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101 · Question #283

Which two of these statements about OneConnect are true? (Choose two.)

The correct answer is B. It aggregates multiple client connections into a single server connection E. It decreases the CPU load on pool members. OneConnect is an F5 BIG-IP connection multiplexing feature that pools server-side TCP connections, reducing the overhead pool members incur from repeated connection setup and teardown.

Section 2: F5 Solutions and Technology

Question

Which two of these statements about OneConnect are true? (Choose two.)

Options

  • AIt decreases the CPU load on LTM
  • BIt aggregates multiple client connections into a single server connection
  • CIt decreases the amount of traffic between multiple clients and LTM
  • DIt requires SNAT to be configured
  • EIt decreases the CPU load on pool members

How the community answered

(45 responses)
  • A
    4% (2)
  • B
    93% (42)
  • D
    2% (1)

Why each option

OneConnect is an F5 BIG-IP connection multiplexing feature that pools server-side TCP connections, reducing the overhead pool members incur from repeated connection setup and teardown.

AIt decreases the CPU load on LTM

OneConnect shifts TCP session management work onto the BIG-IP LTM itself, so LTM CPU usage increases rather than decreases as it tracks and manages the multiplexed connection pool.

BIt aggregates multiple client connections into a single server connectionCorrect

OneConnect multiplexes multiple client-side HTTP requests over a smaller set of persistent TCP connections on the server side, so many client connections are effectively funneled through a single or few server-side connections. This connection reuse eliminates the need for each client to independently establish and close a TCP session with the pool member.

CIt decreases the amount of traffic between multiple clients and LTM

OneConnect operates on the server-side segment of the traffic path between LTM and pool members - it does not alter or reduce the volume of traffic exchanged between clients and LTM.

DIt requires SNAT to be configured

OneConnect has no dependency on SNAT; SNAT is an independent address-translation feature and is not a prerequisite for enabling or using OneConnect profiles.

EIt decreases the CPU load on pool membersCorrect

Because pool members no longer need to perform a full TCP handshake and teardown for every individual client request, the CPU cycles spent on connection management on those servers are substantially reduced. The BIG-IP absorbs that overhead on behalf of the pool members, leaving the servers free to process application logic.

Concept tested: F5 BIG-IP OneConnect TCP connection multiplexing

Source: https://techdocs.f5.com/en-us/bigip-17-0-0/big-ip-local-traffic-management-getting-started-guide/understanding-oneconnect.html

Topics

#OneConnect#connection pooling#server-side optimization#CPU offload

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