User guide
Managing Your Canopy Network March 2005
Through Software Release 6.1
Issue 1 Page 307 of 425
Canopy System User Guide
When BAM is enabled in the AP Configuration page, bandwidth management is
expanded to apply uniquely specified sustained data rate and burst allocation values to
each registered SM. Thus, you can define differently priced tiers of subscriber service.
Designing Tiered Subscriber Service Levels
Examples of levels of service that vary by bandwidth capability are provided in Table 53.
NOTE:
The services that Table 53 correlate to service levels are best cases.
These do not account for
◦ transient limitations such as congestion on the Internet.
◦ network configuration limitations such as server-side bandwidth
capability.
Table 53: Examples of SM tiers
Rate
Basic
Service
Enhanced
Service
Premium
Service
Sustained Uplink and Sustained
Downlink Rates
128 kbps 512 kbps No restrictions
Uplink Burst and Downlink Burst
Sizes
40,000 kb
(5 MB)
80,000 kb
(10 MB)
No restrictions
Initial burst speed 2.5 Mbps 2.5 Mbps 2.5 Mbps
Time to download medium
complexity web page
1 sec 1 sec 1 sec
Time to download 5 MB 16 sec 16 sec 16 sec
Time to download 10 MB 336 sec 32 sec 32 sec
Time to download 25 MB
1296 sec (over
20 min)
272 sec 80 sec
23.2.2 Authentication Manager Capability
BAM software allows you to set per AP a requirement that each SM registering to the AP
must authenticate. When AP Authentication Server (APAS) is enabled in the AP, any SM
that attempts to register to the AP is denied service if authentication fails, such as (but
not limited to) when no BAM server is operating or when the SM is not listed in the
database.
If a BAM server drops out of service where no redundant BAM server exists
◦ an SM that attempts to register is denied service.
◦ an SM that is already in session remains in session
In a typical Canopy network, some SMs re-register daily (when subscribers power down
the SMs, for example), and others do not re-register in a period of several weeks.
Whenever an authentication attempt fails, the SM locks out of any other attempt to
register itself to the same AP for the next 15 minutes.