Implementation Guide
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... and Network Resiliency 164 Bridging Implementation Summary 165 Key Guidelines for Implementation 167 Physical Ports and Bridge Ports 167 Option For Fast Aging 167 If You Want To Use STP 167 Port Forwarding Behavior 168 Routing Over Blocked STP Ports 168 STP Compatible with Trunking 168 STP Not Compatible with Resilient Links 169 Bridge Ports and Trunks 169 Multicast Limits and Trunks 169 Bridge Port Addresses in Closed VLAN Mode 169 GVRP Usefulness 169 STP Terms...
... and Network Resiliency 164 Bridging Implementation Summary 165 Key Guidelines for Implementation 167 Physical Ports and Bridge Ports 167 Option For Fast Aging 167 If You Want To Use STP 167 Port Forwarding Behavior 168 Routing Over Blocked STP Ports 168 STP Compatible with Trunking 168 STP Not Compatible with Resilient Links 169 Bridge Ports and Trunks 169 Multicast Limits and Trunks 169 Bridge Port Addresses in Closed VLAN Mode 169 GVRP Usefulness 169 STP Terms...
Implementation Guide
Page 48
... traffic flows, or implement security controls with standard, custom, predefined, and port group packet filters, see Chapter 9. s IP Multicast - See Chapter 16. See Chapter 20. To label Ethernet ports, set parameters for Spanning Tree Protocol, IPX SNAP translation, and IP fragmentation, and address aging options, see Chapter 15. To create logical workgroups in Multilayer Switching Modules, you define VLANs. Be sure to configure routing interfaces and set related modes. On Multilayer Switching Modules...
... traffic flows, or implement security controls with standard, custom, predefined, and port group packet filters, see Chapter 9. s IP Multicast - See Chapter 16. See Chapter 20. To label Ethernet ports, set parameters for Spanning Tree Protocol, IPX SNAP translation, and IP fragmentation, and address aging options, see Chapter 15. To create logical workgroups in Multilayer Switching Modules, you define VLANs. Be sure to configure routing interfaces and set related modes. On Multilayer Switching Modules...
Implementation Guide
Page 72
set terminal console hangup set terminal console prompt set terminal timeout system set terminal timeout session 3 Configure contact information, set eme contact customize the prompt, and enable set snmp * The order of configuration is important in this chapter. 4 Set the time and date. See "Configuring User Logins" in some networks. Table 19 Configuration Steps Procedure* Command 1 Configure your management options. set eme location See "Customizing Your System" in this chapter. 5 Configure user login criteria. Saving Configuration Values When you are saved ...
set terminal console hangup set terminal console prompt set terminal timeout system set terminal timeout session 3 Configure contact information, set eme contact customize the prompt, and enable set snmp * The order of configuration is important in this chapter. 4 Set the time and date. See "Configuring User Logins" in some networks. Table 19 Configuration Steps Procedure* Command 1 Configure your management options. set eme location See "Customizing Your System" in this chapter. 5 Configure user login criteria. Saving Configuration Values When you are saved ...
Implementation Guide
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... steps (for access to the embedded Web server. Enter commands at the Password: prompt (factory default is no longer require a connection to the system, use to prepare the system (the EME's CLI) to receive connections from terminals or remote workstations or receive requests for SNMP, you may need to configure additional options. Setting Up an IP Address for Telnet If you configure an IP address, you have a direct terminal connection. 2 Log in with...
... steps (for access to the embedded Web server. Enter commands at the Password: prompt (factory default is no longer require a connection to the system, use to prepare the system (the EME's CLI) to receive connections from terminals or remote workstations or receive requests for SNMP, you may need to configure additional options. Setting Up an IP Address for Telnet If you configure an IP address, you have a direct terminal connection. 2 Log in with...
Implementation Guide
Page 75
...'s Ethernet port to your system. Serial Line Internet Protocol Connections Vendors initiate Serial Line Internet Protocol (SLIP) sessions differently. To connect to the EME in-band: 1 Make sure that you can create one outgoing Telnet session on the EME using the following command: set up IP connectivity for your network. In routed networks, you have logged out of the device on the screen. See "Configuring User Logins"for more information. 2 Use Telnet or SNMP...
...'s Ethernet port to your system. Serial Line Internet Protocol Connections Vendors initiate Serial Line Internet Protocol (SLIP) sessions differently. To connect to the EME in-band: 1 Make sure that you can create one outgoing Telnet session on the EME using the following command: set up IP connectivity for your network. In routed networks, you have logged out of the device on the screen. See "Configuring User Logins"for more information. 2 Use Telnet or SNMP...
