AC-SYSTEM-MIB :: acSysSRTPPacketMKISize

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsAC-SYSTEM-MIBacSysSRTPPacketMKISize

acSysSRTPPacketMKISize

Module: AC-SYSTEM-MIB

OID (symbolic): AC-SYSTEM-MIB::acSysSRTPPacketMKISize

OID (numeric): 1.3.6.1.4.1.5003.9.10.10.1.7.24.21.1

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-write

Description: Determines the size of the parameter Master Key Identifier (MKI) in SRTP Tx packets.

One of the following values:

0 = MKI Disabled 1 - 4 = size (bytes of MKI). Access: Online. AC INI-Param: SRTPTxPacketMKISize

What is acSysSRTPPacketMKISize?

This OID controls the size of the Master Key Identifier (MKI) field added to SRTP outgoing packets, ranging from 0 bytes (disabled) to 4 bytes. Network engineers configure this when setting up secure voice streaming to ensure encryption keys can be properly identified during transmission. For example, setting it to 2 means each SRTP packet will include a 2-byte key identifier that the receiver uses to select the correct decryption key.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.10.1.7.24.21.1
snmpwalk -v2c -c public <target> AC-SYSTEM-MIB::acSysSRTPPacketMKISize

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.10.1.7.24.21.1.1
snmpget -v2c -c public <target> AC-SYSTEM-MIB::acSysSRTPPacketMKISize.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.5003.9.10.10.1.7.24.21.1.1 i <value>

SNMPv3 example:

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

Start monitoring AudioCodes Mediant-series gateways/media servers with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the AC-SYSTEM-MIB::acSysSRTPPacketMKISize OID value, configure state conditions and alerts, and monitor any AudioCodes Mediant-series gateways/media servers from a single console.

OID Breakdown

Upper-level ancestors (9 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
1.3.6.1.4.1.5003audioCodesAC-ATM-MIB
1.3.6.1.4.1.5003.9acProductsAC-ATM-MIB
1.3.6.1.4.1.5003.9.10acBoardMibsAC-ATM-MIB
Numeric OIDNameModule
1.3.6.1.4.1.5003.9.10.10acSystemAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1acSystemConfigurationAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1.7acSysSecurityAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1.7.24acSysMediaEncriptionAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1.7.24.21acSysSRTPAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1.7.24.21.1acSysSRTPPacketMKISizeAC-SYSTEM-MIB