Junos software for M-Series, MX-Series, T-Series Platforms

The purpose of this article is to provide information and direct links to Junos Software mentioned in KB21476.

Disclaimer: Juniper provides this document as a means to help customers and Juniper manufacturing select a Junos software version that aligns with their deployment needs. The releases listed below have performed well for the general population, but note that due to the uniqueness of our customer network deployments to include areas such as design, traffic patterns/flows, and specific usage of features and functionality, Juniper recommends that all customers A) read the associated Release Notes to understand how features, functionality, fixes, and any known outstanding issues may apply to your specific network and applications, and B) test and certify the suggested code version(s) to ensure they will perform as expected in your network.

This article applies to the following devices:

• M, T, MX, and PTX Series

For other Junos devices, refer to the Release Notes and the Alerts column on the Download Software pages.

Notes:

1. The software versions included in this article are selected by utilizing input from Juniper Engineering, customers, and analysis of field usage data.
2. To be automatically notified of updates to this document, use the Subscribe link. If you do not see the Subscribe link, log in with your user account.
3. ​Juniper Networks offers optional fee-based services to further aid customers in selecting and testing software releases. If interested in more information, please contact your Juniper Sales Representative to discuss offering details and pricing.

For use by customers and Juniper manufacturing planning an upgrade or initial installation.

Exceptions for evaluating these suggested software versions include:

• A Juniper Engineer has recommended that a customer use a specific version of Junos software that is different from what is listed here in this article.

• You require specific features (Feature Explorer) that are available only in another version of Junos software. In that case, be sure to download the latest maintenance release.

• Your currently installed version of Junos is meeting your requirements as is.

• If you use NSM, refer to the NSM & Junos Compatibility Matrix to make sure the suggested Junos software version can be managed by NSM.

To see the list​ of End of Engineering (EOE) and End of Support (EOS) dates for specific Junos versions, please go to the Junos Dates & Milestones page.

To see features supported per specific Junos versions, please go the Juniper Pathfinder page and navigate to "Feature Explorer": 

 

M-series Suggested Software Release

Read the "Routing Engine Specifications" to determine which Routing Engine supports which architecture (32-bit v.s. 64-bit)
For vmhost image please consult the "VM Host Overview" article.

Platforms	Note	Suggested Software	Jinstall Package	Modified Date
M7i	32-bit PowerPC platforms (15.1 SW EOS 5/2021)	15.1R7	32-bit	2020-04-20
M10i	32-bit PowerPC platforms (15.1 SW EOS 5/2021)	15.1R7	32-bit	2020-04-20
M120	For RE-A-1000-2048 RE-A-2000-4096 Routing Engine (SW EOS 5/2021	15.1R7	32-bit	2020-04-20
M120	For RE-A-1800x2 and RE-A-1800x4 (SW EOS 5/2021)	15.1R7	64-bit	2020-04-20
M320	For RE-1600-2048 RE-A-2000-4096 (SW EOS 5/2021)	15.1R7	32-bit	2020-04-20
M320	For RE-A-1800x2 and RE-A-1800x4 (SW EOS 5/2021)	15.1R7	64-bit	2020-04-20

 

MX-series Suggested Software Release

Read the "Routing Engine Specification" to determine which Routing Engine supports which architecture (32-bit v.s. 64-bit)
For the vmhost image please consult the "VM Host Overview" article.

