HP MT40 Průvodce řešením problémů stáhnout pdf (Strana 8)

HP Velocity FAQ and Troubleshooting Guide 8

HP Velocity FAQ General

HP Velocity boosts application QoE in a high-latency environment. By actively adapting TCP,

HP Velocity automatically calibrates congestion control parameters for each TCP flow based

on the conditions present in the network.

Does HP Velocity introduce latency?

No, HP Velocity provides zero-latency loss protection.

What is HP Velocity’s impact on available bandwidth?

The bandwidth control mode defines how network flows are protected from network loss.

Higher protection modes protect against a greater network loss but also require more

bandwidth.

HP Velocity provides the following bandwidth control modes:

• Dynamic: Configures HP Velocity to dynamically maximize acceleration while optimizing

bandwidth usage.

• Low: Configures HP Velocity to cap the estimated protection overhead at or below 27%.

This mode is best suited to very constrained environments.

• Medium: Configures HP Velocity to cap the estimated protection overhead at or below 40%.

This mode is best suited to moderately constrained environments.

• High: Configures HP Velocity to maximize performance in environments where bandwidth is

not constrained and the network loss is known to be high. This mode is best suited to high-

loss networks.

What is an HP Velocity-protected flow?

A protected flow is formed between two HP Velocity endpoints in Protect mode. In this mode,

HP Velocity continuously monitors end-to-end network conditions to activate and adjust

HP Velocity optimizers, such as zero-latency loss protection, WiFi acceleration, TCP flow

control, and latency mitigation.

NOTE: Protection overhead bandwidth refers to the amount of additional

bandwidth required for each encoding mode HP Velocity uses to protect

against packet loss. For more information, see the “Packet loss protection”

section of the HP Velocity Technology Overview document.

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HP MT40 Průvodce řešením problémů Strana 8