Deployment Guide

For more information on the PMUX mode, see PMUX Mode of the IO Aggregator.

Stacking mode

stack-unit unit iom-mode stack

CONFIGURATION mode

Dell(conf)#stack-unit 0 iom-mode stack

Select this mode to congure Stacking mode CLI commands.

For more information on the Stacking mode, see Stacking.

Default Settings

The I/O Aggregator provides zero-touch conguration with the following default conguration settings:

• default user name (root)

• password (calvin)

• VLAN (vlan1) and IP address for in-band management (DHCP)

• IP address for out-of-band (OOB) management (DHCP)

• read-only SNMP community name (public)

• broadcast storm control (enabled in Standalone mode and disabled in VLT mode)

• IGMP multicast ooding (enabled)

• VLAN conguration (in Standalone mode, all ports belong to all VLANs)

You can change any of these default settings using the CLI. Refer to the appropriate chapter for details.

NOTE

: You can also change many of the default settings using the chassis management controller (CMC) interface. For

information about how to access the CMC to congure the aggregator, refer to the

Dell Chassis Management Controller (CMC)

User’s Guide

on the Dell Support website at http://support.dell.com/

Other Auto-Congured Settings

After the Aggregator powers on, it auto-congures and is operational with software features enabled, including:

• Ports: Ports are administratively up and auto-congured to operate as hybrid ports to transmit tagged and untagged VLAN trac.

Ports 1 to 32 are internal server-facing ports, which can operate in 10GbE mode. Ports 33 to 56 are external ports auto-congured to

operate by default as follows:

• The base-module ports operate in standalone 4x10GbE mode. You can congure these ports to operate in 40GbE stacking mode.

When congured for stacking, you cannot use 40GbE base-module ports for uplinks.

• Ports on the 2-Port 40-GbE QSFP+ module operate only in 4x10GbE mode. You cannot use them for stacking.

• Ports on the 4-Port 10-GbE SFP+ and 4-Port 10GBASE-T modules operate only in 10GbE mode.

For more information about how ports are numbered, refer to Port Numbering.

• Link aggregation: All uplink ports are congured in a single LAG (LAG 128).

• VLANs: All ports are congured as members of all (4094) VLANs. All VLANs are up and can send or receive layer 2 trac. For more

information, refer to VLAN Membership.

• Data center bridging capability exchange protocol (DCBx): Server-facing ports auto-congure in auto-downstream port roles; uplink

ports auto-congure in auto-upstream port roles.

• Fibre Channel over Ethernet (FCoE) connectivity and FCoE initiation protocol (FIP) snooping: The uplink port channel (LAG 128) is

enabled to operate in Fibre channel forwarder (FCF) port mode.

Before You Start