Performance Problems
The RTT column of the Performance section of the PathPing output might identify a performance problem. This column shows round-trip time (RTT) in milliseconds, which is the two-way latency of communications with that particular device. Although all networks will show gradually increasing latency as the hop count increases, a large latency increase from one hop to the next identifies performance problems.
Performance problems might also be evident from a high percentage shown in the Lost/Sent = Pct column. This column measures packet loss. Although packet loss in the single digits generally does not indicate a problem that would cause performance or connectivity problems, packet loss of greater than 30 percent generally indicates that the network node is experiencing problems.
Note If a network device shows packet loss of 100 percent but packets are processed at later hops, the network device has been configured to not answer PathPing queries, which does not necessarily indicate a problem.
In this tutorial:
- Troubleshooting Network Issues
- Tools for Troubleshooting
- Table-1 Network Troubleshooting Tools
- Arp
- How to Identify a Problem with the ARP Cacher
- How to Clear the ARP Cache
- Event Viewer
- IPConfig
- Nblookup
- Nbtstat
- Net
- How to View Shared Folders on the Local Computer
- How to View Shared Folders on Another Computer
- Netstat
- Network Monitor
- Nslookup
- Verifying that the Default DNS Server Resolves Correctly
- Verifying that a Specific DNS Server Resolves Correctly
- Verifying Specific Types of Addresses
- Using TCP for DNS Lookups
- PathPing
- PathPing Output
- Routing Loops
- Performance Problems
- Possible Connectivity Issues
- No Connectivity Issues
- Performance Monitor
- Data Collector Sets
- Windows Resource Monitor
- Ping
- PortQry
- Identifying the TCP Port for a Service
- Windows 7 Testing Service Connectivity
- Determining Available Remote Management Protocols
- Why PortQry Is Great
- Route
- Task Manager
- TCPView
- Telnet Client
- Testing Service Connectivity
- Test TCP
- Windows Network Diagnostics
- The Process of Troubleshooting Network Problems
- How to Troubleshoot Network Connectivity Problems
- How to Troubleshoot Application Connectivity Problems
- Default Port Assignments for Common Services and Tasks
- How to Troubleshoot Name Resolution Problems
- How to Verify Connectivity to a DNS Server
- How to Use the Hosts File
- How to Troubleshoot Performance Problems and Intermittent Connectivity Issues
- How to Troubleshoot Joining or Logging on to a Domain
- How to Verify Requirements for Joining a Domain
- How to Troubleshoot Network Discovery
- How to Troubleshoot File and Printer Sharing
- How to Troubleshoot File and Printer Sharing from the Client
- How to Troubleshoot File and Printer Sharing from the Server
- How to Troubleshoot Wireless Networks
- Network Diagnostics
- How to Troubleshoot Firewall Problems