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system-ovn.at
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AT_BANNER([system-ovn])
AT_SETUP([ovn -- 2 LRs connected via LS, gateway router, SNAT and DNAT])
AT_KEYWORDS([ovnnat])
CHECK_CONNTRACK()
CHECK_CONNTRACK_NAT()
ovn_start
OVS_TRAFFIC_VSWITCHD_START()
ADD_BR([br-int])
# Set external-ids in br-int needed for ovn-controller
ovs-vsctl \
-- set Open_vSwitch . external-ids:system-id=hv1 \
-- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
-- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
-- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
-- set bridge br-int fail-mode=secure other-config:disable-in-band=true
# Start ovn-controller
start_daemon ovn-controller
# Logical network:
# Two LRs - R1 and R2 that are connected to each other via LS "join"
# in 20.0.0.0/24 network. R1 has switchess foo (192.168.1.0/24) and
# bar (192.168.2.0/24) connected to it. R2 has alice (172.16.1.0/24) connected
# to it. R2 is a gateway router on which we add NAT rules.
#
# foo -- R1 -- join - R2 -- alice
# |
# bar ----
ovn-nbctl create Logical_Router name=R1
ovn-nbctl create Logical_Router name=R2 options:chassis=hv1
ovn-nbctl ls-add foo
ovn-nbctl ls-add bar
ovn-nbctl ls-add alice
ovn-nbctl ls-add join
# Connect foo to R1
ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24
ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \
type=router options:router-port=foo addresses=\"00:00:01:01:02:03\"
# Connect bar to R1
ovn-nbctl lrp-add R1 bar 00:00:01:01:02:04 192.168.2.1/24
ovn-nbctl lsp-add bar rp-bar -- set Logical_Switch_Port rp-bar \
type=router options:router-port=bar addresses=\"00:00:01:01:02:04\"
# Connect alice to R2
ovn-nbctl lrp-add R2 alice 00:00:02:01:02:03 172.16.1.1/24
ovn-nbctl lsp-add alice rp-alice -- set Logical_Switch_Port rp-alice \
type=router options:router-port=alice addresses=\"00:00:02:01:02:03\"
# Connect R1 to join
ovn-nbctl lrp-add R1 R1_join 00:00:04:01:02:03 20.0.0.1/24
ovn-nbctl lsp-add join r1-join -- set Logical_Switch_Port r1-join \
type=router options:router-port=R1_join addresses='"00:00:04:01:02:03"'
# Connect R2 to join
ovn-nbctl lrp-add R2 R2_join 00:00:04:01:02:04 20.0.0.2/24
ovn-nbctl lsp-add join r2-join -- set Logical_Switch_Port r2-join \
type=router options:router-port=R2_join addresses='"00:00:04:01:02:04"'
# Static routes.
ovn-nbctl lr-route-add R1 172.16.1.0/24 20.0.0.2
ovn-nbctl lr-route-add R2 192.168.0.0/16 20.0.0.1
# Logical port 'foo1' in switch 'foo'.
ADD_NAMESPACES(foo1)
ADD_VETH(foo1, foo1, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \
"192.168.1.1")
ovn-nbctl lsp-add foo foo1 \
-- lsp-set-addresses foo1 "f0:00:00:01:02:03 192.168.1.2"
# Logical port 'alice1' in switch 'alice'.
ADD_NAMESPACES(alice1)
ADD_VETH(alice1, alice1, br-int, "172.16.1.2/24", "f0:00:00:01:02:04", \
"172.16.1.1")
ovn-nbctl lsp-add alice alice1 \
-- lsp-set-addresses alice1 "f0:00:00:01:02:04 172.16.1.2"
# Logical port 'bar1' in switch 'bar'.
ADD_NAMESPACES(bar1)
ADD_VETH(bar1, bar1, br-int, "192.168.2.2/24", "f0:00:00:01:02:05", \
"192.168.2.1")
ovn-nbctl lsp-add bar bar1 \
-- lsp-set-addresses bar1 "f0:00:00:01:02:05 192.168.2.2"
# Add a DNAT rule.
ovn-nbctl -- --id=@nat create nat type="dnat" logical_ip=192.168.1.2 \
external_ip=30.0.0.2 -- add logical_router R2 nat @nat
# Add a SNAT rule
ovn-nbctl -- --id=@nat create nat type="snat" logical_ip=192.168.2.2 \
external_ip=30.0.0.1 -- add logical_router R2 nat @nat
# wait for ovn-controller to catch up.
ovn-nbctl --wait=hv sync
OVS_WAIT_UNTIL([ovs-ofctl dump-flows br-int | grep 'nat(src=30.0.0.1)'])
