Chapter 1: Configuration
Configuring quality of service
Page
1-236
Configuring quality of service
Maximum Information Rate (MIR) Parameters
Point-to-multipoint links use the following MIR parameters for bandwidth management:
•
Sustained Uplink Data Rate (kbps)
•
Uplink Burst Allocation (kb)
•
Sustained Downlink Data Rate (kbps)
•
Downlink Burst Allocation (kb)
•
Max Burst Downlink Data Rate (kbps)
•
Max Burst Uplink Data Rate (kbps)
Set each of these parameters per AP or per SM independently.
Note
You can refer below whitepaper for 450 Platform Family Max Burst MIR:
http://www.cambiumnetworks.com/resources/pmp-450-maxburst/
Token Bucket Algorithm
The software uses a
token bucket
algorithm that has the following features:
•
Stores credits (tokens) for the SM to spend on bandwidth for reception or transmission.
•
Drains tokens during reception or transmission.
•
Refills with tokens at the sustained rate set by the network operator.
For each token, the SM can send toward the network in the uplink (or the AP can send toward the SM in
the downlink) an equivalent number of kilobits. Two buckets determine the permitted throughput: one
in the SM for uplink and one in the AP for downlink.
The applicable set of Uplink Burst Allocation and Downlink Burst Allocation parameters determine
the
number
of tokens that can fill each bucket. When the SM transmits (or the AP transmits) a packet,
the equivalent number of tokens is removed from the uplink (or downlink) bucket.
Except when full, the bucket is continuously being refilled with tokens at
rates
that the applicable set of
Sustained Uplink Data Rate and Sustained Downlink Data Rate parameters specify. The bucket often
drains at a rate that is much faster than the sustained data rate but can refill at only the sustained data
rate. Thus, the effects of the allocation and rate parameters on packet delay are as follows:
•
The burst allocation affects how many kilobits are processed before packet delay is imposed.
•
The sustained data rate affects the packet delay that is imposed.
Содержание PMP 450 AP
Страница 51: ...Chapter 1 Configuration Quick link setup Page 1 23 ...
Страница 155: ...Chapter 1 Configuration Configuring security Page 1 127 ...
Страница 160: ...Chapter 1 Configuration Configuring security Page 1 132 Table 41 Security attributes 450 Platform Family BHM ...
Страница 163: ...Chapter 1 Configuration Configuring security Page 1 135 ...
Страница 164: ...Chapter 1 Configuration Configuring security Page 1 136 ...
Страница 169: ...Chapter 1 Configuration Configuring security Page 1 141 Table 43 Security attributes 450 Platform Family BHS ...
Страница 193: ...Chapter 1 Configuration Configuring radio parameters Page 1 165 ...
Страница 194: ...Chapter 1 Configuration Configuring radio parameters Page 1 166 ...
Страница 195: ...Chapter 1 Configuration Configuring radio parameters Page 1 167 ...
Страница 206: ...Chapter 1 Configuration Configuring radio parameters Page 1 178 ...
Страница 210: ...Chapter 1 Configuration Configuring radio parameters Page 1 182 ...
Страница 232: ...Chapter 1 Configuration Configuring radio parameters Page 1 204 Figure 27 Multicast scheduler statistics ...
Страница 305: ...Chapter 1 Configuration Configuring a RADIUS server Page 1 277 Table 89 Security tab attributes ...
Страница 342: ...Chapter 1 Configuration Configuring a RADIUS server Page 1 314 6 Finally press Save Changes and you are ready to use it ...
Страница 408: ...Chapter 3 Operation System information Page 3 8 Table 115 General Status page attributes PMP 450 AP ...
Страница 423: ...Chapter 3 Operation System information Page 3 23 Site Contact Site Location Time Updated and Location Code ...
Страница 636: ...Chapter 5 Troubleshooting Logs Page 5 16 Figure 95 SM Authorization log ...