All MIBs › CISCOSB-IpRouter › rlOspfSumLnkSequence
rlOspfSumLnkSequence
Module: CISCOSB-IpRouter
OID (symbolic): CISCOSB-IpRouter::rlOspfSumLnkSequence
OID (numeric): 1.3.6.1.4.1.9.6.1.101.26.14.6.1.4
Node type: OBJECT-TYPE
Type: Integer32
Access: read-only
Description: The sequence number field is a signed 32-bit integer. It is used to detect old and duplicate link state advertisements. The space of sequence numbers is linearly ordered. The larger the sequence number the more recent the advertisement.
What is rlOspfSumLnkSequence?
This read-only Integer32 is the signed sequence number of the Summary-LSA, used by routers to tell old copies from newer ones since larger numbers indicate more recent advertisements. An admin can watch this value to confirm the originating ABR is actively refreshing the summary rather than leaving a stale route installed. For example, if this sequence number stops incrementing after a subnet is removed from an area, it suggests the ABR failed to reflood an updated summary reflecting that removal.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.26.14.6.1.4 snmpwalk -v2c -c public <target> CISCOSB-IpRouter::rlOspfSumLnkSequence
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.26.14.6.1.4.1 snmpget -v2c -c public <target> CISCOSB-IpRouter::rlOspfSumLnkSequence.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 |
|---|---|---|
| 1.3.6.1.4.1.9.6.1.101.26.14.6 | rlOspfSumLnkTable | CISCOSB-IpRouter |
| 1.3.6.1.4.1.9.6.1.101.26.14.6.1 | rlOspfSumLnkEntry | CISCOSB-IpRouter |
| 1.3.6.1.4.1.9.6.1.101.26.14.6.1.4 | rlOspfSumLnkSequence | CISCOSB-IpRouter |