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topotest: Add new OSPF TE topotest

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This new test launches a small network composed by 4 OSPF routers with
Traffic Engineering and Segment Routing configuration. To assess the Link
State Traffic Engineering feature, the TED of each router is compared
against the reference TED which corresponds to the network topology.
Then a series of 6 steps, where Link, TE & SR configurations are modified
up to r4 shutwdown, are used to verify that the TED is correctly updated
on the 4 routers.

Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
This commit is contained in:
Olivier Dugeon 2021-02-26 11:11:13 +01:00
parent f173deb352
commit 927b08024e
17 changed files with 4143 additions and 0 deletions
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0
tests/topotests/ospf-te-topo1/__init__.py Executable file
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23
tests/topotests/ospf-te-topo1/r1/ospfd.conf Normal file
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!
interface lo
ip ospf area 0.0.0.0
!
interface r1-eth0
ip ospf network point-to-point
ip ospf hello-interval 2
ip ospf dead-interval 10
ip ospf area 0.0.0.0
!
interface r1-eth1
ip ospf network point-to-point
ip ospf hello-interval 2
ip ospf dead-interval 10
ip ospf area 0.0.0.0
!
router ospf
ospf router-id 10.0.255.1
capability opaque
mpls-te on
mpls-te router-address 10.0.255.1
!

21
tests/topotests/ospf-te-topo1/r1/zebra.conf Normal file
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@ -0,0 +1,21 @@
!
interface lo
ip address 10.0.255.1/32
!
interface r1-eth0
ip address 10.0.0.1/24
link-params
metric 20
delay 10000
ava-bw 1.25e+08
enable
exit-link-params
!
interface r1-eth1
ip address 10.0.1.1/24
link-params
enable
exit-link-params
!
ip forwarding
!

34
tests/topotests/ospf-te-topo1/r2/ospfd.conf Normal file
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!
interface lo
ip ospf area 0.0.0.0
!
interface r2-eth0
ip ospf network point-to-point
ip ospf hello-interval 2
ip ospf dead-interval 10
ip ospf area 0.0.0.0
!
interface r2-eth1
ip ospf network point-to-point
ip ospf hello-interval 2
ip ospf dead-interval 10
ip ospf area 0.0.0.0
!
interface r2-eth2
ip ospf network point-to-point
ip ospf area 0.0.0.0
ip ospf hello-interval 2
ip ospf dead-interval 10
!
interface r2-eth3
ip ospf network point-to-point
ip ospf hello-interval 2
ip ospf dead-interval 10
ip ospf area 0.0.0.0
!
router ospf
ospf router-id 10.0.255.2
capability opaque
mpls-te on
mpls-te router-address 10.0.255.2
!

33
tests/topotests/ospf-te-topo1/r2/zebra.conf Normal file
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@ -0,0 +1,33 @@
!
interface lo
ip address 10.0.255.2/32
!
interface r2-eth0
ip address 10.0.0.2/24
link-params
enable
exit-link-params
!
interface r2-eth1
ip address 10.0.1.2/24
link-params
enable
exit-link-params
!
interface r2-eth2
ip address 10.0.3.2/24
link-params
enable
exit-link-params
!
interface r2-eth3
ip address 10.0.4.2/24
link-params
metric 30
delay 25000
use-bw 1.25e+8
enable
exit-link-params
!
ip forwarding
!

24
tests/topotests/ospf-te-topo1/r3/ospfd.conf Normal file
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@ -0,0 +1,24 @@
!
interface lo
ip ospf area 0.0.0.0
!
interface r3-eth0
ip ospf network point-to-point
ip ospf area 0.0.0.0
ip ospf hello-interval 2
ip ospf dead-interval 10
!
interface r3-eth1
ip ospf network point-to-point
ip ospf area 0.0.0.0
ip ospf hello-interval 2
ip ospf dead-interval 10
!
!
router ospf
ospf router-id 10.0.255.3
capability opaque
mpls-te on
mpls-te router-address 10.0.255.3
mpls-te inter-as as
!

22
tests/topotests/ospf-te-topo1/r3/zebra.conf Normal file
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@ -0,0 +1,22 @@
!
interface lo
ip address 10.0.255.3/32
!
interface r3-eth0
ip address 10.0.3.1/24
link-params
enable
admin-grp 0x20
exit-link-params
!
interface r3-eth1
ip address 10.0.5.1/24
link-params
enable
metric 10
delay 50000
neighbor 10.0.255.5 as 65535
exit-link-params
!
ip forwarding
!

