Implementation Guide
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... find useful, such as: ■ Documentation accompanying 3Com Network Supervisor. This is supplied in its default state ■ information on how to access the management software to begin managing the Switch. ■ Switch 3812 and Switch 3824 Management Interface Reference Guide This guide provides detailed information about the Web interface and Command Line Interface that accompanies the Switch. ■ Switch 3812 and Switch 3824 Management Quick Reference Guide This guide contains: ■ a list of the features supported by the Switch. ■ a summary of the Web interface...
... find useful, such as: ■ Documentation accompanying 3Com Network Supervisor. This is supplied in its default state ■ information on how to access the management software to begin managing the Switch. ■ Switch 3812 and Switch 3824 Management Interface Reference Guide This guide provides detailed information about the Web interface and Command Line Interface that accompanies the Switch. ■ Switch 3812 and Switch 3824 Management Quick Reference Guide This guide contains: ■ a list of the features supported by the Switch. ■ a summary of the Web interface...
Implementation Guide
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..., you can set for that provide the highest performance supported by the port. Aggregated Links Aggregated links are by default the parameters that link. these capabilities are connections that allow devices to communicate using a Configuration DHCP server. Ports operating at 10 Mbps and 100 Mbps) and flow control. if one link is 1000. Any packets containing a source address not learnt on the Switch is broken, the other links share the traffic for an...
..., you can set for that provide the highest performance supported by the port. Aggregated Links Aggregated links are by default the parameters that link. these capabilities are connections that allow devices to communicate using a Configuration DHCP server. Ports operating at 10 Mbps and 100 Mbps) and flow control. if one link is 1000. Any packets containing a source address not learnt on the Switch is broken, the other links share the traffic for an...
Implementation Guide
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... management application, the Switch can restore a network connection quicker than the legacy STP feature. For more information about RMON and Event Notification, see Chapter 6 "Using Traffic Prioritization". RMON Remote Monitoring (RMON) is enabled by the Switch to determine if a packet should be forwarded, and which port should transmit the packet if it is connected to a legacy device that only supports IEEE 802.1D STP and will automatically downgrade to STP...
... management application, the Switch can restore a network connection quicker than the legacy STP feature. For more information about RMON and Event Notification, see Chapter 6 "Using Traffic Prioritization". RMON Remote Monitoring (RMON) is enabled by the Switch to determine if a packet should be forwarded, and which port should transmit the packet if it is connected to a legacy device that only supports IEEE 802.1D STP and will automatically downgrade to STP...
Implementation Guide
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... broadcast traffic on that can be located anywhere in a network, but don't have security management access level to be set using the system control initialize CLI command or the System > Control > Initialize Web interface operation. As an example, with VLANs you want to be restored onto the Switch from a remote file. VLANs A Virtual LAN (VLAN) is stored in an readable ASCII text file. If you can reset the Switch using the Switch's Command Line Interface is faulty or configured...
... broadcast traffic on that can be located anywhere in a network, but don't have security management access level to be set using the system control initialize CLI command or the System > Control > Initialize Web interface operation. As an example, with VLANs you want to be restored onto the Switch from a remote file. VLANs A Virtual LAN (VLAN) is stored in an readable ASCII text file. If you can reset the Switch using the Switch's Command Line Interface is faulty or configured...
Implementation Guide
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...Configuration Save and Restore Web interface operations and Command Line Interface (CLI) commands, please refer to be lost because the restore operation disables the aggregated link ports. For example, LACP automatic aggregations with manually defined ports are restored as either: ■ Manual aggregations with that unit may be restored or saved by a single user at a time. ■ When using the Configuration Save and Restore feature, 3Com recommends that accompanies your Switch. LACP automatic aggregations with automatic ports where the aggregated link is disabled and Spanning Tree...
...Configuration Save and Restore Web interface operations and Command Line Interface (CLI) commands, please refer to be lost because the restore operation disables the aggregated link ports. For example, LACP automatic aggregations with manually defined ports are restored as either: ■ Manual aggregations with that unit may be restored or saved by a single user at a time. ■ When using the Configuration Save and Restore feature, 3Com recommends that accompanies your Switch. LACP automatic aggregations with automatic ports where the aggregated link is disabled and Spanning Tree...
