Workgroup a Workgroup B | Cabletron Systems 100 instruction

Introduction

Figure 1-6 shows two Ethernet segments that take advantage of the virtual workgroup feature of the SmartSTACK 100 ELS100-16TX and the increased bandwidth applied to each A and B host.

	Router
A	B
	ELS100-16TX

A	A	A		B	B	B
	Workgroup A			Workgroup B
		A	A	B	B

Figure 1-6. Using the SmartSTACK 100 ELS100-16TX to Create Virtual

Workgroups to Help Optimize Bandwidth

A host from workgroup A can limit a broadcast to all hosts within workgroup A and prevent the broadcast from going across the network and adding to the amount of contention for the limited 100 Mbps bandwidth.

Ports that are not part of a workgroup will receive and transmit packets from any ports. However, if you conﬁgure the SmartSTACK 100 ELS100-16TX with workgroup A and B, as shown in Figure 1-6, broadcast trafﬁc from workgroup A ports will not be seen on workgroup B ports, and vice versa.

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Cabletron Systems 100 manual Workgroup a Workgroup B

Contents

User Guide Page FCC Notice DOC Notice Cabletron Software Program License Declaration of Conformity Contents ELS100-16TX Diagnostics Troubleshooting Monitoring and Managing Your ELS100-16TX Appendix a Technical Specifications Appendix B Glossary Contents Viii Chapter Introduction About this Manual Getting Help Your email address Document Conventions Related Documentation Overview ELS100-16TX Front Panel SmartSTACK 100 ELS100-16TX Architecture Introduction Port Trunking Autonegotiation Store and Forward Switching Discarding Local Trafﬁc Typical Switching Application Spanning Tree Algorithm SmartSTACK 100 ELS100-16TX Bridge Address Table SmartSTACK 100 ELS100-16TX Port Mirroring SmartSTACK 100 ELS100-16TX Sample Applications SmartSTACK 100 ELS100-16TX Trunking Virtual Workgroups SmartSTACK 100 ELS100-16TX Trunking with 100 Mbps Ports Repeater Traffic Workgroup a Workgroup B Local Console Manager Command Syntax Conventions Basic LCM Commands Help ELS100-16TX Local Console Manager Traplog EraseExit or Logout Introduction Chapter Unpacking and Installing Your ELS100-16TX ELS100-16TX Front Panel Port LEDs 100BASE-T Epim Ports Reset Switch Status LEDs ACT Installing AN Epim Describes the ELS100-16TX buttons Installing an Epim Installing the ELS100-16TX Rack-Mounting an ELS100-16TX Attaching Rackmount Brackets Checking the POWER-UP Diagnostics Sequence Connecting the Local Console Manager Connecting to the Network Connecting UTP Cables ELS100-16TX Twisted Pair Connection Connecting a Segment to the EPIM-100FX Cable Pinouts RJ45 Crossover Cable Fiber Optic Network Connection EPIM-100FX Port Unpacking and Installing Your ELS100-16TX Chapter Configuring Your ELS100-16TX Spectrum Spel Spma Assigning IP Addresses Type ipaddr PORT-NUMBER IP Address Changing a Subnet Mask Displaying IP AddressesDeleting an IP Address Enabling Bridging To change the subnet mask, at the LCM prompt Disabling Bridging Displaying Bridging Functions Enabling Trunking Trunk Groups 100BASE-T Crossover Cables Trunk Groups Disabling Trunking Displaying Trunking Status Display could look like the following Enabled, Rip listening Enabling Port Mirroring Disabling Mirroring Displaying Mirroring Status To check the status for ports conﬁgured for mirroring Defining and Deleting Workgroups Deﬁning Virtual Workgroups LCM responds with the following display Assigning a Community Name Configuring BROADCAST/MULTICAST Storm Protection Modifying MIB Variables System Contact Community Names System NameSystem Location Set Community Name Aging Parameter ELS100-16TX Statistics Chapter Monitoring and Managing Your ELS100-16TXELS100-16TX Management Tools Gathering Statistics System Statistics Ethernet Port Statistics Using LCM to Check ELS100-16TX Status Displaying Status Enabled, Rip listening Displaying MAC Addresses To display all MAC addresses, at the LCM prompt Displaying Manufacturing Information LCM would display Using LCM to Manage the ELS100-16TX Managing the ELS100-16TX Disabling a Port Enabling a Port NoRIP Option Changing a Community Name Setting the Baud Rate Setting a Reboot Time Power-up LED Sequence Chapter ELS100-16TX Diagnostics and TroubleshootingPOWER-UP Diagnostics Speciﬁc Power-up Tests Software Checksum Comparison Status and Activity Indicators Power-up Diagnostics ResultsResponses to Failures AT POWER-UP ELS100-16TX Front Panel LEDs ACT ELS100-16TX does not Power UP 3 ELS100-16TX Does Not Respond to NMS Connectivity Problems2 ELS100-16TX Has Rebooted ELS100-16TX Diagnostics and Troubleshooting Electrical Connector PortsPhysical Environmental Diagnostic LEDs Standard Support Regulatory Compliance Address Table SizeManagement Support Serial Cable PIN Assignments Connectors 100BASE-T PIN Assignments STRAIGHT-THROUGH Wiring Crossover Wiring EPIM-100FX Specifications 5 4 3 Rule Cable Type Worst Case Budget Typical Budget Technical Speciﬁcations Address table AlarmAddress Agent Bpdu bridge protocol data unit BackboneBandwidth Bps bits per second Datagram CongestionData link layer Data rate or speed Encode Full wire speedEncapsulation Entity Ieee Intelligent bridge/switchIcmp Internet control message protocol Initialization IP Internet protocol InternetworkingInteroperability ISO International Standards Organization Mbps megabits per second MAC media access controlMask MIB management information base OSI Open Systems Interconnection Power budgetPropagation delay Packet Protocol Rarp reverse address resolution protocolService Protocol suite Synchronous transmission SwitchSymbol Translating bridge Upstream WAN wide area network Glossary