# 'alice1' should be able to ping 'foo1' directly.
NS_CHECK_EXEC([alice1], [ping -q -c 3 -i 0.3 -w 2 192.168.1.2 | FORMAT_PING], \
[0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
# North-South DNAT: 'alice1' should also be able to ping 'foo1' via 30.0.0.2
NS_CHECK_EXEC([alice1], [ping -q -c 3 -i 0.3 -w 2 30.0.0.2 | FORMAT_PING], \
[0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
# Check conntrack entries.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(172.16.1.2) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=172.16.1.2,dst=30.0.0.2,id=<cleared>,type=8,code=0),reply=(src=192.168.1.2,dst=172.16.1.2,id=<cleared>,type=0,code=0),zone=<cleared>
])
# South-North SNAT: 'bar1' pings 'alice1'. But 'alice1' receives traffic
# from 30.0.0.1
NS_CHECK_EXEC([bar1], [ping -q -c 3 -i 0.3 -w 2 172.16.1.2 | FORMAT_PING], \
[0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
# We verify that SNAT indeed happened via 'dump-conntrack' command.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=192.168.2.2,dst=172.16.1.2,id=<cleared>,type=8,code=0),reply=(src=172.16.1.2,dst=30.0.0.1,id=<cleared>,type=0,code=0),zone=<cleared>
])
# Add static routes to handle east-west NAT.
ovn-nbctl lr-route-add R1 30.0.0.0/24 20.0.0.2
# wait for ovn-controller to catch up.
ovn-nbctl --wait=hv sync
# Flush conntrack entries for easier output parsing of next test.
AT_CHECK([ovs-appctl dpctl/flush-conntrack])
# East-west DNAT and SNAT: 'bar1' pings 30.0.0.2. 'foo1' receives it.
NS_CHECK_EXEC([bar1], [ping -q -c 3 -i 0.3 -w 2 30.0.0.2 | FORMAT_PING], \
[0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
# As we have a static route that sends all packets with destination
# 30.0.0.2 to R2, it hits the DNAT rule and converts 30.0.0.2 to 192.168.1.2
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.2) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=192.168.2.2,dst=30.0.0.2,id=<cleared>,type=8,code=0),reply=(src=192.168.1.2,dst=192.168.2.2,id=<cleared>,type=0,code=0),zone=<cleared>
])
# As we have a SNAT rule that converts 192.168.2.2 to 30.0.0.1, the source is
# SNATted and 'foo1' receives it.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=192.168.2.2,dst=192.168.1.2,id=<cleared>,type=8,code=0),reply=(src=192.168.1.2,dst=30.0.0.1,id=<cleared>,type=0,code=0),zone=<cleared>
])
OVS_APP_EXIT_AND_WAIT([ovn-controller])
as ovn-sb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as ovn-nb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as northd
OVS_APP_EXIT_AND_WAIT([ovn-northd])
as
OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
/connection dropped.*/d"])
AT_CLEANUP
AT_SETUP([ovn -- 2 LRs connected via LS, gateway router, easy SNAT])
AT_KEYWORDS([ovnnat])
CHECK_CONNTRACK()
CHECK_CONNTRACK_NAT()
ovn_start
OVS_TRAFFIC_VSWITCHD_START()
ADD_BR([br-int])
# Set external-ids in br-int needed for ovn-controller
ovs-vsctl \
-- set Open_vSwitch . external-ids:system-id=hv1 \
-- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
-- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
-- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
-- set bridge br-int fail-mode=secure other-config:disable-in-band=true
# Start ovn-controller
start_daemon ovn-controller
# Logical network:
# Two LRs - R1 and R2 that are connected to each other via LS "join"
# in 20.0.0.0/24 network. R1 has switchess foo (192.168.1.0/24) connected
# to it. R2 has alice (172.16.1.0/24) connected to it.
# R2 is a gateway router on which we add NAT rules.
#
# foo -- R1 -- join - R2 -- alice
ovn-nbctl lr-add R1
ovn-nbctl lr-add R2 -- set Logical_Router R2 options:chassis=hv1
ovn-nbctl ls-add foo
ovn-nbctl ls-add alice
ovn-nbctl ls-add join
ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24
ovn-nbctl lrp-add R2 alice 00:00:02:01:02:03 172.16.1.1/24
ovn-nbctl lrp-add R1 R1_join 00:00:04:01:02:03 20.0.0.1/24
ovn-nbctl lrp-add R2 R2_join 00:00:04:01:02:04 20.0.0.2/24
# Connect foo to R1
ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \
type=router options:router-port=foo addresses=\"00:00:01:01:02:03\"
# Connect alice to R2
ovn-nbctl lsp-add alice rp-alice -- set Logical_Switch_Port rp-alice \
type=router options:router-port=alice addresses=\"00:00:02:01:02:03\"
# Connect R1 to join
ovn-nbctl lsp-add join r1-join -- set Logical_Switch_Port r1-join \
type=router options:router-port=R1_join addresses='"00:00:04:01:02:03"'
# Connect R2 to join
ovn-nbctl lsp-add join r2-join -- set Logical_Switch_Port r2-join \
type=router options:router-port=R2_join addresses='"00:00:04:01:02:04"'
# Static routes.
ovn-nbctl lr-route-add R1 172.16.1.0/24 20.0.0.2
ovn-nbctl lr-route-add R2 192.168.0.0/16 20.0.0.1
# Logical port 'foo1' in switch 'foo'.
ADD_NAMESPACES(foo1)
ADD_VETH(foo1, foo1, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \
"192.168.1.1")
ovn-nbctl lsp-add foo foo1 \
-- lsp-set-addresses foo1 "f0:00:00:01:02:03 192.168.1.2"
