[FROG] simple frr ospf example setup

[Moritz Warning]

Hi,

I am a newbie with frr/ospf. My aim is to run two ospfd instances in a Linux network namesspace each and let them talk to each other via a virtual link (interface called uplink).

My test setup is attached. But I do not see any traffic. This is probably some basic configuration error. I did have a look at the documentation, but it did not seem to cover such simple setups.
A few pointer in the right direction would be helpful.

thanks,
mwarning


$ ip netns add ns-0
$ ip netns add ns-1

# Node 0:

$ sudo ip netns exec ns-0 ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
4: uplink at if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether ce:e6:b3:5d:d3:70 brd ff:ff:ff:ff:ff:ff link-netns switch
    inet 192.168.1.0/24 scope global uplink
       valid_lft forever preferred_lft forever
    inet6 fe80::cce6:b3ff:fe5d:d370/64 scope link
       valid_lft forever preferred_lft forever

$ cat ospf0.conf
router ospf
ospf router-id 192.168.1.0
network 192.168.1.0/24 area 1

$ sudo ip netns exec ns-0 ospfd --terminal -f ./ospf0.conf -i /run/frr/ospfd0.pid


# Node 1:

$ sudo ip netns exec ns-1 ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
7: uplink at if6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 12:45:ca:46:19:52 brd ff:ff:ff:ff:ff:ff link-netns switch
    inet 192.168.1.1/24 scope global uplink
       valid_lft forever preferred_lft forever
    inet6 fe80::1045:caff:fe46:1952/64 scope link
       valid_lft forever preferred_lft forever

$ cat ospf1.conf
router ospf
ospf router-id 192.168.1.1
network 192.168.1.0/24 area

$ sudo ip netns exec ns-1 ospfd --terminal -f ./ospf1.conf -i /run/frr/ospfd1.pid