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tests: add a topotest for ospf, mutli vrf, and route leaking
Test ospf running with 3 vrfs: default, neno, ray Route leaking is setup via bgp between default and neno vrfs Leaked routes include connected and ospf Included test: 1- OSPF convergnce 2- zebra/kernel routes Signed-off-by: Jafar Al-Gharaibeh <jafar@atcorp.com>
This commit is contained in:
Jafar Al-Gharaibeh
parent
4190587a3f
commit
f73b0cc825
0
tests/topotests/ospf_multi_vrf_bgp_route_leak/__init__.py
Executable file
0
tests/topotests/ospf_multi_vrf_bgp_route_leak/__init__.py
Executable file
57
tests/topotests/ospf_multi_vrf_bgp_route_leak/r1/frr.conf
Normal file
57
tests/topotests/ospf_multi_vrf_bgp_route_leak/r1/frr.conf
Normal file
@ -0,0 +1,57 @@
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!
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hostname r1
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password zebra
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log file /tmp/r1-frr.log
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!
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interface r1-eth0
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ip address 10.0.1.1/24
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!
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interface r1-eth1
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ip address 10.0.20.1/24
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!
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interface r1-eth2 vrf neno
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ip address 10.0.30.1/24
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!
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ip forwarding
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!
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router ospf
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ospf router-id 10.0.255.1
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redistribute bgp
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network 10.0.1.0/24 area 0
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network 10.0.20.0/24 area 0
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!
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router ospf vrf neno
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ospf router-id 10.0.255.1
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redistribute bgp
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network 10.0.30.0/24 area 0
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!
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!
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router bgp 99
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no bgp ebgp-requires-policy
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address-family ipv4 unicast
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redistribute connected
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redistribute ospf
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import vrf neno
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!
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!
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router bgp 99 vrf neno
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no bgp ebgp-requires-policy
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address-family ipv4 unicast
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redistribute connected
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redistribute ospf
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import vrf route-map rmap
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import vrf default
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!
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!
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!!!!!!!!!!!!!!!!!!!!!
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! VRFs neno and ray subnets
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ip prefix-list nets seq 5 permit 10.0.3.0/24
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ip prefix-list nets seq 10 permit 10.0.30.0/24
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ip prefix-list nets seq 15 permit 10.0.4.0/24
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ip prefix-list nets seq 20 permit 10.0.40.0/24
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ip prefix-list nets seq 25 deny any
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!
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route-map rmap permit 10
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match ip address prefix-list nets
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exit
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!
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@ -0,0 +1,19 @@
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VRF Name: default
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============ OSPF network routing table ============
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N 10.0.1.0/24 [10] area: 0.0.0.0
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directly attached to r1-eth0
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N 10.0.2.0/24 [20] area: 0.0.0.0
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via 10.0.20.2, r1-eth1
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N 10.0.20.0/24 [10] area: 0.0.0.0
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directly attached to r1-eth1
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============ OSPF router routing table =============
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R 10.0.255.2 [10] area: 0.0.0.0, ASBR
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via 10.0.20.2, r1-eth1
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============ OSPF external routing table ===========
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N E2 10.0.4.0/24 [10/20] tag: 0
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via 10.0.20.2, r1-eth1
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N E2 10.0.40.0/24 [10/20] tag: 0
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via 10.0.20.2, r1-eth1
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@ -0,0 +1,12 @@
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VRF Name: neno
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============ OSPF network routing table ============
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N 10.0.3.0/24 [20] area: 0.0.0.0
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via 10.0.30.3, r1-eth2
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N 10.0.30.0/24 [10] area: 0.0.0.0
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directly attached to r1-eth2