# Logical port 'alice1' in switch 'alice'.
ADD_NAMESPACES(alice1)
ADD_VETH(alice1, alice1, br-int, "172.16.1.2/24", "f0:00:00:01:02:04", \
"172.16.1.1")
ovn-nbctl lsp-add alice alice1 \
-- lsp-set-addresses alice1 "f0:00:00:01:02:04 172.16.1.2"
# Add a SNAT rule
ovn-nbctl -- --id=@nat create nat type="snat" logical_ip=192.168.1.2 \
external_ip=172.16.1.1 -- add logical_router R2 nat @nat
ovn-nbctl --wait=hv sync
OVS_WAIT_UNTIL([ovs-ofctl dump-flows br-int | grep 'nat(src=172.16.1.1)'])
# South-North SNAT: 'foo1' pings 'alice1'. But 'alice1' receives traffic
# from 172.16.1.1
NS_CHECK_EXEC([foo1], [ping -q -c 3 -i 0.3 -w 2 172.16.1.2 | FORMAT_PING], \
[0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
# We verify that SNAT indeed happened via 'dump-conntrack' command.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(172.16.1.1) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=192.168.1.2,dst=172.16.1.2,id=<cleared>,type=8,code=0),reply=(src=172.16.1.2,dst=172.16.1.1,id=<cleared>,type=0,code=0),zone=<cleared>
])
OVS_APP_EXIT_AND_WAIT([ovn-controller])
as ovn-sb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as ovn-nb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as northd
OVS_APP_EXIT_AND_WAIT([ovn-northd])
as
OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
/connection dropped.*/d"])
AT_CLEANUP
AT_SETUP([ovn -- multiple gateway routers, SNAT and DNAT])
AT_KEYWORDS([ovnnat])
CHECK_CONNTRACK()
CHECK_CONNTRACK_NAT()
ovn_start
OVS_TRAFFIC_VSWITCHD_START()
ADD_BR([br-int])
# Set external-ids in br-int needed for ovn-controller
ovs-vsctl \
-- set Open_vSwitch . external-ids:system-id=hv1 \
-- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
-- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
-- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
-- set bridge br-int fail-mode=secure other-config:disable-in-band=true
# Start ovn-controller
start_daemon ovn-controller
# Logical network:
# Three LRs - R1, R2 and R3 that are connected to each other via LS "join"
# in 20.0.0.0/24 network. R1 has switchess foo (192.168.1.0/24) and
# bar (192.168.2.0/24) connected to it. R2 has alice (172.16.1.0/24) connected
# to it. R3 has bob (172.16.1.0/24) connected to it. Note how both alice and
# bob have the same subnet behind it. We are trying to simulate external
# network via those 2 switches. In real world the switch ports of these
# switches will have addresses set as "unknown" to make them learning switches.
# Or those switches will be "localnet" ones.
#
# foo -- R1 -- join - R2 -- alice
# | |
# bar ---- - R3 --- bob
ovn-nbctl create Logical_Router name=R1
ovn-nbctl create Logical_Router name=R2 options:chassis=hv1
ovn-nbctl create Logical_Router name=R3 options:chassis=hv1
ovn-nbctl ls-add foo
ovn-nbctl ls-add bar
ovn-nbctl ls-add alice
ovn-nbctl ls-add bob
ovn-nbctl ls-add join
# Connect foo to R1
ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24
ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \
type=router options:router-port=foo addresses=\"00:00:01:01:02:03\"
# Connect bar to R1
ovn-nbctl lrp-add R1 bar 00:00:01:01:02:04 192.168.2.1/24
ovn-nbctl lsp-add bar rp-bar -- set Logical_Switch_Port rp-bar \
type=router options:router-port=bar addresses=\"00:00:01:01:02:04\"
# Connect alice to R2
ovn-nbctl lrp-add R2 alice 00:00:02:01:02:03 172.16.1.1/24
ovn-nbctl lsp-add alice rp-alice -- set Logical_Switch_Port rp-alice \
type=router options:router-port=alice addresses=\"00:00:02:01:02:03\"
# Connect bob to R3
ovn-nbctl lrp-add R3 bob 00:00:03:01:02:03 172.16.1.2/24
ovn-nbctl lsp-add bob rp-bob -- set Logical_Switch_Port rp-bob \
type=router options:router-port=bob addresses=\"00:00:03:01:02:03\"
# Connect R1 to join
ovn-nbctl lrp-add R1 R1_join 00:00:04:01:02:03 20.0.0.1/24
ovn-nbctl lsp-add join r1-join -- set Logical_Switch_Port r1-join \
type=router options:router-port=R1_join addresses='"00:00:04:01:02:03"'
# Connect R2 to join
ovn-nbctl lrp-add R2 R2_join 00:00:04:01:02:04 20.0.0.2/24
ovn-nbctl lsp-add join r2-join -- set Logical_Switch_Port r2-join \
type=router options:router-port=R2_join addresses='"00:00:04:01:02:04"'
# Connect R3 to join
ovn-nbctl lrp-add R3 R3_join 00:00:04:01:02:05 20.0.0.3/24
ovn-nbctl lsp-add join r3-join -- set Logical_Switch_Port r3-join \
type=router options:router-port=R3_join addresses='"00:00:04:01:02:05"'
