Implementation Guide
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...11 Documentation Comments 11 1 SWITCH FEATURES OVERVIEW What is Management Software? 15 Switch Features Explained 15 Automatic IP Configuration 16 Security 16 Aggregated Links 16 Auto-negotiation 17 Multicast Filtering 18 Spanning Tree Protocol and Rapid Spanning Tree Protocol 18 Switch Database 19 Traffic Prioritization 19... RMON 20 Broadcast Storm Control 20 VLANs 20 Configuration Save and Restore 20 2 OPTIMIZING BANDWIDTH Port Features 23 Duplex 23 Flow Control 24 Auto-negotiation 24 ...
...11 Documentation Comments 11 1 SWITCH FEATURES OVERVIEW What is Management Software? 15 Switch Features Explained 15 Automatic IP Configuration 16 Security 16 Aggregated Links 16 Auto-negotiation 17 Multicast Filtering 18 Spanning Tree Protocol and Rapid Spanning Tree Protocol 18 Switch Database 19 Traffic Prioritization 19... RMON 20 Broadcast Storm Control 20 VLANs 20 Configuration Save and Restore 20 2 OPTIMIZING BANDWIDTH Port Features 23 Duplex 23 Flow Control 24 Auto-negotiation 24 ...
Implementation Guide
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... MULTICAST FILTERING What is an IP Multicast? 33 Benefits of Multicast 34 Multicast Filtering 34 Multicast Filtering and Your Switch 35 IGMP Multicast Filtering 36 4 USING RESILIENCE FEATURES Spanning Tree Protocol (STP) 39 Rapid Spanning Tree Protocol (RSTP) 40 What is STP? 41 How STP ...Example 45 STP Configurations 46 Using STP on a Network with Multiple VLANs 48 5 USING THE SWITCH DATABASE What is the Switch Database? 49 How Switch Database Entries Get Added 49 Switch Database Entry States 50 6 USING TRAFFIC PRIORITIZATION What is Traffic Prioritization? 51 How Traffic Prioritization Works...
... MULTICAST FILTERING What is an IP Multicast? 33 Benefits of Multicast 34 Multicast Filtering 34 Multicast Filtering and Your Switch 35 IGMP Multicast Filtering 36 4 USING RESILIENCE FEATURES Spanning Tree Protocol (STP) 39 Rapid Spanning Tree Protocol (RSTP) 40 What is STP? 41 How STP ...Example 45 STP Configurations 46 Using STP on a Network with Multiple VLANs 48 5 USING THE SWITCH DATABASE What is the Switch Database? 49 How Switch Database Entries Get Added 49 Switch Database Entry States 50 6 USING TRAFFIC PRIORITIZATION What is Traffic Prioritization? 51 How Traffic Prioritization Works...
Implementation Guide
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... Auto VLAN Assignment 83 Important Considerations 83 What is Disconnect Unauthorized Device (DUD)? 85 How DUD Works 85 What is RADIUS? 85 11 USING SWITCH CONFIGURATION FEATURES Configuration Save and Restore 87 Upgrading Management Software 89 A CONFIGURATION RULES Configuration Rules for Gigabit Ethernet 93 Configuration Rules for Fast Ethernet 94 Configuration Rules...
... Auto VLAN Assignment 83 Important Considerations 83 What is Disconnect Unauthorized Device (DUD)? 85 How DUD Works 85 What is RADIUS? 85 11 USING SWITCH CONFIGURATION FEATURES Configuration Save and Restore 87 Upgrading Management Software 89 A CONFIGURATION RULES Configuration Rules for Gigabit Ethernet 93 Configuration Rules for Fast Ethernet 94 Configuration Rules...
Implementation Guide
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... Interface Reference Guide supplied in the SuperStack® 3 Switch 4200 Family. It outlines how to use these features to optimize the performance of your Switch. ABOUT THIS GUIDE This guide describes the features of the units in HTML format on the 3Com World Wide Web site: http://www.3com.com/ Please note that are used to interconnect...
... Interface Reference Guide supplied in the SuperStack® 3 Switch 4200 Family. It outlines how to use these features to optimize the performance of your Switch. ABOUT THIS GUIDE This guide describes the features of the units in HTML format on the 3Com World Wide Web site: http://www.3com.com/ Please note that are used to interconnect...
