Ethernet Measurements

This feature is used to provide network interface troubleshooting capability on the GUI between LS and a SUT.

Additional details :

When ETH Stats are activated and reported within a test case (select the test case in the Reports tab to view the ETH Stats), the statistics (how registers are read) are at the ethernet port level. All activity on that port is reported, regardless of which test case is responsible for the traffic. For example if there are two test cases that use the same ethernet port but only one of them activates ETH stats, the numbers reported reflect the traffic from both test cases. This is true even if the test cases are in different test sessions.
If two test cases activate ETH stats for the same ethernet port then both test cases will have the same numbers reported in the ETH measurements tab. Each test case will have its own ETH stats tab.
The statistics reported, particularly packets transmitted and packets received, may not match up with other measurements reported by Landslide (e.g. L3 counters). This is because there are some packets that are not counted by software - such as ARP. A received ARP is counted by the hardware (ETH stats) as a received packet but it is not necessarily reported by any of the software counters (test case measurements). In a network in which there is a lot of asynchronous traffic (lots of ARP or router advertisements for example) the difference between the ETH stats reported and other counters reported could be non-trivial.
For Virtual systems, the Ethernet statistics reported are initialized to zero when the test server is recycled. They are NOT initialized before a test is run. Any activity on that ethernet port after a recycle and prior to the test being executed is included in the numbers reported. It is suggested that the test server be recycled immediately prior to the execution of a test with Eth stats activated. For example, assume that a test server is recycled and two tests are run that generate a total of 1000 packets being transmitted. If a third test, with ETH stats enabled, is then executed, the ETH stats reported will include the 1000 packets transmitted by the previous 2 tests - even if those tests did not have ETH stats activated.
For "Physical" systems, the Ethernet statistics reported are initialized to zero when the test case is started as long as the ethernet port is not already being used by another test case.

Configuration :

Test case Network Devices

Interface Advanced tab - Select ETH Stats - See Advanced Test Node Settings

Depending on the type of NIC card you have, you'll see one of the two sets of measurements.

Either:

Packets Transmitted — The number of packets successfully transmitted.
Packets Received — The number of packets successfully received.
Received Packets Dropped — The number of received packets dropped.
Received Packets with Error — The number of received packets with an error.
Invalid Q Dropped Received Packets — The number of frames that are dropped due to invalid queues or queues not being enabled when it is received.
Pause Frame Dropped Received Packets — The number of received Pause frames that were dropped.
Received Packets with Transport Checksum Error — The number of received packets with a TCP or UDP checksum error.
Received Packets with IP Checksum Error — The number of received packets with a IP checksum error.
Q Dropped Received Packets — The number of received packets dropped by the queue.

Or

Packets Transmitted — The number of packets successfully transmitted.
Packets Received — The number of packets successfully received.
Packets Failed Transmission — The number of failed transmitted packets.
Received Packets Dropped — The number of received packets dropped.
Received Packets with Error — The number of received packets with an error.

NOTEs:

The difference in the measurements provided is due to the different Hardware (HW) registers provided by the NIC card.
If the NIC card does not support the HW registers, the following warning message will be output to the real time log when the test is executed:

***** ETH Stats not available for ethx *****

HW Stats are currently supported on the NIC-27, NIC-31, NIC-32 and NIC-66 cards.
Eth Stats are only available when viewing the results for a specific test case. They are not available when using the Summary View.
When performing Pass/Fail Criteria tests and tests are reassigned (imported) to test servers that run on different NIC cards, the tests will fail to produce Ethernet Measurements. You must rebuild the Pass/Fail Criteria and uncheck/recheck the ETH Stats on the Advanced Test Node Settings of the new test server and rerun the test.