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«Dell™ Networking™ X1000 and X4000 Series Switches User Guide FILE LOCATION: C:\Users\vijaya_devakumar_dev\Documents\PowerConnect\Astute\Docs for ...»

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Dell™ Networking™ X1000

and X4000 Series Switches

User Guide

FILE LOCATION: C:\Users\vijaya_devakumar_dev\Documents\PowerConnect\Astute\Docs for

Web Posting\Astute_Admin_Guide_sources_MIF7\FM\Dell_AstuteCover.fm

D E L L C O N F I D E N T I A L – P R E L I M I N A R Y 3 / 1 9 / 1 5 – F O R P R O O F O N LY

Template Last Updated -03/06/2010

FILE LOCATION: C:\Users\vijaya_devakumar_dev\Documents\PowerConnect\Astute\Docs for Web

Notes, Cautions, and Warnings

NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates either potential damage to hardware, or loss of data and tells you how to avoid the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

____________________

© Copyright © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.

February 2015 Rev. A00 DELL CONFIDENTIAL – PRELIMINARY 3/19/15 – FOR PROOF ONLY

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C:\Users\vijaya_devakumar_dev\Documents\PowerConnect\Astute\Docs for Web Posting\Astute_Admin_Guide_sources_MIF7\FM\Dell_AstuteUG_PrintTOC.fm Table of Contents Table of Contents. 3

1 Preface 13

2 Features. 15

MAC Address Capacity Support. 17............

Layer 2 Features 18

VLAN Supported Features. 19...............

Spanning Tree Protocol Features 21............

Quality of Service Features 23...............

Device Management Features. 24.............

Security Features 27

3 Hardware Description. 33..............

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4 Contents

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6 Contents

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8 Contents

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10 Contents

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12 Contents Preface This guide contains the information needed for configuring and maintaining the Dell™ Networking™ X1000 and X4000 Series devices through the Dell Networking Administrator.

For explanation of acronyms, refer to the Glossary.

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D E L L C O N F I D E N T I A L – P R E L I M I N A R Y 3 / 1 9 / 1 5 - F O R P R O O F O N LY

14 Preface

Features This section describes the features of the Dell™ Networking™ X1000 and X4000 Series devices.

For a complete list of all updated device features, see the Release Notes included in the latest version of software released at dell.com/support.

This section provides a brief description of the following features:

• IP Version 6 (IPv6) Support

• Head of Line Blocking Prevention

• Back Pressure Support

• Virtual Cable Testing (VCT)

• Auto-Negotiation

• MDI/MDIX Support

• MAC Address Capacity Support

• Layer 2 Features

• IGMP Snooping

• MLD Snooping

• Port and VLAN Mirroring

• Broadcast Storm Control

• VLAN Support

• Spanning Tree Protocol Features

• Link Aggregation

• Quality of Service Features

• Device Management Features

• Security Features

• DHCP Server

• Protected Ports

• Proprietary Protocol Filtering

–  –  –

IP Version 6 (IPv6) Support The device functions as an IPv6-compliant host, as well as an IPv4 host (also known as dual stack). This enables device operation in a pure IPv6 network as well as in a combined IPv4/IPv6 network.

For more information, see IPv6 Addressing.

Head of Line Blocking Prevention Head of Line (HOL) blocking results in traffic delays and frame loss caused by traffic competing for the same egress port resources. The switch prevents HOL blocking by queueing packets, such that packets in the front of a queue do not block the packets behind if they are to be sent to different ports.

Back Pressure Support On half-duplex links, the receiving port prevents buffer overflows by occupying the link so that it is unavailable for additional traffic.

For more information, see Back Pressure.





Virtual Cable Testing (VCT) VCT detects and reports copper link cabling faults, such as open cables and cable shorts.

For more information, see Diagnostics.

Auto-Negotiation Auto-negotiation enables the device to advertise modes of operation. The auto-negotiation function enables an exchange of information between two devices that share a point-to-point link segment, and automatically configures both devices to take maximum advantage of their transmission capabilities.