# Install static routes with source ip address as the policy for routing.
# We want traffic from 'foo' to go via R2 and traffic of 'bar' to go via R3.
ovn-nbctl --policy="src-ip" lr-route-add R1 192.168.1.0/24 20.0.0.2
ovn-nbctl --policy="src-ip" lr-route-add R1 192.168.2.0/24 20.0.0.3
# Static routes.
ovn-nbctl lr-route-add R2 192.168.0.0/16 20.0.0.1
ovn-nbctl lr-route-add R3 192.168.0.0/16 20.0.0.1
# For gateway routers R2 and R3, set a force SNAT rule.
ovn-nbctl set logical_router R2 options:dnat_force_snat_ip=20.0.0.2
ovn-nbctl set logical_router R3 options:dnat_force_snat_ip=20.0.0.3
# Logical port 'foo1' in switch 'foo'.
ADD_NAMESPACES(foo1)
ADD_VETH(foo1, foo1, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \
"192.168.1.1")
ovn-nbctl lsp-add foo foo1 \
-- lsp-set-addresses foo1 "f0:00:00:01:02:03 192.168.1.2"
# Logical port 'alice1' in switch 'alice'.
ADD_NAMESPACES(alice1)
ADD_VETH(alice1, alice1, br-int, "172.16.1.3/24", "f0:00:00:01:02:04", \
"172.16.1.1")
ovn-nbctl lsp-add alice alice1 \
-- lsp-set-addresses alice1 "f0:00:00:01:02:04 172.16.1.3"
# Logical port 'bar1' in switch 'bar'.
ADD_NAMESPACES(bar1)
ADD_VETH(bar1, bar1, br-int, "192.168.2.2/24", "f0:00:00:01:02:05", \
"192.168.2.1")
ovn-nbctl lsp-add bar bar1 \
-- lsp-set-addresses bar1 "f0:00:00:01:02:05 192.168.2.2"
# Logical port 'bob1' in switch 'bob'.
ADD_NAMESPACES(bob1)
ADD_VETH(bob1, bob1, br-int, "172.16.1.4/24", "f0:00:00:01:02:06", \
"172.16.1.2")
ovn-nbctl lsp-add bob bob1 \
-- lsp-set-addresses bob1 "f0:00:00:01:02:06 172.16.1.4"
# Router R2
# Add a DNAT rule.
ovn-nbctl -- --id=@nat create nat type="dnat" logical_ip=192.168.1.2 \
external_ip=30.0.0.2 -- add logical_router R2 nat @nat
# Add a SNAT rule
ovn-nbctl -- --id=@nat create nat type="snat" logical_ip=192.168.1.2 \
external_ip=30.0.0.1 -- add logical_router R2 nat @nat
# Router R3
# Add a DNAT rule.
ovn-nbctl -- --id=@nat create nat type="dnat" logical_ip=192.168.1.2 \
external_ip=30.0.0.3 -- add logical_router R3 nat @nat
# Add a SNAT rule
ovn-nbctl -- --id=@nat create nat type="snat" logical_ip=192.168.2.2 \
external_ip=30.0.0.4 -- add logical_router R3 nat @nat
# wait for ovn-controller to catch up.
ovn-nbctl --wait=hv sync
OVS_WAIT_UNTIL([ovs-ofctl dump-flows br-int | grep 'nat(src=30.0.0.4)'])
# North-South DNAT: 'alice1' should be able to ping 'foo1' via 30.0.0.2
NS_CHECK_EXEC([alice1], [ping -q -c 3 -i 0.3 -w 2 30.0.0.2 | FORMAT_PING], \
[0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
# Check conntrack entries.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(172.16.1.3) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=172.16.1.3,dst=30.0.0.2,id=<cleared>,type=8,code=0),reply=(src=192.168.1.2,dst=172.16.1.3,id=<cleared>,type=0,code=0),zone=<cleared>
])
# But foo1 should receive traffic from 20.0.0.2
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(20.0.0.2) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=172.16.1.3,dst=192.168.1.2,id=<cleared>,type=8,code=0),reply=(src=192.168.1.2,dst=20.0.0.2,id=<cleared>,type=0,code=0),zone=<cleared>
])
# North-South DNAT: 'bob1' should be able to ping 'foo1' via 30.0.0.3
NS_CHECK_EXEC([bob1], [ping -q -c 3 -i 0.3 -w 2 30.0.0.3 | FORMAT_PING], \
[0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
# Check conntrack entries.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(172.16.1.4) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=172.16.1.4,dst=30.0.0.3,id=<cleared>,type=8,code=0),reply=(src=192.168.1.2,dst=172.16.1.4,id=<cleared>,type=0,code=0),zone=<cleared>
])
# But foo1 should receive traffic from 20.0.0.3
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(20.0.0.3) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=172.16.1.4,dst=192.168.1.2,id=<cleared>,type=8,code=0),reply=(src=192.168.1.2,dst=20.0.0.3,id=<cleared>,type=0,code=0),zone=<cleared>
])
# South-North SNAT: 'bar1' pings 'bob1'. But 'bob1' receives traffic
# from 30.0.0.4
NS_CHECK_EXEC([bar1], [ping -q -c 3 -i 0.3 -w 2 172.16.1.4 | FORMAT_PING], \
[0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
# We verify that SNAT indeed happened via 'dump-conntrack' command.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.4) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=192.168.2.2,dst=172.16.1.4,id=<cleared>,type=8,code=0),reply=(src=172.16.1.4,dst=30.0.0.4,id=<cleared>,type=0,code=0),zone=<cleared>
])
# South-North SNAT: 'foo1' pings 'alice1'. But 'alice1' receives traffic
# from 30.0.0.1
NS_CHECK_EXEC([foo1], [ping -q -c 3 -i 0.3 -w 2 172.16.1.3 | FORMAT_PING], \
[0], [dnl
3 packets transmitted, 3 received, 0% packet loss, time 0ms
])
# We verify that SNAT indeed happened via 'dump-conntrack' command.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
icmp,orig=(src=192.168.1.2,dst=172.16.1.3,id=<cleared>,type=8,code=0),reply=(src=172.16.1.3,dst=30.0.0.1,id=<cleared>,type=0,code=0),zone=<cleared>
])
OVS_APP_EXIT_AND_WAIT([ovn-controller])
as ovn-sb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as ovn-nb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as northd
OVS_APP_EXIT_AND_WAIT([ovn-northd])
as
OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
/connection dropped.*/d"])
AT_CLEANUP
AT_SETUP([ovn -- load-balancing])
AT_KEYWORDS([ovnlb])
CHECK_CONNTRACK()
CHECK_CONNTRACK_NAT()
ovn_start
OVS_TRAFFIC_VSWITCHD_START()
ADD_BR([br-int])
