Observer GigaFlow

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Observer GigaFlow Documentation

Documentation > Reference Manual for GigaFlow > Reports > First Packet Response

First Packet Response

Located at Reports > First Packet Response.

First Packet Response (FPR) is a useful diagnostic tool, allowing you to compare the difference between the first packet time-stamp of a request flow and the first packet time-stamp of the corresponding response flow from a server. By comparing the FPR of a transaction with historical data, you can troubleshoot unusual application performance.

Monitored Servers

On loading, this page displays any First Packet Response information available for Monitored Servers.

Figure: The First Packet Response reports page

To set up a monitored server, go to Configuration > Server Subnets.

The displayed information includes:

  • Device IP address.
  • Server subnet.
  • Port number.
  • Number of clients.
  • Number of flows.
  • Time and date last seen.
  • Basic statistics.

Monitored Infrastructure Devices/Servers/Ports

On loading, this page displays any First Packet Response information available for Monitored Servers.

Figure: The First Packet Response reports page

To set up a monitored server, go to Configuration > Server Subnets.

The displayed information includes:

  • Device IP address.
  • Server subnet.
  • Port number.
  • Number monitored clients.
  • Number of flows, maximum number of clients.
  • Maximum number of flows per minute.
  • Minimum response time.
  • Average response time.

Ticker Table


Click the Ticker check box next to a device to enable a ticker in the table below with live response times in milliseconds.