SNMP mapping for 40MHZ & 80 MHZ channels

MVP
Q:

How are the SNMP results derived for 40 MHz  & 80 MHZ channels ?

A:

The values obtained via SNMP for 40MHz channels is calculated based on the following logic:

a) if the channel is represented as x+ (eg. 36+), the number seen in SNMP is 256 + x (256 + 36 = 292).

b) If the channel is represented as y- (eg. 40-), the number seen in SNMP is 768 + y (768 + 40 = 808).

 40 MHz channel Representation in SNMP 40 MHz channel Representation in SNMP 36+ 292 40- 808 40+ 296 44- 812 44+ 300 48- 816 48+ 304 52- 820 52+ 308 56- 824 56+ 312 60- 828 60+ 316 64- 832 64+ 320 104- 872 100+ 356 108- 876 104+ 360 112- 880 108+ 364 116- 884 112+ 368 120- 888 116+ 372 124- 892 120+ 376 128- 896 124+ 380 132- 900 128+ 384 136- 904 132+ 388 140- 908 136+ 392 144- 912 140+ 396 149- 917 144+ 400 153- 921 149+ 405 157- 925 153+ 409 161- 929 157+ 413

If it’s an 80 MHz channel, then 1024 needs to be added to the channel to get the number seen in SNMP.

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Last update:
‎10-03-2017 07:44 AM
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