How to recognize different subcards of AR routers

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Solution:
AR1200 series routers and AR2204 support SIC and WSIC subcards but do not support XSIC and EXSIC subcards.
AR2220L and AR2220 support SIC, WSIC, and XSIC subcards but do not support EXSIC subcards.
AR2240 and AR3260 support SIC, WSIC, XSIC, and EXSIC subcards.
Note: SIC: Indicates Smart Interface Card, which is the smallest flexible card with single width and height.
WIC: Indicates Wide SIC, which has double width and single height.
XSIC: Indicates Extended SIC, which has double width and double height.
EXSIC: Indicates Extra-Extended SIC, which has quadruple width and double height.
For details, see the following URL: How does the AR router identify various types of daughter cards

Other related questions:
Add an interface to different VLANs
An access interface cannot be added to different VLANs. Run the port default vlan command to configure a default VLAN. A trunk interface can be added to multiple VLANs by running the port trunk allow-pass vlan command. A hybrid interface can be added to multiple VLANs in untagged or tagged mode by running the port hybrid untagged vlan or port hybrid tagged vlan command.

Difference between the subcard mode and board mode
The subboard mode refers to the current working mode of a subboard. The board mode refers to the current working mode of a board. Different types of boards and subboards support different types of working modes. Many commands are used to switch the subboard mode and board mode. These commands start with set service-mode. To set the subboard mode, you can run the set service-mode card or set service-mode slot card command in the system view. To set the board mode, you can run the set service-mode slot command in the system view.

How to configure a user level on an AR router
Methods of configuring user levels vary with specific scenarios (command lines):
- Configure a user level for a user.
[Huawei] aaa
[Huawei-aaa] local-user user1 privilege level 15  //Set the user level of user 1 to 15.  
-  Configure a user level for all users under a domain.
[Huawei] aaa
[Huawei-aaa] service-scheme sch1
[Huawei-aaa-service-sch1] admin-user privilege level 15  //Set the user level of all users under a domain to 15.  
-  Configure a user level for all users who log in through a page (take the VTY view as an example).
[Huawei] user-interface maximum-vty 15
[Huawei] user-interface vty 0 14
[Huawei-ui-vty0-14] user privilege level 15  //Set the user level in the VTY 0 to VTY 14 views to 15.
The preceding command is used to modify a user level as well. This command overwrites preceding operation results. Therefore, if this command is run multiple times, the last-time operation prevails.
If the user level configured on a page conflicts with the corresponding operation permission of a user, the operation permission prevails.

Configure a user level in web mode.
1.  Choose User Management > User Management.
2.  Click an icon of a desired local user from the user list.
3.  Enter corresponding content.
  a.  The super administrator enters Access level in order to modify the access level of other users.
  b.  To change Access level from the common user to the administrator (common administrator, enterprise administrator, or super administrator), enter New password and confirm Confirm password.

How to set the command level in the specified view
The procedure for setting the command level in the specified view is as follows: Command format: command-privilege level < level > view < view-name > < command-key > To adjust the command level, see the following examples: Example 1: Set the level of the save command to 5. [Huawei] command-privilege level 5 view user save Example 2: Adjust the permission of the configuration file to a lower-level command. [Huawei]command-privilege level 2 view system display current-configuration The system grants different command levels. Each command in each view has a specified level. The administrator can change the command level based on user requirements to enable a lower-level user to use some high-level commands, or raise the command level to improve device security. It is recommended that the default command level be not changed without permission.

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