Implementation Guide
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Aggregated Links and Your Switch 21 Aggregated Link - Manual Configuration Example 24 3 USING MULTICAST FILTERING What is an IP Multicast? 27 Benefits of Multicast 28 Multicast Filtering 28 Multicast Filtering and Your Switch 29 IGMP Multicast Filtering 30 4 USING RESILIENCE FEATURES Resilience Feature Overview 34 ...39 STP Configurations 41 Using STP on a Network with Multiple VLANs 43 5 USING THE SWITCH DATABASE What is the Switch Database? 45 How Switch Database Entries Get Added 45 Switch Database Entry States 46 6 USING TRAFFIC PRIORITIZATION What is Traffic Prioritization? 48 How Traffic ...
Aggregated Links and Your Switch 21 Aggregated Link - Manual Configuration Example 24 3 USING MULTICAST FILTERING What is an IP Multicast? 27 Benefits of Multicast 28 Multicast Filtering 28 Multicast Filtering and Your Switch 29 IGMP Multicast Filtering 30 4 USING RESILIENCE FEATURES Resilience Feature Overview 34 ...39 STP Configurations 41 Using STP on a Network with Multiple VLANs 43 5 USING THE SWITCH DATABASE What is the Switch Database? 45 How Switch Database Entries Get Added 45 Switch Database Entry States 46 6 USING TRAFFIC PRIORITIZATION What is Traffic Prioritization? 48 How Traffic ...
Implementation Guide
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...traffic is 1000. For more information about aggregated links, see Chapter 9 "Using Automatic IP Configuration". 12 CHAPTER 1: SWITCH FEATURES OVERVIEW Automatic IP Your Switch can have its maximum capabilities - if one link is enabled (default), a port "advertises" its IP information ... Mbps and 100 Mbps) and flow control. SFP ports do not support auto-negotiation of a connection. ■ They can manually configure the IP information. For more information about how the automatic IP configuration feature works, see Chapter 2 "Optimizing Bandwidth". Aggregated...
...traffic is 1000. For more information about aggregated links, see Chapter 9 "Using Automatic IP Configuration". 12 CHAPTER 1: SWITCH FEATURES OVERVIEW Automatic IP Your Switch can have its maximum capabilities - if one link is enabled (default), a port "advertises" its IP information ... Mbps and 100 Mbps) and flow control. SFP ports do not support auto-negotiation of a connection. ■ They can manually configure the IP information. For more information about how the automatic IP configuration feature works, see Chapter 2 "Optimizing Bandwidth". Aggregated...
Implementation Guide
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... Bandwidth". ■ When restoring a configuration onto a unit over the aggregated links is different. ■ The configuration of the Switch must only be enabled and Spanning Tree Protocol enabled. or ■ LACP automatic aggregations - Other combinations of port settings, however,... a single user at a time. ■ When using the Configuration Save and Restore feature, 3Com recommends that aggregated links are restored as either: ■ Manual aggregations with the aggregated link disabled. For detailed descriptions of the configuration. The restore operation will ...
... Bandwidth". ■ When restoring a configuration onto a unit over the aggregated links is different. ■ The configuration of the Switch must only be enabled and Spanning Tree Protocol enabled. or ■ LACP automatic aggregations - Other combinations of port settings, however,... a single user at a time. ■ When using the Configuration Save and Restore feature, 3Com recommends that aggregated links are restored as either: ■ Manual aggregations with the aggregated link disabled. For detailed descriptions of the configuration. The restore operation will ...
Implementation Guide
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...duplex mode only. these capabilities are by the port. SFP ports do not support auto-negotiation, both ends of the link should be manually set to auto-negotiate. Ports operating at 10 Mbps and 100 Mbps) and flow control. For more devices sending traffic to an ...loss by one or more information, see the Getting Started Guide that provide the highest performance supported by default the parameters that accompanies your Switch. When auto-negotiation is implemented using the IEEE Std 802.3-2002 (incorporating 802.3x) for ports operating in full duplex mode, and...
...duplex mode only. these capabilities are by the port. SFP ports do not support auto-negotiation, both ends of the link should be manually set to auto-negotiate. Ports operating at 10 Mbps and 100 Mbps) and flow control. For more devices sending traffic to an ...loss by one or more information, see the Getting Started Guide that provide the highest performance supported by default the parameters that accompanies your Switch. When auto-negotiation is implemented using the IEEE Std 802.3-2002 (incorporating 802.3x) for ports operating in full duplex mode, and...
