Avaya 2 manual Detecting incorrect IP addresses arp, Displaying network statistics netstat

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Contents

When traffic on the LAN is very heavy, some packets might be lost because the server cannot keep up with the flow.

To better understand the results, you might want to seek support from your Avaya support representative when running the LAN utilities.

Detecting incorrect IP addresses (arp)

The arp command provides information about Ethernet/IP address translation. You can use the command to detect systems on the LAN that are configured with an incorrect IP address. The table that follows identifies the different options and functions for the arp command.

Command

Function

 

 

arp -a [Unix[kmem]]

Display all of the current ARP entries by reading the table

 

from the file kmem (default /dev/kmem), based on the kernel

 

file Unix (default /kernel/Unix )

arp -dhostname

Delete an entry for the host called hostname.

 

Note:

 

This option can be used only by the super-user.

arp -shostname

Create an ARP entry for the host called hostname with the

ether_address [temp]

Ethernet address ether_address.

[pub] [trail]

 

arp -ffilename

Read the file named filename and set multiple entries in the

 

ARP tables

Displaying network statistics (netstat)

Use the netstat command to display statistics about each network interface and socket and statistics about the network routing table. Use the netstat command with the attributes shown in the table that follows.

Attribute

Function

-a

Display the state of all sockets and all routing table entries.

-faddress_family

Limit the statistics or address control block reports to those of the

 

specified family. (The address family can be inet for the AF_INET

 

family or Unix for the AF_Unix family.)

-g

Display the multicast group memberships for all interfaces.

-i

Display the state of the interfaces that are used for TCP/IP traffic.

-m

Display the STREAMS statistics.

-n

Display the network addresses as numbers.

-p

Display the address resolution tables.

Issue 1.0 April 2006 41

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Contents Avaya Interactive Response Issue 1.0 April 2006Documentation disclaimer TCP/IP Facilities Troubleshooting overviewPage Contents Contents Public switched telephone network PstnAvaya IR R2.0 Troubleshooting Requirements for successful operationsConnections and communications SwitchesVoice response applications Incorrect system administration Possible malfunctions and errorsSystem and LAN capacity Hardware malfunctions and failuresConnection and communication problems Application errorsCircuit-based configurations Packet-based configurationsSpeech Identifying possible causes of problemsProblems Effects Actions LAN Troubleshooting procedure Reviewing the Display Equipment screen Using IR system eventsGathering information on a problem Monitoring live operations Using Sun diagnostic testsChecking system history State MeaningUsing commands Troubleshooting based on observationsCall-handling problems Investigating operations problemsVoice system not answering ― Enter display card all and press EnterAll calls dropped Calls droppedCalls dropped at initial prompt Voipcallforcecleared Calls not transferred properlyNo Dtmf tones Wink protocol Typical fax problems Fax problemsPoor audio quality on VoIP calls Touchtone not interpreted correctlyInterpreting negative fax values Locating fax errorsHost interaction problems Reviewing fax repair proceduresHost sessions recover repeatedly Fax text or file not foundSpeech delayed or cut off Speech and TTS problemsNo response for application with host interface Calls to host droppedAll ports Broken on speech server Cannot configure speech recognitionSpeech resource bad or non-configured Speech recognition rejecting many responses Speech response delayedSpeech server not running Speech not playing Speech recognition not workingChecking for errors Mrcp problemsChecking the server connection Mrcp connections and protocolsParameter Description Default Setting Mrcp configuration fileTrue ExampleErratic availability of Mrcp speech resources Mrcp servers are frequently out of serviceServer Name Base Servers Port Numb ASRAutomatic Speech Recognition fails Text-to-Speech output is not heardR2.0 Returning TTS resource state to Inserv Text-to-Speech problemsSelect Administrative Tools Select Component Services Unix commands failing or disk errors System process problemsExecute Unix command failed On the Tree tab, select Services LocalChecking Oracle object size limits Database problemsChecking Jdbc operations Word about the Tomcat server log Checking communicationsChecking LAN communications Localhostlog.2004-05-07.txtTroubleshooting speech server disconnections Typical causes of LAN problemsResources for LAN troubleshooting Troubleshooting database server disconnections Troubleshooting persistent server problems Troubleshooting intermittent LAN problemsMonitoring Ethernet packets Pinging server connectionsTracing LAN activities Specify the IP time to live for multicast packetsDisplaying network statistics netstat Detecting incorrect IP addresses arpDisplaying packet route traceroute Checking hardware Resolving a problem when the monitor does not displayChecking cable connections Sun Blade 150 cable connectionsContents Label Function and troubleshooting considerations Sun Fire 280R cable connections Label Function and Troubleshooting ConsiderationsFC-AL Testing platform hardwareChecking card and channel states Checking NMS card configurationCommands Functions Restoring Manoos cards and channels Restoring Foos cards and channels Restoring Netoos cards and channelsInspecting the IR system platform Restoring Broken NMS and VoIP cardsChecking card administration Removing and restoring cards Displaying data on VoIP cards Gathering data on card operationsDisplaying data on NMS cards Checking for hard disk drive failures Performing root cause failure analysisReplacing a failed hard disk drive Running the metastat command Spare Okay C1t1d0s1 Removing a failed hard disk driveActivating disk mirroring for a new hard disk drive Enter mirroradmin detachDisabling disk mirroring Restoring the system if both hard disk drives failContents Issue 1.0 April 2006 Page Index Index
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