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============ OSPF router routing table =============
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R 10.0.255.3 [10] area: 0.0.0.0, ASBR
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via 10.0.30.3, r1-eth2
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============ OSPF external routing table ===========
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@ -0,0 +1,9 @@
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O 10.0.1.0/24 [110/10] is directly connected, r1-eth0, weight 1, XX:XX:XX
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C>* 10.0.1.0/24 is directly connected, r1-eth0, XX:XX:XX
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O>* 10.0.2.0/24 [110/20] via 10.0.20.2, r1-eth1, weight 1, XX:XX:XX
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B>* 10.0.3.0/24 [20/20] via 10.0.30.3, r1-eth2 (vrf neno), weight 1, XX:XX:XX
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O>* 10.0.4.0/24 [110/20] via 10.0.20.2, r1-eth1, weight 1, XX:XX:XX
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O 10.0.20.0/24 [110/10] is directly connected, r1-eth1, weight 1, XX:XX:XX
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C>* 10.0.20.0/24 is directly connected, r1-eth1, XX:XX:XX
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B>* 10.0.30.0/24 [20/0] is directly connected, r1-eth2 (vrf neno), weight 1, XX:XX:XX
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O>* 10.0.40.0/24 [110/20] via 10.0.20.2, r1-eth1, weight 1, XX:XX:XX
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@ -0,0 +1,6 @@
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VRF neno:
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O>* 10.0.3.0/24 [110/20] via 10.0.30.3, r1-eth2, weight 1, XX:XX:XX
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B>* 10.0.4.0/24 [20/20] via 10.0.20.2, r1-eth1 (vrf default), weight 1, XX:XX:XX
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O 10.0.30.0/24 [110/10] is directly connected, r1-eth2, weight 1, XX:XX:XX
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C>* 10.0.30.0/24 is directly connected, r1-eth2, XX:XX:XX
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B>* 10.0.40.0/24 [20/20] via 10.0.20.2, r1-eth1 (vrf default), weight 1, XX:XX:XX
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62
tests/topotests/ospf_multi_vrf_bgp_route_leak/r2/frr.conf
Normal file
62
tests/topotests/ospf_multi_vrf_bgp_route_leak/r2/frr.conf
Normal file
@ -0,0 +1,62 @@
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!
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hostname r2
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password zebra
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log file /tmp/r2-frr.log
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!
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interface r2-eth0
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ip address 10.0.2.2/24
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!
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interface r2-eth1
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ip address 10.0.20.2/24
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!
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ip route 0.0.0.0/0 10.0.20.1
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!
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interface r2-eth2 vrf ray
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ip address 10.0.40.2/24
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!
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ip forwarding
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!
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vrf ray
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ip protocol bgp route-map rmap
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exit-vrf
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!
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router ospf
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ospf router-id 10.0.255.2
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redistribute bgp
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network 10.0.2.0/24 area 0
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network 10.0.20.0/24 area 0
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!
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router ospf vrf ray
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ospf router-id 10.0.255.1
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redistribute bgp
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network 10.0.40.0/24 area 0
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!
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router bgp 99
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no bgp ebgp-requires-policy
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address-family ipv4 unicast
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redistribute connected
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redistribute ospf
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import vrf ray
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!
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!
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router bgp 99 vrf ray
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no bgp ebgp-requires-policy
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address-family ipv4 unicast
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redistribute connected
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redistribute ospf
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import vrf default
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!
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!
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!!!!!!!!!!!!!!!!!!!!!
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! VRFs neno and ray subnets
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ip prefix-list nets seq 5 permit 10.0.3.0/24
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ip prefix-list nets seq 10 permit 10.0.30.0/24
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ip prefix-list nets seq 15 permit 10.0.4.0/24
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ip prefix-list nets seq 20 permit 10.0.40.0/24
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ip prefix-list nets seq 25 deny any
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!
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route-map rmap permit 10
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match ip address prefix-list nets
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exit
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!