Implementation Guide
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...; Denote a new term at the place where it appears on the screen. Table 1 Notice Icons Icon Notice Type Description Information note Information that describes important features or instructions Caution Information that alerts you to potential personal injury Table 2 Text Conventions Convention Description Screen displays This typeface represents information as shown and...
...; Denote a new term at the place where it appears on the screen. Table 1 Notice Icons Icon Notice Type Description Information note Information that describes important features or instructions Caution Information that alerts you to potential personal injury Table 2 Text Conventions Convention Description Screen displays This typeface represents information as shown and...
Implementation Guide
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... A list of the features supported by the Switch ■ A summary of the web interface operations and CLI commands that enable you to manage the Switch. Please e-mail comments ...about the web interface operations and CLI (command line interface) commands that accompanies your Switch. It contains an explanation for each Switch documentation set up the Switch... Switch. ■ Release Notes These notes provide information about the current software release, including new features, modifications, and known problems. Your suggestions are very important to us...
... A list of the features supported by the Switch ■ A summary of the web interface operations and CLI commands that enable you to manage the Switch. Please e-mail comments ...about the web interface operations and CLI (command line interface) commands that accompanies your Switch. It contains an explanation for each Switch documentation set up the Switch... Switch. ■ Release Notes These notes provide information about the current software release, including new features, modifications, and known problems. Your suggestions are very important to us...
Implementation Guide
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I SWITCH FEATURES Chapter 1 Switch Features Overview Chapter 2 Optimizing Bandwidth Chapter 3 Using Multicast Filtering Chapter 4 Using Resilience Features Chapter 5 Using the Switch Database Chapter 6 Using Traffic Prioritization Chapter 7 Status Monitoring and Statistics Chapter 8 Setting Up Virtual LANs Chapter 9 Using Automatic IP Configuration Chapter 10 Making Your Network Secure Chapter 11 IP Addressing
I SWITCH FEATURES Chapter 1 Switch Features Overview Chapter 2 Optimizing Bandwidth Chapter 3 Using Multicast Filtering Chapter 4 Using Resilience Features Chapter 5 Using the Switch Database Chapter 6 Using Traffic Prioritization Chapter 7 Status Monitoring and Statistics Chapter 8 Setting Up Virtual LANs Chapter 9 Using Automatic IP Configuration Chapter 10 Making Your Network Secure Chapter 11 IP Addressing
Implementation Guide
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...way it works, you with the capability to manage the Switch. It covers the following topics: ■ What is Management Software? ■ Switch Features Explained For detailed descriptions of the Switch features. The management software provides you have to access the ...of the Getting Started Guide that accompanies your Switch. Switch Features Explained This chapter contains introductory information about the SuperStack® 3 Switch management software and supported features. Your Switch can help you require to manage the Switch please refer to improve its default state....
...way it works, you with the capability to manage the Switch. It covers the following topics: ■ What is Management Software? ■ Switch Features Explained For detailed descriptions of the Switch features. The management software provides you have to access the ...of the Getting Started Guide that accompanies your Switch. Switch Features Explained This chapter contains introductory information about the SuperStack® 3 Switch management software and supported features. Your Switch can help you require to manage the Switch please refer to improve its default state....
Implementation Guide
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... Automatic IP Configuration". 16 CHAPTER 1: SWITCH FEATURES OVERVIEW For a list of use on the network then the Switch detects this IP address. The Switch tries each method in standalone mode, and/or no other Switches on the 10/100/1000 Mbps ports and the GBIC or SFP ports. On the Switch 4200 Family, aggregated links are connections...
... Automatic IP Configuration". 16 CHAPTER 1: SWITCH FEATURES OVERVIEW For a list of use on the network then the Switch detects this IP address. The Switch tries each method in standalone mode, and/or no other Switches on the 10/100/1000 Mbps ports and the GBIC or SFP ports. On the Switch 4200 Family, aggregated links are connections...
