The PC has two Gigabit Ethernet ports. They function as two separate network adapters. I'm trying to do a simple loopback test between the two. I've tried TTCP and IPERF. They're giving me hard time because I'm using the same physical PC.
Using pcattcp…
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 <- 10.1.1.1:33904
Buffer Size : 8192; Alignment: 16384/0
Receive Mode: Sinking (discarding) Data
Statistics : TCPv4 0.0.0.0:5001 <- 10.1.1.1:33904
16777216 bytes in 0.076 real seconds = 215578.95 KB/sec +++
numCalls: 2052; msec/call: 0.038; calls/sec: 27000.000
C:\PCATTCP-0114>
On the transmitter end:
C:\PCATTCP-0114>PCATTCP.exe -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 0.075 real seconds = 218453.33 KB/sec +++
numCalls: 2048; msec/call: 0.037; calls/sec: 27306.667
C:\PCATTCP-0114>
It's responding alright. But why does it say 0.0.0.0? Is it passing through only one of the network adapters?
I want 10.1.1.1 to be the server (receiver) and 10.1.1.2 to be the client (transmitter). These are the IP addresses assigned manually to each network adapter. How do I specify these addresses in TTCP?
There is also the IPERF tool which has the -B option. Unfortunately I've been only able to use this option to bind the server to the 10.1.1.1 address. I was unable to bind the client to the 10.1.1.2 address. I might be doing it wrong. Can the -B option be used for both the server as well as the client side? What does the syntax look like for the client?
Update
As you can see by the answer I posted I have figured out how to do this using IPERF. I have looked at ways to use TTCP to do the same thing and I have found the -a option, but when I tried to use it I received a Winsock Error on the client side.
On server side:
C:\PCATTCP-0114>pcattcp -r -a 10.1.1.1
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 10.1.1.1:5001
On client side:
C:\PCATTCP-0114>pcattcp -t 10.1.1.1 -a 10.1.1.2
PCAUSA Test TCP Utility V2.01.01.14 (IPv4/IPv6)
IP Version : IPv4
Started TCP Transmit Test 0...
TCP Transmit Test
Transmit : TCPv4 10.1.1.2 -> 10.1.1.2:5001
Buffer Size : 8192; Alignment: 16384/0
TCP_NODELAY : DISABLED (0)
*** Winsock Error: connect Failed; Error: 10061 (0x0000274D)
C:\PCATTCP-0114>
It looks like it's trying to connect to itself?
Best Answer
I reviewed the help for IPERF and I think I got it now.
On server side:
On client side:
Let me know if you see any errors here.
I would still like to know if this is possible, and how to do it using TTCP? If you know the answer to this, please post it.