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@ -0,0 +1,20 @@
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VRF Name: default
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============ OSPF network routing table ============
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N 10.0.1.0/24 [20] area: 0.0.0.0
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via 10.0.20.1, r2-eth1
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N 10.0.2.0/24 [10] area: 0.0.0.0
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directly attached to r2-eth0
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N 10.0.20.0/24 [10] area: 0.0.0.0
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directly attached to r2-eth1
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============ OSPF router routing table =============
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R 10.0.255.1 [10] area: 0.0.0.0, ASBR
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via 10.0.20.1, r2-eth1
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============ OSPF external routing table ===========
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N E2 10.0.3.0/24 [10/20] tag: 0
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via 10.0.20.1, r2-eth1
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N E2 10.0.30.0/24 [10/20] tag: 0
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via 10.0.20.1, r2-eth1
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@ -0,0 +1,15 @@
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VRF Name: ray
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============ OSPF network routing table ============
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N 10.0.4.0/24 [20] area: 0.0.0.0
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via 10.0.40.4, r2-eth2
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N 10.0.40.0/24 [10] area: 0.0.0.0
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directly attached to r2-eth2
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============ OSPF router routing table =============
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R 10.0.255.4 [10] area: 0.0.0.0, ASBR
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via 10.0.40.4, r2-eth2
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============ OSPF external routing table ===========
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@ -0,0 +1,10 @@
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S>* 0.0.0.0/0 [1/0] via 10.0.20.1, r2-eth1, weight 1, XX:XX:XX
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O>* 10.0.1.0/24 [110/20] via 10.0.20.1, r2-eth1, weight 1, XX:XX:XX
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O 10.0.2.0/24 [110/10] is directly connected, r2-eth0, weight 1, XX:XX:XX
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C>* 10.0.2.0/24 is directly connected, r2-eth0, XX:XX:XX
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O>* 10.0.3.0/24 [110/20] via 10.0.20.1, r2-eth1, weight 1, XX:XX:XX
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B>* 10.0.4.0/24 [20/20] via 10.0.40.4, r2-eth2 (vrf ray), weight 1, XX:XX:XX
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O 10.0.20.0/24 [110/10] is directly connected, r2-eth1, weight 1, XX:XX:XX
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C>* 10.0.20.0/24 is directly connected, r2-eth1, XX:XX:XX
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O>* 10.0.30.0/24 [110/20] via 10.0.20.1, r2-eth1, weight 1, XX:XX:XX
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B>* 10.0.40.0/24 [20/0] is directly connected, r2-eth2 (vrf ray), weight 1, XX:XX:XX
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@ -0,0 +1,9 @@
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VRF ray:
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B 10.0.1.0/24 [20/20] via 10.0.20.1, r2-eth1 (vrf default) inactive, weight 1, XX:XX:XX
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B 10.0.2.0/24 [20/0] is directly connected, r2-eth0 (vrf default) inactive, weight 1, XX:XX:XX
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B>* 10.0.3.0/24 [20/20] via 10.0.20.1, r2-eth1 (vrf default), weight 1, XX:XX:XX
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O>* 10.0.4.0/24 [110/20] via 10.0.40.4, r2-eth2, weight 1, XX:XX:XX
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B 10.0.20.0/24 [20/0] is directly connected, r2-eth1 (vrf default) inactive, weight 1, XX:XX:XX
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B>* 10.0.30.0/24 [20/20] via 10.0.20.1, r2-eth1 (vrf default), weight 1, XX:XX:XX
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O 10.0.40.0/24 [110/10] is directly connected, r2-eth2, weight 1, XX:XX:XX
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C>* 10.0.40.0/24 is directly connected, r2-eth2, XX:XX:XX
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22
tests/topotests/ospf_multi_vrf_bgp_route_leak/r3/frr.conf
Normal file
22
tests/topotests/ospf_multi_vrf_bgp_route_leak/r3/frr.conf
Normal file
@ -0,0 +1,22 @@
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!
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hostname r3
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password zebra
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log file /tmp/r3-frr.log
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!
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interface r3-eth0
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ip address 10.0.3.3/24
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!
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interface r3-eth1
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ip address 10.0.30.3/24
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!
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ip forwarding
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!
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!
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router ospf
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ospf router-id 10.0.255.3
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redistribute kernel
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redistribute connected
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redistribute static
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network 10.0.3.0/24 area 0
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network 10.0.30.0/24 area 0
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!
