SNMP MCS oddity

Products ePMP
1

2.6 firmware, ePTP 40MHz channel, MCS15 up & down, polling the master:

snmpwalk -v2c -cpublic 10.13.9.2 .1.3.6.1.4.1.17713.21.1.2


CAMBIUM-PMP80211-MIB::cambiumSTAConnectedRFFrequency.0 5210
CAMBIUM-PMP80211-MIB::cambiumSTAConnectedRFBandwidth.0 2
CAMBIUM-PMP80211-MIB::cambiumSTADLRSSI.0 -57
CAMBIUM-PMP80211-MIB::cambiumSTAConductedTXPower.0 20
CAMBIUM-PMP80211-MIB::cambiumSTAUplinkMCSMode.0 15
CAMBIUM-PMP80211-MIB::cambiumSTADownlinkMCSMode.0 -22
CAMBIUM-PMP80211-MIB::cambiumSTAConnectedAP.0 Scanning...
CAMBIUM-PMP80211-MIB::cambiumAPNumberOfConnectedSTA.0 1
CAMBIUM-PMP80211-MIB::cambiumSTADistanceKm.0 0.000
CAMBIUM-PMP80211-MIB::cambiumSTADistanceMil.0 0.000
CAMBIUM-PMP80211-MIB::cambiumSTADLSNR.0 34
CAMBIUM-PMP80211-MIB::cambiumConnectedAPMACAddress.0 Not Associated
CAMBIUM-PMP80211-MIB::connectedSTAMAC.1 00:04:56:c6:f6:b8
CAMBIUM-PMP80211-MIB::connectedSTAAID.1 1
CAMBIUM-PMP80211-MIB::connectedSTAChannel.1 5220
CAMBIUM-PMP80211-MIB::connectedSTAULRSSI.1 -56
CAMBIUM-PMP80211-MIB::connectedSTADLRSSI.1 0
CAMBIUM-PMP80211-MIB::connectedSTAULSNR.1 35
CAMBIUM-PMP80211-MIB::connectedSTADLSNR.1 0
CAMBIUM-PMP80211-MIB::connectedSTAULMCS.1 15
CAMBIUM-PMP80211-MIB::connectedSTADLMCS.1 15

...

Since when is '-22' a valid MCS Mode??

j

2

Hi newkrik,

That OID is applicable only for SM.

cambiumSTADownlinkMCSMode OBJECT-TYPE
		SYNTAX	   Integer32 (1..7|9..15)
		MAX-ACCESS read-only 
		STATUS	   current
		DESCRIPTION
		"DL MCS Mode: 
			1 for MCS1, 
			2 for MCS2, 
			3 for MCS3, 
			4 for MCS4, 
			5 for MCS5, 
			6 for MCS6, 
			7 for MCS7, 
			9 for MCS9, 
			10 for MCS10, 
			11 for MCS11, 
			12 for MCS12, 
			13 for MCS13, 
			14 for MCS14, 
			15 for MCS15
		Device Allocation: SM"
		::= { cambiumRFStatus 7 }

 Thank you.

3

Strange that it should have any value at all, then, but I understand.  Thanks.

j

4

Yes, I agree with you.

I guess next release will have fix for that.

Thank you.