# Set external-ids in br-int needed for ovn-controller
ovs-vsctl \
-- set Open_vSwitch . external-ids:system-id=hv1 \
-- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
-- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
-- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
-- set bridge br-int fail-mode=secure other-config:disable-in-band=true
# Start ovn-controller
start_daemon ovn-controller
# Logical network:
# 2 logical switches "foo" (192.168.1.0/24) and "bar" (172.16.1.0/24)
# connected to a router R1.
# foo has foo1 to act as a client.
# bar has bar1, bar2, bar3 to act as servers.
#
# Loadbalancer VIPs in 30.0.0.0/24 network.
ovn-nbctl create Logical_Router name=R1
ovn-nbctl ls-add foo
ovn-nbctl ls-add bar
# Connect foo to R1
ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24
ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \
type=router options:router-port=foo addresses=\"00:00:01:01:02:03\"
# Connect bar to R1
ovn-nbctl lrp-add R1 bar 00:00:01:01:02:04 172.16.1.1/24
ovn-nbctl lsp-add bar rp-bar -- set Logical_Switch_Port rp-bar \
type=router options:router-port=bar addresses=\"00:00:01:01:02:04\"
# Create logical port 'foo1' in switch 'foo'.
ADD_NAMESPACES(foo1)
ADD_VETH(foo1, foo1, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \
"192.168.1.1")
ovn-nbctl lsp-add foo foo1 \
-- lsp-set-addresses foo1 "f0:00:00:01:02:03 192.168.1.2"
# Create logical ports 'bar1', 'bar2', 'bar3' in switch 'bar'.
ADD_NAMESPACES(bar1)
ADD_VETH(bar1, bar1, br-int, "172.16.1.2/24", "f0:00:0f:01:02:03", \
"172.16.1.1")
ovn-nbctl lsp-add bar bar1 \
-- lsp-set-addresses bar1 "f0:00:0f:01:02:03 172.16.1.2"
ADD_NAMESPACES(bar2)
ADD_VETH(bar2, bar2, br-int, "172.16.1.3/24", "f0:00:0f:01:02:04", \
"172.16.1.1")
ovn-nbctl lsp-add bar bar2 \
-- lsp-set-addresses bar2 "f0:00:0f:01:02:04 172.16.1.3"
ADD_NAMESPACES(bar3)
ADD_VETH(bar3, bar3, br-int, "172.16.1.4/24", "f0:00:0f:01:02:05", \
"172.16.1.1")
ovn-nbctl lsp-add bar bar3 \
-- lsp-set-addresses bar3 "f0:00:0f:01:02:05 172.16.1.4"
# Config OVN load-balancer with a VIP.
uuid=`ovn-nbctl create load_balancer vips:30.0.0.1="172.16.1.2,172.16.1.3,172.16.1.4"`
ovn-nbctl set logical_switch foo load_balancer=$uuid
# Create another load-balancer with another VIP.
uuid=`ovn-nbctl create load_balancer vips:30.0.0.3="172.16.1.2,172.16.1.3,172.16.1.4"`
ovn-nbctl add logical_switch foo load_balancer $uuid
# Config OVN load-balancer with another VIP (this time with ports).
ovn-nbctl set load_balancer $uuid vips:'"30.0.0.2:8000"'='"172.16.1.2:80,172.16.1.3:80,172.16.1.4:80"'
# Wait for ovn-controller to catch up.
ovn-nbctl --wait=hv sync
OVS_WAIT_UNTIL([ovs-ofctl -O OpenFlow13 dump-groups br-int | \
grep 'nat(dst=172.16.1.4:80)'])
# Start webservers in 'bar1', 'bar2' and 'bar3'.
OVS_START_L7([bar1], [http])
OVS_START_L7([bar2], [http])
OVS_START_L7([bar3], [http])
dnl Should work with the virtual IP 30.0.0.1 address through NAT
for i in `seq 1 20`; do
echo Request $i
NS_CHECK_EXEC([foo1], [wget 30.0.0.1 -t 5 -T 1 --retry-connrefused -v -o wget$i.log])
done
dnl Each server should have at least one connection.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.2,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.3,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.4,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
])
dnl Should work with the virtual IP 30.0.0.3 address through NAT
for i in `seq 1 20`; do
echo Request $i
NS_CHECK_EXEC([foo1], [wget 30.0.0.3 -t 5 -T 1 --retry-connrefused -v -o wget$i.log])
done
dnl Each server should have at least one connection.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.3) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
tcp,orig=(src=192.168.1.2,dst=30.0.0.3,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.2,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.3,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.3,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.3,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.4,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
])
dnl Test load-balancing that includes L4 ports in NAT.
