Quality of Service Guide QoS and QoS Policies
Edition: 01 3HE 11014 AAAC TQZZA 117
The access egress ATM scheduling behavior is shown in Table 16. For UBR traffic,
the scheduler weight of the lowest possible value is always used, which is the value
of 1. Only cell-based operations are carried out.
<1536 kb/s 6
<1920 kb/s 7
≥1920 kb/s 8
Table 15 Scheduler Weight Values (WRR) based on MIR for the 4-port
OC3/STM1 Clear Channel Adapter Card
Range OC3 ATM Range DS3 ATM Weight
0 to 1 Mb/s 0 to 512 kb/s 1
>1 Mb/s to 4 Mb/s >512 kb/s to 1 Mb/s 2
>4 Mb/s to 8 Mb/s >1 Mb/s to 2 Mb/s 3
>8 Mb/s to 16 Mb/s >2 Mb/s to 4 Mb/s 4
>16 Mb/s to 32 Mb/s >4 Mb/s to 8 Mb/s 5
>32 Mb/s to 50 Mb/s >8 Mb/s to 16 Mb/s 6
>50 Mb/s to 100 Mb/s >16 Mb/s to 32 Mb/s 7
>100 Mb/s >32 Mb/s 8
Table 14 Scheduler Weight Values (WRR) based on MIR for the T1/E1
ASAP Adapter Cards and 2-port OC3/STM1 Channelized Adapter
Card (Continued)
Minimum Information Rate Scheduler Weight
Table 16 ATM Scheduling and Relative Priorities
Flow type Transmission Rate Priority
Shaped CBR Limited to configured PIR Strict priority over all other traffic
Shaped rt-VBR Limited to configured SIR, but with bursts
up to PIR within MBS
Strict priority over all but shaped CBR
Shaped nrt-VBR Limited to configured SIR, but with bursts
up to PIR within MBS
Strict priority over all scheduled traffic
To Next Page
Loading...
