Cisco 2950 - Catalyst Switch Configuration Manual page 269

Chapter 13 Configuring LRE
Note Consult the regulations for connecting to the public switched telephone network (PSTN) in your area.
Note Use the rates and distances in
cable that you use, how it is bundled, and the interference and noise on the LRE link can affect the actual
LRE link performance. Contact Cisco Systems for information about limitations and optimization of
LRE link performance. The downstream and upstream rates in the table are slightly less than the gross
data rates shown by the show controllers lre profile names privileged EXEC command output.
Table 13-1 LRE Profiles for the Catalyst 2950ST-8 LRE and the 2950ST-24 LRE Switches
Profile Name
LRE-15
LRE-10 (default)
LRE-5
LRE-998-15-4
LRE-997-10-4
LRE-15LL
LRE-10LL
LRE-5LL
LRE-10-5
LRE-10-3
LRE-10-1
LRE-8
LRE-7
LRE-15-5
LRE-15-3
LRE-15-1
LRE-4
LRE-3
LRE-2
LRE-4-1
LRE-4-1-LL
78-11380-10
Table 13-1
LRE Link
Downstream Rate (Mbps)
16.667
12.500
6.250
16.667
12.500
16.667
12.500
6.250
12.500
12.500
12.500
9.375
8.333
16.667
16.667
16.667
4.167
3.125
2.083
4.167
4.167
and Table 13-2 only as guidelines. Factors such as the type of
LRE Link Upstream Rate
(Mbps)
18.750
12.500
6.250
4.688
4.688
18.750
12.500
6.250
6.250
3.125
1.563
9.375
8.333
6.250
3.125
1.563
4.167
3.125
2.083
1.563
1.563
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
Understanding LRE Features
Theoretical Theoretical
Minimum SNR Minimum SNR
Downstream Upstream
31 25
25 19
16 13
31 25
31 25
31 25
25 19
16 13
25 13
25 19
25 13
25 25
19 19
31 13
31 19
31 13
13 13
13 13
13 13
19 13
19 13
13-3