3Com C17304, 3C17300, C17302 Solving Stack, Formation, How do you obtain a registered IP Address?

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56CHAPTER 4: PROBLEM SOLVING

The IP address is split into two parts:

■ The first part (‘192.168.100’ in the example) identifies the network on which the device resides

■ The second part (‘.8’ in the example) identifies the device within the network

 

The natural subnet mask for this example is 255.255.255.0.

 

If your network has a connection to the external IP network, that is, you

 

access the Internet, you must apply for a registered IP address.

 

How do you obtain a registered IP Address?

 

The IP registration system ensures that every IP address used is unique; if

 

you do not have a registered IP address, you may be using an identical

 

address to someone else and your network will not operate correctly.

 

InterNIC Registration Services is the organization responsible for

 

supplying registered IP addresses. The following contact information is

 

correct at time of publication:

 

World Wide Web site: http://www.internic.net

 

If your IP network is internal to your organization only, that is, you do not

 

access the Internet, you may use any arbitrary IP address as long as it is

 

not being used by another device on your network. 3Com suggests you

 

use addresses in the series 192.160.100.X (where X is a number between

 

1 and 254) with a subnet mask of 255.255.255.0.

 

These suggested IP addresses are part of a group of IP addresses that

 

have been set aside specially for use ‘in house’ only.

 

 

Solving Stack

If you are having problems with correctly forming a stack, first ensure that

Formation

Spanning Tree is enabled. If it is enabled, do the following:

Problems

 

 

1 Power off all units in the stack.

 

2 Check all the cable connections in the stack.

 

3 Power on all units in the stack.

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Contents SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Setting UP for Management PIN-OUTS Index Regulatory Notices About this Guide Convention Description ConventionsIcon Description Related DocumentationProduct Introducing About the Switch SeriesSwitch 4200 Series Front View DetailIntroducing the Superstack 3 Switch 4200 Series Fiber GBICs 1000BaseT GBICsColor Indicates Port Status LEDs 10BASE-T/100BASE-TX ports Port Status LEDs Gbic portsPower/Self Test LED Color IndicatesUnit LEDs Alert LEDSystem RPS. See Connecting a Redundant Power System on Rear View DetailFeature Switch 4200 Series Automatic IP Configuration Duplex ModeRmon Alarm Quality of Service QoSInstalling the Switch Site Package ContentsChoosing a Suitable Rack-mounting Repeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack-mountingStacking Units Unit line up with the recesses of the lower unitOn the unit above. Cable lengths of between 14 cm 5.5 100 m 328 ft can be used for stackingPower-up Powering-upSwitch 4200 Series SequencePower/Self Test LED colors Color StateFiber cables Cross-over Cable Straight-through CableTransceivers Gbic OperationApproved Gbic The 3Com approved Gbic transceivers are Installing the Switch Gbic Installing the Switch Setting UP for Management Setting Up Configure IP information manually for your Switch or viewAutomatically configured IP information OverviewManual IP Configuration Automatic IP ConfigurationSetting UP for Management Manually Configuring IP Information Pre-requisitesSetting Up the Switch with IP Information Connecting the Workstation to the SwitchConfiguring the Workstation with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu Connecting a workstation to the Switch via the console port Setting Up the Switch with IP Information Example top-level command line interface menu Automatically Configured IPViewing Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Methods of Managing a Switch Refer to Setting Up Command Line Interface Management on Command Line Network Using TelnetInterface Management CLI Management viaChoosing a Browser Setting Up WebInterface Setting Up Snmp Management Protocol Snmp can manage a Switch ifOver the Network Management workstationDefault Users User Default Name Password Access LevelSecurity Device User Modify operation on the web interface Setting UP for Management Problem Solving For Technical Support information, see Appendix DSolving Problems Solutions belowPower LED does not light On powering-up, the Power/Self Test LED lights yellowProblems Solving Communication ProblemsSolving Hardware Snmp fan fail trap hardware failure IP AddressingHow do you obtain a registered IP Address? Solving StackFormation Solving Software Upgrade Problems Problem Solving Safety Information Important Safety Information This must be approved for the country where it is usedImportant Safety Information ’information de Sécurité Importante ’information de Sécurité Importante Wichtige Sicherheitsinformationen Vorsicht Europe Appendix a Safety Information Null Modem Cable PC-AT Serial CablePin to RS-232 25-pin Pin to 9-pinConnectors Pin Number Signal FunctionModem Cable RJ-45 PinPin Assignments RJ-45 connectors1000BASE-T RJ-45 Pin assignments Switch 4226T 3C17300 Terminal Emulation Protocols Used for AdministrationStandards Supported Switch 4250T 3C17302 SnmpSwitch 4228G 3C17304 Services Online TechnicalUsername anonymous Asia, Pacific Rim From this region, e-mailEurope, Middle East and Africa From this region, enter the URLAsia, Pacific Rim Europe, Middle East, and AfricaCountry Telephone Number Asia, Pacific Rim Country Telephone Number Latin America Index Snmp Regulatory Notices
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C17304, C17302, 3C17300 specifications

The 3Com C17304, 3C17300, and C17302 are notable models in the 3Com networking product line, renowned for their performance and technological advancements. These models cater to various networking environments, providing robust solutions for both small and medium-sized businesses as well as larger enterprises seeking reliable connectivity.

The 3Com C17304 is recognized for its formidable capacity and flexibility. It offers a high port density, which allows for multiple devices to connect without compromising performance. This model features built-in support for Power over Ethernet (PoE), enabling the powering of devices such as IP cameras and phones directly through the network cable. The 3Com C17304 is designed with advanced security features, including integrated VLAN support for traffic segmentation and enhanced security protocols to protect sensitive data.

The 3C17300 is another essential player in this lineup, embodying versatility and ease of use. This model is equipped with a user-friendly interface that simplifies network management, making it accessible for IT professionals at all levels. The 3C17300 includes capabilities for Layer 2 switching, providing efficient data forwarding with minimal latency. Its intelligent features, such as link aggregation and QoS (Quality of Service), ensure optimized bandwidth utilization while prioritizing critical applications.

Meanwhile, the C17302 is specifically engineered for performance-driven environments. It excels in delivering high-speed connectivity with its support for Gigabit Ethernet, significantly enhancing data transfer rates. The C17302 also incorporates advanced routing capabilities, allowing for dynamic network management and improved performance in complex network topologies. Furthermore, this model boasts reliability with redundancy features designed to minimize downtime, ensuring consistent access to network resources.

All three models leverage innovative technologies to deliver superior performance. They support various standards such as IEEE 802.1Q for VLAN tagging and IEEE 802.3ad for link aggregation. User-centric features like SNMP for network monitoring and troubleshooting enhance the overall management experience. These switches are built to provide scalability, enabling businesses to expand their networks seamlessly as demands grow.

In summary, the 3Com C17304, 3C17300, and C17302 showcase advanced features, reliability, and effective performance, making them integral components of modern networking solutions. Ideal for a range of applications, they help businesses optimize their network infrastructure while maintaining robust security and efficient data handling.
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