Below is the performance detection data interface data commonly used in MIB2
1) The input output byte (ifinoctets, ifoutocetes) reflects the channel utilization. Low indicates that the channel is space, highly indicated potential or has a bottleneck.
2) The input output packet loss rate reflects the degree of congestion at the interface. High indicates that the service should be re-adjusted.
Input packet loss rate = ifindiscards / ifinocTes
Output packet loss rate = ifoutdiscards / ifoutock
3) Input output error rate reflects the transmission quality of the backbone network channel. High indicates that the channel is not normal and needs to be adjusted.
Input error rate = ifinerrors / ifinocTes
Output error rate = ifouterrors / ifoutoctets
4) Output queue Length ifoutqlen speed is higher than ifoutoctets increase speed description may occur.
IP layer data
1) Enter the output packet loss rate. If it is higher, it may be insufficient or other reasons.
Input packet loss = ipindiscards / ipinreceives
Output packet loss = iPoutDiscards / iPoutReceives
2) IP input and output error rate. The reasons why the input value is higher is: IP header error, invalid address, input discard. The reason why the output value is high is: the output is discarded, and the output is not routed.
IP input error rate = (ipindiscards ipinhdrerrors ipinaddrerror) / ipinReceives
IP output error rate = (iPoutDiscards iPoutnorouts) / iPoutRequests
3) IP forwarding rate. If the forwarding rate is not equal to the IP input rate, the forwarding packet rate cannot meet the requirements.
IP forwarding rate = (ipforwddatagram (y) -ipforwddatagram (x)) / (y-x) / (y-x) / (y-x)
IP forwarding rate = (iPinReceives (Y) -ipinReceives (x)) / (y-x)
4) IP routing item loss number (iPrOroutingDiscards).
