HP 5300 Informacje Techniczne Pobierz pdf (Strona 255)

100

101

Port Traffic Controls

Rate-Limiting

Ports A3-A5 are configured with a

rate limit of 60 %. (Ports A1 and A2 are

not configured for rate-limiting.)

The outbound port priority

queues 1 - 4 for ports A1-A2 are

configured with the indicated

Guaranteed Minimum

Bandwidth percentages.

Figure 13-4. Example of Rate-Limit Settings Listed in the “show config” Output

Operating Notes for Rate-Limiting

■ Rate-Limiting is available on all types of HP ProCurve Switch Series

5300XL ports and at all port speeds configurable for these devices.

■ The configured rate limit on a port reflects the permitted forwarding rate

from the port to the switch backplane, and is visible as the average rate

of the outbound traffic originating from the rate-limited port. Also, rate-

limiting reflects the available percentage of a port’s entire inbound band-

width. The rate of inbound flow for traffic of a given priority and the rate

of flow from a rate-limited port to a particular queue of an outbound port

are not measures of the actual rate limit enforced on a port.

■ Rate-Limiting operates on a per-port basis, regardless of traffic priority.

Configuring rate-limiting on a port where other features affect inbound

port queue behavior (such as flow control) can result in the port not

achieving its configured rate-limiting maximum. For example, in some

situations with flow control configured on a rate-limited port, there can

be enough “backpressure” to hold high-priority inbound traffic from the

upstream device or application to a rate that is lower than the configured

rate limit. In this case, the inbound traffic flow does not reach the

13-13

1 2 ... 250 251 252 253 254 255 256 257 258 259 260 ... 441 442

Komentarze do niniejszej Instrukcji

Brak uwag

HP 5300 Informacje Techniczne Strona 255

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Oprogramowanie HP 5300