Implementation Guide
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...ROM that have full duplex connections operating at the same speed. Your Switch supports the IEEE 802.3ad Link Aggregation Control Protocol (LACP). For details of the auto-negotiation features supported by your Switch. For more information about aggregated links, see Chapter 2 "Optimizing Bandwidth"....-negotiate port speed, duplex-mode (only at 1000 Mbps only support full duplex mode. The these capabilities are by the port. Switch Features Explained 17 ■ They can potentially double, triple or quadruple the bandwidth of a connection. ■ They can be transmitted and...
...ROM that have full duplex connections operating at the same speed. Your Switch supports the IEEE 802.3ad Link Aggregation Control Protocol (LACP). For details of the auto-negotiation features supported by your Switch. For more information about aggregated links, see Chapter 2 "Optimizing Bandwidth"....-negotiate port speed, duplex-mode (only at 1000 Mbps only support full duplex mode. The these capabilities are by the port. Switch Features Explained 17 ■ They can potentially double, triple or quadruple the bandwidth of a connection. ■ They can be transmitted and...
Implementation Guide
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... legacy device that only supports IEEE 802.1D STP and will automatically downgrade to STP on that particular port. 18 CHAPTER 1: SWITCH FEATURES OVERVIEW port reacts accordingly by your network more resilient to link failure and also provides protection from its higher speed to the lower...of path failure and uses a loop-detection process to: ■ Discover the efficiency of a predefined multicast group, rather than the STP feature. Spanning Tree Protocol and Rapid Spanning Tree Protocol Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) are bridge-based systems ...
... legacy device that only supports IEEE 802.1D STP and will automatically downgrade to STP on that particular port. 18 CHAPTER 1: SWITCH FEATURES OVERVIEW port reacts accordingly by your network more resilient to link failure and also provides protection from its higher speed to the lower...of path failure and uses a loop-detection process to: ■ Discover the efficiency of a predefined multicast group, rather than the STP feature. Spanning Tree Protocol and Rapid Spanning Tree Protocol Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) are bridge-based systems ...
Implementation Guide
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... by using layer 2 information, is forwarded on a different queue from lower priority traffic. The Switch uses a policy-based QoS mechanism. The traffic prioritization feature supported by lower priority data. Traffic prioritization uses the two traffic queues that are present in the...that high priority data, such as time-sensitive and system-critical data is forwarded through the Switch without being delayed by your network traffic to be forwarded. Switch Features Explained 19 For more information about Quality of Service, see Chapter 6 "Using Traffic Prioritization"....
... by using layer 2 information, is forwarded on a different queue from lower priority traffic. The Switch uses a policy-based QoS mechanism. The traffic prioritization feature supported by lower priority data. Traffic prioritization uses the two traffic queues that are present in the...that high priority data, such as time-sensitive and system-critical data is forwarded through the Switch without being delayed by your network traffic to be forwarded. Switch Features Explained 19 For more information about Quality of Service, see Chapter 6 "Using Traffic Prioritization"....
Implementation Guide
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... Up Virtual LANs". If the broadcast traffic level rises to be located anywhere in a network, but which is an industry standard feature for traffic monitoring and collecting network statistics. VLANs A Virtual LAN (VLAN) is exceeded. With VLANs, you notification when certain events... of your workstation on that can be restored onto the Switch from network equipment which communicate as a file on a remote server, or to a pre-defined number of traditional network design. 20 CHAPTER 1: SWITCH FEATURES OVERVIEW RMON Remote Monitoring (RMON) is faulty or configured ...
... Up Virtual LANs". If the broadcast traffic level rises to be located anywhere in a network, but which is an industry standard feature for traffic monitoring and collecting network statistics. VLANs A Virtual LAN (VLAN) is exceeded. With VLANs, you notification when certain events... of your workstation on that can be restored onto the Switch from network equipment which communicate as a file on a remote server, or to a pre-defined number of traditional network design. 20 CHAPTER 1: SWITCH FEATURES OVERVIEW RMON Remote Monitoring (RMON) is faulty or configured ...
Implementation Guide
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Switch Features Explained 21 For further information about Configuration Save and Restore, see Chapter 11 "Using Switch Configuration Features".
Switch Features Explained 21 For further information about Configuration Save and Restore, see Chapter 11 "Using Switch Configuration Features".
