show snmp mib
Syntax (Junos OS and Junos OS Evolved)
show snmp mib (get | get-next | walk) (ascii | decimal | hex) object-id
Description
Display local Simple Network Management Protocol (SNMP) Management Information Base (MIB) object values.
Starting in Junos OS Release 18.3R1, SNMP queue statistics reporting for static interface-sets configured over Aggregate Ethernet (AE) interfaces is supported.
Starting in Junos OS Release 19.1R1, the sysName.0 MIB object displays the fully qualified domain name. That is, if the hostname and domain name are configured on the system, both will show up for the sysName.0 MIB object.
Starting in Junos OS Release 20.2R1, We’ve introduced
the new SNMP MIBs jnxJsSPUMonitoringSPUThreadsNumber
, jnxJsSPUMonitoringSPUThreadIndex
, jnxJsSPUMonitoringSPUThreadLastMinUsage
, jnxJsSPUMonitoringSPUThreadLastHourUsage
, and jnxJsSPUMonitoringSPUThreadLastDayUsage
to monitor the CPU usage information of an SPC3 card.
Options
get |
Retrieve and display one or more SNMP object values. |
get-next |
Retrieve and display the next SNMP object values. On
Junos OS Evolved, when the system (router) receives
|
walk |
Retrieve and display the SNMP object values that are associated with the requested object identifier (OID). When you use this option, the Junos OS displays the objects below the subtree that you specify. Note:
As of Junos OS Release 18.4R1, the CLI configuration command |
ascii |
Display the SNMP object’s string indices as an ASCII-key representation. |
decimal |
Display the SNMP object values in the decimal (default) format. The |
hex |
Display the SNMP object values in the hexadecimal format. |
object-id |
The object can be represented by a sequence of dotted
integers (such as |
Required Privilege Level
snmp | To view this statement in the configuration. |
Output Fields
Table 1 describes
the output fields for the show snmp mib
command. Output
fields are listed in the approximate order in which they appear.
Field Name |
Field Description |
---|---|
|
Object name and numeric instance value. |
|
Object value. The Junos OS translates OIDs into the corresponding object names. |
Sample Output
- show snmp mib get
- show snmp mib get (Routing Engine)
- show snmp mib get (Routing Engine, PTX10003)
- show snmp mib get (Multiple Objects)
- show snmp mib get (Layer 2 Policer)
- show snmp mib get-next
- show snmp mib get-next (Specify an OID)
- show snmp mib walk
- show snmp mib walk (QFX Series)
- show snmp mib walk (Junos OS Evolved)
- show snmp mib walk (ASCII)
- show snmp mib walk (Multiple Indices)
- show snmp mib walk decimal
- show snmp mib walk decimal (Multiple Indices)
- show snmp mib walk hex
- show snmp mib walk (Queue Statistics)
- show snmp mib walk bgp (MX Series)
- show snmp mib walk mplsL3VpnMIB (MX Series)
- show snmp mib walk (PTX10003)
- show snmp mib walk usmUserAuthProtocol (MX-Series and SRX-Series)
- show snmp mib walk ascii jnxWlanWAPStatusTable (SRX320, SRX340, SRX345, and SRX550M)
- show snmp mib walk jnxWlanWAPClientTable (SRX320, SRX340, SRX345, and SRX550M)
- show snmp mib walk jnxJsSPUMonitoringSPUThreadsNumber (SRX5400, SRX5600, and SRX5800)
- show snmp mib walk jnxJsSPUMonitoringSPUThreadIndex (SRX5400, SRX5600, and SRX5800)
- show snmp mib get jnxJsSPUMonitoringSPUThreadLastMinUsage.5.8 (SRX5400, SRX5600, and SRX5800)
- show snmp mib get jnxJsSPUMonitoringSPUThreadLastHourUsage.5.8 (SRX5400, SRX5600, SRX5800)
- show snmp mib get jnxJsSPUMonitoringSPUThreadLastDayUsage.5.8 (SRX5400, SRX5600, and SRX5800)
- show snmp mib walk ifJnxTable (QFX5220)
- show snmp mib walk jnxCosPfcPriorityTable (QFX5220)
show snmp mib get
user@host> show snmp mib get sysObjectID.0 sysObjectID.0 = jnxProductNameM20
show snmp mib get (Routing Engine)
user@router> show snmp mib get jnxFruName.9.1.0.0 jnxFruName.9.1.0.0 = Routing Engine 0
show snmp mib get (Routing Engine, PTX10003)
user@router> show snmp mib get jnxFruName.9.1.0.0 jnxFruName.9.1.0.0 = Routing Engine slot 0
show snmp mib get (Multiple Objects)
user@host> show snmp mib get “sysObjectID.0 sysUpTime.0” sysObjectID.0 = jnxProductNameM20 sysUpTime.0 = 1640992
show snmp mib get (Layer 2 Policer)
user@host> show snmp mib get ifInOctets.25970 ifInOctets.25970 = 7545720
show snmp mib get-next
user@host> show snmp mib get-next jnxMibs jnxBoxClass.0 = jnxProductLineM20.0
show snmp mib get-next (Specify an OID)
user@host> show snmp mib get-next 1.3.6.1 sysDescr.0 = Juniper Networks, Inc. m20 internet router, kernel Junos OS Release: 2004-1 Build date: build date UTC Copyright (c) 1996-2004 Juniper Networks, Inc.
