CISCO-SLB-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-SLB-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2008-05-15

Category: Cisco Devices

Description: Manages server load balancing (SLB) on Cisco devices, including virtual server configuration and Dynamic Feedback Protocol (DFP) for obtaining server health information.

IPNetwork Monitor uses several OIDs from this MIB in network discovery and polling the applicable devices. Start monitoring CISCO-SLB-MIB with a free 30-day trial of IPNetwork Monitor.

What Is CISCO-SLB-MIB?

CISCO-SLB-MIB is a Cisco proprietary MIB for managing Server Load Balancing (SLB) functionality on Cisco IOS-based load balancer products, such as those running the Cisco IOS SLB feature. It exposes configuration for virtual servers and server farms along with statistics gathered via the Dynamic Feedback Protocol (DFP), which lets the load balancer obtain live health and load information from real servers, and via the Server/Application State Protocol (SASP). The MIB is heavily used for monitoring hardware/software operational status of the load-balancing function itself: counters for switching packets (assisted vs. unassisted), connection creation/establishment/destruction rates, and per-entity statistics reveal whether the load balancer and its backend server pool are healthy and handling traffic correctly. It builds on standard SNMP conventions and works alongside DFP/SASP protocol data exchanged with server-side agents rather than depending on another MIB module directly. It is typically deployed on Cisco Content Switching Modules or IOS SLB-capable routers/switches in data center front-ends distributing traffic across server farms. Because Cisco SLB deployments often sit at the center of data-center traffic distribution, this MIB is a common target for continuous performance dashboards tracking connection and packet-switching counters.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-SLB-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • Cisco IOS SLB-capable router/switch
  • Cisco Content Switching Module

Monitoring Examples

An administrator would poll slbStatsTable/slbStatsTableEntry, indexed by slbEntity, watching slbStatsCreatedConnections versus slbStatsDestroyedConnections and slbStatsEstablishedConnections to spot connection churn or a server farm under stbEntity slbServerFarms that isn't accepting new connections. A sudden spike in slbStatsUnassistedSwitchingPkts relative to slbStatsAssistedSwitchingPkts (or their high-capacity HC counterparts) could indicate the fast-path switching optimization has stopped working, signaling a performance degradation on the load balancer.

What Can Be Monitored

  • created/established/destroyed connections
  • assisted vs. unassisted switching packet counts
  • server farm health status
  • DFP server feedback status
  • per-entity load balancing statistics
Imported Objects

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From CISCO-TC

CiscoIpProtocol
CiscoPort

From ENTITY-MIB

entPhysicalParentRelPosOBJECT-TYPE

From INET-ADDRESS-MIB

InetAddress
InetAddressPrefixLength
InetAddressType
InetPortNumber

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Gauge32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
RowStatus
StorageType
TEXTUAL-CONVENTION
TimeInterval
TruthValue
OIDs

RFC description

Cisco Server Load Balancing MIB for monitoring and managing SLB virtual servers, real servers, and load balancing policies.

Start monitoring Cisco IOS SLB-capable router/switch / Content Switching Module with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download CISCO-SLB-MIB