All MIBs › RFC7777-MIB › wfOspfLsdbChecksum
wfOspfLsdbChecksum
Module: RFC7777-MIB
OID (symbolic): RFC7777-MIB::wfOspfLsdbChecksum
OID (numeric): 1.3.6.1.4.1.18.3.5.3.2.3.3.1.7
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: 'This field is the checksum of the complete contents of the advertisement, excepting the age field. The age field is excepted so that an advertisement's age can be incremented without updating the checksum. The checksum used is the same that is used for ISO connectionless datagrams; it is commonly referred to as the Fletcher checksum.' REFERENCE 'OSPF Version 2, Section 12.1.7 LS checksum'
What is wfOspfLsdbChecksum?
This read-only value is the Fletcher checksum computed over the full contents of a Link State Advertisement, excluding its age field so the age can be incremented without recomputing the checksum. A mismatch here (surfaced by the OSPF implementation) indicates a corrupted or tampered LSA.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.18.3.5.3.2.3.3.1.7 snmpwalk -v2c -c public <target> RFC7777-MIB::wfOspfLsdbChecksum
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.18.3.5.3.2.3.3.1.7.1 snmpget -v2c -c public <target> RFC7777-MIB::wfOspfLsdbChecksum.1
Start monitoring legacy Wellfleet/Bay Networks routers (OSPF configuration, filename coincides with unrelated later RFC) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the RFC7777-MIB::wfOspfLsdbChecksum OID value, configure state conditions and alerts, and monitor any legacy Wellfleet/Bay Networks routers (OSPF configuration, filename coincides with unrelated later RFC) from a single console.
OID Breakdown
Upper-level ancestors (12 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 |
| 1.3.6.1.4.1.18 | wellfleet | CMU-MIB |
| 1.3.6.1.4.1.18.3 | wfSwSeries7 | Wellfleet-COMMON-MIB |
| 1.3.6.1.4.1.18.3.5 | wfApplication | Wellfleet-COMMON-MIB |
| 1.3.6.1.4.1.18.3.5.3 | wfInternet | Wellfleet-COMMON-MIB |
| 1.3.6.1.4.1.18.3.5.3.2 | wfIpRouting | Wellfleet-COMMON-MIB |
| 1.3.6.1.4.1.18.3.5.3.2.3 | wfOspfGroup | Wellfleet-COMMON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.18.3.5.3.2.3.3 | wfOspfLsdbTable | RFC7777-MIB |
| 1.3.6.1.4.1.18.3.5.3.2.3.3.1 | wfOspfLsdbEntry | RFC7777-MIB |
| 1.3.6.1.4.1.18.3.5.3.2.3.3.1.7 | wfOspfLsdbChecksum | RFC7777-MIB |