Which Citrix ADC tool is recommended to diagnose resets observed when a website behind ADC is load-balanced?

Which Citrix ADC tool is recommended to diagnose resets observed when a website behind ADC is load-balanced?

• A. Take a packet trace with nstrace and analyze with Wireshark
• B. View the newnslog from the CLI to look for packet resets
• C. Use nslog to look for packet resets on the ADC
• D. Look in the event viewer for packet resets from the ADC

Answer: (A)

When you’re seeing resets for traffic flowing through a Citrix ADC in a load-balanced setup, you need visibility into the actual network packets. Taking a packet trace on the ADC with nstrace and then analyzing the capture in Wireshark gives you the precise information about TCP resets: who sent the RST, at what point in the handshake or data exchange the reset occurred, and the sequence/ack details that reveal whether the reset came from the client side, the ADC, or the backend server. This packet-level view lets you pinpoint whether the reset is due to a server closing the connection, a client aborting, misconfigured timeouts, or an ADC-side issue, which logs alone can’t reliably show. Options that rely on textual logs or event viewers don’t provide the same depth of visibility into the actual TCP session and reset behavior. Logs can indicate that a reset happened, but not the exact packet sequence or source, which is essential for diagnosing resets in a load-balanced environment. That’s why capturing and analyzing the actual traffic with nstrace and Wireshark is the best approach.

When you’re seeing resets for traffic flowing through a Citrix ADC in a load-balanced setup, you need visibility into the actual network packets. Taking a packet trace on the ADC with nstrace and then analyzing the capture in Wireshark gives you the precise information about TCP resets: who sent the RST, at what point in the handshake or data exchange the reset occurred, and the sequence/ack details that reveal whether the reset came from the client side, the ADC, or the backend server. This packet-level view lets you pinpoint whether the reset is due to a server closing the connection, a client aborting, misconfigured timeouts, or an ADC-side issue, which logs alone can’t reliably show.

Options that rely on textual logs or event viewers don’t provide the same depth of visibility into the actual TCP session and reset behavior. Logs can indicate that a reset happened, but not the exact packet sequence or source, which is essential for diagnosing resets in a load-balanced environment. That’s why capturing and analyzing the actual traffic with nstrace and Wireshark is the best approach.