22
tests/topotests/ospf-te-topo1/r4/ospfd.conf Normal file
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@ -0,0 +1,22 @@
!
interface lo
ip ospf area 0.0.0.0
!
interface r4-eth0
ip ospf network point-to-point
ip ospf hello-interval 2
ip ospf dead-interval 10
ip ospf area 0.0.0.0
!
!
router ospf
ospf router-id 10.0.255.4
capability opaque
mpls-te on
mpls-te router-address 10.0.255.4
segment-routing on
segment-routing local-block 5000 5999
segment-routing global-block 10000 19999
segment-routing node-msd 12
segment-routing prefix 10.0.255.4/32 index 400 no-php-flag
!

12
tests/topotests/ospf-te-topo1/r4/zebra.conf Normal file
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@ -0,0 +1,12 @@
!
interface lo
ip address 10.0.255.4/32
!
interface r4-eth0
ip address 10.0.4.1/24
link-params
enable
exit-link-params
!
ip forwarding
!

577
tests/topotests/ospf-te-topo1/reference/ted_step1.json Normal file
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@ -0,0 +1,577 @@
{
"ted":{
"name":"OSPF",
"key":1,
"verticesCount":5,
"edgesCount":9,
"subnetsCount":14,
"vertices":[
{
"vertex-id":167837441,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.1",
"vertex-type":"Standard"
},
{
"vertex-id":167837442,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.2",
"vertex-type":"Standard"
},
{
"vertex-id":167837443,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.3",
"vertex-type":"ASBR"
},
{
"vertex-id":167837444,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.4",
"vertex-type":"Standard",
"segment-routing":{
"srgb-size":10000,
"srgb-lower":10000,
"algorithms":[
{
"0":"SPF"
}
],
"srlb-size":1000,
"srlb-lower":5000,
"msd":12
}
},
{
"vertex-id":167837445,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.5",
"vertex-type":"Remote ASBR",
"asn":65535
}
],
"edges":[
{
"edge-id":167772161,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.1",
"local-vertex-id":167837441,
"remote-vertex-id":167837442,
"metric":10,
"edge-attributes":{
"te-metric":20,
"local-address":"10.0.0.1",
"remote-address":"10.0.0.2",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
"class-type-0":176258176.0
},
{
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},
{
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},
{
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},
{
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},
{
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},
{
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},
{
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}
],
"delay":10000,
"available-bandwidth":125000000.0
}
},
{
"edge-id":167772162,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"local-vertex-id":167837442,
"remote-vertex-id":167837441,
"metric":10,
"edge-attributes":{
"te-metric":0,
"local-address":"10.0.0.2",
"remote-address":"10.0.0.1",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
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},
{
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},
{
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{
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{
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},
{
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},
{
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},
{
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}
]
}
},
{
"edge-id":167772417,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.1",
"local-vertex-id":167837441,
"remote-vertex-id":167837442,
"metric":10,
"edge-attributes":{
"te-metric":0,
"local-address":"10.0.1.1",
"remote-address":"10.0.1.2",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
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},
{
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},
{
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},
{
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},
{
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},
{
"class-type-5":176258176.0
},
{
"class-type-6":176258176.0
},
{
"class-type-7":176258176.0
}
]
}
},
{
"edge-id":167772418,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"local-vertex-id":167837442,
"remote-vertex-id":167837441,
"metric":10,
"edge-attributes":{
"te-metric":0,
"local-address":"10.0.1.2",
"remote-address":"10.0.1.1",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
"class-type-0":176258176.0
},
{
"class-type-1":176258176.0
},
{
"class-type-2":176258176.0
},
{
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},
{
"class-type-4":176258176.0
},
{
"class-type-5":176258176.0
},
{
"class-type-6":176258176.0
},
{
"class-type-7":176258176.0
}
]
}
},
{
"edge-id":167772929,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.3",
"local-vertex-id":167837443,
"remote-vertex-id":167837442,
"metric":10,
"edge-attributes":{
"te-metric":0,
"admin-group":32,
"local-address":"10.0.3.1",
"remote-address":"10.0.3.2",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
"class-type-0":176258176.0
},
{
"class-type-1":176258176.0
},
{
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},
{
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},
{
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},
{
"class-type-5":176258176.0
},
{
"class-type-6":176258176.0
},
{
"class-type-7":176258176.0
}
]
}
},
{
"edge-id":167772930,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"local-vertex-id":167837442,
"remote-vertex-id":167837443,
"metric":10,
"edge-attributes":{
"te-metric":0,
"local-address":"10.0.3.2",
"remote-address":"10.0.3.1",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
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},
{
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{
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{
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{
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},
{
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},
{
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}
]
}
},
{
"edge-id":167773185,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.4",
"local-vertex-id":167837444,
"remote-vertex-id":167837442,
"metric":10,
"edge-attributes":{
"te-metric":0,
"local-address":"10.0.4.1",
"remote-address":"10.0.4.2",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
"class-type-0":176258176.0
},
{
"class-type-1":176258176.0
},
{
"class-type-2":176258176.0
},
{
"class-type-3":176258176.0
},
{
"class-type-4":176258176.0
},
{
"class-type-5":176258176.0
},
{
"class-type-6":176258176.0
},
{
"class-type-7":176258176.0
}
]
},
"segment-routing":[
{
"adj-sid":5001,
"flags":"0x60",
"weight":0
},
{
"adj-sid":5000,
"flags":"0xe0",
"weight":0
}
]
},
{
"edge-id":167773186,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"local-vertex-id":167837442,
"remote-vertex-id":167837444,
"metric":10,
"edge-attributes":{
"te-metric":30,
"local-address":"10.0.4.2",
"remote-address":"10.0.4.1",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
"class-type-0":176258176.0
},
{
"class-type-1":176258176.0
},
{
"class-type-2":176258176.0
},
{
"class-type-3":176258176.0
},
{
"class-type-4":176258176.0
},
{
"class-type-5":176258176.0
},
{
"class-type-6":176258176.0
},
{
"class-type-7":176258176.0
}
],
"delay":25000,
"utilized-bandwidth":125000000.0
}
},
{
"edge-id":167773441,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.3",
"local-vertex-id":167837443,
"remote-vertex-id":167837445,
"metric":0,
"edge-attributes":{
"te-metric":10,
"local-address":"10.0.5.1",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
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{
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{
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{
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{
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},
{
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},
{
"class-type-6":176258176.0
},
{
"class-type-7":176258176.0
}
],
"remote-asn":65535,
"remote-as-address":"10.0.255.5",
"delay":50000
}
}
],
"subnets":[
{
"subnet-id":"10.0.0.1\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.1",
"vertex-id":167837441,
"metric":10
},
{
"subnet-id":"10.0.0.2\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"vertex-id":167837442,
"metric":10
},
{
"subnet-id":"10.0.1.1\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.1",
"vertex-id":167837441,
"metric":10
},
{
"subnet-id":"10.0.1.2\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"vertex-id":167837442,
"metric":10
},
{
"subnet-id":"10.0.3.1\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.3",
"vertex-id":167837443,
"metric":10
},
{
"subnet-id":"10.0.3.2\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"vertex-id":167837442,
"metric":10
},
{
"subnet-id":"10.0.4.1\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.4",
"vertex-id":167837444,
"metric":10
},
{
"subnet-id":"10.0.4.2\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"vertex-id":167837442,
"metric":10
},
{
"subnet-id":"10.0.5.1\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.3",
"vertex-id":167837443,
"metric":10
},
{
"subnet-id":"10.0.255.1\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.1",
"vertex-id":167837441,
"metric":0
},
{
"subnet-id":"10.0.255.2\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"vertex-id":167837442,
"metric":0
},
{
"subnet-id":"10.0.255.3\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.3",
"vertex-id":167837443,
"metric":0
},
{
"subnet-id":"10.0.255.4\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.4",
"vertex-id":167837444,
"metric":0,
"segment-routing":{
"pref-sid":400,
"algo":0,
"flags":"0x40"
}
},
{
"subnet-id":"10.0.255.5\/32",
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.5",
"vertex-id":167837445,
"metric":10
}
]
}
}

