Add Juniper ISSU and NSSU support#400
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Pull request overview
This PR extends the Junos device driver to support Juniper ISSU/NSSU upgrade flows and adds a system snapshot helper intended to enforce dual-partition best practices during upgrades.
Changes:
- Add
issu/nssuoptions toJunosDevice.install_os()and adjust upgrade/reboot handling logic. - Add
JunosDevice.install_os_multi()to perform multi-member (virtual-chassis) upgrades without NSSU. - Add
request_system_snapshot()plus polling-based verification for snapshot completion.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 7 comments.
| File | Description |
|---|---|
| pyntc/devices/jnpr_device.py | Adds ISSU/NSSU install options, a multi-device install flow, and snapshot request/verification helpers. |
| changes/mm.added | Adds a changelog entry for the new Juniper install options. |
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jtdub
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Jul 10, 2026
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New Pull Request
This PR adds Juniper install options for in-service software upgrade and nonstop software upgrade for SRX and EX devices.
This is in testing and may need some revisions.
SDK docs - https://junos-pyez.readthedocs.io/en/2.8.2/jnpr.junos.utils.html#jnpr.junos.utils.sw.SW.install
rpc.cli() - used to run commands not available in the sdk.
Change Notes
Justification