All MIBs › CISCOSB-IpRouter › rlOspfNetLnkChecksum
rlOspfNetLnkChecksum
Module: CISCOSB-IpRouter
OID (symbolic): CISCOSB-IpRouter::rlOspfNetLnkChecksum
OID (numeric): 1.3.6.1.4.1.9.6.1.101.26.14.5.1.7
Node type: OBJECT-TYPE
Type: Integer32
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.
What is rlOspfNetLnkChecksum?
This read-only Integer32 holds the Fletcher checksum computed over the Network-LSA's contents, excluding the age field so the checksum survives normal age increments. Routers validate this checksum before trusting an LSA, so a mismatch flags database corruption rather than a normal protocol event. For example, an admin comparing this checksum for the same Network-LSA across two neighboring routers can spot a corrupted copy that would otherwise silently distort routing decisions on that segment.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.26.14.5.1.7 snmpwalk -v2c -c public <target> CISCOSB-IpRouter::rlOspfNetLnkChecksum
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.26.14.5.1.7.1 snmpget -v2c -c public <target> CISCOSB-IpRouter::rlOspfNetLnkChecksum.1
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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 |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.6 | otherEnterprises | CISCO-SMI |
| 1.3.6.1.4.1.9.6.1 | ciscoSB | CISCO-SMI |
| 1.3.6.1.4.1.9.6.1.101 | switch001 | CISCOSB-MIB |
| 1.3.6.1.4.1.9.6.1.101.26 | ipSpec | CISCOSB-IP |
| 1.3.6.1.4.1.9.6.1.101.26.14 | rlOspf | CISCOSB-IP |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.6.1.101.26.14.5 | rlOspfNetLnkTable | CISCOSB-IpRouter |
| 1.3.6.1.4.1.9.6.1.101.26.14.5.1 | rlOspfNetLnkEntry | CISCOSB-IpRouter |
| 1.3.6.1.4.1.9.6.1.101.26.14.5.1.7 | rlOspfNetLnkChecksum | CISCOSB-IpRouter |