Administrator Guide

• 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 flooding (enabled)
• VLAN configuration (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 configure 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-Configured Settings
After the Aggregator powers on, it auto-configures and is operational with software features enabled,
including:
• Ports: Ports are administratively up and auto-configured to operate as hybrid ports to transmit tagged
and untagged VLAN traffic.For more information about how ports are numbered, refer to Port
Numbering.
• Link aggregation: All uplink ports are configured in a single LAG (LAG 128).
• VLANs: All ports are configured as members of all (4094) VLANs. All VLANs are up and can send or
receive layer 2 traffic. For more information, refer to VLAN Membership.
• Data center bridging capability exchange protocol (DCBx): Server-facing ports auto-configure in auto-
downstream port roles; uplink ports auto-configure 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.
• Link layer discovery protocol (LLDP): Enabled on all ports to advertise management TLV and system
name with neighboring devices.
• Internet small computer system interface (iSCSI)optimization.
• Internet group management protocol (IGMP) snooping.
• Jumbo frames: Ports are set to a maximum MTU of 12,000 bytes by default.
• Link tracking: Uplink-state group 1 is automatically configured. In uplink state-group 1, server-facing
ports auto-configure as downstream interfaces; the uplink port-channel (LAG 128) auto-configures as
an upstream interface. Server-facing links are auto-configured to be brought up only if the uplink port-
channel is up.
• In VLT mode, port 9 is automatically configured as VLT interconnect ports. VLT domain configuration is
automatic. This includes peer-link, configured MAC, backup link and setting every port channel as VLT
port-channel.
Data Center Bridging Support
To eliminate packet loss and provision links with required bandwidth, Data Center Bridging (DCB)
enhancements for data center networks are supported.
Before You Start 38