Allied Telesis AT-S82 Guida Utente

613-000375 Rev. CManagementSoftwareAT-S82User’s GuideFor the AT-GS950/8 Layer 2 Gigabit Ethernet WebSmart SwitchVersion 1.1.0

Preface10

11Chapter 1Getting StartedThis chapter provides information and instructions on how to access the AT-S82 Management Software by starting a web browser

Chapter 1: Getting Started12Starting a Management SessionYou establish a local management session with the AT-GS950/8 switch by connecting an Ethernet

AT-S82 Management Software User’s Guide13The main page, which by default displays the Basic Switch Information page, is shown in Figure 2.Figure 2. Ma

Chapter 1: Getting Started14Saving ChangesThe management software applies the changes you make when you click the Apply button on any web page. Howeve

AT-S82 Management Software User’s Guide15Quitting a Management SessionTo quit a management session, close the web browser.

Chapter 1: Getting Started16

17Chapter 2Basic Switch ParametersThis chapter contains the following sections: “Configuring the IP Address, Subnet Mask, Gateway Address, and BOOTP

Chapter 2: Basic Switch Parameters18Configuring the IP Address, Subnet Mask, Gateway Address, and BOOTP or DHCPThis procedure explains how to assign a

AT-S82 Management Software User’s Guide192. To set the switch’s IP address, in the Get IP Address field, choose one of the following from the list:Man

Copyright © 2008 Allied Telesis, Inc. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied

Chapter 2: Basic Switch Parameters20Disabling or Enabling Ping BlockingYou can allow the switch to respond to ping requests by setting the Ping Blocki

AT-S82 Management Software User’s Guide21Enabling or Disabling 802.1X Forwarding ControlThis procedure describes how to enable or disable 802.1x forwa

Chapter 2: Basic Switch Parameters22Changing the Administrator’s PasswordTo reset the administrator’s password, perform the following procedure:1. Fro

AT-S82 Management Software User’s Guide23Rebooting the SwitchThis procedure reboots the switch and reloads the AT-S82 Management Software from flash m

Chapter 2: Basic Switch Parameters24Resetting the Switch and Retaining the IP AddressThere are two options for resetting the switch:  Reset all the p

AT-S82 Management Software User’s Guide25Returning the AT-S82 Management Software to the Factory Default ValuesThis procedure returns all AT-S82 Manag

Chapter 2: Basic Switch Parameters26Downloading New FirmwareTo download new firmware onto the switch, perform the following procedure:1. From the main

27Chapter 3Port ConfigurationThis chapter contains the following section: “Configuring Port Parameters” on page 28

Chapter 3: Port Configuration28Configuring Port ParametersThis procedure explains how to configure the following port parameters: State Speed and du

AT-S82 Management Software User’s Guide29NoteAuto Speed/Duplex is disabled when you manually configure a port’s Speed/Duplex. In this situation, you m

3ContentsPreface ...

Chapter 3: Port Configuration30 10M/Half - 10Mbps, half duplex 10M/Full - 10Mbps, full duplex 100M/Half - 100Mbps, half duplex 100M/Full - 100Mbps

31Chapter 4TrunkingThis chapter contains the following sections: “Trunking Overview” on page 32 “Configuring the Trunking Algorithm” on page 34 “Se

Chapter 4: Trunking32Trunking OverviewA port trunk is an economical way for you to increase the bandwidth between the Ethernet switch and another netw

AT-S82 Management Software User’s Guide33TrunkingAlgorithmOne of the steps in creating a trunk is the selection of a load distribution method, also kn

Chapter 4: Trunking34Configuring the Trunking AlgorithmTo configure the trunk load method, perform the following procedure:1. From the main menu, sele

AT-S82 Management Software User’s Guide35Setting up the TrunkTo set up the trunk, perform the following procedure:1. From the main menu, select Port T

Chapter 4: Trunking363. For the Group ID, choose a trunk group ID from the list. IDs from 1 through 4 are available. Note that when you choose a group

37Chapter 5Port MirroringThis chapter contains the following sections: “Port Mirroring Overview” on page 38 “Configuring Port Mirroring” on page 39

Chapter 5: Port Mirroring38Port Mirroring OverviewThe port mirroring feature allows you to unobstrusively monitor the ingress and egress traffic on a

AT-S82 Management Software User’s Guide39Configuring Port Mirroring To configure port mirroring, perform the following procedure:1. From the main menu

Contents4Incoming and Outgoing Tagged and Untagged Frames ... 45Guidelines fo

Chapter 5: Port Mirroring406. To save the settings to the configuration file, from the main menu, select Save Configuration.The Save Configuration pag

41Chapter 6VLANsThis chapter contains the following sections: “VLAN Features” on page 42 “VLAN Overview” on page 44 “Working with VLANs” on page 47

Chapter 6: VLANs42VLAN FeaturesA Virtual Local Area Network (VLAN) is a logical grouping of devices on different physical LAN segments that allows use

