nerdexam
F5

101 · Question #91

Which is a potential result when a trunk is configured on a BIG-IP?

The correct answer is B. Packets flowing to the VLAN could arrive on any of the interfaces in the trunk. A BIG-IP trunk aggregates multiple physical interfaces into a single logical interface, distributing traffic so that packets for an associated VLAN can arrive on any member interface of the trunk.

Section 2: F5 Solutions and Technology

Question

Which is a potential result when a trunk is configured on a BIG-IP?

Options

  • ANo additional trunks can be configuration since each BIG-IP is limited to one trunk
  • BPackets flowing to the VLAN could arrive on any of the interfaces in the trunk
  • CSince any VLANs associated with the trunk are necessarily associated with multiple interfaces,
  • DVLAN failsafe is not available for any VLAN associated with any trunks.

How the community answered

(56 responses)
  • A
    2% (1)
  • B
    88% (49)
  • C
    7% (4)
  • D
    4% (2)

Why each option

A BIG-IP trunk aggregates multiple physical interfaces into a single logical interface, distributing traffic so that packets for an associated VLAN can arrive on any member interface of the trunk.

ANo additional trunks can be configuration since each BIG-IP is limited to one trunk

BIG-IP supports multiple trunks per device; there is no hardware or software restriction limiting a system to a single trunk.

BPackets flowing to the VLAN could arrive on any of the interfaces in the trunkCorrect

A trunk (Link Aggregation Group) spreads inbound and outbound traffic across all its member interfaces using a hashing algorithm, meaning any individual packet destined for a VLAN associated with that trunk can arrive on any one of the trunk's physical interfaces.

CSince any VLANs associated with the trunk are necessarily associated with multiple interfaces,

This statement is incomplete and misleading; VLANs are associated with the trunk as a logical unit, and the trunk manages interface membership internally without requiring each interface to be individually listed per VLAN.

DVLAN failsafe is not available for any VLAN associated with any trunks.

VLAN failsafe is fully available for VLANs associated with trunks; trunk configuration does not disable or restrict failsafe functionality.

Concept tested: BIG-IP trunk link aggregation and traffic distribution

Source: https://techdocs.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos-routing-administration-11-5-0/4.html

Topics

#trunk#VLAN#interface aggregation#network configuration

Community Discussion

No community discussion yet for this question.

Sign up to join the discussion
Full 101 Practice