D E L L C O N F I D E N T I A L – P R E L I M I N A R Y 3 / 1 9 / 1 5 - F O R P R O O F O N LY 16 Features FILE LOCATION: C:\Users\vijaya_devakumar_dev\Documents\PowerConnect\Astute\Docs for Web Posting\Astute_Admin_Guide_sources_MIF7\FM\Dell_Astute_Features.fm The devices enhance auto-negotiation by providing port advertisement. Port advertisement enables the system administrator to configure the port speeds that are advertised.

For more information, see Network Administration: Port Settings.

MDI/MDIX Support Standard wiring for end stations is known as Media-Dependent Interface (MDI), and standard wiring for hubs and switches is known as MediaDependent Interface with Crossover (MDIX).

If auto-negotiation is enabled, the device automatically detects whether the cable connected to an RJ-45 port is MDIX (crossed) or MDI (straight). This enables both types to be used interchangeably.

If auto-negotiation is disabled, only MDI (straight) cables can be used.

For more information, see MDI/MDIX.

MAC Address Capacity Support MAC Address Capacity Support All SKUs support up to 16K MAC addresses except for the X4012 that supports 32K addresses. They reserve specific MAC addresses for system use.

For more information, see Address Tables.

Static MAC Entries MAC entries can be manually entered in the Bridging Table, as an alternative to learning them from incoming frames. These user-defined entries are not subject to aging and are preserved across reset to reboots.

For more information, see Address Tables.

Self-Learning MAC Addresses The device enables controlled MAC address learning from incoming packets.

The MAC addresses are stored in the Dynamic Address Table.

For more information, see Address Tables.

–  –  –

Automatic Aging for MAC Addresses MAC addresses from which no traffic is received for a given period, are aged out. This frees Bridging Table resources for learning new MAC addresses.

For more information, see Address Tables.

VLAN-Aware MAC-Based Switching The device always performs VLAN-aware bridging. VLAN-aware bridges perform VLAN-based MAC address learning and forwarding. Frames addressed to a unknown destination MAC address are flooded to all ports of the relevant VLAN.

This is a standard feature.

MAC Multicast Support Multicast service is a service that enables one-to-many and many-to-many communication for information distribution. In Layer 2 Multicast service, a single frame is addressed to a specific Multicast address, from which copies of the frame are transmitted to the relevant ports. When Multicast groups are statically enabled, you can set the destination port of registered groups, as well as define the behavior of unregistered Multicast frames.

For more information, see Network Administration: Multicast.

Layer 2 Features IGMP Snooping Internet Group Management Protocol (IGMP) Snooping examines IGMP frame contents, when they are forwarded by the device from work stations to an upstream Multicast router. From the frame data, the device identifies work stations configured for Multicast sessions, and which Multicast routers are sending Multicast frames. The IGMP Querier simulates the behavior of a Multicast router. This enables snooping of the Layer 2 Multicast domain even if there is no Multicast router.

For more information, see IGMP Snooping.

D E L L C O N F I D E N T I A L – P R E L I M I N A R Y 3 / 1 9 / 1 5 - F O R P R O O F O N LY 18 Features FILE LOCATION: C:\Users\vijaya_devakumar_dev\Documents\PowerConnect\Astute\Docs for Web Posting\Astute_Admin_Guide_sources_MIF7\FM\Dell_Astute_Features.fm MLD Snooping Multicast Listener Discovery (MLD) Snooping performs the function of IGMP Snooping for IPv6.

For more information, see MLD Snooping.

Port and VLAN Mirroring Port and VLAN mirroring monitors network traffic by forwarding copies of incoming and outgoing packets from a monitored port to a monitoring port.

Users specify which target port receives copies of all traffic passing through a specified source port.

For more information, see Port and VLAN Mirrorings.

Broadcast Storm Control Storm Control limits the number of Multicast and Broadcast frames accepted and forwarded by the device.