AT-S82 Management Software User’s Guide43VLANs can be used to control the flow of data in your network, since the traffic generated by an end-node in

Chapter 6: VLANs44VLAN OverviewThis VLAN overview contains the following sections: “VLAN Name,” next “VLAN Identifier” on page 44 “VLAN Port Membe

AT-S82 Management Software User’s Guide45Tagged Port MembersA port is a tagged member of a specific VLAN when it is a member of more than one VLAN. If

Chapter 6: VLANs46The VLAN tag information in the header of the frame is stripped from the frame’s header if the tag matches the PVID of the port (an

AT-S82 Management Software User’s Guide47Working with VLANsThis section contains the following procedures for working with VLANs: “Creating a VLAN,”

Chapter 6: VLANs483. In the VID field, supply a number for the VLAN ID, from 2 to 4094.4. In the VLAN Name field, enter a unique name for the VLAN. No

AT-S82 Management Software User’s Guide49The list of current VLANs is shown in Figure 18.Figure 18. Current VLANs PageModifying aVLANTo modify the por

5FiguresFigure 1. Login Dialog Box ...

Chapter 6: VLANs50Protected Ports VLANYou use the protected ports VLAN feature when you want to prevent ports from communicating with one another, but

AT-S82 Management Software User’s Guide51To set up a protected ports VLAN, perform the following procedure:1. From the main menu, select Protected Por

Chapter 6: VLANs52

53Chapter 7Class of ServiceThis chapter contains the following sections: “Class of Service Overview” on page 54 “Mapping Priorities to Queues” on pa

Chapter 7: Class of Service54Class of Service OverviewWhen the egress queues on a port in an Ethernet switch contains more packets than the port can h

AT-S82 Management Software User’s Guide55Table 1 lists the mappings between the eight CoS priority levels and the four egress queues of a switch port.

Chapter 7: Class of Service56To set up scheduling, you need to specify the maximum number of packets a port should transmit from a queue before moving

AT-S82 Management Software User’s Guide57Mapping Priorities to QueuesTo map priorities to queues, perform the following procedure:1. From the main men

Chapter 7: Class of Service58Setting Up the ScheduleTo configure map ports to priority queues, perform the following procedure:1. From the main menu,

AT-S82 Management Software User’s Guide59Assigning Priority to PortsTo assign a priority to a specific port, perform the following procedure:1. From t

Figures6

Chapter 7: Class of Service60

61Chapter 8Spanning Tree Protocol (STP)This chapter contains the following sections: “Spanning Tree Overview” on page 62 “Configuring Spanning Tree”

Chapter 8: Spanning Tree Protocol (STP)62Spanning Tree OverviewThe performance of a Ethernet network can be negatively impacted by the formation of a

AT-S82 Management Software User’s Guide63You can change the bridge priority number in the AT-S82 Management Software. You can designate which switch o

Chapter 8: Spanning Tree Protocol (STP)64Path cost is determined through an evaluation of port costs. Every port on a bridge participating in STP has

AT-S82 Management Software User’s Guide65Table 7 lists the RSTP port costs with Auto when the port is part of a port trunk.NoteYou cannot set the port

Chapter 8: Spanning Tree Protocol (STP)66may trigger a change in the state of some blocked ports. However, a change in a port state is not activated i

AT-S82 Management Software User’s Guide67Point-to-Point and Edge PortsNoteThis section applies only to RSTP.Part of the task of configuring RSTP is de

Chapter 8: Spanning Tree Protocol (STP)68Figure 26. Edge PortA port can be both a point-to-point and an edge port at the same time. It operates in ful

AT-S82 Management Software User’s Guide69RSTP IEEE 802.1w is fully compliant with STP IEEE 802.1d. Your network can consist of bridges running both pr

7PrefaceThis guide contains instructions on how to use the AT-S82 management software to manage the AT-GS950/8 WebSmart Switch. This preface contains

Chapter 8: Spanning Tree Protocol (STP)70You can avoid this problem by not activating spanning tree or by connecting VLANs using tagged instead of unt

AT-S82 Management Software User’s Guide71Configuring Spanning TreeTo define the spanning tree settings at the switch level, perform the following proc

Chapter 8: Spanning Tree Protocol (STP)72When you select a value for maximum age, observe the following rules:MaxAge must be greater than (2 x (HelloT

AT-S82 Management Software User’s Guide739. From the Forwarding BPDU list, select one of the following:EnabledThe AT-GS950/8 WebSmart switch does not

Chapter 8: Spanning Tree Protocol (STP)74Configuring STP Port SettingsTo configure the STP settings, perform the following procedure:1. From the main

AT-S82 Management Software User’s Guide75This parameter is used as a tie breaker when two or more ports are determined to have equal costs to the root

Chapter 8: Spanning Tree Protocol (STP)76

Preface8Where to Find Web-based GuidesThe installation and user guides for all Allied Telesis products are available in portable document format (PDF)

AT-S82 Management Software User’s Guide9Contacting Allied Telesis This section provides Allied Telesis contact information for technical support as we