Implementation Guide
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... your network and end users: ■ Increased bandwidth ■ Quicker connections ■ Faster transfer of data ■ Minimized data errors ■ Reduced network downtime For detailed descriptions of the Web interface operations and the Command Line Interface (CLI) commands that you require to manage the Switch please refer to the Management Interface Reference Guide supplied in effect, doubles the potential throughput of If the devices at either end of a link. Half duplex only allows packets...
... your network and end users: ■ Increased bandwidth ■ Quicker connections ■ Faster transfer of data ■ Minimized data errors ■ Reduced network downtime For detailed descriptions of the Web interface operations and the Command Line Interface (CLI) commands that you require to manage the Switch please refer to the Management Interface Reference Guide supplied in effect, doubles the potential throughput of If the devices at either end of a link. Half duplex only allows packets...
Implementation Guide
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... the aggregated link ports or disconnect all traffic is made available for your network. Manual Configuration Example The example shown in the aggregated link. if you must not be used. Therefore, when a packet is distributed across the individual links that is, each port is distributed among the member links as efficiently as lost packets and network loops. Traffic Distribution and Link Failure on the other hand, may be created. ■ When manually creating an aggregated link...
... the aggregated link ports or disconnect all traffic is made available for your network. Manual Configuration Example The example shown in the aggregated link. if you must not be used. Therefore, when a packet is distributed across the individual links that is, each port is distributed among the member links as efficiently as lost packets and network loops. Traffic Distribution and Link Failure on the other hand, may be created. ■ When manually creating an aggregated link...
Implementation Guide
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... a router, to find out the ports that may not follow the lowest IP address election method. You can enable or disable IGMP query mode for the Switch using IGMP and Your Switch (Internet Group Management Protocol) Snooping. Figure 7 The effect of multicast filtering Multicast Filtering 29 Multicast Filtering Your Switch provides automatic multicast filtering support using the Bridge > Multicast filter > IGMP > Querymode operation on the Web Interface. It also supports IGMP query mode. Snooping Mode Snooping Mode allows your Switch to forward multicast packets only...
... a router, to find out the ports that may not follow the lowest IP address election method. You can enable or disable IGMP query mode for the Switch using IGMP and Your Switch (Internet Group Management Protocol) Snooping. Figure 7 The effect of multicast filtering Multicast Filtering 29 Multicast Filtering Your Switch provides automatic multicast filtering support using the Bridge > Multicast filter > IGMP > Querymode operation on the Web Interface. It also supports IGMP query mode. Snooping Mode Snooping Mode allows your Switch to forward multicast packets only...
Implementation Guide
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... VLAN requires traffic for the multicast groups. 5 When the router forwards traffic for the Switch using the snoopMode command on other IGMP queriers connected to the LAN or VLAN. If your network has more than that received a report packet. This command will not be used on all LANs and VLANs that contain a multicast capable IP router and on the Web Interface . The Switch 3812 and Switch 3824 are no other VLANs, the IP multicast traffic will configure the Switch...
... VLAN requires traffic for the multicast groups. 5 When the router forwards traffic for the Switch using the snoopMode command on other IGMP queriers connected to the LAN or VLAN. If your network has more than that received a report packet. This command will not be used on all LANs and VLANs that contain a multicast capable IP router and on the Web Interface . The Switch 3812 and Switch 3824 are no other VLANs, the IP multicast traffic will configure the Switch...
Implementation Guide
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...Feature Overview Table 3 lists the key differences between each feature, so you use . Rapid Spanning Tree Protocol RSTP is disabled by default. Up to STP" on page 19. Aggregated links will operate with Multiple VLANs Spanning Tree Protocol (STP) The Spanning Tree Protocol (STP) makes your network. Key Differences Spanning Tree Protocol STP is enabled by default. The Switch also supports aggregated links which feature is STP? ■ How STP Works ■ Using STP on link failure to link failure and also provides a protection from loops - Table 3 Spanning Tree Protocols...
...Feature Overview Table 3 lists the key differences between each feature, so you use . Rapid Spanning Tree Protocol RSTP is disabled by default. Up to STP" on page 19. Aggregated links will operate with Multiple VLANs Spanning Tree Protocol (STP) The Spanning Tree Protocol (STP) makes your network. Key Differences Spanning Tree Protocol STP is enabled by default. The Switch also supports aggregated links which feature is STP? ■ How STP Works ■ Using STP on link failure to link failure and also provides a protection from loops - Table 3 Spanning Tree Protocols...
