[pve-devel] [PATCH pve-network 03/10] controllers: bgp: add bgp-multipath-as-path-relax option
Alexandre Derumier
aderumier at odiso.com
Fri Feb 11 10:33:24 CET 2022
Some users need it to do ecmp when peering with 2 differents asn
Signed-off-by: Alexandre Derumier <aderumier at odiso.com>
---
PVE/Network/SDN/Controllers/BgpPlugin.pm | 9 ++++
.../expected_controller_config | 43 ++++++++++++++++
.../multipath_relax/expected_sdn_interfaces | 41 ++++++++++++++++
test/zones/evpn/multipath_relax/interfaces | 7 +++
test/zones/evpn/multipath_relax/sdn_config | 49 +++++++++++++++++++
5 files changed, 149 insertions(+)
create mode 100644 test/zones/evpn/multipath_relax/expected_controller_config
create mode 100644 test/zones/evpn/multipath_relax/expected_sdn_interfaces
create mode 100644 test/zones/evpn/multipath_relax/interfaces
create mode 100644 test/zones/evpn/multipath_relax/sdn_config
diff --git a/PVE/Network/SDN/Controllers/BgpPlugin.pm b/PVE/Network/SDN/Controllers/BgpPlugin.pm
index 075ca90..1e4e708 100644
--- a/PVE/Network/SDN/Controllers/BgpPlugin.pm
+++ b/PVE/Network/SDN/Controllers/BgpPlugin.pm
@@ -19,6 +19,10 @@ sub type {
sub properties {
return {
+ 'bgp-multipath-as-path-relax' => {
+ type => 'boolean',
+ optional => 1,
+ },
ebgp => {
type => 'boolean',
optional => 1,
@@ -41,6 +45,7 @@ sub options {
'node' => { optional => 0 },
'asn' => { optional => 0 },
'peers' => { optional => 0 },
+ 'bgp-multipath-as-path-relax' => { optional => 1 },
'ebgp' => { optional => 1 },
'ebgp-multihop' => { optional => 1 },
'loopback' => { optional => 1 },
@@ -58,6 +63,8 @@ sub generate_controller_config {
my $ebgp = $plugin_config->{ebgp};
my $ebgp_multihop = $plugin_config->{'ebgp-multihop'};
my $loopback = $plugin_config->{loopback};
+ my $multipath_relax = $plugin_config->{'bgp-multipath-as-path-relax'};
+
my $local_node = PVE::INotify::nodename();
@@ -86,6 +93,8 @@ sub generate_controller_config {
push @controller_config, "bgp disable-ebgp-connected-route-check" if $loopback;
}
+ push @controller_config, "bgp bestpath as-path multipath-relax" if $multipath_relax;
+
#BGP neighbors
if(@peers) {
push @controller_config, "neighbor BGP peer-group";
diff --git a/test/zones/evpn/multipath_relax/expected_controller_config b/test/zones/evpn/multipath_relax/expected_controller_config
new file mode 100644
index 0000000..38cc836
--- /dev/null
+++ b/test/zones/evpn/multipath_relax/expected_controller_config
@@ -0,0 +1,43 @@
+log syslog informational
+ip forwarding
+ipv6 forwarding
+frr defaults datacenter
+service integrated-vtysh-config
+hostname localhost
+!
+!
+vrf vrf_myzone
+ vni 1000
+exit-vrf
+!
+router bgp 65000
+ bgp router-id 192.168.0.1
+ no bgp default ipv4-unicast
+ coalesce-time 1000
+ neighbor VTEP peer-group
+ neighbor VTEP remote-as 65000
+ neighbor VTEP bfd
+ neighbor 192.168.0.2 peer-group VTEP
+ neighbor 192.168.0.3 peer-group VTEP
+ bgp bestpath as-path multipath-relax
+ neighbor BGP peer-group
+ neighbor BGP remote-as 65000
+ neighbor BGP bfd
+ neighbor 192.168.0.1 peer-group BGP
+ neighbor 192.168.0.2 peer-group BGP
+ neighbor 192.168.0.3 peer-group BGP
+ !
