FOUNDRY-SN-OSPF-GROUP-MIB :: snOspfExternLSACksumSum

MIB Reference — IPNetwork Monitor · Updated September 26, 2026

All MIBs › FOUNDRY-SN-OSPF-GROUP-MIB › snOspfExternLSACksumSum

snOspfExternLSACksumSum

Module: FOUNDRY-SN-OSPF-GROUP-MIB

OID (symbolic): FOUNDRY-SN-OSPF-GROUP-MIB::snOspfExternLSACksumSum

OID (numeric): 1.3.6.1.4.1.1991.1.2.4.1.7

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The 32-bit unsigned 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.

What is snOspfExternLSACksumSum?

A running 32-bit checksum sum over all external LSAs in the link-state database, used as a quick fingerprint to detect whether the external-route portion of the database has changed. Admins can compare this value between two routers to confirm they agree on the set of external routes without downloading the full LSDB.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1991.1.2.4.1.7
snmpwalk -v2c -c public <target> FOUNDRY-SN-OSPF-GROUP-MIB::snOspfExternLSACksumSum

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1991.1.2.4.1.7.1
snmpget -v2c -c public <target> FOUNDRY-SN-OSPF-GROUP-MIB::snOspfExternLSACksumSum.1

Start monitoring Brocade/Foundry FastIron/NetIron router/L3 switch (OSPF extensions) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the FOUNDRY-SN-OSPF-GROUP-MIB::snOspfExternLSACksumSum OID value, configure state conditions and alerts, and monitor any Brocade/Foundry FastIron/NetIron router/L3 switch (OSPF extensions) from a single console.

OID Breakdown

Upper-level ancestors (10 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.1991foundryFOUNDRY-SN-ROOT-MIB
1.3.6.1.4.1.1991.1productsFOUNDRY-SN-ROOT-MIB
1.3.6.1.4.1.1991.1.2routerFOUNDRY-SN-ROOT-MIB
1.3.6.1.4.1.1991.1.2.4snOspfFOUNDRY-SN-ROOT-MIB
Numeric OIDNameModule
1.3.6.1.4.1.1991.1.2.4.1snOspfGenFOUNDRY-SN-OSPF-GROUP-MIB
1.3.6.1.4.1.1991.1.2.4.1.7snOspfExternLSACksumSumFOUNDRY-SN-OSPF-GROUP-MIB