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-rwxr-xr-xsrc/conf_mode/protocols_isis.py22
1 files changed, 11 insertions, 11 deletions
diff --git a/src/conf_mode/protocols_isis.py b/src/conf_mode/protocols_isis.py
index 120fc68a0..3a0c40dc6 100755
--- a/src/conf_mode/protocols_isis.py
+++ b/src/conf_mode/protocols_isis.py
@@ -56,10 +56,10 @@ def get_config(config=None):
# instead of the VRF instance.
if vrf: isis['vrf'] = vrf
- # As we no re-use this Python handler for both VRF and non VRF instances for
- # IS-IS we need to find out if any interfaces changed so properly adjust
- # the FRR configuration and not by acctident change interfaces from a
- # different VRF.
+ # FRR has VRF support for different routing daemons. As interfaces belong
+ # to VRFs - or the global VRF, we need to check for changed interfaces so
+ # that they will be properly rendered for the FRR config. Also this eases
+ # removal of interfaces from the running configuration.
interfaces_removed = node_changed(conf, base + ['interface'])
if interfaces_removed:
isis['interface_removed'] = list(interfaces_removed)
@@ -196,8 +196,6 @@ def verify(isis):
def generate(isis):
if not isis or 'deleted' in isis:
- isis['frr_isisd_config'] = ''
- isis['frr_zebra_config'] = ''
return None
isis['protocol'] = 'isis' # required for frr/vrf.route-map.frr.tmpl
@@ -214,8 +212,9 @@ def apply(isis):
# The route-map used for the FIB (zebra) is part of the zebra daemon
frr_cfg.load_configuration(zebra_daemon)
- frr_cfg.modify_section(r'(\s+)?ip protocol isis route-map [-a-zA-Z0-9.]+$', '', '(\s|!)')
- frr_cfg.add_before(frr.default_add_before, isis['frr_zebra_config'])
+ frr_cfg.modify_section('(\s+)?ip protocol isis route-map [-a-zA-Z0-9.]+', stop_pattern='(\s|!)')
+ if 'frr_zebra_config' in isis:
+ frr_cfg.add_before(frr.default_add_before, isis['frr_zebra_config'])
frr_cfg.commit_configuration(zebra_daemon)
# Generate empty helper string which can be ammended to FRR commands, it
@@ -225,15 +224,16 @@ def apply(isis):
vrf = ' vrf ' + isis['vrf']
frr_cfg.load_configuration(isis_daemon)
- frr_cfg.modify_section(f'^router isis VyOS{vrf}$', '')
+ frr_cfg.modify_section(f'^router isis VyOS{vrf}', stop_pattern='^exit', remove_stop_mark=True)
for key in ['interface', 'interface_removed']:
if key not in isis:
continue
for interface in isis[key]:
- frr_cfg.modify_section(f'^interface {interface}{vrf}$', '')
+ frr_cfg.modify_section(f'^interface {interface}{vrf}', stop_pattern='^exit', remove_stop_mark=True)
- frr_cfg.add_before(frr.default_add_before, isis['frr_isisd_config'])
+ if 'frr_isisd_config' in isis:
+ frr_cfg.add_before(frr.default_add_before, isis['frr_isisd_config'])
frr_cfg.commit_configuration(isis_daemon)
# Save configuration to /run/frr/config/frr.conf