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@ -0,0 +1,17 @@
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VRF Name: default
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============ OSPF network routing table ============
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N 10.0.3.0/24 [10] area: 0.0.0.0
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directly attached to r3-eth0
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N 10.0.30.0/24 [10] area: 0.0.0.0
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directly attached to r3-eth1
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============ OSPF router routing table =============
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R 10.0.255.1 [10] area: 0.0.0.0, ASBR
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via 10.0.30.1, r3-eth1
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============ OSPF external routing table ===========
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N E2 10.0.4.0/24 [10/20] tag: 0
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via 10.0.30.1, r3-eth1
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N E2 10.0.40.0/24 [10/20] tag: 0
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via 10.0.30.1, r3-eth1
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@ -0,0 +1,8 @@
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O 10.0.3.0/24 [110/10] is directly connected, r3-eth0, weight 1, XX:XX:XX
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C>* 10.0.3.0/24 is directly connected, r3-eth0, XX:XX:XX
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O>* 10.0.4.0/24 [110/20] via 10.0.30.1, r3-eth1, weight 1, XX:XX:XX
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O 10.0.30.0/24 [110/10] is directly connected, r3-eth1, weight 1, XX:XX:XX
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C>* 10.0.30.0/24 is directly connected, r3-eth1, XX:XX:XX
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O>* 10.0.40.0/24 [110/20] via 10.0.30.1, r3-eth1, weight 1, XX:XX:XX
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22
tests/topotests/ospf_multi_vrf_bgp_route_leak/r4/frr.conf
Normal file
22
tests/topotests/ospf_multi_vrf_bgp_route_leak/r4/frr.conf
Normal file
@ -0,0 +1,22 @@
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!
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hostname r4
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password zebra
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log file /tmp/r4-frr.log
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!
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interface r4-eth0
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ip address 10.0.4.4/24
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!
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interface r4-eth1
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ip address 10.0.40.4/24
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!
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ip forwarding
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!
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!
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router ospf
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ospf router-id 10.0.255.4
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redistribute kernel
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redistribute connected
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redistribute static
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network 10.0.4.0/24 area 0
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network 10.0.40.0/24 area 0
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!
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@ -0,0 +1,17 @@
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VRF Name: default
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============ OSPF network routing table ============
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N 10.0.4.0/24 [10] area: 0.0.0.0
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directly attached to r4-eth0
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N 10.0.40.0/24 [10] area: 0.0.0.0
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directly attached to r4-eth1
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============ OSPF router routing table =============
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R 10.0.255.1 [10] area: 0.0.0.0, ASBR
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via 10.0.40.2, r4-eth1
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============ OSPF external routing table ===========
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N E2 10.0.3.0/24 [10/20] tag: 0
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via 10.0.40.2, r4-eth1
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N E2 10.0.30.0/24 [10/20] tag: 0
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via 10.0.40.2, r4-eth1
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@ -0,0 +1,7 @@
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O>* 10.0.3.0/24 [110/20] via 10.0.40.2, r4-eth1, weight 1, XX:XX:XX
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O 10.0.4.0/24 [110/10] is directly connected, r4-eth0, weight 1, XX:XX:XX
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C>* 10.0.4.0/24 is directly connected, r4-eth0, XX:XX:XX
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O>* 10.0.30.0/24 [110/20] via 10.0.40.2, r4-eth1, weight 1, XX:XX:XX
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O 10.0.40.0/24 [110/10] is directly connected, r4-eth1, weight 1, XX:XX:XX
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C>* 10.0.40.0/24 is directly connected, r4-eth1, XX:XX:XX
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@ -0,0 +1,243 @@
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#!/usr/bin/env python
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#
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# test_ospf_multi_vrf_bgp_route_leak.py
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#
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# Copyright (c) 2022 ATCorp
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# Jafar Al-Gharaibeh
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#
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# Permission to use, copy, modify, and/or distribute this software
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# for any purpose with or without fee is hereby granted, provided
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# that the above copyright notice and this permission notice appear
|
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# in all copies.
|
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#
|
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# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
|
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
|
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
|
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# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
|
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# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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# OF THIS SOFTWARE.
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#
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import os
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import sys
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from functools import partial
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import pytest
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# pylint: disable=C0413
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# Import topogen and topotest helpers
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from lib import topotest
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from lib.topogen import Topogen, TopoRouter, get_topogen
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from lib.topolog import logger
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"""
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test_ospf_multi_vrf_bgp_route_leak.py: Test OSPF with multi vrf setup and route leaking.
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"""
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TOPOLOGY = """
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bgp route leaking (connected/ospf), vrfs: neno <==> default <==> ray
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routes leaking to vrfs are limited to neno and ray routes.
