date.............................................................................................................................845
Conguration Task List ...........................................................................................................................................845
Set Daylight Saving Time........................................................................................................................................846
Conguring the Oset-Threshold for NTP Audit Log......................................................................................... 848
59 Tunneling ................................................................................................................................................ 849
Conguring a Tunnel......................................................................................................................................................849
Conguring Tunnel keepalive....................................................................................................................................... 850
Conguring the ip and ipv6 unnumbered................................................................................................................... 850
Conguring the Tunnel allow-remote...........................................................................................................................851
Conguring the Tunnel Source Anylocal......................................................................................................................851
60 Uplink Failure Detection (UFD)................................................................................................................ 853
Supported Modes..........................................................................................................................................................853
Feature Description....................................................................................................................................................... 853
How Uplink Failure Detection Works...........................................................................................................................854
UFD and NIC Teaming...................................................................................................................................................855
Important Points to Remember................................................................................................................................... 856
Uplink Failure Detection (SMUX mode)......................................................................................................................856
Conguring Uplink Failure Detection (PMUX mode).................................................................................................857
Clearing a UFD-Disabled Interface (in PMUX mode)................................................................................................858
Displaying Uplink Failure Detection..............................................................................................................................859
Sample Conguration: Uplink Failure Detection..........................................................................................................861
61 PMUX Mode of the IO Aggregator........................................................................................................... 863
I/O Aggregator (IOA) Programmable MUX (PMUX) Mode.....................................................................................863
Conguring and Changing to PMUX Mode............................................................................................................... 863
Conguring the Commands without a Separate User Account.............................................................................. 864
Virtual Link Trunking (VLT)...........................................................................................................................................864
Overview...................................................................................................................................................................864
Setting up VLT......................................................................................................................................................... 865
VLT Terminology...................................................................................................................................................... 866
Congure Virtual Link Trunking..............................................................................................................................866
Verifying a VLT Conguration.................................................................................................................................870
VLT Sample Congurations.....................................................................................................................................873
Troubleshooting VLT................................................................................................................................................875
62 NPIV Proxy Gateway................................................................................................................................877
NPIV Proxy Gateway Conguration.............................................................................................................................877
NPIV Proxy Gateway Operations and Capabilities..................................................................................................... 877
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