4-26 Dell PowerVault 720N, 740N, and 760N System Administrator and Command Reference Guide
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To create a second-level virtual interface on a single filer, complete the following
steps:
1. Enter the following commands to create two multiple-mode interfaces:
YLIFUHDWHPXOWLWUXQNLILI
YLIFUHDWHPXOWLWUXQNLILI
WUXQN and WUXQNare the names of the trunks.

if1

,

if2

,

if3

, and

if4

are interfaces.
2. Enter the following command to create a single-mode interface from the multi-
ple-mode interfaces:
YLIFUHDWHVLQJOHVHFRQGOHYWUXQNWUXQN
VHFRQGOHYis the name of a second-level virtual interface.
WUXQN and WUXQNare the names of the trunks.
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The following commands create the second-level virtual interface shown in Example
of a Second-Level Virtual Interface on a Single Filer.
vif create multi Firstlev1 e0 e1
vif create multi Firstlev2 e2 e3
vif create single Secondlev Firstlev1 Firstlev2
$GGLQJ3K\VLFDO,QWHUIDFHVWRD7UXQN
'HVFULSWLRQ
Use this procedure to add one or more physical interfaces to a trunk. After you com-
plete this procedure, you get the following results, depending on the type of trunk you
are configuring:
For a single-mode trunk, you get improved reliability by providing additional inter-
faces to fall back on.
For a multiple-mode trunk, you get improved throughput.
You can perform this procedure any time after the trunk you are adding interfaces to
has been created. You must also configure the switch for the additional ports and
physical interfaces available for the additions to take effect.