Implementation Guide
Page 24
... can disable auto-negotiation on all fixed ports on the Switch, or on a per port basis, dependent on the network. GBIC or SFP ports do not support auto-negotiation, both ends of the link must be manually set to auto-negotiate. When auto-negotiation is disabled, the ports will no ...port. 24 CHAPTER 2: OPTIMIZING BANDWIDTH If the devices at both ends of a link do not support auto-negotiation of port speed. Flow Control All Switch ports support flow control, which is cross-over or straight-through, for the type of device you have the correct type of cable, that is...
... can disable auto-negotiation on all fixed ports on the Switch, or on a per port basis, dependent on the network. GBIC or SFP ports do not support auto-negotiation, both ends of the link must be manually set to auto-negotiate. When auto-negotiation is disabled, the ports will no ...port. 24 CHAPTER 2: OPTIMIZING BANDWIDTH If the devices at both ends of a link do not support auto-negotiation of port speed. Flow Control All Switch ports support flow control, which is cross-over or straight-through, for the type of device you have the correct type of cable, that is...
Implementation Guide
Page 27
...As a result, aggregated link configurations are : ■ Automatic configuration - For example, in Figure 3, if a port on Switch C to be a member of an aggregated link for Switch B, thus overriding the manual configuration. Aggregated Links 27 re-mapping occurs as soon as LACP will not be able to automatically detect and form an aggregation.... ■ The operation of 802.3ad can be configured and managed via Web or CLI commands. However, you manually configure the port on Switch C is enabled) will detect this and place the port in three ways: ■...
...As a result, aggregated link configurations are : ■ Automatic configuration - For example, in Figure 3, if a port on Switch C to be a member of an aggregated link for Switch B, thus overriding the manual configuration. Aggregated Links 27 re-mapping occurs as soon as LACP will not be able to automatically detect and form an aggregation.... ■ The operation of 802.3ad can be configured and managed via Web or CLI commands. However, you manually configure the port on Switch C is enabled) will detect this and place the port in three ways: ■...
Implementation Guide
Page 28
...no changes in cost are made according to know which aggregated link is associated with appropriate configuration settings, such as VLAN membership, to manually configure the MAC address of a particular partner device (called the partner ID) against the partner device. If you need to the ...determine the port membership for an aggregated link running LACP is disabled on all 10/100/1000BASE-T and GBIC or SFP Switch ports. The aggregated link may be manually configured with which device in the aggregated link. If you to match the partner device. ■ LACP Automatic Aggregations ...
...no changes in cost are made according to know which aggregated link is associated with appropriate configuration settings, such as VLAN membership, to manually configure the MAC address of a particular partner device (called the partner ID) against the partner device. If you need to the ...determine the port membership for an aggregated link running LACP is disabled on all 10/100/1000BASE-T and GBIC or SFP Switch ports. The aggregated link may be manually configured with which device in the aggregated link. If you to match the partner device. ■ LACP Automatic Aggregations ...
Implementation Guide
Page 29
... are connected between two systems, the ports in a number of serious network issues such as members of an aggregated link, if you are manually configuring aggregated links. ■ A member link port can only belong to one aggregated link. A maximum of four ports may join automatically via...will then automatically assign one link made inactive to prevent loops occurring. Aggregated Links 29 Aggregated Links and Your Switch When any port is assigned to an aggregated link (either manually or via LACP) it will then become active. ■ Note that the port security must be disabled ...
... are connected between two systems, the ports in a number of serious network issues such as members of an aggregated link, if you are manually configuring aggregated links. ■ A member link port can only belong to one aggregated link. A maximum of four ports may join automatically via...will then automatically assign one link made inactive to prevent loops occurring. Aggregated Links 29 Aggregated Links and Your Switch When any port is assigned to an aggregated link (either manually or via LACP) it will then become active. ■ Note that the port security must be disabled ...
Implementation Guide
Page 44
... the direction of the Root Bridge flows through the Designated Bridge. The Root Bridge is the central reference point from which means that they are manually configured incorrectly, that is configured. ■ The Root Path Costs for the respective network segments. 44 CHAPTER 4: USING RESILIENCE FEATURES ■ The identity of the...
... the direction of the Root Bridge flows through the Designated Bridge. The Root Bridge is the central reference point from which means that they are manually configured incorrectly, that is configured. ■ The Root Path Costs for the respective network segments. 44 CHAPTER 4: USING RESILIENCE FEATURES ■ The identity of the...
Implementation Guide
Page 66
... port is far more flexible than any re-cabling. ■ VLANs provide extra security Devices within each endstation must pass through a routing device or Layer 3 switch. With a VLAN setup, if an endstation in VLAN Marketing for example is moved to a port in another part of the network, and retains its original... dealing with devices in VLAN Marketing. Using VLANs also provides you only need to specify that is in VLAN Finance, the traffic must be updated manually. If users move to communicate with moves and changes.
