Loopback plug to test an ethernet port
Each time a packet is sent, it is selected from a different starting point of the data buffer, so that any two consecutively transmitted packets will not be the same. If an error occurs (for example, packet mismatch or timeout), an error message indicating the type of error, its probable cause(s), and recommended action(s) is displayed on the SunVTS console.The data sent out is generated by a random number generator, and put into a data buffer. The test generates and sends out the desired number of packets (a tunable parameter) and expects to receive the same number of packets through the loopback interface, external or internal. For the purpose of this test, a packet is defined as an Ethernet header followed by the Ethernet data payload (refer to the IEEE 802.3z standard). The netlbtest uses DLPI RAW mode to talk to the device driver. The netlbtest runs in loopback (external/internal) mode. These devices include eri (the Ethernet device in the RIO chip) and ge (Gigabit Ethernet), ce (GigaSwift Ethernet), dmfe (10/100 Mbps Ethernet), and vca (Sun Crypto Accelerator 4000).
#Loopback plug to test an ethernet port drivers
It provides functional test coverage of the devices which have device drivers that support the Ethernet loopback test. * Once it is enabled it will show up the Link speed under the Link status in the Network | Interface.The netlbtest replaces the gemtest previously included in SunVTS. To enable the ports Port shield groups | click on configure on the particular interface and enable the port enable option. Under Network | Port shield groups | port status is indicated in the picture. Iii) If one of the port's LED is active then the LED indication is bad. Ii) If the activity of both the LED's are not active,the ports are damaged. I) If the activity of both the LED's are active,both the ports are working. Use a cross over cable to check if the port is working or faulty,connect a cross over cable to one of the unused interface and the other end to the port which has issue. The interface which shows as "No link" should not be port shielded with any of the other interface,it should be either unassigned or assigned static IP address. Step 2: Try to connect the computers using different cables and also try to connect different machines directly to the Sonicwall without any switch in between the SonicWall and the computers. Iii) If Link speed shows up as "No link " follow the next step. Ii) If the LED light is active check the status of the link in Network | Interface | Link Status shows up the Link speed. I) Connect a computer directly to the interface and check if the activity of LED light is active. Step 4: Check if the port has been enabled. Step 2: Try to connect using different cables and try connecting different device to the interface. Step 1: Check the activity of Link LED's of the corresponding interface. Status of the interface shows up as "No Link" even though it is connected physically to any device. Copy URL The link has been copied to clipboard.Content Filtering Client Control access to unwanted and unsecure web content.Capture Client Stop advanced threats and rollback the damage caused by malware.Cloud Firewall (NS v) Next-generation firewall capabilities in the cloud.Cloud App Security Visibility and security for Cloud Apps.Email Security Protect against today’s advanced email threats.
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