show snmp mib walk
user@host> show snmp mib walk system sysDescr.0 = Juniper Networks, Inc. m20 internet router, kernel Junos OS Release #0: 2004-1 Build date: build date UTC Copyright (c) 1996-2004 Juniper Networks, Inc. sysObjectID.0 = jnxProductNameM20 sysUpTime.0 = 1640992 sysContact.0 = Your contact sysName.0 = my router sysLocation.0 = building 1 sysServices.0 = 4
show snmp mib walk (QFX Series)
user@switch> show snmp mib walk system sysDescr.0 = Juniper Networks, Inc. qfx3500s internet router, kernel JUNOS 11.1-20100926.0 #0: 2010-09-26 06:17:38 UTC Build date: 2010-09-26 06:00:10 sysObjectID.0 = jnxProductQFX3500 sysUpTime.0 = 138980301 sysContact.0 = System Contact sysName.0 = LabQFX3500 sysLocation.0 = Lab sysServices.0 = 4
show snmp mib walk (Junos OS Evolved)
user@host> show snmp mib walk system sysDescr.0 = Juniper Networks, Inc. ptx10003-80c , kernel JUNOS 22.1-202109210525.0-EVO, Copyright (c) 1996-2021 Juniper Networks, Inc. sysObjectID.0 = jnxProductNamePTX1000380c sysUpTime.0 = 72814201 sysContact.0 sysName.0 = evoptx10k-a.englab.juniper.net sysLocation.0 sysServices.0 = 4
show snmp mib walk (ASCII)
user@host> show snmp mib walk ascii jnxUtilData jnxUtilCounter32Value."fred" = 100
show snmp mib walk (Multiple Indices)
user@host> show snmp mib walk ascii jnxFWCounterByteCount jnxFWCounterByteCount."fe-1/3/0.0-i"."CLASS_BE-fe-1/3/0.0-i".2 = 0 jnxFWCounterByteCount."fe-1/3/0.0-i"."CLASS_CC-fe-1/3/0.0-i".2 = 0 jnxFWCounterByteCount."fe-1/3/0.0-i"."CLASS_RT-fe-1/3/0.0-i".2 = 0 .......
show snmp mib walk decimal
user@host>show snmp mib walk decimal jnxUtilData jnxUtilCounter32Value.102.114.101.100 = 100
show snmp mib walk decimal (Multiple Indices)
user@host> show snmp mib walk ascii jnxFWCounterByteCount jnxFWCounterByteCount."fe-1/3/0.0-i"."CLASS_BE-fe-1/3/0.0-i".2 = 0 jnxFWCounterByteCount."fe-1/3/0.0-i"."CLASS_CC-fe-1/3/0.0-i".2 = 0 jnxFWCounterByteCount."fe-1/3/0.0-i"."CLASS_RT-fe-1/3/0.0-i".2 = 0 .......
