Junos OS

Hello everyone,

I have an MX480 router with dual Routing Engines running Junos 14.2R4 (32-bit), and I'm planning to upgrade it to Junos 20.4R3 (64-bit).

I wanted to confirm whether it's possible to upgrade directly from a 32-bit version to a 64-bit version, or if I must perform a fresh installation with the 64-bit version.

If the upgrade is possible, I plan to follow this upgrade path:
14.2R4-S5 (32-bit) → 16.2R2.8 (32-bit) → 18.3R3.8 (64-bit) → 20.4R3-S1.3 (64-bit)

Both Routing Engines (RE-S-1800x4 with 16GB of installed DRAM) support the 64-bit Junos version.

I'd appreciate any recommendations or insights on this upgrade. 😊

Thank you!

We had to make the move from 32 to 64 about 4 years ago.  We were advised that a format full install was required for the transition.

The good news is that doing a format install you can go directly to the new version, no jumps required.

The bad news is this does erase the current configuration.  So we copied the configuration off to a usb thumb drive.  Then after the upgrade copy the file as the first rollback onto the newly installed Junos.

The current config file is found in here in the file system:

/config/juniper.conf.gz

The rollback 1 name is in the same directory called juniper.conf.1.gz

Once copied over use rollback 1 in config mode and update the access passwords to be sure the hashes are all good, then commit the saved configuration.

Hello everyone,

I have an MX480 router with dual Routing Engines running Junos 14.2R4 (32-bit), and I'm planning to upgrade it to Junos 20.4R3 (64-bit).

I wanted to confirm whether it's possible to upgrade directly from a 32-bit version to a 64-bit version, or if I must perform a fresh installation with the 64-bit version.

If the upgrade is possible, I plan to follow this upgrade path:
14.2R4-S5 (32-bit) → 16.2R2.8 (32-bit) → 18.3R3.8 (64-bit) → 20.4R3-S1.3 (64-bit)

Both Routing Engines (RE-S-1800x4 with 16GB of installed DRAM) support the 64-bit Junos version.

I'd appreciate any recommendations or insights on this upgrade. 😊

Thank you!

Hello everyone,

I have an MX480 router with dual Routing Engines running Junos 14.2R4 (32-bit), and I'm planning to upgrade it to Junos 20.4R3 (64-bit).

I wanted to confirm whether it's possible to upgrade directly from a 32-bit version to a 64-bit version, or if I must perform a fresh installation with the 64-bit version.

If the upgrade is possible, I plan to follow this upgrade path:
14.2R4-S5 (32-bit) → 16.2R2.8 (32-bit) → 18.3R3.8 (64-bit) → 20.4R3-S1.3 (64-bit)

Both Routing Engines (RE-S-1800x4 with 16GB of installed DRAM) support the 64-bit Junos version.

I'd appreciate any recommendations or insights on this upgrade. 😊

Thank you!

Hello,

You can follow the below upgrade path:

14.2  > 15.1 > 20.4 

This upgrade path is based on the tests performed in the lab with basline line configuration and no linecards.

Please test the upgrade in the customer lab with complete configuration and linecards before implementing the same in production.

Regards,

Akanksha

Hello everyone,

I have an MX480 router with dual Routing Engines running Junos 14.2R4 (32-bit), and I'm planning to upgrade it to Junos 20.4R3 (64-bit).

I wanted to confirm whether it's possible to upgrade directly from a 32-bit version to a 64-bit version, or if I must perform a fresh installation with the 64-bit version.

If the upgrade is possible, I plan to follow this upgrade path:
14.2R4-S5 (32-bit) → 16.2R2.8 (32-bit) → 18.3R3.8 (64-bit) → 20.4R3-S1.3 (64-bit)

Both Routing Engines (RE-S-1800x4 with 16GB of installed DRAM) support the 64-bit Junos version.

I'd appreciate any recommendations or insights on this upgrade. 😊

Thank you!