When Layer 2 frames are forwarded, Broadcast and Multicast frames are forwarded to multiple ports on the relevant VLAN and excess Broadcast and Multicast could degrade network performance and disrupt services.

For more information, see Storm Control Configuration.

VLAN Supported Features VLAN Support VLANs are collections of switching ports that comprise a single Broadcast domain. Packets are classified as belonging to a VLAN, based on either the VLAN tag or on a combination of the ingress port and packet contents.

Packets sharing common attributes can be grouped in the same VLAN.

For more information, see VLAN Membership.

Port-Based Virtual LANs (VLANs) Port-based VLANs classify incoming packets to VLANs, based on their ingress port.

For more information, see VLAN Membership.

–  –  –

Full 802.1Q VLAN Tagging Compliance IEEE 802.

1Q defines an architecture for virtual, bridged LANs, the services provided in VLANs, and the protocols and algorithms involved in the provision of these services.

For more information, see VLAN Overview.

GVRP Support GARP VLAN Registration Protocol (GVRP) provides IEEE 802.1Qcompliant VLAN pruning and dynamic VLAN creation on 802.1Q trunk ports. When GVRP is enabled, the device registers and propagates VLAN membership on all ports that are part of the active underlying Spanning Tree Protocol topology.

For more information, see GVRP Parameters.

Voice VLAN Voice VLAN enables network administrators to enhance VoIP service by configuring ports to carry IP voice traffic from IP phones on a specific VLAN.

VoIP traffic has a preconfigured Organizationally Unique Identifiers (OUI) prefix in the source MAC address. Network administrators can configure VLANs from which voice IP traffic is forwarded. Non-VoIP traffic is dropped from the Voice VLAN in Auto-Voice VLAN Secure mode. Voice VLAN also provides QoS to VoIP, ensuring that the quality of voice does not deteriorate if the IP traffic is received unevenly.

The default secure mode is supported.

For more information, see Voice VLAN.

Guest VLAN Guest VLAN provides limited network access to unauthorized ports. If a port is denied network access via port-based authorization, but the Guest VLAN is enabled, the port receives limited network access through the Guest VLAN.

For more information, see Dot1x Authentications.

D E L L C O N F I D E N T I A L – P R E L I M I N A R Y 3 / 1 9 / 1 5 - F O R P R O O F O N LY 20 Features FILE LOCATION: C:\Users\vijaya_devakumar_dev\Documents\PowerConnect\Astute\Docs for Web Posting\Astute_Admin_Guide_sources_MIF7\FM\Dell_Astute_Features.fm Private VLAN The Private VLAN feature provides Layer 2 isolation between ports that share the same Broadcast domain, or in other words, it creates a point-tomultipoint Broadcast domain. The ports can be located anywhere in the Layer 2 network.

For more information, see Private VLAN.

Multicast TV VLAN The Multicast TV VLAN feature provides the ability to supply multicast transmissions to Layer 2-isolated subscribers, without replicating the multicast transmissions for each subscriber VLAN. The subscribers are the only receivers of the multicast transmissions.

For more information, see Multicast TV VLAN.

Spanning Tree Protocol Features Spanning Tree Protocol (STP)

802.1d Spanning Tree is a standard Layer 2 switch requirement that enables bridges to automatically prevent and resolve Layer 2 forwarding loops.

Switches exchange configuration messages using specifically-formatted frames, and selectively enable and disable forwarding on ports.

For more information, see Rapid Spanning Tree.

Fast Link STP can take 30–60 seconds to converge. During this time, STP detects possible loops, enabling time for status changes to propagate and for relevant devices to respond. This period of 30-60 seconds is considered too long a response time for many applications. The Fast Link option bypasses this delay, and can be used in network topologies where forwarding loops do not occur, for example, on edge ports connecting to endpoint devices.

For more information on enabling Fast Link for ports and LAGs, see Rapid Spanning Tree.

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