for i in `seq 1 20`; do
echo Request $i
NS_CHECK_EXEC([foo1], [wget 30.0.0.2:8000 -t 5 -T 1 --retry-connrefused -v -o wget$i.log])
done
dnl Each server should have at least one connection.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.2) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.2,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.3,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=172.16.1.4,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
])
OVS_APP_EXIT_AND_WAIT([ovn-controller])
as ovn-sb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as ovn-nb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as northd
OVS_APP_EXIT_AND_WAIT([ovn-northd])
as
OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d"])
AT_CLEANUP
AT_SETUP([ovn -- load-balancing - same subnet.])
AT_KEYWORDS([ovnlb])
CHECK_CONNTRACK()
CHECK_CONNTRACK_NAT()
ovn_start
OVS_TRAFFIC_VSWITCHD_START()
ADD_BR([br-int])
# Set external-ids in br-int needed for ovn-controller
ovs-vsctl \
-- set Open_vSwitch . external-ids:system-id=hv1 \
-- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
-- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
-- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
-- set bridge br-int fail-mode=secure other-config:disable-in-band=true
# Start ovn-controller
start_daemon ovn-controller
# Logical network:
# 1 logical switch "foo" (192.168.1.0/24) connected to router R1.
# foo has foo1, foo2, foo3, foo4 as logical ports.
#
# Loadbalancer VIPs in 30.0.0.0/24 network. Router is needed for default
# gateway. We will test load-balancing with foo1 as a client and foo2, foo3 and
# foo4 as servers.
ovn-nbctl create Logical_Router name=R1
ovn-nbctl ls-add foo
# Connect foo to R1
ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24
ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \
type=router options:router-port=foo addresses=\"00:00:01:01:02:03\"
# Create logical port 'foo1', 'foo2', 'foo3' and 'foo4' in switch 'foo'.
ADD_NAMESPACES(foo1, foo2, foo3, foo4)
for i in `seq 1 4`; do
j=`expr $i + 1`
ADD_VETH(foo$i, foo$i, br-int, "192.168.1.$j/24", "f0:00:00:01:02:0$j", \
"192.168.1.1")
ovn-nbctl lsp-add foo foo$i \
-- lsp-set-addresses foo$i "f0:00:00:01:02:0$j 192.168.1.$j"
done
# Config OVN load-balancer with a VIP.
uuid=`ovn-nbctl create load_balancer vips:30.0.0.1="192.168.1.3,192.168.1.4,192.168.1.5"`
ovn-nbctl set logical_switch foo load_balancer=$uuid
# Config OVN load-balancer with another VIP (this time with ports).
ovn-nbctl set load_balancer $uuid vips:'"30.0.0.2:8000"'='"192.168.1.3:80,192.168.1.4:80,192.168.1.5:80"'
# Wait for ovn-controller to catch up.
ovn-nbctl --wait=hv sync
OVS_WAIT_UNTIL([ovs-ofctl -O OpenFlow13 dump-groups br-int | \
grep 'nat(dst=192.168.1.5:80)'])
# Start webservers in 'foo2', 'foo3' and 'foo4'.
OVS_START_L7([foo2], [http])
OVS_START_L7([foo3], [http])
OVS_START_L7([foo4], [http])
dnl Should work with the virtual IP address through NAT
for i in `seq 1 20`; do
echo Request $i
NS_CHECK_EXEC([foo1], [wget 30.0.0.1 -t 5 -T 1 --retry-connrefused -v -o wget$i.log])
done
dnl Each server should have at least one connection.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.3,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.4,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.5,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
])
dnl Test load-balancing that includes L4 ports in NAT.
for i in `seq 1 20`; do
echo Request $i
NS_CHECK_EXEC([foo1], [wget 30.0.0.2:8000 -t 5 -T 1 --retry-connrefused -v -o wget$i.log])
done
dnl Each server should have at least one connection.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.2) | \
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.3,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.4,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=192.168.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.5,dst=192.168.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
])
OVS_APP_EXIT_AND_WAIT([ovn-controller])
as ovn-sb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as ovn-nb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as northd
OVS_APP_EXIT_AND_WAIT([ovn-northd])
as
OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d"])
AT_CLEANUP
AT_SETUP([ovn -- load balancing in gateway router])
AT_KEYWORDS([ovnlb])
CHECK_CONNTRACK()
CHECK_CONNTRACK_NAT()
ovn_start
OVS_TRAFFIC_VSWITCHD_START()
ADD_BR([br-int])
