Find the host with the largest network traffic
When the network is congested, we need to analyze the cause of the congestion. Generally, we first analyze the Host with the largest traffic. We use the Host Table function of Sniffer, sort the network traffic generated by all computers on the network by the number of packets sent. The result is shown in.
Host Table analyzes the traffic from each Host
From Figure 3-14, we can see that the host with the IP address 10.22.0.25 sends the most data packets, far exceeding other hosts, and the corresponding traffic is also the largest, the host sends a large amount of data to the network, which is an important cause of network congestion.
From the local area network switch to the secondary networkVroThe network traffic of the link has beenMonitoringThe local network interface of the second-level network router is 10 M. We set the image port on the LAN switch) to mirror the link traffic to a MB network interface, use the Sniffer protocol analyzer to access the Image Port and monitor and analyze the network traffic of the link to determine whether there is any traffic exception.
Network Traffic Analysis Process
1. Overall Network Traffic Monitoring
We first use the History Samples historical sampling function of Sniffer Pro to monitor the network utilization on the image link. The following results are obtained:
Link to utilization
The link actually transmits numbers per second.
From the above monitoring results, we can see that in every 40 seconds, the network traffic in this link will peak for 15 seconds, and it is very regular, the peak traffic is about 20 Mb/s. Considering that the interface of the same vro with the vswitch is 10 Mb/s and the full duplex is 20 Mb/s, we can see that the network utilization rate is 100%!
Through Sniffer monitoring and analysis of the link traffic, we can intuitively see that the link has a periodic network congestion, and this cycle is very consistent with the packet loss time pattern of the network, we can be very certain that the abnormal peak traffic is an important cause of a large number of packet loss in the network.
The process of finding the host with the highest network traffic caused by the packet loss caused by the routing ring is described. I hope you can understand it. For more information, see:
Network Packet Loss Caused by configuring routing rings in Static Routing 1)
Network Packet Loss Caused by configuring routing rings for static routes 3)
Network Packet Loss Caused by configuring routing rings in Static Routing 4)
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