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authorChristian Breunig <christian@breunig.cc>2023-09-09 07:13:31 +0200
committerChristian Breunig <christian@breunig.cc>2023-09-09 07:15:58 +0200
commit7f6624f5a6f8bd1749b54103ea5ec9f010adf778 (patch)
treeb6db1e6b452bcf9cfbd2ede10a7f8fc1c8378f7f /src
parenta12559a728310f0e3bf6dc18f7bd2a0ba444b890 (diff)
downloadvyos-1x-7f6624f5a6f8bd1749b54103ea5ec9f010adf778.tar.gz
vyos-1x-7f6624f5a6f8bd1749b54103ea5ec9f010adf778.zip
vxlan: T3700: support VLAN tunnel mapping of VLAN aware bridges
FRR supports a new way of configuring VLAN-to-VNI mappings for EVPN-VXLAN, when working with the Linux kernel. In this new way, the mapping of a VLAN to a VNI is configured against a container VXLAN interface which is referred to as a 'Single VXLAN device (SVD)'. Multiple VLAN to VNI mappings can be configured against the same SVD. This allows for a significant scaling of the number of VNIs since a separate VXLAN interface is no longer required for each VNI. Sample configuration of SVD with VLAN to VNI mappings is shown below. set interfaces bridge br0 member interface vxlan0 set interfaces vxlan vxlan0 external set interfaces vxlan vxlan0 source-interface 'dum0' set interfaces vxlan vxlan0 vlan-to-vni 10 vni '10010' set interfaces vxlan vxlan0 vlan-to-vni 11 vni '10011' set interfaces vxlan vxlan0 vlan-to-vni 30 vni '10030' set interfaces vxlan vxlan0 vlan-to-vni 31 vni '10031'
Diffstat (limited to 'src')
-rwxr-xr-xsrc/conf_mode/interfaces-vxlan.py20
1 files changed, 19 insertions, 1 deletions
diff --git a/src/conf_mode/interfaces-vxlan.py b/src/conf_mode/interfaces-vxlan.py
index a3b0867e0..05f68112a 100755
--- a/src/conf_mode/interfaces-vxlan.py
+++ b/src/conf_mode/interfaces-vxlan.py
@@ -1,6 +1,6 @@
#!/usr/bin/env python3
#
-# Copyright (C) 2019-2022 VyOS maintainers and contributors
+# Copyright (C) 2019-2023 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
@@ -24,6 +24,7 @@ from vyos.config import Config
from vyos.configdict import get_interface_dict
from vyos.configdict import leaf_node_changed
from vyos.configdict import is_node_changed
+from vyos.configdict import node_changed
from vyos.configverify import verify_address
from vyos.configverify import verify_bridge_delete
from vyos.configverify import verify_mtu_ipv6
@@ -58,6 +59,9 @@ def get_config(config=None):
vxlan.update({'rebuild_required': {}})
break
+ tmp = node_changed(conf, base + [ifname, 'vlan-to-vni'], recursive=True)
+ if tmp: vxlan.update({'vlan_to_vni_removed': tmp})
+
# We need to verify that no other VXLAN tunnel is configured when external
# mode is in use - Linux Kernel limitation
conf.set_level(base)
@@ -146,6 +150,20 @@ def verify(vxlan):
raise ConfigError(error_msg)
protocol = 'ipv4'
+ if 'vlan_to_vni' in vxlan:
+ if 'is_bridge_member' not in vxlan:
+ raise ConfigError('VLAN to VNI mapping requires that VXLAN interface '\
+ 'is member of a bridge interface!')
+
+ vnis_used = []
+ for vif, vif_config in vxlan['vlan_to_vni'].items():
+ if 'vni' not in vif_config:
+ raise ConfigError(f'Must define VNI for VLAN "{vif}"!')
+ vni = vif_config['vni']
+ if vni in vnis_used:
+ raise ConfigError(f'VNI "{vni}" is already assigned to a different VLAN!')
+ vnis_used.append(vni)
+
verify_mtu_ipv6(vxlan)
verify_address(vxlan)
verify_bond_bridge_member(vxlan)