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13-17
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
78-11380-10
Chapter 13 Configuring LRE
Configuring LRE Ports
LRE-15-1 16.667 256 31 33 35 39
LRE-998-15-4 16.667 256 31 33 35 39
LRE-997-10-4 12.5 256 31 33 35 39
LRE-2 2.08 4 13 15 17 20
LRE-3 3.13 4 13 15 17 20
LRE-4 4.17 4 13 15 17 20
Table 13-7 SNR Requirements for Upstream Rates for the Catalyst 2950ST-8 LRE and the Catalyst 2950ST-24 LRE
Switches
Profile
Gross Data
Rate QAM
Theoretical
Minimum SNR Low Noise SNR
Medium Noise
SNR
High Noise
SNR
LRE-4-1 1.56 4 13 15 17 20
LRE-7 8.333 16 19 21 23 26
LRE-8 9.375 64 25 27 30 34
LRE-5 6.25 4 13 15 17 20
LRE-10 12.5 16 19 21 23 26
LRE-1518.756425273034
LRE-10-5 6.25 4 13 15 17 20
LRE-10-33.1251619212326
LRE-10-1 1.56 4 13 15 17 20
LRE-15-5 6.250 4 13 15 17 20
LRE-15-33.1251619212326
LRE-15-1 1.563 4 13 15 17 20
LRE-998-15-4 4.688 64 25 27 29 32
LRE-997-10-4 4.688 64 25 27 29 32
LRE-2 2.08 4 13 15 17 20
LRE-3 3.13 4 13 15 17 20
LRE-4 4.17 4 13 15 17 20
Table 13-6 SNR Requirements for Downstream Rates for the Catalyst 2950ST-8 LRE and the Catalyst 2950ST-24 LRE
Switches (continued)
Profile
Gross Data
Rate
Quadrature
Amplitude
Modulation
(QAM)
Theoretical
Minimum SNR Low Noise SNR
Medium Noise
SNR
High Noise
SNR