![]() ![]() ![]() There is not proxy in the middle or anything that could cause any issue, basically any HTTP resource in the local network is not accessible while we use the emulator. ![]() The layout is very simple, we have a Windows server with IP 10.180.1.112 trying to access a HTTP resource on IP 10.180.1.113 (same network) and another web resource in 10.97.173.78 (remote network). What is also very interesting is by example, if I am executing a ping between the two local computers, this continue working, if I try to access the other computer using remote desktop, it works, it is only with this HTTP requests. While we activate the connection emulator communication with the browser (IE and Chrome), packages start failing with "TCP Retransmission", "TCP Zero Window", "TCP Spurious Retransmission", "TCP Out of Order" (all these coming from TCP dump from Wireshark) and at the end the browser fails to open the page, and this only happens with HTTP resources located in the same network, from the same browser, just in another tab we can connect to other web resources located in different networks without any problem. We have other servers outside on a different network with latency of about 20 ms.Now this coloring of packet as spurious re transmission is achieved in Wireshark when it sees a packet with particular sequence number for which it already has seen an ACK. We have multiple servers on the same network/subnet with a lantency under 1 ms What does TCP retransmission mean in Wireshark TCP Retransmission Occurs when the sender retransmits a packet after the expiration of the acknowledgement.Failing that, you may want to ask your question (with more context) on Wiresharks Forum if you want help leveraging Wireshark or Server Fault if you want help tracking down the loss. In the Connection Emulator we only have Transfer Rate of 2Mbps and Latency of by example 30 ms You could use the display filter, which can be used with both Wireshark and PyShark.We are experiencing a very strange behavior while using Connection Emulator.
0 Comments
Leave a Reply. |