Subbu

• Oct 2nd, 2006

 

Hi,Network monitor tools vary based on ur specific reqrmnt.Eg: some tools: Ethereal -wireshark.org ping utility nmap traceroute etc

Rajesh

• Oct 22nd, 2006

 

tell me all the answeres

gpreddy

• Nov 3rd, 2006

 

mii-tool is also useful to check the connectivity of interfaces in LAN

Prajakta

• Nov 26th, 2006

 

Testing basic network connectivity => ping ?s /If ping successful => upper layer problem => snoop ?o & snoop ?i to capture and read the events, snoop ?x => to display packet contents, snoop ?v => verboseSNMP traps, Element ManagerUnsuccessful ping => Error Message1) Unknown host ? check the name service => % nslookup, set type = NS [Troubleshooting remote server problem], foo.edu [Directly query the authoritative servers returned by NS query], set type = ANY [] returns all records about a host]2) Network Unreachable => Routing Error, - Check if valid route exits for destination => netstat ?nr | grep ?128.8.0?- If no problem with routing entry, use traceroute- Check if the default route exists=> netstat ?nr | grep def- If default route/routing entry is missing and the system uses static routing => route add - If dynamic routing is used make sure the gated daemon is running => ps ?cat /etc/gated.pid?- check the RIP updated sent and received =>ripquery -1[version] ?n[IP in numeric] ?r[use RIP REQ instead of RIP POLL] 3) No Answer => Problem in lower layers, test on local interface and routing- ifconfig le0 , interface up & running, bad subnet mask [hosts can reach other hosts on local subnet and remote hosts on distant networks, BUT cannot reach hosts on other local subnets], Improper Broadcast address, Bad IP address [If network ID incorrect every ping fails OR host part incorrect]- arp ?a [display arp table] , if there are two hosts with same IP, - arp ?d [delete an entry in arp table], - arp ?s [add an entry in ARP table]- Connection to a LAN is unreliable => netstat ?i , gives Network Interface, MTU, Destination Network, hostname/IP Address, Ipkts, Ierrs, Opkts, Oerrs, Collis, Queue- Ierrs/Oerrs = 100 is high, saturated network or local host is overloaded. Collision rate = Collis/Opkts*100, > 5?% is high, subdivide the network using Ethernet switch- Queue filed increasing, no. of packets that cannot be transmitted, bad NIC/cable

Jai Singh

• Dec 29th, 2006

 

Tools are

1 Ipconfig

2 Ping

3 Tracert

4 Pingpath

aryanone

 Profile Answers by aryanone 

• Jan 26th, 2007

 

Netmon is used to monitor network

fatuchi

• Nov 22nd, 2007

 

Network monitoring tools are different from network tools like ping, tracert  etc.
Network monitoring tools are usually software we need to install and setup in our workstation or server to monitor the performance of the network. Some popular network tools are Cacti, Nagios, Whats Up gold. It also comes up with network tools like ping tracert etc to trouble shoot if ever there are alerts on our network or we need to discover something on our network.

Rahul Bhagare

• Apr 9th, 2013

 

Network Monitoring tools means, If your organization havinG Lease line like TaTa,Reliance etc,You prepared maintenance or monitor your lease line network through tools,

Network Monitoring tools E.G Whats UP Gold etc or Found on Internet.

Deepan chakravarthi

• Jun 18th, 2013

 

Network monitoring tools are like which used to capture the network traces and packets. In that case there are several tools like, wire shark, ethereal etc.,