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10.0.1.1/24
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^
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|vrf:default
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+---+---+
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10.0.30.0/24 .1| |.1
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+-----------------+ R1 +
|
||||
| vrf:neno | |
|
||||
| +---+---+ ^
|
||||
|.3 .1|vrf:default | 10.0.4.4/24
|
||||
+---+---+ | +---+---+
|
||||
| | 10.0.20.0/24 | |
|
||||
| R3 | | | R4 |
|
||||
| | |.2 | |
|
||||
+---+---+ +---+---+ +---+---+
|
||||
| | | vrf:ray |.4
|
||||
v | R2 +----------------+
|
||||
10.0.3.3/24 | |.2 10.0.40.0/24
|
||||
+---+---+
|
||||
|
|
||||
v
|
||||
10.0.2.2/24
|
||||
|
||||
"""
|
||||
|
||||
# Save the Current Working Directory to find configuration files.
|
||||
CWD = os.path.dirname(os.path.realpath(__file__))
|
||||
sys.path.append(os.path.join(CWD, "../"))
|
||||
|
||||
# Required to instantiate the topology builder class.
|
||||
|
||||
pytestmark = [pytest.mark.ospfd]
|
||||
|
||||
|
||||
def build_topo(tgen):
|
||||
"Build function"
|
||||
|
||||
# Create 4 routers
|
||||
for routern in range(1, 5):
|
||||
tgen.add_router("r{}".format(routern))
|
||||
|
||||
# Create a empty network for router 1
|
||||
switch = tgen.add_switch("s1")
|
||||
switch.add_link(tgen.gears["r1"])
|
||||
|
||||
# Create a empty network for router 2
|
||||
switch = tgen.add_switch("s2")
|
||||
switch.add_link(tgen.gears["r2"])
|
||||
|
||||
# Create a empty network for router 3
|
||||
switch = tgen.add_switch("s3")
|
||||
switch.add_link(tgen.gears["r3"])
|
||||
|
||||
# Create a empty network for router 4
|
||||
switch = tgen.add_switch("s4")
|
||||
switch.add_link(tgen.gears["r4"])
|
||||
|
||||
# Interconect router 1, 2
|
||||
switch = tgen.add_switch("s1-2")
|
||||
switch.add_link(tgen.gears["r1"])
|
||||
switch.add_link(tgen.gears["r2"])
|
||||
|
||||
# Interconect router 1, 3
|
||||
switch = tgen.add_switch("s1-3")
|
||||
switch.add_link(tgen.gears["r1"])
|
||||
switch.add_link(tgen.gears["r3"])
|
||||
|
||||
# Interconect router 2, 4
|
||||
switch = tgen.add_switch("s2-4")
|
||||
switch.add_link(tgen.gears["r2"])
|
||||
switch.add_link(tgen.gears["r4"])
|
||||
|
||||
|
||||
def setup_module(mod):
|
||||
logger.info("OSPF Multi VRF Topology with BGP route leaking:\n {}".format(TOPOLOGY))
|
||||
|
||||
tgen = Topogen(build_topo, mod.__name__)
|
||||
tgen.start_topology()
|
||||
|
||||
r1_vrf_setup_cmds = [
|
||||
"ip link add name neno type vrf table 11",
|
||||
"ip link set dev neno up",
|
||||
"ip link set dev r1-eth2 vrf neno up",
|
||||
]
|
||||
r2_vrf_setup_cmds = [
|
||||
"ip link add name ray type vrf table 11",
|
||||
"ip link set dev ray up",
|
||||
"ip link set dev r2-eth2 vrf ray up",
|
||||
]
|
||||
|
||||
# Starting Routers
|
||||
router_list = tgen.routers()
|
||||
|
||||
# Create VRFs on r1/r2 and bind to interfaces
|
||||
for cmd in r1_vrf_setup_cmds:
|
||||
tgen.net["r1"].cmd(cmd)
|
||||
for cmd in r2_vrf_setup_cmds:
|
||||
tgen.net["r2"].cmd(cmd)
|
||||
|
||||
logger.info("Testing OSPF VRF support")
|
||||
|
||||
for rname, router in router_list.items():
|
||||
logger.info("Loading router %s" % rname)
|
||||
router.load_frr_config(os.path.join(CWD, "{}/frr.conf".format(rname)))
