3Com NJ220 manual Rmon Counters, Ffffffffffff

Page 77

Power forwarding

Power forwarding Port number 1 can be used with any standard

 

networking device as well as to power a device such as a VoIP

 

telephone on a network that uses IEEE 802.3af-compatible Power

 

Over Ethernet.

 

 

 

 

RMON Counters

 

 

InUnicasts

Total valid frames received with a unicast Destination Address.

 

A valid frame has a good FCS and its size is greater than 64

 

bytes and less than 1518 for non tagged frames, 1522 for

 

tagged frames, or 1535 if MaxFrameSize =1 (set in global

 

control register).

 

InBroadcasts

Total valid frames received with destination address equal to

 

FF:FF:FF:FF:FF:FF.

 

InPause

Total pause frames received.

 

InMulticasts

Total valid frames received with multicast destination address that

 

are not counted in InBroadcasts or InPause.

InFCSErr

Total frames received with a valid length and an invalid FCS.

AlignErr

Total frames received with valid length that have an invalid FCS

 

and a non-integral number of octets.

InGoodOctets

Total data octets received in frames with a valid FCS. Undersize

 

and oversize frames are included. The count includes the FCS

 

but not the preamble.

 

InBadOctets

Total data octets received in frames with an invalid FCS;

 

fragments and jabbers are included, The count includes the FCS

 

but not the preamble.

 

Undersize

Total frames received with a length

of less than 64 octets but a

 

valid FCS.

 

Fragments

Total frames received with a length

of less than 64 octets and

 

an invalid FCS

 

In64Octets

Total frames received with a length

of exactly 64 octets,

 

including those with errors.

 

In127Octets

Total frames received with a length

of between 65 and 127

 

octets inclusive, including those with errors.

In255Octets

Total frames received with a length

of between 128 and 255

 

octets inclusive, including those with errors.

In511Octets

Total frames received with a length

of between 256 and 511

 

octets inclusive, including those with errors.

In1023Octets

Total frames received with a length

of between 512 and 1023

 

octets inclusive, including those with errors.

InMaxOctets

Total frames received with a length

of between 1024 and

 

MaxSize octets inclusive, including those with errors.

Jabber

Total frames received with a length of more than MaxSize octets

 

but with an invalid FCS.

 

Oversize

Total frames received with a length of more than MaxSize octets

 

but with a valid FCS.

 

73

Image 77
Contents 3Com IntelliJack Switch NJ220 Campus Drive 3Com CorporationMarlborough, MA 01752-3064Contents Troubleshooting the NJ220 Installing the NJ220 Intellijack Using a particular port Following diagram shows the back view of the IntelliJack Component Purpose 3C Numbers Before You BeginInstalling Supply Using an Integrated Switch with Power Over EthernetUsing a Multi-port Ethernet Power Supply Using the 3Com Local Power Supply Using a Single-port Ethernet Power SupplyInstalling the NJ220 Intellijack Commercial Building Telecommunications Cabling Standard Installing the NJ220 Intellijack Installing the IntelliJack Installing the NJ220 Intellijack IntelliJack Connecting Devices toChecking 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 Port Information General TabProduct Information Hardware Settings Viewing Device Properties Using the Central Configuration Manager Statistics Log Snmp Settings Advanced Settings Alert Level Notifying Event Changing Device Identification Settings General ConfigurationChanging Device Configuration Port Based Settings Priority & Vlan ConfigurationOther Priority & Vlan Settings Using the Central Configuration Manager 802.1X Security ConfigurationPassword Using the Central Configuration Manager Changing Device Configuration Snmp Configuration Event Alert Levels Advanced ConfigurationPort Based Controls Priority Option Multiplier Rate limiting option Restoring Default ValuesGlobal Setting Default Value 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 Asia, Pacific Rim Telephone Technical Support and Repair Country Telephone NumberUS and Canada Telephone Technical Support and Repair Contract requests emeacontract@3com.comPerformance HardwareNetwork Interface MIB Support FeaturesEnvironment Standards ConformanceFfffffffffff Rmon CountersCollisions are not included but are counted in the Excessive Page Product Specifications Regulatory Information Japan Vcci Compliance