show snmp mib walk hex
user@host> show snmp mib walk hex jnxBgpM2PeerRemoteAddr jnxBgpM2PeerRemoteAddr.0.1.10.0.3.3.1.10.0.3.1 = 0a 00 03 01 jnxBgpM2PeerRemoteAddr.0.1.32.32.32.9.1.32.32.32.32 = 00 00 00 00 jnxBgpM2PeerRemoteAddr.0.1.62.40.96.38.1.62.40.96.19 = 3e 28 60 13 jnxBgpM2PeerRemoteAddr.0.1.62.40.96.38.1.62.40.96.39 = 3e 28 60 27
show snmp mib walk (Queue Statistics)
To get interface-set queue statistics from jnxCosQstatQedPkts MIB with using interface-set SNMP index, use the following command:
show snmp mib walk jnxCosQstatQedPkts.interface-set snmp index
For example, if the interface-set SNMP index is 67108866
user@host> show snmp mib walk jnxCosQstatQedPkts.67108866 jnxCosQstatQedPkts.67108866.0 = 10 jnxCosQstatQedPkts.67108866.1 = 0 jnxCosQstatQedPkts.67108866.2 = 0 jnxCosQstatQedPkts.67108866.3 = 0 jnxCosQstatQedPkts.67108866.4 = 0 jnxCosQstatQedPkts.67108866.5 = 0 jnxCosQstatQedPkts.67108866.6 = 0 jnxCosQstatQedPkts.67108866.7 = 0
To get interface-set queue statistics from jnxCosIfsetQstatQedPkts MIB with using interface-set SNMP index, use the following command:
show snmp mib walk jnxCosIfsetQstatQedPkts.interface-set snmp index
For example, if the interface-set snmp index is 67108866
user@host> show snmp mib walk jnxCosIfsetQstatQedPkts.67108866 jnxCosIfsetQstatQedPkts.67108866.0 = 10 jnxCosIfsetQstatQedPkts.67108866.1 = 0 jnxCosIfsetQstatQedPkts.67108866.2 = 0 jnxCosIfsetQstatQedPkts.67108866.3 = 0 jnxCosIfsetQstatQedPkts.67108866.4 = 0 jnxCosIfsetQstatQedPkts.67108866.5 = 0 jnxCosIfsetQstatQedPkts.67108866.6 = 0 jnxCosIfsetQstatQedPkts.67108866.7 = 0
To get Interface-set queue statistics from jnxCosIfsetQstatQedPkts MIB using interface-set member IFL SNMP index, use the following command:
show snmp mib walk jnxCosIfsetQstatQedPkts.interface-set member IFL SNMP index
For example, if the interface-set member IFL SNMP is 519
user@host> show snmp mib walk jnxCosIfsetQstatQedPkts.519 jnxCosIfsetQstatQedPkts.519.0 = 10 jnxCosIfsetQstatQedPkts.519.1 = 0 jnxCosIfsetQstatQedPkts.519.2 = 0 jnxCosIfsetQstatQedPkts.519.3 = 0 jnxCosIfsetQstatQedPkts.519.4 = 0 jnxCosIfsetQstatQedPkts.519.5 = 0 jnxCosIfsetQstatQedPkts.519.6 = 0 jnxCosIfsetQstatQedPkts.519.7 = 0
show snmp mib walk bgp (MX Series)
Use the show snmp mib walk bgp
to see the BGP versions.
user@host> show snmp mib walk bgp
bgpVersion.0 = 10
bgpLocalAs.0 = 1
bgpPeerIdentifier.2.2.2.2 = 2.2.2.2
bgpPeerIdentifier.3.3.3.3 = 3.3.3.3
bgpPeerInUpdates.2.2.2.2 = 3
bgpPeerInUpdates.3.3.3.3 = 2
bgpPeerOutUpdates.2.2.2.2 = 1
bgpPeerOutUpdates.3.3.3.3 = 1
bgpPeerInTotalMessages.2.2.2.2 = 11
bgpPeerInTotalMessages.3.3.3.3 = 10
bgpPeerOutTotalMessages.2.2.2.2 = 8
bgpPeerOutTotalMessages.3.3.3.3 = 8
show snmp mib walk mplsL3VpnMIB (MX Series)
Use the show snmp mib walk mplsL3VpnMIB
to see attributes
of L3VPN based MPLS.