Platforms	Note	Recommended Release	Jinstall Package	Modified Date
MX5 MX10 MX40 MX80 MX104		17.3R3-S10	32-bit	2020-11-11
MX5 MX10 MX40 MX80 MX104		19.4R3-S3	32-bit	2021-06-01
MX150	Recommended for all MX150	19.4R3-S3 20.2R3-S1 20.4R2	vMX-appliances	2021-06-01
MX204 MX10003	Recommended for all MX204 and MX10003	19.4R3-S3 20.2R3-S1 20.4R2	VMHost	2021-06-09
MX240 MX480 MX960	MX with MX240RE-S-1800x2 RE-S-1800x4 (target upgrade from 17.2 or earlier version)	17.3R3-S10	64-bit	2020-11-11
MX240 MX480 MX960	For all MX with RE-S-X6-64G	17.3R3-S10	VMHost-Installer	2020-11-11
MX240 MX480 MX960	RE-S-1800x2 RE-S-1800x4 and SCBE3-MX	18.4R3-S5	64-bit	2020-11-11
MX240 MX480 MX960	For all MX with RE-S-X6-64G and SCBE3-MX without I40e firmware upgrade	18.4R3-S5	VMHost-Installer	2020-11-11
MX240 MX480 MX960	RE-S-1800x2 RE-S-1800x4 and SCBE3-MX upgrade from 18.4 Not recommended with MPC10E	19.3R3-S2	64-bit	2021-06-01
MX240 MX480 MX960	For all MX with RE-S-X6-64G and SCBE3-MX upgrade from 18.4 Need I40e firmware ver 6.01 upgrade. Not recommend with MPC10E	19.3R3-S2	VMHost-Installer	2021-06-01
MX240 MX480 MX960	RE-S-1800x2 RE-S-1800x4 and SCBE3-MX general suggested software	20.2R3-S1	64-bit	2021-06-01
MX240 MX480 MX960	For all MX with RE-S-X6-64G and SCBE3-MX general suggested software. Need I40e firmware upgrade to 6.01	20.2R3-S1	VMHost-Installer	2021-06-01
MX240 MX480 MX960	RE-S-1800x2 RE-S-1800x4 with SCBE3-MX and MPC10E-10C-MRATE and MPC10E-15C-MRATE	20.2R3-S1	64-bit	2021-06-01
MX240 MX480 MX960	For all MX with RE-S-X6-64G with SCBE3-MX and MPC10E-10C-MRATE and MPC10E-15C-MRATE	20.2R3-S1	VMHost-Installer	2021-06-01
MX240 MX480 MX960	RE-S-1800x2 RE-S-1800x4 and MX-SPC3	19.4R3	64-bit	2020-11-11
MX240 MX480 MX960	For all MX with RE-S-X6-64G and MX-SPC3 (NOTE: SPC3 is not compatible with SCBE3-MX)	19.4R3	VMHost-Installer	2020-11-11
MX2008 MX2010 MX2020	All MX2000 with RE-MX2000-1800x4 REMX2K-1800	17.3R3-S10	64-bit	2020-11-11
MX2008 MX2010 MX2020	All MX2000 with REMX2K-X8	17.3R3-S10	VMHost-Installer	2020-11-11
MX2008 MX2010 MX2020	MX2000 with MIC-MACSEC-MRATE for RE-MX2000-1800x4 REM2K-1800	17.4R3-S3	64-bit	2020-11-11
MX2008 MX2010 MX2020	MX2000 with MIC-MACSEC-MRATE for VM Host Routing Engines	17.4R3-S3	VMHost-Installer	2020-11-11
MX2010 MX2020	MX2000 with MPC11E and SFB3	20.1R1-S4	VMHost-Installer	2020-11-11
MX10003	MX10003 uses the same images and suggested software as MX204. See MX204/MX10003 above			2021-06-09
MX10008	Feature parity release	19.3R2-S2	VMHost	2021-06-01
MX10016	Feature parity release	19.3R2-S2	VMHost	2021-06-01

 

PTX-Series Suggested Software Release

See the "PTX5000 Host Subsystem Description" for the overview of all  PTX Routing Engine Architecture
For the vmhost image please see the "VM Host Overview" article.

