From 3998e140d13d99fde0c814816f4cf7533a38a61a Mon Sep 17 00:00:00 2001 From: Christian Poessinger Date: Fri, 24 Jul 2020 17:15:55 +0200 Subject: ifconfig: T2653: implement update() in derived classes for admin up/down Every derived class must implement update() to set the interfaces admin up/down state. This is required to prevend extensive link flaps when e.g. reconfiguring bond interfaces. --- python/vyos/ifconfig/loopback.py | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'python/vyos/ifconfig/loopback.py') diff --git a/python/vyos/ifconfig/loopback.py b/python/vyos/ifconfig/loopback.py index 7ebd13b54..2b4ebfdcc 100644 --- a/python/vyos/ifconfig/loopback.py +++ b/python/vyos/ifconfig/loopback.py @@ -75,5 +75,15 @@ class LoopbackIf(Interface): # Update IP address entry in our dictionary config.update({'address' : addr}) - # now call the regular function from within our base class + # call base class super().update(config) + + # Enable/Disable of an interface must always be done at the end of the + # derived class to make use of the ref-counting set_admin_state() + # function. We will only enable the interface if 'up' was called as + # often as 'down'. This is required by some interface implementations + # as certain parameters can only be changed when the interface is + # in admin-down state. This ensures the link does not flap during + # reconfiguration. + state = 'down' if 'disable' in config else 'up' + self.set_admin_state(state) -- cgit v1.2.3