The motherboard of my desktop PC features two Ethernet ports. Each port has its own network controller from Realtek and they are both capable of Gigabit Ethernet. Now, I have this crazy idea to take a short Ethernet category 5e cable and connect it between the two ports, to create a loop. The idea is to test the throughput of both of these ports using the shortest possible cable length.
I have already connected the two ports. One of the connections is identified as Network 6, and I have chosen Home as network type to make it discoverable. The other one got stuck at "identifying". But it's seen as unidentified network now and I have manually changed the type from Public to Home. I was then prompted by Windows Media Player to share media files between these two. Under Network, one is seen as a network computer and the other one shows up as a portable media player. There are three devices with the same name.
I have set one connection to IP 10.1.1.1 and mask 255.255.255.0 and the other one to IP 10.1.1.2 and mask 255.255.255.0. I also added 10.1.1.1 as gateway on the second connection.
After doing this, "Network 7" has now been identified.
On the receiver end:
C:\PCATTCP-0114>pcattcp -r PCAUSA Test TCP Utility V2.01.01.14 (IPv4/IPv6) IP Version : IPv4 Started TCP Receive Test 0... TCP Receive Test Local Host : GIGA ************** Listening...: On TCPv4 0.0.0.0:5001 Accept : TCPv4 0.0.0.0:5001 <- 10.1.1.1:8127 Buffer Size : 8192; Alignment: 16384/0 Receive Mode: Sinking (discarding) Data Statistics : TCPv4 0.0.0.0:5001 <- 10.1.1.1:8127 16777216 bytes in 0.089 real seconds = 184089.89 KB/sec +++ numCalls: 2061; msec/call: 0.044; calls/sec: 23157.303 C:\PCATTCP-0114>
On the transmitter end:
C:\PCATTCP-0114>pcattcp -t 10.1.1.1 PCAUSA Test TCP Utility V2.01.01.14 (IPv4/IPv6) IP Version : IPv4 Started TCP Transmit Test 0... TCP Transmit Test Transmit : TCPv4 0.0.0.0 -> 10.1.1.1:5001 Buffer Size : 8192; Alignment: 16384/0 TCP_NODELAY : DISABLED (0) Connect : Connected to 10.1.1.1:5001 Send Mode : Send Pattern; Number of Buffers: 2048 Statistics : TCPv4 0.0.0.0 -> 10.1.1.1:5001 16777216 bytes in 0.091 real seconds = 180043.96 KB/sec +++ numCalls: 2048; msec/call: 0.045; calls/sec: 22505.495 C:\PCATTCP-0114>