ZYXEL-SYSTEM-MGMT-MIB :: zySysMgmtBootupImage

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › ZYXEL-SYSTEM-MGMT-MIB › zySysMgmtBootupImage

zySysMgmtBootupImage

Module: ZYXEL-SYSTEM-MGMT-MIB

OID (symbolic): ZYXEL-SYSTEM-MGMT-MIB::zySysMgmtBootupImage

OID (numeric): 1.3.6.1.4.1.890.1.15.3.49.1.8

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: The setting value (read index) will be written into non-volatile memory. When rebooting, the selected image will be used.

What is zySysMgmtBootupImage?

This INTEGER selects which firmware image, image1(1) or image2(2), the switch will boot from on the next restart, and the setting is written into non-volatile memory immediately. An admin uses this when staging a firmware upgrade, uploading the new image to the inactive slot and then pointing this object at it before rebooting. Setting it to image2(2) after loading new firmware there ensures the switch boots the upgraded image on the next restart.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.890.1.15.3.49.1.8
snmpwalk -v2c -c public <target> ZYXEL-SYSTEM-MGMT-MIB::zySysMgmtBootupImage

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.890.1.15.3.49.1.8.1
snmpget -v2c -c public <target> ZYXEL-SYSTEM-MGMT-MIB::zySysMgmtBootupImage.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.890.1.15.3.49.1.8.1 i <value>

SNMPv3 example:

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

Start monitoring ZyXEL managed switches (ES/GS series) (config/firmware-image selection, reboot, system-alarm status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ZYXEL-SYSTEM-MGMT-MIB::zySysMgmtBootupImage OID value, configure state conditions and alerts, and monitor any ZyXEL managed switches (ES/GS series) (config/firmware-image selection, reboot, system-alarm status) 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
1.3.6.1.4.1.890zyxelIES5206-MIB
1.3.6.1.4.1.890.1productsIES5206-MIB
1.3.6.1.4.1.890.1.15nwa1100nhNWA1100-NH
1.3.6.1.4.1.890.1.15.3esMgmtNWA1100-NH
Numeric OIDNameModule
1.3.6.1.4.1.890.1.15.3.49zyxelManagementZYXEL-SYSTEM-MGMT-MIB
1.3.6.1.4.1.890.1.15.3.49.1zyxelSysMgmtZYXEL-SYSTEM-MGMT-MIB
1.3.6.1.4.1.890.1.15.3.49.1.8zySysMgmtBootupImageZYXEL-SYSTEM-MGMT-MIB