All MIBs › IPMCAST-MIB › ipMcastRouteTtlDropOctets
ipMcastRouteTtlDropOctets
Module: IPMCAST-MIB
OID (symbolic): IPMCAST-MIB::ipMcastRouteTtlDropOctets
OID (numeric): 1.3.6.1.2.1.168.1.5.1.20
Node type: OBJECT-TYPE
Type: Counter64
Access: read-only
Description: The number of octets contained in IP datagrams that this router has received from these sources and addressed to this multicast group address, which were dropped because the TTL (IPv4) or Hop Limit (IPv6) was decremented to zero, or to a value less than ipMcastInterfaceTtl for all next hops.
Discontinuities in this monotonically increasing value occur at re-initialization of the management system. Discontinuities can also occur as a result of routes being removed and replaced, which can be detected by observing the value of ipMcastRouteTimeStamp.
What is ipMcastRouteTtlDropOctets?
A running total of octets this router dropped for this source/group because the packet's TTL or Hop Limit fell to zero or below the interface's configured TTL threshold -- a rising count suggests ipMcastInterfaceTtl may be set too aggressively.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.168.1.5.1.20 snmpwalk -v2c -c public <target> IPMCAST-MIB::ipMcastRouteTtlDropOctets
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.168.1.5.1.20.1 snmpget -v2c -c public <target> IPMCAST-MIB::ipMcastRouteTtlDropOctets.1
Start monitoring Vendor-neutral IETF standard, RFC 5132 (IPv4/IPv6 multicast-capable router) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IPMCAST-MIB::ipMcastRouteTtlDropOctets OID value, configure state conditions and alerts, and monitor any Vendor-neutral IETF standard, RFC 5132 (IPv4/IPv6 multicast-capable router) from a single console.
OID Breakdown
Upper-level ancestors (6 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 |
| 1.3.6.1.2 | mgmt | APERTUS-NPG-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.168 | ipMcastMIB | IPMCAST-MIB |
| 1.3.6.1.2.1.168.1 | ipMcast | IPMCAST-MIB |
| 1.3.6.1.2.1.168.1.5 | ipMcastRouteTable | IPMCAST-MIB |
| 1.3.6.1.2.1.168.1.5.1 | ipMcastRouteEntry | IPMCAST-MIB |
| 1.3.6.1.2.1.168.1.5.1.20 | ipMcastRouteTtlDropOctets | IPMCAST-MIB |