ZyXEL Communications P841C manual Ethernet Status Counters, Counter Meaning

Page 30

P841C Central-Side VDSL Modem

Type this command to display P841C and the subscriber’s VDSL modem’s Ethernet statistics (if link is up).

P841C>enet

status

 

 

 

LT PHY: LSI

80225

 

 

 

LT Ethernet

speed: Link Down!

 

 

LT Ethernet

Counters:

 

 

 

ALGM_ERR

= 0

SINGLE_COL = 0

MUL_COL = 0

 

LATE_COL

= 0

EXC_COL = 0

MACRX_ERR = 0

CS_ERR = 0

FTL_ERR =

0

FCS_ERR = 0

OTO = 0

ORO = 0

BCF = 0

 

 

RXPAUS = 0

TXPAUS = 0

TXBCNT = 0

RXBCNT =

0

 

TX_DEF = 0

 

 

NT Ethernet

Counters:

 

 

 

ALGM_ERR

= 0

SINGLE_COL = 0

MUL_COL = 0

 

LATE_COL

= 0

EXC_COL = 0

MACRX_ERR = 0

CS_ERR = 0

FTL_ERR =

0

FCS_ERR = 0

OTO = 0

ORO = 0

BCF = 0

 

 

RXPAUS = 0

TXPAUS = 0

TXBCNT = 0

RXBCNT =

0

 

TX_DEF = 0

 

 

P841C>

 

 

 

 

 

 

 

 

 

 

 

 

Figure 5-1 Ethernet Status

 

Table 5-1 Ethernet Status Counters

 

 

COUNTER

MEANING

 

 

ALGM_ERR

This is the number of frames received with alignment errors (odd number of nibbles).

 

 

SINGLE_COL

A count of successfully transmitted frames for which transmission is inhibited by exactly one

 

collision.

MUL_COL

A count of successfully transmitted frames for which transmission was inhibited by more than one

 

collision.

LATE_COL

The number of times that a collision was detected on a particular interface later than 512 bit-times

 

into the transmission of a packet.

 

 

EXC_COL

A count of frames for which transmission failed due to excessive collisions. Excessive collision is

 

defined as the number of maximum collisions before the retransmission count is reset.

MACRX_ERR

This counter contains the number of frames received that were less than 64 bytes. These frames

 

are discarded.

CS_ERR

The number of times that the carrier sense condition was lost or never asserted when attempting

 

to transmit a frame on a particular interface.

 

 

FTL_ERR

This counter contains the number of frames received that were more than maximum length (1536

 

bytes). These frames are discarded.

FCS_ERR

Frame Check Sequence Errors.

 

 

OTO

A count of data and padding octets of frames that are successfully transmitted.

 

 

ORO

A count of data and padding octets of frames that are successfully received.

 

 

BCF

A count of frames that are successfully received and are directed to the broadcast group address.

 

 

RXPAUS

The number of received PAUSE packets.

 

 

TXPAUS

The number of PAUSE packets transmitted.

 

 

TXBCNT

This counter indicates the number of valid data frames that have been transferred over the

 

transmit channel.

RXBCNT

This counter indicates the number of valid data frames that have been transferred over the

 

receive channel.

 

 

TX_DEF

A count of frames for which the first transmission attempt was delayed because the Ethernet

 

media was busy.

5-2

Ethernet-Related Commands

Image 30
Contents P841C Copyright Copyright 2002 by ZyXEL Communications CorporationZyXEL Limited Warranty Interference Statements and Warnings FCC Interference StatementCustomer Support Contacting Customer SupportTable of Contents List of Figures Campus ApplicationList of Tables Preface About VdslPage Features Chapter Getting to Know the P841CApplication Example Campus Application Back Panel Chapter Hardware ConnectionsFront Panel Front Panel LEDsRear Panel Connectors P841C Rear Panel ConnectorsConnecter Description Chapter Configuring the P841C Additional Installation RequirementsLogin Screen General Command Conventions CommandsSystem Related Commands Command Syntax ConventionsExit Command Help or ? CommandP841C Help Commands Field DescriptionSys Status Command Firmware Upgrade CommandExample Xmodem Firmware Upload Using HyperTerminal Vdsl Default Values Chapter VDSL- Related CommandsVdsl Mode Command IntroductionVdsl Mode Vdsl Active CommandVdsl Uprate and Downrate Commands Vdsl Mode, Frequency Ranges and RatesVdsl Auto Command Vdsl Load CommandUPRATE/DOWN Upstream Rate Downstream Rate Vdsl Reset Command Vdsl Reconnect CommandVdsl Status Command Vdsl Status Counters Vdsl Clear CommandVdsl Debug Command FieldVdsl Monitor Command Vdsl Show Command Vdsl Show Command Field Description ExampleVdsl Autoupg Command Chapter Ethernet-related Commands Enet Status CommandEthernet Status Counters Counter MeaningEnet full duplex Fctrl ltnt onoff Command Enet Clear CommandEnet Speed ltnt speed Command Enet Monitor onoff CommandEthernet Monitor Status Label DescriptionTroubleshooting Data Transmission Chapter TroubleshootingTroubleshooting the Vdsl LED Data TransmissionIntermittent Vdsl LED PasswordConnecting to an Ethernet Switch Data RateTroubleshooting Connecting to an Ethernet Switch Page Europe United Kingdom Power Adapter SpecificationsNorth America Japan Australia and NEW ZealandPage Index 3-2 3-4 ZyXEL Limited Warranty