Which traffic-conditioning mechanism buffers packets during congestion, instead of dropping them?
A. shaping
B. policing
C. packet fragmentation and interleaving
D. class-selector PHB
E. PHB
Which traffic-conditioning mechanism buffers packets during congestion, instead of dropping them?
CIPTV1 book page 313
“Shaping, on the other hand, involves regulating excessive traffic rates by delaying (buffering) traffic.”
I agree (A)
Shaping implies the existence of a queue and of sufficient memory to buffer delayed packets, while policing does not.
In other words, a PHB refers to the packet scheduling, queueing, policing, or shaping behavior of a node on any given packet belonging to a BA, as configured by a service level agreement (SLA) or a policy map.
Traffic Shaping (Regulating Packet Flow)–Traffic shaping “shapes” the flow of traffic by reducing outbound flow traffic to avoid congestion. Traffic shaping constrains traffic to a particular bit rate using a token bucket mechanism.
checking any example of configuration :
Class bronze
Traffic Shaping
Average Rate Traffic Shaping
CIR 320000 (bps) Max. Buffers Limit 1000 (Packets)
Weighted Fair Queueing
Bandwidth 15 (%) Max Threshold 64 (packets)
I can see the option of buffers limit.
I think A is correct