Implementation Guide
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... you will need to be enabled or disabled on Switch C to automatically detect and form an aggregation with 802.3ad enabled devices. network management does not need to manually configure the aggregated links as LACP will override the manual configuration. almost instantaneously. Figure 2 Dynamic Reassignment of Traffic Flows The key benefits of 802...
... you will need to be enabled or disabled on Switch C to automatically detect and form an aggregation with 802.3ad enabled devices. network management does not need to manually configure the aggregated links as LACP will override the manual configuration. almost instantaneously. Figure 2 Dynamic Reassignment of Traffic Flows The key benefits of 802...
Implementation Guide
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.... Figure 3 Aggregated Link - As required by simply adding an extra physical link between two devices, this and place the port in the aggregated link for Switch B, thus overriding the manual configuration. Example ■ LACP Automatic Aggregations - If you have an existing single port connection between the units. Aggregated Links and Your...
.... Figure 3 Aggregated Link - As required by simply adding an extra physical link between two devices, this and place the port in the aggregated link for Switch B, thus overriding the manual configuration. Example ■ LACP Automatic Aggregations - If you have an existing single port connection between the units. Aggregated Links and Your...
Implementation Guide
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Figure 4 How LACP works on a Switch with multiple aggregated links Switch H X Switch A AL 1 AL 2 AL 3 AL 4 AL 5 AL 6 Switch B Switch C Switch D Switch E Switch F Switch G ■ When multiple links of different speed connect two devices only the highest speed links will be aggregated. ■ A LinkUp / ... both ends of a member link must be sent for an aggregation. All other devices as members of an aggregated link, if you are manually configuring aggregated links. ■ A member link port can only belong to one aggregated link. LACP detects if one of the existing six ...
Figure 4 How LACP works on a Switch with multiple aggregated links Switch H X Switch A AL 1 AL 2 AL 3 AL 4 AL 5 AL 6 Switch B Switch C Switch D Switch E Switch F Switch G ■ When multiple links of different speed connect two devices only the highest speed links will be aggregated. ■ A LinkUp / ... both ends of a member link must be sent for an aggregation. All other devices as members of an aggregated link, if you are manually configuring aggregated links. ■ A member link port can only belong to one aggregated link. LACP detects if one of the existing six ...
Implementation Guide
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...of out-of-sequence packets (or "packet re-ordering"), the Switch ensures that all the conversations between a given pair of endstations will automatically redirect the aggregated link traffic to the remaining ports. Manual Configuration Example The example shown in Figure 6 illustrates an 8... Distribution and Link Failure on the other hand, may be created. ■ When manually creating an aggregated link between two Switch units, (that make up an aggregated link. The Switch also has a mechanism to -multiple endstation conversations, on Aggregated Links To maximize throughput,...
...of out-of-sequence packets (or "packet re-ordering"), the Switch ensures that all the conversations between a given pair of endstations will automatically redirect the aggregated link traffic to the remaining ports. Manual Configuration Example The example shown in Figure 6 illustrates an 8... Distribution and Link Failure on the other hand, may be created. ■ When manually creating an aggregated link between two Switch units, (that make up an aggregated link. The Switch also has a mechanism to -multiple endstation conversations, on Aggregated Links To maximize throughput,...
Implementation Guide
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... Switch. 4 Connect port 4 on the upper Switch to port 4 on the lower Switch. 5 Connect port 6 on the upper Switch to port 6 on the lower Switch. 6 Connect port 8 on the upper Switch to the aggregated link. 2 Prepare ports 2, 4, 6 and 8 on the lower Switch. Aggregated Links 25 Figure 6 An 8 Gbps aggregated link between two Switch units Switch 8 Gbps Aggregated Link Switch To manually...
... Switch. 4 Connect port 4 on the upper Switch to port 4 on the lower Switch. 5 Connect port 6 on the upper Switch to port 6 on the lower Switch. 6 Connect port 8 on the upper Switch to the aggregated link. 2 Prepare ports 2, 4, 6 and 8 on the lower Switch. Aggregated Links 25 Figure 6 An 8 Gbps aggregated link between two Switch units Switch 8 Gbps Aggregated Link Switch To manually...