# Set external-ids in br-int needed for ovn-controller
ovs-vsctl \
-- set Open_vSwitch . external-ids:system-id=hv1 \
-- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
-- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
-- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
-- set bridge br-int fail-mode=secure other-config:disable-in-band=true
# Start ovn-controller
start_daemon ovn-controller
# Logical network:
# Two LRs - R1 and R2 that are connected to each other via LS "join"
# in 20.0.0.0/24 network. R1 has switchess foo (192.168.1.0/24) and
# bar (192.168.2.0/24) connected to it. R2 has alice (172.16.1.0/24) connected
# to it. R2 is a gateway router on which we add load-balancing rules.
#
# foo -- R1 -- join - R2 -- alice
# |
# bar ----
ovn-nbctl create Logical_Router name=R1
ovn-nbctl create Logical_Router name=R2 options:chassis=hv1
ovn-nbctl ls-add foo
ovn-nbctl ls-add bar
ovn-nbctl ls-add alice
ovn-nbctl ls-add join
# Connect foo to R1
ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24
ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \
type=router options:router-port=foo addresses=\"00:00:01:01:02:03\"
# Connect bar to R1
ovn-nbctl lrp-add R1 bar 00:00:01:01:02:04 192.168.2.1/24
ovn-nbctl lsp-add bar rp-bar -- set Logical_Switch_Port rp-bar \
type=router options:router-port=bar addresses=\"00:00:01:01:02:04\"
# Connect alice to R2
ovn-nbctl lrp-add R2 alice 00:00:02:01:02:03 172.16.1.1/24
ovn-nbctl lsp-add alice rp-alice -- set Logical_Switch_Port rp-alice \
type=router options:router-port=alice addresses=\"00:00:02:01:02:03\"
# Connect R1 to join
ovn-nbctl lrp-add R1 R1_join 00:00:04:01:02:03 20.0.0.1/24
ovn-nbctl lsp-add join r1-join -- set Logical_Switch_Port r1-join \
type=router options:router-port=R1_join addresses='"00:00:04:01:02:03"'
# Connect R2 to join
ovn-nbctl lrp-add R2 R2_join 00:00:04:01:02:04 20.0.0.2/24
ovn-nbctl lsp-add join r2-join -- set Logical_Switch_Port r2-join \
type=router options:router-port=R2_join addresses='"00:00:04:01:02:04"'
# Static routes.
ovn-nbctl lr-route-add R1 172.16.1.0/24 20.0.0.2
ovn-nbctl lr-route-add R2 192.168.0.0/16 20.0.0.1
# Logical port 'foo1' in switch 'foo'.
ADD_NAMESPACES(foo1)
ADD_VETH(foo1, foo1, br-int, "192.168.1.2/24", "f0:00:00:01:02:03", \
"192.168.1.1")
ovn-nbctl lsp-add foo foo1 \
-- lsp-set-addresses foo1 "f0:00:00:01:02:03 192.168.1.2"
# Logical port 'alice1' in switch 'alice'.
ADD_NAMESPACES(alice1)
ADD_VETH(alice1, alice1, br-int, "172.16.1.2/24", "f0:00:00:01:02:04", \
"172.16.1.1")
ovn-nbctl lsp-add alice alice1 \
-- lsp-set-addresses alice1 "f0:00:00:01:02:04 172.16.1.2"
# Logical port 'bar1' in switch 'bar'.
ADD_NAMESPACES(bar1)
ADD_VETH(bar1, bar1, br-int, "192.168.2.2/24", "f0:00:00:01:02:05", \
"192.168.2.1")
ovn-nbctl lsp-add bar bar1 \
-- lsp-set-addresses bar1 "f0:00:00:01:02:05 192.168.2.2"
# Config OVN load-balancer with a VIP.
uuid=`ovn-nbctl create load_balancer vips:30.0.0.1="192.168.1.2,192.168.2.2"`
ovn-nbctl set logical_router R2 load_balancer=$uuid
# Config OVN load-balancer with another VIP (this time with ports).
ovn-nbctl set load_balancer $uuid vips:'"30.0.0.2:8000"'='"192.168.1.2:80,192.168.2.2:80"'
# Wait for ovn-controller to catch up.
ovn-nbctl --wait=hv sync
OVS_WAIT_UNTIL([ovs-ofctl -O OpenFlow13 dump-groups br-int | \
grep 'nat(dst=192.168.2.2:80)'])
# Start webservers in 'foo1', 'bar1'.
OVS_START_L7([foo1], [http])
OVS_START_L7([bar1], [http])
dnl Should work with the virtual IP address through NAT
for i in `seq 1 20`; do
echo Request $i
NS_CHECK_EXEC([alice1], [wget 30.0.0.1 -t 5 -T 1 --retry-connrefused -v -o wget$i.log])
done
dnl Each server should have at least one connection.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.1) |
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
tcp,orig=(src=172.16.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.2,dst=172.16.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=172.16.1.2,dst=30.0.0.1,sport=<cleared>,dport=<cleared>),reply=(src=192.168.2.2,dst=172.16.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
])
dnl Test load-balancing that includes L4 ports in NAT.
for i in `seq 1 20`; do
echo Request $i
NS_CHECK_EXEC([alice1], [wget 30.0.0.2:8000 -t 5 -T 1 --retry-connrefused -v -o wget$i.log])
done
dnl Each server should have at least one connection.
AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(30.0.0.2) |
sed -e 's/zone=[[0-9]]*/zone=<cleared>/'], [0], [dnl
tcp,orig=(src=172.16.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=192.168.1.2,dst=172.16.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
tcp,orig=(src=172.16.1.2,dst=30.0.0.2,sport=<cleared>,dport=<cleared>),reply=(src=192.168.2.2,dst=172.16.1.2,sport=<cleared>,dport=<cleared>),zone=<cleared>,protoinfo=(state=<cleared>)
])
OVS_APP_EXIT_AND_WAIT([ovn-controller])
as ovn-sb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as ovn-nb
OVS_APP_EXIT_AND_WAIT([ovsdb-server])
as northd
OVS_APP_EXIT_AND_WAIT([ovn-northd])
as
OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
/connection dropped.*/d"])
AT_CLEANUP
AT_SETUP([ovn -- multiple gateway routers, load-balancing])
AT_KEYWORDS([ovnlb])
CHECK_CONNTRACK()
CHECK_CONNTRACK_NAT()
ovn_start
OVS_TRAFFIC_VSWITCHD_START()
ADD_BR([br-int])
# Set external-ids in br-int needed for ovn-controller
ovs-vsctl \
-- set Open_vSwitch . external-ids:system-id=hv1 \
-- set Open_vSwitch . external-ids:ovn-remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
-- set Open_vSwitch . external-ids:ovn-encap-type=geneve \
-- set Open_vSwitch . external-ids:ovn-encap-ip=169.0.0.1 \
-- set bridge br-int fail-mode=secure other-config:disable-in-band=true
# Start ovn-controller
start_daemon ovn-controller
# Logical network:
# Three LRs - R1, R2 and R3 that are connected to each other via LS "join"
# in 20.0.0.0/24 network. R1 has switchess foo (192.168.1.0/24) and
# bar (192.168.2.0/24) connected to it. R2 has alice (172.16.1.0/24) connected
# to it. R3 has bob (172.16.1.0/24) connected to it. Note how both alice and
# bob have the same subnet behind it. We are trying to simulate external
# network via those 2 switches. In real world the switch ports of these
# switches will have addresses set as "unknown" to make them learning switches.
# Or those switches will be "localnet" ones.
#
# foo -- R1 -- join - R2 -- alice
# | |
# bar ---- - R3 --- bob
ovn-nbctl create Logical_Router name=R1
ovn-nbctl create Logical_Router name=R2 options:chassis=hv1
ovn-nbctl create Logical_Router name=R3 options:chassis=hv1
ovn-nbctl ls-add foo
ovn-nbctl ls-add bar
ovn-nbctl ls-add alice
ovn-nbctl ls-add bob
ovn-nbctl ls-add join
# Connect foo to R1
ovn-nbctl lrp-add R1 foo 00:00:01:01:02:03 192.168.1.1/24
ovn-nbctl lsp-add foo rp-foo -- set Logical_Switch_Port rp-foo \
type=router options:router-port=foo addresses=\"00:00:01:01:02:03\"
# Connect bar to R1
ovn-nbctl lrp-add R1 bar 00:00:01:01:02:04 192.168.2.1/24
ovn-nbctl lsp-add bar rp-bar -- set Logical_Switch_Port rp-bar \
type=router options:router-port=bar addresses=\"00:00:01:01:02:04\"
# Connect alice to R2
ovn-nbctl lrp-add R2 alice 00:00:02:01:02:03 172.16.1.1/24
ovn-nbctl lsp-add alice rp-alice -- set Logical_Switch_Port rp-alice \
type=router options:router-port=alice addresses=\"00:00:02:01:02:03\"
# Connect bob to R3
ovn-nbctl lrp-add R3 bob 00:00:03:01:02:03 172.16.1.2/24
ovn-nbctl lsp-add bob rp-bob -- set Logical_Switch_Port rp-bob \
type=router options:router-port=bob addresses=\"00:00:03:01:02:03\"
# Connect R1 to join
ovn-nbctl lrp-add R1 R1_join 00:00:04:01:02:03 20.0.0.1/24
ovn-nbctl lsp-add join r1-join -- set Logical_Switch_Port r1-join \
type=router options:router-port=R1_join addresses='"00:00:04:01:02:03"'
# Connect R2 to join
ovn-nbctl lrp-add R2 R2_join 00:00:04:01:02:04 20.0.0.2/24
ovn-nbctl lsp-add join r2-join -- set Logical_Switch_Port r2-join \
type=router options:router-port=R2_join addresses='"00:00:04:01:02:04"'
# Connect R3 to join
ovn-nbctl lrp-add R3 R3_join 00:00:04:01:02:05 20.0.0.3/24
ovn-nbctl lsp-add join r3-join -- set Logical_Switch_Port r3-join \
type=router options:router-port=R3_join addresses='"00:00:04:01:02:05"'
# Install static routes with source ip address as the policy for routing.
# We want traffic from 'foo' to go via R2 and traffic of 'bar' to go via R3.
ovn-nbctl --policy="src-ip" lr-route-add R1 192.168.1.0/24 20.0.0.2
ovn-nbctl --policy="src-ip" lr-route-add R1 192.168.2.0/24 20.0.0.3
# Static routes.
ovn-nbctl lr-route-add R2 192.168.0.0/16 20.0.0.1
ovn-nbctl lr-route-add R3 192.168.0.0/16 20.0.0.1
# For gateway routers R2 and R3, set a force SNAT rule.
ovn-nbctl set logical_router R2 options:lb_force_snat_ip=20.0.0.2
ovn-nbctl set logical_router R3 options:lb_force_snat_ip=20.0.0.3