beautypg.com

Appendix c, Packet rate limiting on the at-cm2k0s line card, Rate limit input vs. hardware configured values – Allied Telesis AT-S99 User Manual

Page 297

background image

297

Appendix C

Packet Rate Limiting on the AT-CM2K0S
Line Card

Because of the component design on the AT-CM2K0S Line Card, the
actual performance of packet rate limiting on the two ports may not
correspond with the value you specify. The graph in Figure 131 shows the
correlation between the permitted ingress and egress rate limit values and
the actual average rate limits. For example, the actual packet rate limit for
any value between 150,000 and 250,000 is 285,714 packets. To set
packet rate limiting, refer to “Configuring the Port Parameters on AT-CM
Line Cards” on page 139.

Figure 131. Rate Limit Input vs. Hardware Configured Values

Table 37 lists the values in table format. When you see multiple values in
the “Specified Rate Limit (Kbps)” column and “Same” in the “Average Rate
Limit (Kbps)” column, the average rate limit value equals the specified rate
limit. When you see multiple values in the “Specified Rate Limit (Kbps)”
column and one value in the “Average Rate Limit (Kbps)” column, all of the
specified values result in the same average rate limit.

0

50000

100000

150000

200000

250000

300000

0

50000

100000

150000

200000

250000

300000

Value You Specified (Kbps)

A

v

e

rag

e R

a

te

L

im

it

R

e

su

lt

(

K

bp

s

)

This manual is related to the following products: