CLI Guide

Uplink Failure Detection

By default, all server-facing ports are tracked by the operational status of the uplink LAG. If the uplink LAG

goes down, the Aggregator loses its connectivity and is no longer operational; all server-facing ports are

brought down.

NOTE: If installed servers do not have connectivity to a ToR switch, check the Link Status LED of

uplink ports on the Aggregator. If all LEDs are ON, check the LACP configuration on the ToR switch

that is connected to the Aggregator to ensure the LACP is correctly configured.

VLANs

By default, all Aggregator ports belong to all 4094 VLANs and are members of untagged VLAN 1. You can

use the CLI or CMC interface to configure only the required VLANs on a port.

When you configure VLANs on server-facing interfaces (ports 1 to 8), you can assign VLANs to a port or a

range of ports by entering the vlan tagged or vlan untagged commands in interface configuration mode;

for example:

Dell(conf)# interface tengigabitethernet 0/2 - 4

Dell(conf-if-range-te-0/2-4)# vlan tagged 5,7,10-12

Dell(conf-if-range-te-0/2-4)# vlan untagged 3

NOTE: You can also use the CMC interface to configure VLANs.

Uplink LAG

The tagged VLAN membership of the uplink LAG is automatically configured based on the tagged and

untagged VLAN configuration of all server-facing ports (ports 1 to 8).

The untagged VLAN used for the uplink LAG is always the default VLAN.

Server-Facing LAGs

The tagged VLAN membership of a server-facing LAG is automatically configured based on the server-

facing ports that are members of the LAG.

The untagged VLAN of a server-facing LAG is configured based on the untagged VLAN to which the

lowest numbered server-facing port in the LAG belongs.

NOTE: Dell Networking recommends that you configure the same VLAN membership on all LAG

member ports.

Stacking Mode

When you configure an Aggregator to operate in stacking mode (See “Configuring and Bringing Up a

Stack” in the Dell Networking Configuration Guide for the M I/O Aggregator), VLANs are reconfigured as

follows:

If an Aggregator port belonged to all 4094 VLANs in standalone mode (default), all VLAN membership is

removed and the port is assigned only to default VLAN 1. You must configure additional VLAN

membership as necessary.

Before You Start