user@host> show snmp mib walk mplsL3VpnMIB
mplsL3VpnConfiguredVrfs.0 = 1
mplsL3VpnActiveVrfs.0 = 1
mplsL3VpnConnectedInterfaces.0 = 1
mplsL3VpnNotificationEnable.0 = 2
mplsL3VpnVrfConfMaxPossRts.0 = 0
mplsL3VpnVrfConfRteMxThrshTime.0 = 0
mplsL3VpnIllLblRcvThrsh.0 = 0
mplsL3VpnIfVpnClassification.3.114.101.100.548 = 2
mplsL3VpnIfVpnRouteDistProtocol.3.114.101.100.548 = 40 7f
mplsL3VpnIfConfStorageType.3.114.101.100.548 = 5
mplsL3VpnIfConfRowStatus.3.114.101.100.548 = 1
mplsL3VpnVrfVpnId.3.114.101.100
mplsL3VpnVrfDescription.3.114.101.100 = red
mplsL3VpnVrfRD.3.114.101.100 = 2:1
mplsL3VpnVrfCreationTime.3.114.101.100 = 9111800
mplsL3VpnVrfOperStatus.3.114.101.100 = 1
mplsL3VpnVrfActiveInterfaces.3.114.101.100 = 1
mplsL3VpnVrfAssociatedInterfaces.3.114.101.100 = 1
mplsL3VpnVrfConfMidRteThresh.3.114.101.100 = 0
mplsL3VpnVrfConfHighRteThresh.3.114.101.100 = 0
mplsL3VpnVrfConfMaxRoutes.3.114.101.100 = 0
mplsL3VpnVrfConfLastChanged.3.114.101.100 = 9111800
show snmp mib walk (PTX10003)
On PTX10003-80C and PTX10003-160C devices, the show snmp
mib walk jnxFilledDescr
output shows only the fan tray number.
This output does not show the number of fan slots present in each
tray.
user@router> show snmp mib walk jnxFilledDescr
jnxFilledDescr.1.0.0.0 = Chassis
jnxFilledDescr.4.2.0.0 = Fan Tray 1
jnxFilledDescr.4.3.0.0 = Fan Tray 2
jnxFilledDescr.4.4.0.0 = Fan Tray 3
[...Output truncated...]
show snmp mib walk usmUserAuthProtocol (MX-Series and SRX-Series)
Use show snmp mib walk usmUserAuthProtocol
to see the SHA
authentication type.
user@router> show snmp mib walk usmUserAuthProtocol
usmUserAuthProtocol.< usmUserEngineID>.<usmUserName> =
usmHMAC128SHA224AuthProtocol
New possible set of values for ‘usmUserAuthProtocol’ are:
usmHMAC128SHA224AuthProtocol
usmHMAC192SHA256AuthProtocol
usmHMAC256SHA384AuthProtocol
usmHMAC384SHA512AuthProtocol
show snmp mib walk ascii jnxWlanWAPStatusTable (SRX320, SRX340, SRX345, and SRX550M)
Use the show snmp mib walk ascii jnxWlanWAPStatusTable
command to monitor the Wi-Fi Mini-Physical Interface Module (Mini-PIM)
status.
user@host> show snmp mib walk ascii jnxWlanWAPStatusTable
jnxWAPStatusIfdIndex.161 = 161
jnxWAPStatusIfdIndex.162 = 162
jnxWAPStatusAccessPoint.161 = bj345b_wl3_wap
jnxWAPStatusAccessPoint.162 = bj345b_wap
jnxWAPStatusType.161 = Internal
jnxWAPStatusType.162 = Internal
jnxWAPStatusLocation.161 = Default Location
jnxWAPStatusLocation.162 = Default Location
jnxWAPStatusSerialNumber.161
jnxWAPStatusSerialNumber.162
jnxWAPStatusFirmwareVersion.161 = v1.1.0
jnxWAPStatusFirmwareVersion.162 = v1.1.0
jnxWAPStatusAlternateVersion.161 = v1.1.0
jnxWAPStatusAlternateVersion.162 = v1.1.0
jnxWAPStatusCountry.161 = US
jnxWAPStatusCountry.162 = US
jnxWAPStatusAccessInterface.161 = wl-3/0/0
jnxWAPStatusAccessInterface.162 = wl-4/0/0
jnxWAPStatusSystemTime.161 = Fri Jun 21 05:05:42 UTC 2019
jnxWAPStatusSystemTime.162 = Fri Jun 21 05:38:46 UTC 2019
jnxWAPStatusPacketCapture.161 = Off
jnxWAPStatusPacketCapture.162 = Off
jnxWAPStatusEthernetPortMAC.161 = 56:48:0d:5e:8f:c5
jnxWAPStatusEthernetPortMAC.162 = 8a:b7:0a:7e:ad:8a
jnxWAPStatusEthernetIPv4.161
jnxWAPStatusEthernetIPv4.162
jnxWAPStatusRadio1Status.161 = On
jnxWAPStatusRadio1Status.162 = On
[...Output truncated...]