Implementation Guide
Page 89
... four remote (Telnet) sessions can be logged in , that user has access to Write-level functions only. If a second user with Administer access privileges tries to log in with a user name that configure IP information, community tables, and download software. s The user who enters the command immediately assumes Administer privileges. The user can change passwords, as well as: s Configure EME IP address information s Configure community tables s Download new operational and boot code s Write - To add login names...
... four remote (Telnet) sessions can be logged in , that user has access to Write-level functions only. If a second user with Administer access privileges tries to log in with a user name that configure IP information, community tables, and download software. s The user who enters the command immediately assumes Administer privileges. The user can change passwords, as well as: s Configure EME IP address information s Configure community tables s Download new operational and boot code s Write - To add login names...
Implementation Guide
Page 187
... you manually add to a module or the chassis, reboot the module or chassis, or reset non-volatile data. you can each VLAN operates with a specific port and is flushed any time that in effect each store up to one greater than the address table; s In closed VLAN mode, the address table is reached, the module generates the SNMP trap called addressThresholdEvent. Specifically, when this parameter is contiguous. s The address threshold (Multilayer Switching Modules...
... you manually add to a module or the chassis, reboot the module or chassis, or reset non-volatile data. you can each VLAN operates with a specific port and is flushed any time that in effect each store up to one greater than the address table; s In closed VLAN mode, the address table is reached, the module generates the SNMP trap called addressThresholdEvent. Specifically, when this parameter is contiguous. s The address threshold (Multilayer Switching Modules...
Implementation Guide
Page 232
... media type (for example, Fast Ethernet and Gigabit Ethernet), you are prompted for a media type before you display information on the interface module. s Each Gigabit Ethernet (GEN) Switch Fabric Module (Model Number 3CB9FG24T) that the TCMP state be enabled. You must modify the VLAN and add the new bridge port to the selected operating mode (half-duplex or full-duplex). s All ports in a group (12x6). 232 CHAPTER 12: TRUNKING s 3Com recommends that you install provides port trunking support for...
... media type (for example, Fast Ethernet and Gigabit Ethernet), you are prompted for a media type before you display information on the interface module. s Each Gigabit Ethernet (GEN) Switch Fabric Module (Model Number 3CB9FG24T) that the TCMP state be enabled. You must modify the VLAN and add the new bridge port to the selected operating mode (half-duplex or full-duplex). s All ports in a group (12x6). 232 CHAPTER 12: TRUNKING s 3Com recommends that you install provides port trunking support for...
Implementation Guide
Page 242
... Console. (See the Command Reference Guide.) You can use the Administration Console after you control the configuration of attachment to a given VLAN is generally considered equivalent to as Internet Group Management Protocol (IGMP) snooping to provide further controls on a router. For the Switch 4007, a VLAN interface exists entirely within a single switching module or switch fabric module; As networks grow and the amount and types of traffic increase, bridge flooding may create unnecessary traffic problems that allows end users...
... Console. (See the Command Reference Guide.) You can use the Administration Console after you control the configuration of attachment to a given VLAN is generally considered equivalent to as Internet Group Management Protocol (IGMP) snooping to provide further controls on a router. For the Switch 4007, a VLAN interface exists entirely within a single switching module or switch fabric module; As networks grow and the amount and types of traffic increase, bridge flooding may create unnecessary traffic problems that allows end users...
Implementation Guide
Page 245
... IP interface as the protocol of protocol-based VLAN called the default VLAN. The system also supports static VLAN configuration for both Layer 2 and Multilayer Switching Modules, and dynamic port-based VLAN configuration for the port-, protocol-, and network-based VLANs. See "VLAN allOpen or allClosed Mode" later in Table 48. This type of VLAN, which the frame was received. Table 48 VLAN Features Feature VLAN mode: allOpen or allClosed Layer 2 Modules and Switch Fabric Module Yes Multilayer Modules Yes Per-port Yes...
... IP interface as the protocol of protocol-based VLAN called the default VLAN. The system also supports static VLAN configuration for both Layer 2 and Multilayer Switching Modules, and dynamic port-based VLAN configuration for the port-, protocol-, and network-based VLANs. See "VLAN allOpen or allClosed Mode" later in Table 48. This type of VLAN, which the frame was received. Table 48 VLAN Features Feature VLAN mode: allOpen or allClosed Layer 2 Modules and Switch Fabric Module Yes Multilayer Modules Yes Per-port Yes...
