[ovs-discuss] [ovn] help with creating logical topology with l3 gateway

[Moshe Levi]

Hi all,
I trying to create logical topology with l3 gateway.
I have create the following logical topology:
I able to ping from ns to 100.64.0.1 but it failed to ping 100.64.0.2 (port on the gw-worker1).
Below I pasted the command I am using. Can you help me understand what is missing or what I doing wrong?

         ____|____
        |  router | gw-worker1
         ---------      port 'gw-worker1-join':    100.64.0.2/16
         ____|____
        |  switch | join  100.64.0.0/16
         ---------
         ____|____
        |  router | join-router port 'join-router-ls-join':  100.64.0.1/16
         ---------          port 'join-router-worker1-net': 10.0.1.1/24
             |
         ____|____
        |  switch | join-router 10.0.1.0/24
         ---------
         /
 _______/_
|  ns    |
 ---------


## worker 1 - worker1-net
ovn-nbctl ls-add worker1-net
ovn-nbctl lsp-add worker1-net vm1
ovn-nbctl lsp-set-addresses vm1 "40:44:00:00:00:01 10.0.1.2"



## create join router
ovn-nbctl lr-add join-router

## create router port to connect
ovn-nbctl lrp-add join-router join-router-worker1-net 40:44:00:00:00:03 10.0.1.1/24
ovn-nbctl lrp-add join-router join-router-worker2-net 40:44:00:00:00:04 10.0.2.1/24


## create the 'worker1-net' switch port for connection to 'join-router'
ovn-nbctl lsp-add worker1-net worker1-net-join-router
ovn-nbctl lsp-set-type worker1-net-join-router  router
ovn-nbctl lsp-set-addresses worker1-net-join-router  router
ovn-nbctl lsp-set-options worker1-net-join-router  router-port=join-router-worker1-net




#worker 1
ovs-vsctl add-port br-int vm1 -- set Interface vm1 type=internal -- set Interface vm1 external_ids:iface-id=vm1
ip netns add vm1
ip link set vm1 netns vm1
ip netns exec vm1 ip link set vm1 address 40:44:00:00:00:01
ip netns exec vm1 ip addr add 10.0.1.2/24 dev vm1
ip netns exec vm1 ip link set vm1 up
ip netns exec vm1 ip route add default via 10.0.1.1




# create gw-worker1
ovn-nbctl create Logical_Router name=gw-worker1 options:chassis=9a790be7-a876-48a9-b7c5-1c45c6946dd4


# create a new logical switch for connecting the 'gw-worker1' and 'join-router' routers
ovn-nbctl ls-add join

# connect 'gw-worker1' to the 'join' switch
ovn-nbctl lrp-add gw-worker1 gw-worker1-join 40:44:00:00:00:07 100.64.0.2/16
ovn-nbctl lsp-add join join-gw-worker1
ovn-nbctl lsp-set-type join-gw-worker1 router
ovn-nbctl lsp-set-addresses join-gw-worker1 router
ovn-nbctl lsp-set-options join-gw-worker1 router-port=gw-worker1-join


# connect 'join-router' to the 'join' switch
ovn-nbctl lrp-add join-router join-router-ls-join 40:44:00:00:00:06 100.64.0.1/16
ovn-nbctl lsp-add join ls-join-router-join
ovn-nbctl lsp-set-type ls-join-router-join router
ovn-nbctl lsp-set-addresses ls-join-router-join router
ovn-nbctl lsp-set-options ls-join-router-join router-port=join-router-ls-join

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