7-1 Network Interface Card
- 정은진
- 헌규임
- JuneL (Unlicensed)
It monitors the physical network devices mounted in the system.
To obtain a network address, the network device resource should operate properly and it is also necessary to periodically monitor them.
To differentiate individual network devices in a system where multiple network cards are installed, we use the name registered in the MAC address or device driver, or the name registered in the network connection registration information.
A network card agent uses the name (FriendlyName) registered in the network connection registration information.
This name is a unique name that is familiar to a general user. It can be easily modified for user's convenience. The adapter name appearing in the 'Network Connection' screen, or the information displayed after 'Ethernet Adapter' when you run the 'ipconfig' command in the command prompt is the name used to identify a network card. The network interface card(NIC) resource defines this name by using the AdapterName attribute.
Table of Contents
Do not use space or special characters when designating a network card name.
Adding
Add the network card resource to a group.
When you add the network card resource to a group, it will be immediately activated and displayed as online.
- Select a group → right click → 'Add Resource'.
- Select 'NIC' from Resource Type lists and click 'Next' button.
- Enter resource name and select NIC.
[Figure] Add network card wizard view Click on the Add Setting button to enter the ping timeout and the test address list.
Additional setting can be selected as an option. You don't need to enter it.
Multiple test addresses are separated by ",".
[Figure] Additional Settings of NIC resource- Click the 'Finish' button to add the network card resource.
You can immediately check the result in the management web console.
Deleting
Select the resource. -> Right click with the mouse. -> Delete the resource.
The deleted resource will immediately disappear from the management web console.
Status
The following table explains the status switching of the MCCS resource caused by a user's command and the status.
The command assumes that it is generated by a user.
Network card agent: Manages the physical network adapters.
| Status | Agent Command | Description | Note |
|---|---|---|---|
Online A network card is operating properly. | Offline | A network card resource cannot go offline. | |
| Monitoring | It refers to the AdapterName attributes and checks the link status of the network device. A network card resource is deemed to be normal only if it a network device is connected. | ||
Offline It is impossible to know the status of network card. | Online | A network card resource cannot go online. | |
| Monitoring | It refers to the AdapterName attributes and checks the link status of the network device. A network card resource is deemed to be normal only if it a network device is connected. | ||
Trouble A device is not configured or a link is cut off. So, all the ICMP tests to the testing address failed. | Online | A network card resource cannot go online. | |
| Offline | A network card resource cannot go offline. |
|
*Network card resource characteristics
MCCS cannot use the online/offline commands to a network device. It is because a network is managed by the OS as soon as it is installed in the H/W.
Due to the characteristics, a network card's resource type action attribute is set to none. Also, its NoAction value is set to true.
The attribute value cannot be used to start or terminate the resource. It is operable at all nodes at the same time but it only monitors the status. It is called a monitoring only resource.
Attribute
Show the unique attribute of network card resource.
Attribute | Description | Type | Default | Edit | Note |
AdapterName | It is the ethernet adapter name registered in network interface card. | STRING | O | ||
PingTimeout | It is the time limit for ping test. | INTEGER | 2 sec | O | |
TestAddressList | It is the list of network access test address. If the ICMP test succeeds in at least one address, network connection state is considered normal. When there is more than one address, they are separated by ",". | IP ADDRESS | O |
Attribute value of ArgList arguments are the values that are added resources and the value can be changed or viewed through ’Specified Attribute’ list on the detailed information panel.
For more information about resource type attribute, please refer to “6. Resource Type” for this document.