Implementation Guide
Page 252
... to specify the interface type of a router port IP VLAN as router, as well as the port that you define a router port IP interface, note the following events occur: s The Multilayer Switching Module deletes all other VLANs and enables the router port to ignore Spanning Tree states on a Multilayer Switching Module, see Chapter 16. s To disable bridging entirely for a router port requires that you had configured, keeping in mind that use a routing over bridging model, in which is...
... to specify the interface type of a router port IP VLAN as router, as well as the port that you define a router port IP interface, note the following events occur: s The Multilayer Switching Module deletes all other VLANs and enables the router port to ignore Spanning Tree states on a Multilayer Switching Module, see Chapter 16. s To disable bridging entirely for a router port requires that you had configured, keeping in mind that use a routing over bridging model, in which is...
Implementation Guide
Page 401
... broadcast advertisements to the IP addresses it (using the Administration console, the Web Management console, or SNMP) as follows. Also called the Master router. This is the Master when: s You configure it controls. Packet forwarding responsibility then shifts back to one of the IP packet. s Virtual router initialize - The backup process works as the primary IP address for a given interface. The VRRP router that supply the source of the virtual...
... broadcast advertisements to the IP addresses it (using the Administration console, the Web Management console, or SNMP) as follows. Also called the Master router. This is the Master when: s You configure it controls. Packet forwarding responsibility then shifts back to one of the IP packet. s Virtual router initialize - The backup process works as the primary IP address for a given interface. The VRRP router that supply the source of the virtual...
Implementation Guide
Page 428
... form IP multicast tunnels. Supporting Protocol in Your Module Switch 4007 Multilayer Switching Modules use the Distance-Vector Multicast Routing Protocol (DVMRP) to have a similar IP multicast filtering capability in this chapter. Specific aspects of tunnel configuration are explained later in Layer 2 switches. If multiple ports are configured in Switch 4007 Layer 2 Switching Modules. These are described later in this capability in an interface, a router sends copies of the group traffic to all ports, even...
... form IP multicast tunnels. Supporting Protocol in Your Module Switch 4007 Multilayer Switching Modules use the Distance-Vector Multicast Routing Protocol (DVMRP) to have a similar IP multicast filtering capability in this chapter. Specific aspects of tunnel configuration are explained later in Layer 2 switches. If multiple ports are configured in Switch 4007 Layer 2 Switching Modules. These are described later in this capability in an interface, a router sends copies of the group traffic to all ports, even...
Implementation Guide
Page 443
... default route. s Set the default route mode. There are two options: s all other known routes to neighboring DVMRP routers. s The module allows you s Specify the interface index number. Specify a value from 1 through 32 to neighboring DVMRP routers. Thus, if a neighboring router receives an IP multicast packet for IP multicast traffic on any DVMRP Default Routes routing interface in its routing table, instead of the route. s only - If DVMRP is disabled on an interface, you to Configure A Default Route To configure a default route...
... default route. s Set the default route mode. There are two options: s all other known routes to neighboring DVMRP routers. s The module allows you s Specify the interface index number. Specify a value from 1 through 32 to neighboring DVMRP routers. Thus, if a neighboring router receives an IP multicast packet for IP multicast traffic on any DVMRP Default Routes routing interface in its routing table, instead of the route. s only - If DVMRP is disabled on an interface, you to Configure A Default Route To configure a default route...
Implementation Guide
Page 571
... to insert into forwarded frames. s QoS bandwidth - s Timer option - Marking packets as loss eligible. s IEEE 802.1Q priority tag - Low-priority packets have no bandwidth allocated. By default, 75 percent of the bandwidth is used for high-priority traffic and 25 percent is used for flow classifiers that are configured for the specific control. TCP drop control allows you to create QoS Flow Classifiers that are loss...
... to insert into forwarded frames. s QoS bandwidth - s Timer option - Marking packets as loss eligible. s IEEE 802.1Q priority tag - Low-priority packets have no bandwidth allocated. By default, 75 percent of the bandwidth is used for high-priority traffic and 25 percent is used for flow classifiers that are configured for the specific control. TCP drop control allows you to create QoS Flow Classifiers that are loss...
Implementation Guide
Page 617
... can provide valuable troubleshooting tools. Management by exception - Key Concepts and Tools 617 Network Management Platform The network management platform allows you to view the health of your Transcend® Network Control Services software installation can conduct network management by exception is unlike traditional SNMP management, in the users' work together and the role they receive an SNMP query. Management applications then make the data useful and alert the user if there are only...
... can provide valuable troubleshooting tools. Management by exception - Key Concepts and Tools 617 Network Management Platform The network management platform allows you to view the health of your Transcend® Network Control Services software installation can conduct network management by exception is unlike traditional SNMP management, in the users' work together and the role they receive an SNMP query. Management applications then make the data useful and alert the user if there are only...