+ address-family ipv4 unicast
+ neighbor BGP activate
+ neighbor BGP soft-reconfiguration inbound
+ exit-address-family
+ !
+ address-family l2vpn evpn
+ neighbor VTEP activate
+ advertise-all-vni
+ exit-address-family
+!
+router bgp 65000 vrf vrf_myzone
+!
+line vty
+!
\ No newline at end of file
diff --git a/test/zones/evpn/multipath_relax/expected_sdn_interfaces b/test/zones/evpn/multipath_relax/expected_sdn_interfaces
new file mode 100644
index 0000000..4cf13e0
--- /dev/null
+++ b/test/zones/evpn/multipath_relax/expected_sdn_interfaces
@@ -0,0 +1,41 @@
+#version:1
+
+auto myvnet
+iface myvnet
+ address 10.0.0.1/24
+ bridge_ports vxlan_myvnet
+ bridge_stp off
+ bridge_fd 0
+ mtu 1450
+ ip-forward on
+ arp-accept on
+ vrf vrf_myzone
+
+auto vrf_myzone
+iface vrf_myzone
+ vrf-table auto
+ post-up ip route add vrf vrf_myzone unreachable default metric 4278198272
+
+auto vrfbr_myzone
+iface vrfbr_myzone
+ bridge-ports vrfvx_myzone
+ bridge_stp off
+ bridge_fd 0
+ mtu 1450
+ vrf vrf_myzone
+
+auto vrfvx_myzone
+iface vrfvx_myzone
+ vxlan-id 1000
+ vxlan-local-tunnelip 192.168.0.1
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ mtu 1450
+
+auto vxlan_myvnet
+iface vxlan_myvnet
+ vxlan-id 100
+ vxlan-local-tunnelip 192.168.0.1
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ mtu 1450
diff --git a/test/zones/evpn/multipath_relax/interfaces b/test/zones/evpn/multipath_relax/interfaces
new file mode 100644
index 0000000..66bb826
--- /dev/null
+++ b/test/zones/evpn/multipath_relax/interfaces
@@ -0,0 +1,7 @@
+auto vmbr0
+iface vmbr0 inet static
+ address 192.168.0.1/24
+ gateway 192.168.0.254
+ bridge-ports eth0
+ bridge-stp off
+ bridge-fd 0
diff --git a/test/zones/evpn/multipath_relax/sdn_config b/test/zones/evpn/multipath_relax/sdn_config
new file mode 100644
index 0000000..5a1d8a7
--- /dev/null
+++ b/test/zones/evpn/multipath_relax/sdn_config
@@ -0,0 +1,49 @@
+{
+ version => 1,
+ vnets => {
+ ids => {
+ myvnet => {
+ tag => "100",
+ type => "vnet",
+ zone => "myzone",
+ },
+ },
+ },
+
+ zones => {
+ ids => {
+ myzone => {
+ ipam => "pve",
+ type => "evpn",
+ controller => "evpnctl",
+ 'vrf-vxlan' => 1000,
+ },
+ },
+ },
+ controllers => {
+ ids => {
+ evpnctl => {
+ type => "evpn",
+ 'peers' => '192.168.0.1,192.168.0.2,192.168.0.3',
+ asn => "65000",
+ },
+ localhost => {
+ type => "bgp",
+ 'peers' => '192.168.0.1,192.168.0.2,192.168.0.3',
+ 'bgp-multipath-as-path-relax' => "1",
+ asn => "65000",
+ node => "localhost",
+ },
+ },
+ },
+
+ subnets => {
+ ids => {
+ 'myzone-10.0.0.0-24' => {
+ 'type' => 'subnet',
+ 'vnet' => 'myvnet',
+ 'gateway' => '10.0.0.1',
+ },
+ },
+ },
+}
--
2.30.2
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