From 5565f27d15c5e7378e94aae8db8a894a12e25d7b Mon Sep 17 00:00:00 2001 From: Christian Breunig Date: Sat, 11 May 2024 14:12:31 +0200 Subject: ethernet: T6306: add support for EVPN MH uplink/core tracking When all the underlay links go down the PE no longer has access to the VxLAN +overlay. To prevent blackholing of traffic the server/ES links are protodowned on the PE. A link can be setup for uplink tracking via the following configuration: set interfaces ethernet eth0 evpn uplink --- src/conf_mode/interfaces_ethernet.py | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'src/conf_mode/interfaces_ethernet.py') diff --git a/src/conf_mode/interfaces_ethernet.py b/src/conf_mode/interfaces_ethernet.py index 6da7e6a69..54d0669cb 100755 --- a/src/conf_mode/interfaces_ethernet.py +++ b/src/conf_mode/interfaces_ethernet.py @@ -41,6 +41,7 @@ from vyos.pki import encode_certificate from vyos.pki import load_certificate from vyos.pki import wrap_private_key from vyos.template import render +from vyos.template import render_to_string from vyos.utils.process import call from vyos.utils.dict import dict_search from vyos.utils.dict import dict_to_paths_values @@ -48,6 +49,7 @@ from vyos.utils.dict import dict_set from vyos.utils.dict import dict_delete from vyos.utils.file import write_file from vyos import ConfigError +from vyos import frr from vyos import airbag airbag.enable() @@ -389,6 +391,10 @@ def generate(ethernet): write_file(ca_cert_file_path, '\n'.join(ca_chains)) + ethernet['frr_zebra_config'] = '' + if 'deleted' not in ethernet: + ethernet['frr_zebra_config'] = render_to_string('frr/evpn.mh.frr.j2', ethernet) + return None def apply(ethernet): @@ -407,6 +413,17 @@ def apply(ethernet): call(f'systemctl {eapol_action} wpa_supplicant-wired@{ifname}') + zebra_daemon = 'zebra' + # Save original configuration prior to starting any commit actions + frr_cfg = frr.FRRConfig() + + # The route-map used for the FIB (zebra) is part of the zebra daemon + frr_cfg.load_configuration(zebra_daemon) + frr_cfg.modify_section(f'^interface {ifname}', stop_pattern='^exit', remove_stop_mark=True) + if 'frr_zebra_config' in ethernet: + frr_cfg.add_before(frr.default_add_before, ethernet['frr_zebra_config']) + frr_cfg.commit_configuration(zebra_daemon) + if __name__ == '__main__': try: c = get_config() -- cgit v1.2.3