Platforms	Note	Suggested Software	Jinstall Package	Modified Date
PTX3000	PTX3000 and PTX5000	17.3R3-S10	64-bit PTX Series	2021-01-26
PTX3000	PTX3000 and PTX5000	17.4R2-S10	64-bit PTX Series	2020-04-20
PTX5000	PTX3000 and PTX5000 with 64-bit Routing Engine	17.3R3-S10	vmhost PTX	2021-01-26
PTX5000	PTX3000 and PTX5000	17.4R2-S10	vmhost PTX	2020-04-20
PTX5000	PTX3000 and PTX5000	18.2R3-S8	64-bit PTX Series	2021-08-10
PTX5000	PTX3000 and PTX5000	18.2R3-S8	vmhost PTX	2021-08-10
PTX5000	PTX3000 and PTX5000	19.3R3-S3	64-bit PTX Series	2021-08-10
PTX5000	PTX3000 and PTX5000	19.3R3-S3	vmhost PTX	2021-08-10
PTX1000	VMHost based platform including NGRE PTX1000 PTX10008 and PTX10016	17.3R3-S10	VMHost PTX Series	2021-01-26
PTX1000	VMHost based platform including NGRE and PTX1000 PTX10008 and PTX10016	17.4R2-S10	VMHost PTX Series	2020-04-20
PTX1000	VMHost based platform	18.2R3-S3	VMHost PTX Series	2020-04-20
PTX1000	VMHost based platform	19.3R2-S2	VMHost PTX Series	2020-04-20
PTX10001-36MR	PTX10001 suggested Junos Evolved software	20.4R2-EVO	Junos Evolved-Software	2021-05-11
PTX10003	PTX10003 suggested Junos Evolved software	20.4R2-EVO	Junos Evolved-Software	2021-05-11
PTX10004	PTX10004 suggested Junos Evolved software	20.4R2-EVO	Junos Evolved Software	2021-05-11
PTX10008	VMHost based platform including NGRE and PTX1000 PTX10008 and PTX10016	17.4R2-S10	VMHost PTX Series	2020-04-20
PTX10008	PTX1000s with JNP10K-RE1 routing engine	18.2R3-S3	VMHost PTX Series	2020-04-20
PTX10008	PTX1000s with JNP10K-RE1 routing engine	19.3R2-S2	VMHost PTX Series	2020-04-20
PTX10008	PTX10008 with PTX10K-LC1201-36CD and JNP10008-SF3 suggested Junos Evolved Software	20.4R2-EVO	Junos Evolved Software	2021-05-11
PTX10016	VMHost based platform including NGRE and PTX1000 PTX10008 and PTX10016	17.4R2-S10	VMHost PTX Series	2020-04-20
PTX10016	PTX1000s with JNP10K-RE1 routing engine	18.2R3-S3	VMHost PTX Series	2020-04-20
PTX10008/16	PTX1000s with AC2 DC2 FAN2	19.2R1-S4	VMHost PTX Series	2020-04-20
PTX10002-60C	VMHost based platform	18.2R3-S6	VMHost	2021-01-21
PTX10002-60C	VMHost based platform	19.3R3-S1	VMHost	2020-01-21

 

T-series Suggested Software Release

Read the Routing Engine Specifications to determine which Routing Engine supports which architecture (32-bit v.s. 64-bit)
For vmhost image please see the "VM Host Overview" article. 

Platforms	Note	Suggested Software	Jinstall Package	Modified Date
T320	SW EOS 5/2021	15.1R7	32-bit	2020-04-20
T640	SW EOS 5/2021	15.1R7	32-bit	2020-04-20
T640	SW EOS 5/2021	15.1R7	64-bit	2020-04-20
T1600	SW EOS 5/2021	15.1R7	32-bit	2020-04-20
T1600	SW EOS 5/2021	15.1R7	64-bit	2020-04-20
T1600	SW EOS 5/2021	16.1R7	64-bit	2020-04-20
T4000	SW EOS 5/2021	15.1R7	64-bit	2020-04-20
T4000	SW EOS 1/2020	16.1R7	64-bit	2020-04-20

• 2021-08-16 Update format to conform with KB article standard
• 2021-08-10 Update PTX3000/5000 with 18.2R3-S8 and 19.3R3-S3
• 2021-06-01 Update MX204/10003 to 19.4R3-S3, 20.2R3-S1, and 20.4R2 - consolidate MX204 and MX10003 entries together
• 2021-05-11 Update all PTX EVO release to 20.4R2-EVO
• 2021-02-22 Update MX with SCBE3-MX and MPC10E to 20.2R2-S2
• 2021-01-07 Added PTX10004, Update all EVO release to 20.4R1-EVO
• 2020-12-07 Update PTX10003 to 19.4R2-S3-EVO and 20.1R2-S2-EVO, PTX10008 with LC1201 to 20.1R2-S2-EVO
• 2020-11-03 Update all MX series software
• 2020-10-02 Remove individual MX2008 and put its entries under the combined MX2000 family
• 2020-06-01 Update MX2010/20 MPC11 recommendation to be 20.1R1 - Reason feature parity and MACSec support
• 2020-05-15 PTX10003 - 19.4R2-S1-EVO
• 2020-03-21 Correct links for MX10008 and update MPC11 - general clean up, correct links to images. Prep for April 2020 update
• 2019-12-30 Added MX240/480/960 MX-SPC3 with 19.3R2
• 2019-12-26: Added PTX10008/16 with AC2, DC2, and FAN2 to be 19.2R1-S2
• 2019-12-13: updated recommendation MX10008 due to feature parity 19.3R2 and 19.2R1-S2

• 2019-12-12: updated recommendation for MX204 and MX10003 to JunOS OS 18.2R3-S

• 2019-12-05: Added MX2000s with MPC11 and SFB3 running Junos OS 19.3R2

• Updated: 2019-11-15

• First publication for comment 2019-06-24