Alcatel-Lucent 7210 SAS Series User Manual

QoS Policies
7210 SAS D, E, K OS Quality of Service Guide Page 71
The value specified for the TAF affects the speed at which the shared buffer average utilization
tracks the instantaneous shared buffer utilization. A low value weights the new shared buffer
average utilization calculation more to the shared buffer instantaneous utilization. When TAF is
zero, the shared buffer average utilization is equal to the instantaneous shared buffer utilization. A
high value weights the new shared buffer average utilization calculation more to the previous
shared buffer average utilization value. The TAF value applies to all high and low priority RED
slopes for ingress and egress buffer pools controlled by the buffer policy.
3
2
3
8 1/8 (0.125) 7/8 (0.875)
4
2
4
16 1/16 (0.0625) 15/16 (0.9375)
5
2
5
32 1/32 (0.03125) 31/32 (0.96875)
6
2
6
64 1/64 (0.015625) 63/64 (0.984375)
7
2
7
128 1/128 (0.0078125) 127/128 (0.9921875)
8
2
8
256 1/256 (0.00390625) 255/256 (0.99609375)
9
2
9
512 1/512 (0.001953125) 511/512 (0.998046875)
10
2
10
1024 1/1024 (0.0009765625) 1023/2024
(0.9990234375)
11
2
11
2048 1/2048
(0.00048828125)
2047/2048
(0.99951171875)
12
2
12
4096 1/4096
(0.000244140625)
4095/4096
(0.999755859375)
13
2
13
8192 1/8192
(0.0001220703125)
8191/8192
(0.9998779296875)
14
2
14
16384 1/16384
(0.00006103515625)
16383/16384
(0.99993896484375)
15
2
15
32768 1/32768
(0.000030517578125)
32767/32768
(0.999969482421875)
TAF
2
TAF
Equates
To
Shared Buffer
Instantaneous
Utilization Portion
Shared Buffer Average
Utilization Portion

Alcatel-Lucent 7210 SAS Series Specifications

General

Brand	Alcatel-Lucent
Model	7210 SAS Series
Category	Switch
Language	English