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201 · Question #213

A BIG-IP Administrator needs to have a BIG-IP linked to two upstream switches for resilience of the external network. The network engineer who is going to configure the switch instructs the BIG- IP…

The correct answer is D. A Trunk containing an interface connected to each switch. To provide external network resilience by binding interfaces with LACP to two upstream switches, the administrator should configure a Trunk.

Section 1: Perform Initial Setup

Question

A BIG-IP Administrator needs to have a BIG-IP linked to two upstream switches for resilience of the external network. The network engineer who is going to configure the switch instructs the BIG- IP Administrator to configure interface binding with LACP. Which configuration should the administrator use?

Options

  • AA virtual server with an LACP profile and the switches' management IPs as pool members.
  • BA virtual server with an LACP profile and the interfaces connected to the switches as pool members.
  • CA Trunk listing the allowed VLAN IDs and MAC addresses configured on the switches.
  • DA Trunk containing an interface connected to each switch.

How the community answered

(36 responses)
  • A
    3% (1)
  • B
    3% (1)
  • C
    8% (3)
  • D
    86% (31)

Why each option

To provide external network resilience by binding interfaces with LACP to two upstream switches, the administrator should configure a Trunk.

AA virtual server with an LACP profile and the switches' management IPs as pool members.

Virtual servers are used for directing client traffic to backend servers, not for aggregating physical network interfaces using LACP.

BA virtual server with an LACP profile and the interfaces connected to the switches as pool members.

Virtual servers manage application traffic, and individual physical interfaces are not configured as pool members in this context for LACP functionality.

CA Trunk listing the allowed VLAN IDs and MAC addresses configured on the switches.

While Trunks involve VLANs, specifying MAC addresses configured on the switches is not the primary or complete method for configuring an LACP Trunk on the BIG-IP side; the core is grouping interfaces.

DA Trunk containing an interface connected to each switch.Correct

Trunks on BIG-IP systems are used to aggregate multiple physical interfaces into a single logical link, supporting LACP for negotiating with connected switches to provide redundancy and increased bandwidth.

Concept tested: F5 BIG-IP LACP Trunk configuration

Source: https://techdocs.f5.com/en-us/bigip-15-1-0/big-ip-system-administration/big-ip-system-trunks.html

Topics

#LACP#Trunk configuration#network resilience#interface binding

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