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Cabletron Systems 100 manual Ethernet Port Statistics

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Monitoring and Managing Your ELS100-16TX

•The number of spanning tree topology changes that have occurred since the ELS100-16TX was last reset.

•The time since a topology change was last initiated.

•The physical location of the ELS100-16TX.

•The name and address of the contact person for the ELS100- 16TX.

•The name of the ELS100-16TX.

•The current number of dynamic (learned) addresses.

Note: To check ELS100-16TX system status using LCM, see Section 4.3.

4.2.3 Ethernet Port Statistics

For each Ethernet port connection on the ELS100-16TX, a number of statistics are available. They can help you analyze both network activity and utilization, and in some cases, indicate faulty equipment or cabling.

Note: All statistics counters are cleared when the ELS100-16TX is reset or when the LCM clearstat command is used.

•The number of non-unicast (multicast and broadcast) and unicast packets received from the port.

The following statistics are available with SNMP:

•The number of bytes in the received packets.

•The number of bytes in the packets that were ﬁltered.

•The number of bytes in the packets that were forwarded.

•The total number of packets transmitted to the LAN.

4-3

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Cabletron Systems 100 manual Ethernet Port Statistics

Contents

User Guide Page FCC Notice DOC Notice Cabletron Software Program License Declaration of Conformity Contents Monitoring and Managing Your ELS100-16TX ELS100-16TX Diagnostics Troubleshooting Appendix B Glossary Appendix a Technical Specifications Contents Viii Chapter Introduction About this Manual Your email address Getting Help Document Conventions Related Documentation ELS100-16TX Front Panel Overview SmartSTACK 100 ELS100-16TX Architecture Introduction Autonegotiation Port Trunking Discarding Local Trafﬁc Store and Forward Switching Spanning Tree Algorithm Typical Switching Application SmartSTACK 100 ELS100-16TX Bridge Address Table SmartSTACK 100 ELS100-16TX Sample Applications SmartSTACK 100 ELS100-16TX Port Mirroring SmartSTACK 100 ELS100-16TX Trunking SmartSTACK 100 ELS100-16TX Trunking with 100 Mbps Ports Virtual Workgroups Repeater Traffic Workgroup a Workgroup B Local Console Manager Command Syntax Conventions Help Basic LCM Commands ELS100-16TX Local Console Manager Traplog EraseExit or Logout Introduction ELS100-16TX Front Panel Chapter Unpacking and Installing Your ELS100-16TX Port LEDs 100BASE-T Epim Ports Reset Switch Status LEDs ACT Describes the ELS100-16TX buttons Installing AN Epim Installing an Epim Rack-Mounting an ELS100-16TX Installing the ELS100-16TX Attaching Rackmount Brackets Connecting the Local Console Manager Checking the POWER-UP Diagnostics Sequence Connecting to the Network ELS100-16TX Twisted Pair Connection Connecting UTP Cables Cable Pinouts RJ45 Crossover Cable Connecting a Segment to the EPIM-100FX Fiber Optic Network Connection EPIM-100FX Port Unpacking and Installing Your ELS100-16TX Spectrum Spel Spma Chapter Configuring Your ELS100-16TX Assigning IP Addresses Type ipaddr PORT-NUMBER IP Address Changing a Subnet Mask Displaying IP AddressesDeleting an IP Address To change the subnet mask, at the LCM prompt Enabling Bridging Displaying Bridging Functions Disabling Bridging Enabling Trunking 100BASE-T Crossover Cables Trunk Groups Trunk Groups Disabling Trunking Display could look like the following Displaying Trunking Status Enabled, Rip listening Disabling Mirroring Enabling Port Mirroring Displaying Mirroring Status To check the status for ports conﬁgured for mirroring Deﬁning Virtual Workgroups Defining and Deleting Workgroups LCM responds with the following display Assigning a Community Name Configuring BROADCAST/MULTICAST Storm Protection System Contact Modifying MIB Variables Community Names System NameSystem Location Aging Parameter Set Community Name ELS100-16TX Statistics Chapter Monitoring and Managing Your ELS100-16TXELS100-16TX Management Tools System Statistics Gathering Statistics Ethernet Port Statistics Displaying Status Using LCM to Check ELS100-16TX Status Enabled, Rip listening Displaying MAC Addresses To display all MAC addresses, at the LCM prompt LCM would display Displaying Manufacturing Information Managing the ELS100-16TX Using LCM to Manage the ELS100-16TX Enabling a Port Disabling 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 Software Checksum Comparison Speciﬁc Power-up Tests 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 Environmental Connector PortsPhysical Electrical Standard Support Diagnostic LEDs Serial Cable PIN Assignments Address Table SizeManagement Support Regulatory Compliance 100BASE-T PIN Assignments Connectors Crossover Wiring STRAIGHT-THROUGH Wiring 5 4 3 Rule EPIM-100FX Specifications Cable Type Worst Case Budget Typical Budget Technical Speciﬁcations Agent AlarmAddress Address table Bps bits per second BackboneBandwidth Bpdu bridge protocol data unit Data rate or speed CongestionData link layer Datagram Entity Full wire speedEncapsulation Encode Initialization Intelligent bridge/switchIcmp Internet control message protocol Ieee ISO International Standards Organization InternetworkingInteroperability IP Internet protocol MIB management information base MAC media access controlMask Mbps megabits per second Packet Power budgetPropagation delay OSI Open Systems Interconnection Protocol suite Rarp reverse address resolution protocolService Protocol Translating bridge SwitchSymbol Synchronous transmission WAN wide area network Upstream Glossary