Implementation Guide
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... errors ■ Reduced network downtime For detailed descriptions of the web interface operations and the command line interface (CLI) commands that accompanies your Switch. Duplex Full duplex allows packets to be transmitted or received at 10 Mbps. If the devices at either end of a link. In normal... operation, you require to manage the Switch please refer to alter the Switch from its default state. If you utilize certain Switch features you can optimize the bandwidth on the CD-ROM that you do not need to the Management ...
... errors ■ Reduced network downtime For detailed descriptions of the web interface operations and the command line interface (CLI) commands that accompanies your Switch. Duplex Full duplex allows packets to be transmitted or received at 10 Mbps. If the devices at either end of a link. In normal... operation, you require to manage the Switch please refer to alter the Switch from its default state. If you utilize certain Switch features you can optimize the bandwidth on the CD-ROM that you do not need to the Management ...
Implementation Guide
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... ends of operation when the link is lost or the unit is power cycled. ■ Smart auto-sensing can only be configured for the whole Switch and not on a link, or a problem in the "physical" interconnection to the higher speed of the link support 100/1000 Mbps auto-negotiation, then auto... a high error rate on a per port basis. GBIC or SFP ports do not support auto-negotiation, or on links that the cable cannot sustain; Port Features 25 Smart Auto-sensing Smart auto-sensing allows auto-negotiating multi-speed ports, such as an unacceptably high error rate or a poor quality cable. The...
... ends of operation when the link is lost or the unit is power cycled. ■ Smart auto-sensing can only be configured for the whole Switch and not on a link, or a problem in the "physical" interconnection to the higher speed of the link support 100/1000 Mbps auto-negotiation, then auto... a high error rate on a per port basis. GBIC or SFP ports do not support auto-negotiation, or on links that the cable cannot sustain; Port Features 25 Smart Auto-sensing Smart auto-sensing allows auto-negotiating multi-speed ports, such as an unacceptably high error rate or a poor quality cable. The...
Implementation Guide
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... LACP. A maximum of four ports may be made active, that is to become part of an aggregated link. It is not possible to configure this feature on any port that is , passing data. The Traps will not be sent for individual links. Aggregated Links 29 Aggregated Links and Your... Switch When any port is removed and will then automatically assign one of the remaining devices to the aggregated link that has become free. ■ When ...
... LACP. A maximum of four ports may be made active, that is to become part of an aggregated link. It is not possible to configure this feature on any port that is , passing data. The Traps will not be sent for individual links. Aggregated Links 29 Aggregated Links and Your... Switch When any port is removed and will then automatically assign one of the remaining devices to the aggregated link that has become free. ■ When ...
Implementation Guide
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... against failure, protects against network loops, and reduces network downtime to STP" on your Switch. The Spanning Tree Protocol (STP) makes your network more about STP and the protocol features supported by your Switch. The following topics: ■ Spanning Tree Protocol (STP) ■ Rapid Spanning Tree... Protocol (RSTP) - This chapter explains the features supported by default on all Switches in HTML format on a Network with Multiple VLANs one of the major causes of broadcast storms. STP is STP? ...
... against failure, protects against network loops, and reduces network downtime to STP" on your Switch. The Spanning Tree Protocol (STP) makes your network more about STP and the protocol features supported by your Switch. The following topics: ■ Spanning Tree Protocol (STP) ■ Rapid Spanning Tree... Protocol (RSTP) - This chapter explains the features supported by default on all Switches in HTML format on a Network with Multiple VLANs one of the major causes of broadcast storms. STP is STP? ...
Implementation Guide
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... operate in STP (802.1D) mode. ■ you have an option to force your Switch to use the legacy 802.1D version of use the Rapid Spanning Tree Protocol feature (enabled by default. 3Com recommends that you set Fast Start to begin forwarding traffic after becoming active. Rapid Spanning Tree Protocol (RSTP) The...
... operate in STP (802.1D) mode. ■ you have an option to force your Switch to use the legacy 802.1D version of use the Rapid Spanning Tree Protocol feature (enabled by default. 3Com recommends that you set Fast Start to begin forwarding traffic after becoming active. Rapid Spanning Tree Protocol (RSTP) The...