|
||||
|
||||
# Initialize all routers.
|
||||
tgen.start_router()
|
||||
for router in router_list.values():
|
||||
if router.has_version("<", "4.0"):
|
||||
tgen.set_error("unsupported version")
|
||||
|
||||
|
||||
def teardown_module(mod):
|
||||
"Teardown the pytest environment"
|
||||
tgen = get_topogen()
|
||||
tgen.stop_topology()
|
||||
|
||||
|
||||
# Shared test function to validate expected output.
|
||||
def compare_show_ip_route_vrf(rname, expected, vrf_name):
|
||||
"""
|
||||
Calls 'show ip route vrf [vrf_name] route' and compare the obtained
|
||||
result with the expected output.
|
||||
"""
|
||||
tgen = get_topogen()
|
||||
current = topotest.ip4_route_zebra(tgen.gears[rname], vrf_name)
|
||||
ret = topotest.difflines(
|
||||
current, expected, title1="Current output", title2="Expected output"
|
||||
)
|
||||
return ret
|
||||
|
||||
|
||||
def test_ospf_convergence():
|
||||
"Test OSPF daemon convergence"
|
||||
tgen = get_topogen()
|
||||
|
||||
if tgen.routers_have_failure():
|
||||
pytest.skip("skipped because of router(s) failure")
|
||||
|
||||
for rname, router in tgen.routers().items():
|
||||
logger.info('Waiting for router "%s" convergence', rname)
|
||||
|
||||
for vrf in ["default", "neno", "ray"]:
|
||||
# Load expected results from the command
|
||||
reffile = os.path.join(CWD, "{}/ospf-vrf-{}.txt".format(rname, vrf))
|
||||
if vrf == "default" or os.path.exists(reffile):
|
||||
expected = open(reffile).read()
|
||||
|
||||
# Run test function until we get an result. Wait at most 80 seconds.
|
||||
test_func = partial(
|
||||
topotest.router_output_cmp,
|
||||
router,
|
||||
"show ip ospf vrf {} route".format(vrf),
|
||||
expected,
|
||||
)
|
||||
result, diff = topotest.run_and_expect(
|
||||
test_func, "", count=80, wait=1
|
||||
)
|
||||
assertmsg = "OSPF did not converge on {}:\n{}".format(rname, diff)
|
||||
assert result, assertmsg
|
||||
|
||||
|
||||
def test_ospf_kernel_route():
|
||||
"Test OSPF kernel route installation"
|
||||
tgen = get_topogen()
|
||||
|
||||
if tgen.routers_have_failure():
|
||||
pytest.skip("skipped because of router(s) failure")
|
||||
|
||||
rlist = tgen.routers().values()
|
||||
for router in rlist:
|
||||
logger.info('Checking OSPF IPv4 kernel routes in "%s"', router.name)
|
||||
for vrf in ["default", "neno", "ray"]:
|
||||
reffile = os.path.join(CWD, "{}/zebra-vrf-{}.txt".format(router.name, vrf))
|
||||
if vrf == "default" or os.path.exists(reffile):
|
||||
expected = open(reffile).read()
|
||||
# Run test function until we get an result. Wait at most 80 seconds.
|
||||
test_func = partial(
|
||||
compare_show_ip_route_vrf, router.name, expected, vrf
|
||||
)
|
||||
result, diff = topotest.run_and_expect(
|
||||
test_func, "", count=80, wait=1
|
||||
)
|
||||
assertmsg = 'OSPF IPv4 route mismatch in router "{}": {}'.format(
|
||||
router.name, diff
|
||||
)
|
||||
assert result, assertmsg
|
||||
|
||||
|
||||
def test_memory_leak():
|
||||
"Run the memory leak test and report results."
|
||||
tgen = get_topogen()
|
||||
if not tgen.is_memleak_enabled():
|
||||
pytest.skip("Memory leak test/report is disabled")
|
||||
|
||||
tgen.report_memory_leaks()
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
args = ["-s"] + sys.argv[1:]
|
||||
sys.exit(pytest.main(args))
|
||||
Loading…
Reference in New Issue
Block a user