A customer is discussing QoS requirements with a network consultant. The customer has specified that end-to-end path verification is a requirement. Which QoS architecture is most appropriate for the…

The correct answer is D. IntServ model with RSVP to support the traffic flows. Integrated Services (IntServ) with RSVP (Resource Reservation Protocol) is the only QoS architecture that provides end-to-end path verification and resource reservation. RSVP signals bandwidth requirements hop-by-hop along the entire path from source to destination, and each…

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Question

A customer is discussing QoS requirements with a network consultant. The customer has specified that end-to-end path verification is a requirement. Which QoS architecture is most appropriate for the requested design?

Options

Amarking traffic at the access layer with DSCP to support the traffic flow
Bmarking traffic at the access layer with CoS to support the traffic flow
CRSTP mdoel with PHB to support the traffic flows
DIntServ model with RSVP to support the traffic flows

How the community answered

(59 responses)

A
17% (10)
B
7% (4)
C
3% (2)
D
73% (43)

Explanation

Integrated Services (IntServ) with RSVP (Resource Reservation Protocol) is the only QoS architecture that provides end-to-end path verification and resource reservation. RSVP signals bandwidth requirements hop-by-hop along the entire path from source to destination, and each device must admit (or reject) the reservation - this constitutes true end-to-end path verification and guaranteed bandwidth. DiffServ (DSCP/CoS marking) is a scalable best-effort classification model with no path verification or admission control. RSTP is a spanning tree protocol unrelated to QoS.

Topics

#IntServ#RSVP#QoS architecture#end-to-end path reservation

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