All MIBs › ME1200-IP-MIB › me1200IpStatisticsGlobalsIpv4InUnknownProtos
me1200IpStatisticsGlobalsIpv4InUnknownProtos
Module: ME1200-IP-MIB
OID (symbolic): ME1200-IP-MIB::me1200IpStatisticsGlobalsIpv4InUnknownProtos
OID (numeric): 1.3.6.1.4.1.9.9.815.1.102.1.4.1.1.8
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-only
Description: The number of locally-addressed IP datagrams received successfully but discarded because of an unknown or unsupported protocol.
When tracking interface statistics, the counter of the interface to which these datagrams were addressed is incremented. This interface might not be the same as the input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at re-initialization of the system, and at other times as indicated by the value of DiscontinuityTime.
What is me1200IpStatisticsGlobalsIpv4InUnknownProtos?
This counter counts datagrams addressed to this device but dropped because the upper-layer protocol number they carried isn't one the device supports, tallied system-wide across every IP interface on the switch for IPv4 traffic. A rising value while everything else looks healthy is usually the first sign of a misconfiguration or an attack, so admins graph it alongside the throughput counters rather than reading it alone.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.815.1.102.1.4.1.1.8 snmpwalk -v2c -c public <target> ME1200-IP-MIB::me1200IpStatisticsGlobalsIpv4InUnknownProtos
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.815.1.102.1.4.1.1.8.1 snmpget -v2c -c public <target> ME1200-IP-MIB::me1200IpStatisticsGlobalsIpv4InUnknownProtos.1
Start monitoring Cisco ME1200 Metro Ethernet access switch (IP routing capability/config) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ME1200-IP-MIB::me1200IpStatisticsGlobalsIpv4InUnknownProtos OID value, configure state conditions and alerts, and monitor any Cisco ME1200 Metro Ethernet access switch (IP routing capability/config) from a single console.
OID Breakdown
Upper-level ancestors (10 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| 1.3.6.1.4.1.9.9.815 | ciscoME1200MIB | CISCOME1200-MIB |
| 1.3.6.1.4.1.9.9.815.1 | me1200SwitchMgmt | CISCOME1200-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.815.1.102 | me1200IpMIB | ME1200-IP-MIB |
| 1.3.6.1.4.1.9.9.815.1.102.1 | me1200IpMIBObjects | ME1200-IP-MIB |
| 1.3.6.1.4.1.9.9.815.1.102.1.4 | me1200IpStatistics | ME1200-IP-MIB |
| 1.3.6.1.4.1.9.9.815.1.102.1.4.1 | me1200IpStatisticsGlobals | ME1200-IP-MIB |
| 1.3.6.1.4.1.9.9.815.1.102.1.4.1.1 | me1200IpStatisticsGlobalsIpv4 | ME1200-IP-MIB |
| 1.3.6.1.4.1.9.9.815.1.102.1.4.1.1.8 | me1200IpStatisticsGlobalsIpv4InUnknownProtos | ME1200-IP-MIB |