show snmp mib walk jnxWlanWAPClientTable (SRX320, SRX340, SRX345, and SRX550M)
Use the show snmp mib walk jnxWlanWAPClientTable
command
to monitor the Wi-Fi Mini-PIM client information.
user@host> show snmp mib walk jnxWlanWAPClientTable
jnxWAPClientIfdIndex.161.1 = 161
jnxWAPClientIfdIndex.162.1 = 162
jnxWAPClientIfdIndex.162.2 = 162
jnxWAPClientIndex.161.1 = 1
jnxWAPClientIndex.162.1 = 1
jnxWAPClientIndex.162.2 = 2
jnxWAPClientRadioID.161.1 = 1
jnxWAPClientRadioID.162.1 = 1
jnxWAPClientRadioID.162.2 = 1
jnxWAPClientSSID.161.1 = bj345b_wl3_5g
jnxWAPClientSSID.162.1 = bj345b_5g
jnxWAPClientSSID.162.2 = bj345b_5g
jnxWAPClientMAC.161.1 = e8:4e:06:64:38:89
jnxWAPClientMAC.162.1 = e8:4e:06:64:38:a3
jnxWAPClientMAC.162.2 = e8:4e:06:63:9d:f6
jnxWAPClientAuth.161.1 = NO
[...Output truncated...]
show snmp mib walk jnxJsSPUMonitoringSPUThreadsNumber (SRX5400, SRX5600, and SRX5800)
Use the show snmp mib walk jnxJsSPUMonitoringSPUThreadsNumber
command to list the indices of flow threads in an SPU.
user@host> show snmp mib walk jnxJsSPUMonitoringSPUThreadsNumber
jnxJsSPUMonitoringSPUThreadsNumber.4 = 26
jnxJsSPUMonitoringSPUThreadsNumber.5 = 26
jnxJsSPUMonitoringSPUThreadsNumber.16 = 0
jnxJsSPUMonitoringSPUThreadsNumber.17 = 0
jnxJsSPUMonitoringSPUThreadsNumber.18 = 0
jnxJsSPUMonitoringSPUThreadsNumber.19 = 0
show snmp mib walk jnxJsSPUMonitoringSPUThreadIndex (SRX5400, SRX5600, and SRX5800)
Use the show snmp mib walk jnxJsSPUMonitoringSPUThreadIndex
command to list the indices of flow threads in an SPU.
user@host> show snmp mib walk jnxJsSPUMonitoringSPUThreadIndex
jnxJsSPUMonitoringSPUThreadIndex.4.0 = 0
jnxJsSPUMonitoringSPUThreadIndex.4.1 = 1
jnxJsSPUMonitoringSPUThreadIndex.4.2 = 2
jnxJsSPUMonitoringSPUThreadIndex.4.3 = 3
... ...
jnxJsSPUMonitoringSPUThreadIndex.5.22 = 22
jnxJsSPUMonitoringSPUThreadIndex.5.23 = 23
jnxJsSPUMonitoringSPUThreadIndex.5.24 = 24
jnxJsSPUMonitoringSPUThreadIndex.5.25 = 25
show snmp mib get jnxJsSPUMonitoringSPUThreadLastMinUsage.5.8 (SRX5400, SRX5600, and SRX5800)
Use the show snmp mib get jnxJsSPUMonitoringSPUThreadLastMinUsage.5.8
command to monitor the average CPU usage for the last minute on
the specified thread.
