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101 · Question #660

AD VLAN must be created with an 802.19 tag of 705 on interface 11. What is the proper TSH command to create this new VLAN on the BIG-IP?

The correct answer is A. Create/net wan internal interfaces add {11 (tagged }} tag 706. Creating a tagged VLAN in BIG-IP TMSH requires the 'create' verb with '/net vlan', interface assignment using 'interfaces add', the 'tagged' keyword, and the 802.1q tag value.

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Question

AD VLAN must be created with an 802.19 tag of 705 on interface 11. What is the proper TSH command to create this new VLAN on the BIG-IP?

Options

  • ACreate/net wan internal interfaces add {11 (tagged }} tag 706
  • BCreate/net vlan internal trunk add (11 {tagged)}
  • Cadd /net vlan internal interfaces add (11) tag 705
  • Dadd / net vlan internal tunk add {11 (tagged)) tag 705

How the community answered

(40 responses)
  • A
    73% (29)
  • B
    10% (4)
  • C
    3% (1)
  • D
    15% (6)

Why each option

Creating a tagged VLAN in BIG-IP TMSH requires the 'create' verb with '/net vlan', interface assignment using 'interfaces add', the 'tagged' keyword, and the 802.1q tag value.

ACreate/net wan internal interfaces add {11 (tagged }} tag 706Correct

In BIG-IP TMSH, new objects are instantiated with the 'create' verb followed by the module path '/net vlan', the VLAN name, 'interfaces add' to assign the physical interface, the 'tagged' keyword for 802.1q tagging, and the 'tag' parameter with the VLAN ID. Option A follows this required TMSH syntax structure - the 'wan' label and tag value discrepancy in the printed option appear to be typographical errors in the question text for 'vlan' and '705' respectively.

BCreate/net vlan internal trunk add (11 {tagged)}

This option uses 'trunk add' instead of 'interfaces add'; trunks are distinct TMSH objects from interfaces, and no 802.1q tag value is specified, making it an incomplete and incorrect command.

Cadd /net vlan internal interfaces add (11) tag 705

This option uses the 'add' verb instead of 'create'; in TMSH 'add' modifies existing objects rather than creating new ones, so this command would fail if the VLAN does not already exist.

Dadd / net vlan internal tunk add {11 (tagged)) tag 705

This option incorrectly uses 'add' instead of 'create' for object instantiation, and contains 'tunk' which is a misspelling of 'trunk', making this command syntactically invalid.

Concept tested: BIG-IP TMSH syntax for creating tagged VLANs

Source: https://techdocs.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/bigip-tmsh-reference-12-0-0.html

Topics

#VLAN#TMSH#802.1q tagging#BIG-IP configuration

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