Implementation Guide
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... users move to specify that is in VLAN Marketing. 64 CHAPTER 8: SETTING UP VIRTUAL LANS Figure 16 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... 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.
... users move to specify that is in VLAN Marketing. 64 CHAPTER 8: SETTING UP VIRTUAL LANS Figure 16 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... 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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...to contact a DHCP server on the DHCP server settings. How Automatic IP Configuration Works When your Switch has been powered up before, whichever of the three options for IP configuration (manual, auto, none) was last configured is set up again. For more information see the Getting ...To detect its IP address information: ■ Automatic IP Configuration (default) - You can manually input the IP information (IP address, subnet mask, and default gateway). If you can switch to manual IP configuration at any other options configured in the DHCP server. this is dependant on the...
...to contact a DHCP server on the DHCP server settings. How Automatic IP Configuration Works When your Switch has been powered up before, whichever of the three options for IP configuration (manual, auto, none) was last configured is set up again. For more information see the Getting ...To detect its IP address information: ■ Automatic IP Configuration (default) - You can manually input the IP information (IP address, subnet mask, and default gateway). If you can switch to manual IP configuration at any other options configured in the DHCP server. this is dependant on the...
Implementation Guide
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... been tested to be sent if the IP and Traps address configuration is changed manually. Important Considerations 73 The dynamic nature of automatically configured IP information means that a Switch may change its IP address whilst in use the following operating systems: ■ Microsoft Windows 2000 Server ■ Microsoft Windows NT4 Server ■...
... been tested to be sent if the IP and Traps address configuration is changed manually. Important Considerations 73 The dynamic nature of automatically configured IP information means that a Switch may change its IP address whilst in use the following operating systems: ■ Microsoft Windows 2000 Server ■ Microsoft Windows NT4 Server ■...
Implementation Guide
Page 88
... the remote destination, and sends the packets to multiple segments. "Remote" refers to a destination device that hop. An alternative name for the Switch, enter the IP address of the default gateway on your network, enter the IP address 0.0.0.0 or leave the field blank. This hop-by... IP packets reach the remote destination. The source device cannot send IP packets directly to the destination device because it is located. If manually configuring IP information for a gateway is not directly attached to the same network segment as the default broadcast address. 88 APPENDIX C: IP...
... the remote destination, and sends the packets to multiple segments. "Remote" refers to a destination device that hop. An alternative name for the Switch, enter the IP address of the default gateway on your network, enter the IP address 0.0.0.0 or leave the field blank. This hop-by... IP packets reach the remote destination. The source device cannot send IP packets directly to the destination device because it is located. If manually configuring IP information for a gateway is not directly attached to the same network segment as the default broadcast address. 88 APPENDIX C: IP...
Implementation Guide
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...Restore 15 RMON 14 alarm events 62 benefits 61 groups 59 Root Bridge 37 Root Path Cost 38 Root Port 38 S Save 15 SDB. See Switch Database segment, maximum length 76 Spanning Tree Protocol (STP) 13 Spanning Tree Protocol, see Quality of Service) 14, 47 Quality of VLANs 43 Bridge...86 example 86 numbering 87 subnets 86 subnetworking defined 86 subnet mask 86 sub-networks. See subnets Switch Database 45 100 INDEX L learned SDB entries 46 M MAC (Media Access Control) addresses IP address 84 manual configuration 72 masks subnet 86 Matrix (RMON group) 61 Max Age 39 multicast filtering 27 IGMP...
...Restore 15 RMON 14 alarm events 62 benefits 61 groups 59 Root Bridge 37 Root Path Cost 38 Root Port 38 S Save 15 SDB. See Switch Database segment, maximum length 76 Spanning Tree Protocol (STP) 13 Spanning Tree Protocol, see Quality of Service) 14, 47 Quality of VLANs 43 Bridge...86 example 86 numbering 87 subnets 86 subnetworking defined 86 subnet mask 86 sub-networks. See subnets Switch Database 45 100 INDEX L learned SDB entries 46 M MAC (Media Access Control) addresses IP address 84 manual configuration 72 masks subnet 86 Matrix (RMON group) 61 Max Age 39 multicast filtering 27 IGMP...