user@host> show snmp mib get jnxJsSPUMonitoringSPUThreadLastMinUsage.5.8
jnxJsSPUMonitoringSPUThreadLastMinUsage.5.8 = 0
show snmp mib get jnxJsSPUMonitoringSPUThreadLastHourUsage.5.8 (SRX5400, SRX5600, SRX5800)
Use the show snmp mib get jnxJsSPUMonitoringSPUThreadLastHourUsage.5.8
command to monitor the average CPU usage for the last hour on the
specified thread.
user@host> show snmp mib get jnxJsSPUMonitoringSPUThreadLastHourUsage.5.8
jnxJsSPUMonitoringSPUThreadLastHourUsage.5.8 = 0
show snmp mib get jnxJsSPUMonitoringSPUThreadLastDayUsage.5.8 (SRX5400, SRX5600, and SRX5800)
Use the show snmp mib get jnxJsSPUMonitoringSPUThreadLastDayUsage.5.8
command to monitor the average CPU usage for the last 24 hours on
the specified thread.
user@host> show snmp mib get jnxJsSPUMonitoringSPUThreadLastDayUsage.5.8
jnxJsSPUMonitoringSPUThreadLastDayUsage.5.8 = 0
show snmp mib walk ifJnxTable (QFX5220)
user@switch> show snmp mib walk ifJnxTable | grep Ecn ifJnxOutEcnMarkedPackets.4 = 0 ifJnxOutEcnMarkedPackets.6 = 0 ifJnxOutEcnMarkedPackets.16 = 0 ifJnxOutEcnMarkedPackets.193 = 0 ifJnxOutEcnMarkedPackets.194 = 0 ifJnxOutEcnMarkedPackets.501 = 0 ifJnxOutEcnMarkedPackets.502 = 0 ifJnxOutEcnMarkedPackets.503 = 0 ifJnxOutEcnMarkedPackets.504 = 0 show interfaces et-0/0/0 extensive ... Output errors: Carrier transitions: 0, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0, FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0, ECN Marked packets: 0
user@switch> show snmp mib walk ifJnxTable | grep InQ ifJnxInQDrops.4 = 0 ifJnxInQDrops.6 = 0 ifJnxInQDrops.16 = 0 ifJnxInQDrops.193 = 0 ifJnxInQDrops.194 = 0 ifJnxInQDrops.501 = 0 ifJnxInQDrops.502 = 0 ifJnxInQDrops.503 = 0 ifJnxInQDrops.504 = 0 ifJnxInQDrops.505 = 0 show interfaces et-0/0/0 extensive ... Input errors: Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 0
show snmp mib walk jnxCosPfcPriorityTable (QFX5220)
user@switch> show snmp mib walk jnxCosPfcPriorityTable jnxCosPfcPriorityRequestsTx.503.0 = 0 jnxCosPfcPriorityRequestsTx.503.1 = 0 jnxCosPfcPriorityRequestsTx.503.2 = 0 jnxCosPfcPriorityRequestsTx.503.3 = 0 jnxCosPfcPriorityRequestsTx.503.4 = 0 jnxCosPfcPriorityRequestsTx.503.5 = 0 jnxCosPfcPriorityRequestsTx.503.6 = 0 jnxCosPfcPriorityRequestsTx.503.7 = 0 jnxCosPfcPriorityRequestsRx.503.0 = 0 jnxCosPfcPriorityRequestsRx.503.1 = 0 jnxCosPfcPriorityRequestsRx.503.2 = 0 jnxCosPfcPriorityRequestsRx.503.3 = 0 jnxCosPfcPriorityRequestsRx.503.4 = 0 jnxCosPfcPriorityRequestsRx.503.5 = 0 jnxCosPfcPriorityRequestsRx.503.6 = 0 jnxCosPfcPriorityRequestsRx.503.7 = 0 show interfaces et-0/0/0 extensive ... MAC Priority Flow Control Statistics: Priority : 0 0 0 Priority : 1 0 0 Priority : 2 0 0 Priority : 3 0 0 Priority : 4 0 0 Priority : 5 0 0 Priority : 6 0 0 Priority : 7 0 0
Release Information
Command introduced before Junos OS Release 7.4.
ascii
and decimal
options introduced in
Junos OS Release 9.6.
ascii
and decimal
options introduced in
Junos OS Release 9.6 for EX Series switches.
hex
option introduced in Junos OS Release 19.2R2.
Behavior in regard to sysName.0 MIB object changed in Junos OS Release 19.1R1.