3Com NJ220 manual Using the Central Configuration Manager

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48CHAPTER 4: USING THE CENTRAL CONFIGURATION MANAGER

In a strict priority scheme (the setting’s other option), all highest priority traffic will be removed from the buffer. After it is removed, the next priority traffic type would be removed, and so on. This ensures that the most important or time critical data is passed first, but it could potentially slow traffic from other ports.

18You can change the Outgoing (to LAN) tag scheme for the IntelliJack. By default, frames are transmitted unmodified. This setting ensures that you will not risk losing communication with upstream switches due to misaligned VLAN IDs (VIDs).

If you want to configure traffic from a port on the IntelliJack, you can add a tag to the frame. This lets you separate traffic into different VLANs.

19You can also change the Incoming (from LAN) tag scheme. By default, all frames are received unmodified. By receiving frames unmodified, you will not risk losing communication between upstream switches and the devices connected to the IntelliJack due to misaligned VIDs.

If an upstream switch is sending a tagged packet but the device connected to one of the IntelliJack ports does not need the tag information, you can remove the tag.

20It is common practice to set the VLAN ID (VID) of the management port to VID 1, and this is the default value.

The management port is the port through which all commands to and from the IntelliJack are communicated. You may want to separate management traffic from other network traffic by assigning the Management Port of the IntelliJack to a different VID. You should make sure that the VID for the management port of the IntelliJack is the same as the VID for management ports of upstream devices.

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Contents 3Com IntelliJack Switch NJ220 3Com Corporation Campus DriveMarlborough, MA 01752-3064Contents Troubleshooting the NJ220 Installing the NJ220 Intellijack Using a particular port Following diagram shows the back view of the IntelliJack Before You Begin Component Purpose 3C NumbersInstalling Using a Multi-port Ethernet Power Supply Using an Integrated Switch with Power Over EthernetSupply Using a Single-port Ethernet Power Supply Using the 3Com Local Power SupplyInstalling the NJ220 Intellijack Commercial Building Telecommunications Cabling Standard Installing the NJ220 Intellijack Installing the IntelliJack Installing the NJ220 Intellijack Connecting Devices to IntelliJackChecking the LEDs DescriptionInstalling the NJ220 Intellijack Installing Configuration Managers Installing the Configuration Managers Installing the Local and Central Configuration Managers Installing the Configuration Managers Installing the Local and Central Configuration Managers Installing the Configuration Managers Installing the Web Http//java.sun.com Http//YourServerIPAddress8080/3ComIJNJ/main/index.jsp Installing the Configuration Managers Using Local Configuration Manager Using the Local Configuration Manager Setting Advanced Using the Local Configuration Manager Using Central Configuration Manager Using the Central Configuration Manager Discovering NJ220 Devices on Your Network Using the Central Configuration Manager Viewing Device General Tab Port InformationProduct Information Hardware Settings Viewing Device Properties Using the Central Configuration Manager Statistics Log Snmp Settings Advanced Settings Alert Level Notifying Event Changing Device General Configuration Identification SettingsChanging Device Configuration Priority & Vlan Configuration Port Based SettingsOther Priority & Vlan Settings Using the Central Configuration Manager Password Security Configuration802.1X Using the Central Configuration Manager Changing Device Configuration Snmp Configuration Advanced Configuration Event Alert LevelsPort Based Controls Global Setting Default Value Restoring Default ValuesPriority Option Multiplier Rate limiting option Port Setting Default Value Changing Device Configuration Using the Central Configuration Manager Finding Computers Upgrading the NJ220 Upgrading the NJ220 Firmware Using the Central Configuration Manager Upgrading the NJ220 Firmware Using the Central Configuration Manager Troubleshooting the NJ220 Troubleshooting the NJ220 Your 3COM Products Access Software Country Telephone Number Asia, Pacific Rim Telephone Technical Support and RepairContract requests emeacontract@3com.com US and Canada Telephone Technical Support and RepairNetwork Interface HardwarePerformance Features MIB SupportEnvironment Standards ConformanceRmon Counters FfffffffffffCollisions are not included but are counted in the Excessive Page Product Specifications Regulatory Information Japan Vcci Compliance