MIB-II Counters

TCP (OID 1.3.6.1.2.1.6):
tcpRtoAlgorithm
tcpRtoMin
tcpRtoMax
tcpMaxConn
tcpActiveOpens
tcpPassiveOpens
tcpAttemptFails
tcpEstabResets
tcpCurrEstab
tcpInSegs
tcpOutSegs
tcpRetransSegs
tcpInErrs
tcpOutRsts
tcpHCInSegs
tcpHCOutSegs
UDP (OID 1.3.6.1.2.1.7):
udpInDatagrams
udpNoPorts
udpInErrors
udpOutDatagrams
udpHCInDatagrams
udpHCOutDatagrams
IP (OID 1.3.6.1.2.1.4):
ipForwarding
ipDefaultTTL
ipInReceives
ipInHdrErrors
ipInAddrErrors
ipForwDatagrams
ipInUnknownProtos
ipInDiscards
ipInDelivers
ipOutRequests
ipOutDiscards
ipOutNoRoutes
ipReasmTimeout
ipReasmReqds
ipReasmOKs
ipReasmFails
ipFragCreate
ICMP (OID 1.3.6.1.2.1.5):
icmpInMsgs
icmpInErrors
icmpInDestUnreachs
icmpInTimeExcds
icmpInParmProbs
icmpInSrcQuenchs
icmpInRedirects
icmpInEchos
icmpInEchoReps
icmpInTimestamps
icmpInTimestampReps
icmpInAddrMasks
icmpInAddrMaskReps
icmpOutMsgs
icmpOutErrors
icmpOutDestUnreachs
icmpOutTimeExcds
icmpOutParmProbs
icmpOutSrcQuenchs
icmpOutRedirects
icmpOutEchos
icmpOutEchoReps
icmpOutTimestamps
icmpOutTimestampReps
icmpOutAddrMasks
icmpOutAddrMaskReps
IF (OID 1.3.6.1.2.1.2.2):
ifInOctets
ifInUcastPkts
ifInDiscards
ifInErrors
ifOutOctets
ifOutUcastPkts
ifOutErrors
ifInMulticastPkts
ifInBroadcastPkts
ifOutMulticastPkts
ifOutBroadcastPkts