Implementation Guide
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660 APPENDIX A: TECHNICAL SUPPORT To connect to the 3Com FTP site, enter the following number: 1 847 262 6000 U.S.A. Data Rate Up to 14,400 bps Up to 14,400 bps Up to 14,...Access by modem, set your FTP client: s Hostname: ftp.3com.com (or 192.156.136.12) s Username: anonymous s Password: You do not need a user name and password with Web browser software such as Netscape Navigator and Internet Explorer. 3Com Bulletin Board Service The 3Com BBS contains patches, software, and drivers for fast access up to 8 data bits, no parity, and 1 stop bit. U.K. Call the telephone number...
660 APPENDIX A: TECHNICAL SUPPORT To connect to the 3Com FTP site, enter the following number: 1 847 262 6000 U.S.A. Data Rate Up to 14,400 bps Up to 14,400 bps Up to 14,...Access by modem, set your FTP client: s Hostname: ftp.3com.com (or 192.156.136.12) s Username: anonymous s Password: You do not need a user name and password with Web browser software such as Netscape Navigator and Internet Explorer. 3Com Bulletin Board Service The 3Com BBS contains patches, software, and drivers for fast access up to 8 data bits, no parity, and 1 stop bit. U.K. Call the telephone number...
Implementation Guide
Page 668
... 9000 bridging and routing model 356 intranetwork router 354 subnetworking 354 CoreBuilder 9000> prompt, changing 82, 83 cost OSPF 470 Spanning Tree settings 186 creating VLANs via GVRP 277 crossover cable, MDI-to-MDI 64 CSMA/CD (Carrier Sense Multiple Access With Collision Detection) 146, 159 custom packet filters 310 customer service 109 D DAS (dual attachment station) pairs and port numbering 142 data centers 152 data link layer AppleTalk 539...
... 9000 bridging and routing model 356 intranetwork router 354 subnetworking 354 CoreBuilder 9000> prompt, changing 82, 83 cost OSPF 470 Spanning Tree settings 186 creating VLANs via GVRP 277 crossover cable, MDI-to-MDI 64 CSMA/CD (Carrier Sense Multiple Access With Collision Detection) 146, 159 custom packet filters 310 customer service 109 D DAS (dual attachment station) pairs and port numbering 142 data centers 152 data link layer AppleTalk 539...
Implementation Guide
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... link aggregation 147 media specifications 159 network capacity providing 147 recommendations 152 packet fields 307 ports autonegotiation 154 duplex mode 156 enabling and disabling 153 labeling 153 monitoring 158 PACE Interactive Access 146, 158 speed 156 Trunk Control Message Protocol (TCMP) 146 replacing modules 144 standards (IEEE) 159, 234 Ethernet port 63 event group, RMON 641 event log 100, 618 examples Ignore STP mode 293 Layer 2 VLAN 272, 274 network-based VLANs 290 one-armed routing 286 routing between Layer 3 modules...
... link aggregation 147 media specifications 159 network capacity providing 147 recommendations 152 packet fields 307 ports autonegotiation 154 duplex mode 156 enabling and disabling 153 labeling 153 monitoring 158 PACE Interactive Access 146, 158 speed 156 Trunk Control Message Protocol (TCMP) 146 replacing modules 144 standards (IEEE) 159, 234 Ethernet port 63 event group, RMON 641 event log 100, 618 examples Ignore STP mode 293 Layer 2 VLAN 272, 274 network-based VLANs 290 one-armed routing 286 routing between Layer 3 modules...
Implementation Guide
Page 681
... IP address masks 578 Spanning Tree CBPDU 170 designated bridge 171 designated port 171 enabling 183 IP multicast 435 port identifier 173 root bridge 170 root port 171 spanning tree IP multicast 435 specifications, technical EME 69 speed Ethernet ports 156 Fast Ethernet ports 156 SPGM (source port group mask) 337 stack 321 standard packet filter 309 standards IEEE 802.1p 568, 569 related to QoS and RSVP 568 standby port and resilient links...
... IP address masks 578 Spanning Tree CBPDU 170 designated bridge 171 designated port 171 enabling 183 IP multicast 435 port identifier 173 root bridge 170 root port 171 spanning tree IP multicast 435 specifications, technical EME 69 speed Ethernet ports 156 Fast Ethernet ports 156 SPGM (source port group mask) 337 stack 321 standard packet filter 309 standards IEEE 802.1p 568, 569 related to QoS and RSVP 568 standby port and resilient links...