... port is far more flexible than any re-cabling. ■ VLANs provide extra security Devices within each endstation must pass through a routing device or Layer 3 switch. With a VLAN setup, if an endstation in VLAN Marketing for example is moved to a port in another part of the network, and retains its original... dealing with devices in VLAN Marketing. Using VLANs also provides you only need to specify that is in VLAN Finance, the traffic must be updated manually. If users move to communicate with moves and changes.
Implementation Guide
Page 74
... industry standard methods to automatic - this IP address. You can manually input the IP information (IP address, subnet mask, and default gateway). For more information see the Getting Started Guide that accompanies your Switch has been powered up again. you wish to SNMP requests. If... this default IP address is set up for IP configuration (manual, automatic, none) was last configured is the default setting. How Automatic...
... industry standard methods to automatic - this IP address. You can manually input the IP information (IP address, subnet mask, and default gateway). For more information see the Getting Started Guide that accompanies your Switch has been powered up again. you wish to SNMP requests. If... this default IP address is set up for IP configuration (manual, automatic, none) was last configured is the default setting. How Automatic...
Implementation Guide
Page 76
...Entries and Traps An event log will be generated and an SNMP trap will be sent if any of automatically configured IP information means that a Switch may change in the IP configuration 76 CHAPTER 9: USING AUTOMATIC IP CONFIGURATION Important Considerations This section contains some important points to DHCP IP configuration ... its IP address whilst in use. The dynamic nature of the following changes occur in the IP configuration: ■ IP address configuration is changed manually ■ IP address changes from Auto-IP to note when using the automatic IP configuration feature.
...Entries and Traps An event log will be generated and an SNMP trap will be sent if any of automatically configured IP information means that a Switch may change in the IP configuration 76 CHAPTER 9: USING AUTOMATIC IP CONFIGURATION Important Considerations This section contains some important points to DHCP IP configuration ... its IP address whilst in use. The dynamic nature of the following changes occur in the IP configuration: ■ IP address configuration is changed manually ■ IP address changes from Auto-IP to note when using the automatic IP configuration feature.
Implementation Guide
Page 88
... level user can only save operations to the manager. You can reset the Switch using the Configuration Save and Restore feature, 3Com recommends that aggregated links are configured as either: ■ Manual aggregations with Link Aggregation Configuration Protocol (LACP) disabled on all other users. ...are not available to all ports and the aggregated links created automatically. The aggregated link should be set up as manual aggregations with manual ports. The system summary CLI command displays the progress of the configuration. The restore operation will only perform a ...
... level user can only save operations to the manager. You can reset the Switch using the Configuration Save and Restore feature, 3Com recommends that aggregated links are configured as either: ■ Manual aggregations with Link Aggregation Configuration Protocol (LACP) disabled on all other users. ...are not available to all ports and the aggregated links created automatically. The aggregated link should be set up as manual aggregations with manual ports. The system summary CLI command displays the progress of the configuration. The restore operation will only perform a ...
Implementation Guide
Page 106
... the IP packets, the gateway determines the next network hop on your network, enter the IP address 0.0.0.0 or leave the field blank. If manually configuring IP information for a gateway is a Router. Default Gateways A gateway is a device on the path to the remote destination, and sends... either be the remote destination or another gateway closer towards the destination. An alternative name for the Switch, enter the IP address of the default gateway on your network which the Switch is located. "Remote" refers to a destination device that hop. 106 APPENDIX C: IP ADDRESSING Table...
... the IP packets, the gateway determines the next network hop on your network, enter the IP address 0.0.0.0 or leave the field blank. If manually configuring IP information for a gateway is a Router. Default Gateways A gateway is a device on the path to the remote destination, and sends... either be the remote destination or another gateway closer towards the destination. An alternative name for the Switch, enter the IP address of the default gateway on your network which the Switch is located. "Remote" refers to a destination device that hop. 106 APPENDIX C: IP ADDRESSING Table...
Implementation Guide
Page 120
... port security 16, 77, 78 priority in STP 43 priority levels 802.1D 52 Q QoS apply QoS profile 56 configuring traffic on a Switch 4200 55 creating profiles 56 How traffic is processed to provide QoS 55 service levels 55 traffic classification 55 Quality of VLANs 48 Bridge Identifier 43...portion 104 IP multicast addressing 33 IP routing address classes 103 L learned SDB entries 50 M MAC (Media Access Control) addresses IP address 102 manual configuration 74 masks subnet 104 Matrix (RMON group) 60 Max Age 44 multicast filtering 33 IGMP 36 multicasts, description 33 N network addresses 101 ...
... port security 16, 77, 78 priority in STP 43 priority levels 802.1D 52 Q QoS apply QoS profile 56 configuring traffic on a Switch 4200 55 creating profiles 56 How traffic is processed to provide QoS 55 service levels 55 traffic classification 55 Quality of VLANs 48 Bridge Identifier 43...portion 104 IP multicast addressing 33 IP routing address classes 103 L learned SDB entries 50 M MAC (Media Access Control) addresses IP address 102 manual configuration 74 masks subnet 104 Matrix (RMON group) 60 Max Age 44 multicast filtering 33 IGMP 36 multicasts, description 33 N network addresses 101 ...