| OID | Object | Syntax | Max Access | Description | Implemented Specifications | 
|---|---|---|---|---|---|
| 1.3.6.1.2.1.14.1.7 | ospfExternLsaCksumSum | Integer32 | read-only | The 32-bit sum of the LS checksums of the external link state advertisements contained in the link state database. This sum can be used to determine if there has been a change in a router's link state database and to compare the link state database of two routers. The value should be treated as unsigned when comparing two sums of checksums. | This object is implemented as defined in the corresponding MIB files. |