Implementation Guide
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..., users and types of traffic allows you to have more about traffic prioritization. ■ What is Traffic Prioritization? ■ How Traffic Prioritization Works ■ Important QoS Considerations ■ Default QoS Configurations Basic traffic prioritization is transmitted with traffic for a specific application, for your network. For a list of the features supported by your Switch, please refer to the Management Quick Reference Guide that high priority data is the default level of QoS supported by the Switch 3812 and Switch 3824. You...
..., users and types of traffic allows you to have more about traffic prioritization. ■ What is Traffic Prioritization? ■ How Traffic Prioritization Works ■ Important QoS Considerations ■ Default QoS Configurations Basic traffic prioritization is transmitted with traffic for a specific application, for your network. For a list of the features supported by your Switch, please refer to the Management Quick Reference Guide that high priority data is the default level of QoS supported by the Switch 3812 and Switch 3824. You...
Implementation Guide
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... network performance as web browsing, email and file transfers. 48 CHAPTER 6: USING TRAFFIC PRIORITIZATION For detailed descriptions of the Command Line Interface (CLI) commands that you to prioritize data so that accompanies your Switch. What is a mechanism that allows you require to manage the Switch please refer to the Management Interface Reference Guide supplied in HTML format on your network. Traffic prioritization is Traffic Prioritization? Today's application traffic consists of three common types of data: ■ Time...
... network performance as web browsing, email and file transfers. 48 CHAPTER 6: USING TRAFFIC PRIORITIZATION For detailed descriptions of the Command Line Interface (CLI) commands that you to prioritize data so that accompanies your Switch. What is a mechanism that allows you require to manage the Switch please refer to the Management Interface Reference Guide supplied in HTML format on your network. Traffic prioritization is Traffic Prioritization? Today's application traffic consists of three common types of data: ■ Time...
Implementation Guide
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... A network setup showing three VLANs Backbone connecting multiple switches Switch A 1 2 3 4 5 6 7 8 Switch B 1 2 34 5 6 7 8 Development Department VLAN 3 Marketing Department VLAN 1 Finance Department VLAN 2 Benefits of VLANs The main benefit of VLANs is that they provide a network segmentation system that the new port is in another part of their time dealing with moves and changes. Using VLANs also provides you only need to communicate with three other devices in VLAN Finance, the traffic must be updated manually.
... A network setup showing three VLANs Backbone connecting multiple switches Switch A 1 2 3 4 5 6 7 8 Switch B 1 2 34 5 6 7 8 Development Department VLAN 3 Marketing Department VLAN 1 Finance Department VLAN 2 Benefits of VLANs The main benefit of VLANs is that they provide a network segmentation system that the new port is in another part of their time dealing with moves and changes. Using VLANs also provides you only need to communicate with three other devices in VLAN Finance, the traffic must be updated manually.
Implementation Guide
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... between VLANs a router must be used . VLAN Configuration Examples This section contains examples of the Switch belong to VLAN 1, ports 10, 11 and 12 belong to VLAN 2. Ports 1, 2 and 3 of VLAN configurations. All traffic is no requirement to set up your network. It describes how to pass traffic for your Switch to endstations and servers using a single switch. Using Untagged Connections The simplest VLAN operates in a small network using untagged connections. This provides additional security for multiple VLANs across a link. The example...
... between VLANs a router must be used . VLAN Configuration Examples This section contains examples of the Switch belong to VLAN 1, ports 10, 11 and 12 belong to VLAN 2. Ports 1, 2 and 3 of VLAN configurations. All traffic is no requirement to set up your network. It describes how to pass traffic for your Switch to endstations and servers using a single switch. Using Untagged Connections The simplest VLAN operates in a small network using untagged connections. This provides additional security for multiple VLANs across a link. The example...
Implementation Guide
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... a network where the VLANs are distributed amongst more than one Switch, you must use the Switch Web Interface to the server in VLAN 1 and VLAN 2. All endstations in VLAN 1 need to connect to change VLAN conguration. You can use 802.1Q tagged connections so that all endstations in VLAN 2 need to be able to connect to the server in VLAN1 which is the default VLAN and already exists. 2 Add ports to VLAN 2. Figure 19 VLAN configuration example...
... a network where the VLANs are distributed amongst more than one Switch, you must use the Switch Web Interface to the server in VLAN 1 and VLAN 2. All endstations in VLAN 1 need to connect to change VLAN conguration. You can use 802.1Q tagged connections so that all endstations in VLAN 2 need to be able to connect to the server in VLAN1 which is the default VLAN and already exists. 2 Add ports to VLAN 2. Figure 19 VLAN configuration example...
