CTRON-APPN-MIB :: nwAppnFwdLsCtrInBlus

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCTRON-APPN-MIBnwAppnFwdLsCtrInBlus

nwAppnFwdLsCtrInBlus

Module: CTRON-APPN-MIB

OID (symbolic): CTRON-APPN-MIB::nwAppnFwdLsCtrInBlus

OID (numeric): 1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.3.2.1.1.5

Node type: OBJECT-TYPE

Type: Counter

Access: read-only

Description: Specifies the total number of Basic Link Unit (BLU)s that have been received, during nwAppnFwdLsCtrOperationaltime, on the link for which this entry exists. This includes both information (I-frame) and XID BLUs.

What is nwAppnFwdLsCtrInBlus?

This read-only Counter reports the total number of Basic Link Units received on this specific link during the current operational window, including both information (I-frame) and XID BLUs. Because it counts frames at the link level rather than message units at the SNA level, it gives an admin visibility into raw link-layer activity, including control traffic like XID exchanges. An admin seeing this counter rise steadily even when no application sessions are active would suspect ongoing XID or keepalive activity on the link.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.3.2.1.1.5
snmpwalk -v2c -c public <target> CTRON-APPN-MIB::nwAppnFwdLsCtrInBlus

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.3.2.1.1.5.1
snmpget -v2c -c public <target> CTRON-APPN-MIB::nwAppnFwdLsCtrInBlus.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> nwAppnFwdLsCtrInBlus.1

Start monitoring Cabletron/Enterasys router (IBM SNA/APPN) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRON-APPN-MIB::nwAppnFwdLsCtrInBlus OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys router (IBM SNA/APPN) from a single console.

OID Breakdown

Upper-level ancestors (12 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
1.3.6.1.4.1.52cabletronCabletron-MIB
1.3.6.1.4.1.52.4mibsCTRON-AP3000-MIB
1.3.6.1.4.1.52.4.2ctronExpCTRON-MIB-NAMES
1.3.6.1.4.1.52.4.2.2ctronRouterExpROUTER-OIDS
1.3.6.1.4.1.52.4.2.2.2nwRouterROUTER-OIDS
1.3.6.1.4.1.52.4.2.2.2.3nwRtrProtoSuitesROUTER-OIDS
Numeric OIDNameModule
1.3.6.1.4.1.52.4.2.2.2.3.5nwAppnRouterCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2nwAppnComponentsCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2nwAppnForwardingCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.3nwAppnFwdLinksCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.3.2nwAppnFwdLsCountersCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.3.2.1nwAppnFwdLsCtrTableCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.3.2.1.1nwAppnFwdLsCtrEntryCTRON-APPN-MIB
1.3.6.1.4.1.52.4.2.2.2.3.5.2.2.3.2.1.1.5nwAppnFwdLsCtrInBlusCTRON-APPN-MIB