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The following commit(s) were added to refs/heads/4.20 by this push:
new 79e87a60 Add minreq.sysvmtemplate.versione example for VR live patch
(#618)
79e87a60 is described below
commit 79e87a60638d16f9e4be1e0844d9d95d02538ddb
Author: Manoj Kumar <[email protected]>
AuthorDate: Mon Jan 19 16:43:50 2026 +0530
Add minreq.sysvmtemplate.versione example for VR live patch (#618)
---
source/upgrading/upgrade/_sysvm_restart.rst | 35 ++++++++++++++++++++---------
1 file changed, 25 insertions(+), 10 deletions(-)
diff --git a/source/upgrading/upgrade/_sysvm_restart.rst
b/source/upgrading/upgrade/_sysvm_restart.rst
index 77c40456..3df02b3f 100644
--- a/source/upgrading/upgrade/_sysvm_restart.rst
+++ b/source/upgrading/upgrade/_sysvm_restart.rst
@@ -45,16 +45,31 @@ in the System VMs.
The following services will be restarted once a system VM is live patched:
-
+---------------------+-------------------------------+---------------------------------------------------+
- | **System VM** | **Services** | **Note**
|
-
+---------------------+-------------------------------+---------------------------------------------------+
- | SSVM | cloud, apache2, portmap |
|
-
+---------------------+-------------------------------+---------------------------------------------------+
- | CPVM | cloud |
|
-
+---------------------+-------------------------------+---------------------------------------------------+
- | VRs | haproxy, apache2, dnsmasq | Please set
setting `minreq.sysvmtemplate.version` |
- | | | to proper
value before live-patching |
-
+---------------------+-------------------------------+---------------------------------------------------+
+ +---------------------+-------------------------------+
+ | **System VM** | **Services** |
+ +---------------------+-------------------------------+
+ | SSVM | cloud, apache2, portmap |
+ +---------------------+-------------------------------+
+ | CPVM | cloud |
+ +---------------------+-------------------------------+
+ | VRs | haproxy, apache2, dnsmasq |
+ | | |
+ +---------------------+-------------------------------+
+
+ **NOTE**: Before live patching Virtual Routers (VRs), administrators must
ensure that
+ the global configuration parameter ``minreq.sysvmtemplate.version`` is set
+ to the minimum supported VR template version.
+
+ For example, if the deployed Virtual Router template version is ``4.20.1``,
+ set:
+
+ ::
+
+ minreq.sysvmtemplate.version = 4.20.1
+
+ This ensures that live patching is only performed on Virtual Routers running
+ template version ``4.20.1`` or later. Virtual Routers using older template
+ versions must be upgraded before live patching is attempted.
With respect to VRs, a Network restart without cleanup is initiated to
during live patching to ensure all rules
are re-applied.