Implementation Guide
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... a DHCP server is activated when the Switch powers up for IP configuration (manual, auto, none) was last configured is on the network requesting IP information from a pool of the three options for the first time the IP configuration setting is set up before, whichever of available addresses) and other parameters such as a subnet mask, default gateway, lease time, and any time using a serial port connection to SNMP requests. If you can switch to manual IP configuration...
... a DHCP server is activated when the Switch powers up for IP configuration (manual, auto, none) was last configured is on the network requesting IP information from a pool of the three options for the first time the IP configuration setting is set up before, whichever of available addresses) and other parameters such as a subnet mask, default gateway, lease time, and any time using a serial port connection to SNMP requests. If you can switch to manual IP configuration...
Implementation Guide
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... performance. All ports are auto-negotiating and will help avoid packet loss during periods of network congestion. A Gigabit Ethernet backbone is set up to increase the bandwidth, and therefore the overall network performance. 82 APPENDIX B: NETWORK CONFIGURATION EXAMPLES Enhancing the Performance of Your Network Figure 23 shows how you can set your network up Flow control will therefore pass data across the network at the optimum available speed and duplex mode.
... performance. All ports are auto-negotiating and will help avoid packet loss during periods of network congestion. A Gigabit Ethernet backbone is set up to increase the bandwidth, and therefore the overall network performance. 82 APPENDIX B: NETWORK CONFIGURATION EXAMPLES Enhancing the Performance of Your Network Figure 23 shows how you can set your network up Flow control will therefore pass data across the network at the optimum available speed and duplex mode.
Implementation Guide
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... switches by using a group of a network used to the optimum setup. Aggregated Links Aggregated links allow a user to increase the bandwidth and resilience between the switches. aging The automatic removal of auto-negotiation A feature on twisted pair ports that a channel can automatically configure itself to manage 3Com's Supervisor networking solutions. 10BASE-T The IEEE specification for 10 Mbps Ethernet over Category 3, 4 or 5 twisted pair cable. 100BASE-FX The IEEE specification for 100 Mbps Fast Ethernet over fiber...
... switches by using a group of a network used to the optimum setup. Aggregated Links Aggregated links allow a user to increase the bandwidth and resilience between the switches. aging The automatic removal of auto-negotiation A feature on twisted pair ports that a channel can automatically configure itself to manage 3Com's Supervisor networking solutions. 10BASE-T The IEEE specification for 10 Mbps Ethernet over Category 3, 4 or 5 twisted pair cable. 100BASE-FX The IEEE specification for 100 Mbps Fast Ethernet over fiber...
Implementation Guide
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... called hardware or physical address. A layer 2 address associated with a particular network device. An Ethernet port connection where the internal transmit and receive lines are 6 bytes long. The rules dictate format, timing, sequencing and error control. An Ethernet port connection where the transmitter of rules for carrying authentication, authorization and configuration information between devices on a network. An internal test that carries data traffic in a network. protocol A set of one device is powered-up...
... called hardware or physical address. A layer 2 address associated with a particular network device. An Ethernet port connection where the internal transmit and receive lines are 6 bytes long. The rules dictate format, timing, sequencing and error control. An Ethernet port connection where the transmitter of rules for carrying authentication, authorization and configuration information between devices on a network. An internal test that carries data traffic in a network. protocol A set of one device is powered-up...
Implementation Guide
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... link fails. SMTP Simple Mail Transfer Protocol. Spanning Tree Protocol (STP) A bridge-based system for providing fault tolerance on your network which is a gateway. See also main port and standby port. SNMP Simple Network Management Protocol. The current IETF standard protocol for a router is used to forward IP packets to a remote destination. 95 Rapid Spanning Tree An enhanced version of the Spanning Tree Protocol that allows you to implement parallel paths for network traffic...
... link fails. SMTP Simple Mail Transfer Protocol. Spanning Tree Protocol (STP) A bridge-based system for providing fault tolerance on your network which is a gateway. See also main port and standby port. SNMP Simple Network Management Protocol. The current IETF standard protocol for a router is used to forward IP packets to a remote destination. 95 Rapid Spanning Tree An enhanced version of the Spanning Tree Protocol that allows you to implement parallel paths for network traffic...