Hello,

I have already tested my upgrade path (14.2 → 16.2 → 18.3 → 20.4) in a lab on a router running 14.2 (64-bit), and everything went smoothly. My question is about upgrading from a 32-bit version to 64-bit. If it is supported, I will proceed with the mentioned upgrade path.

BR,

Hello,

You can follow the below upgrade path:

14.2  > 15.1 > 20.4 

This upgrade path is based on the tests performed in the lab with basline line configuration and no linecards.

Please test the upgrade in the customer lab with complete configuration and linecards before implementing the same in production.

Regards,

Akanksha

Hello everyone,

I have an MX480 router with dual Routing Engines running Junos 14.2R4 (32-bit), and I'm planning to upgrade it to Junos 20.4R3 (64-bit).

I wanted to confirm whether it's possible to upgrade directly from a 32-bit version to a 64-bit version, or if I must perform a fresh installation with the 64-bit version.

If the upgrade is possible, I plan to follow this upgrade path:
14.2R4-S5 (32-bit) → 16.2R2.8 (32-bit) → 18.3R3.8 (64-bit) → 20.4R3-S1.3 (64-bit)

Both Routing Engines (RE-S-1800x4 with 16GB of installed DRAM) support the 64-bit Junos version.

I'd appreciate any recommendations or insights on this upgrade. 😊

Thank you!

Just to be clear, Juniper support told us that the upgrade from 32 to 64 required the overwrite install process and the upgrade from 32 to 64 was not a supported path.

Hello,

I have already tested my upgrade path (14.2 → 16.2 → 18.3 → 20.4) in a lab on a router running 14.2 (64-bit), and everything went smoothly. My question is about upgrading from a 32-bit version to 64-bit. If it is supported, I will proceed with the mentioned upgrade path.

BR,

Hello,

You can follow the below upgrade path:

14.2  > 15.1 > 20.4 

This upgrade path is based on the tests performed in the lab with basline line configuration and no linecards.

Please test the upgrade in the customer lab with complete configuration and linecards before implementing the same in production.

Regards,

Akanksha

Hello everyone,

I have an MX480 router with dual Routing Engines running Junos 14.2R4 (32-bit), and I'm planning to upgrade it to Junos 20.4R3 (64-bit).

I wanted to confirm whether it's possible to upgrade directly from a 32-bit version to a 64-bit version, or if I must perform a fresh installation with the 64-bit version.

If the upgrade is possible, I plan to follow this upgrade path:
14.2R4-S5 (32-bit) → 16.2R2.8 (32-bit) → 18.3R3.8 (64-bit) → 20.4R3-S1.3 (64-bit)

Both Routing Engines (RE-S-1800x4 with 16GB of installed DRAM) support the 64-bit Junos version.

I'd appreciate any recommendations or insights on this upgrade. 😊

Thank you!

Hello,

I have already tested my upgrade path (14.2 → 16.2 → 18.3 → 20.4) in a lab on a router running 14.2 (64-bit), and everything went smoothly. My question is about upgrading from a 32-bit version to 64-bit. If it is supported, I will proceed with the mentioned upgrade path.

BR,

Hello,

You can follow the below upgrade path:

14.2  > 15.1 > 20.4 

This upgrade path is based on the tests performed in the lab with basline line configuration and no linecards.

Please test the upgrade in the customer lab with complete configuration and linecards before implementing the same in production.

Regards,

Akanksha

Hello everyone,

I have an MX480 router with dual Routing Engines running Junos 14.2R4 (32-bit), and I'm planning to upgrade it to Junos 20.4R3 (64-bit).

I wanted to confirm whether it's possible to upgrade directly from a 32-bit version to a 64-bit version, or if I must perform a fresh installation with the 64-bit version.

If the upgrade is possible, I plan to follow this upgrade path:
14.2R4-S5 (32-bit) → 16.2R2.8 (32-bit) → 18.3R3.8 (64-bit) → 20.4R3-S1.3 (64-bit)

Both Routing Engines (RE-S-1800x4 with 16GB of installed DRAM) support the 64-bit Junos version.

I'd appreciate any recommendations or insights on this upgrade. 😊

Thank you!