477
tests/topotests/ospf-te-topo1/reference/ted_step2.json Normal file
View File

@ -0,0 +1,477 @@
{
"ted":{
"name":"OSPF",
"key":1,
"verticesCount":5,
"edgesCount":7,
"subnetsCount":12,
"vertices":[
{
"vertex-id":167837441,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.1",
"vertex-type":"Standard"
},
{
"vertex-id":167837442,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.2",
"vertex-type":"Standard"
},
{
"vertex-id":167837443,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.3",
"vertex-type":"ASBR"
},
{
"vertex-id":167837444,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.4",
"vertex-type":"Standard",
"segment-routing":{
"srgb-size":10000,
"srgb-lower":10000,
"algorithms":[
{
"0":"SPF"
}
],
"srlb-size":1000,
"srlb-lower":5000,
"msd":12
}
},
{
"vertex-id":167837445,
"status":"Sync",
"origin":"OSPFv2",
"router-id":"10.0.255.5",
"vertex-type":"Remote ASBR",
"asn":65535
}
],
"edges":[
{
"edge-id":167772161,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.1",
"local-vertex-id":167837441,
"remote-vertex-id":167837442,
"metric":10,
"edge-attributes":{
"te-metric":20,
"local-address":"10.0.0.1",
"remote-address":"10.0.0.2",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
"class-type-0":176258176.0
},
{
"class-type-1":176258176.0
},
{
"class-type-2":176258176.0
},
{
"class-type-3":176258176.0
},
{
"class-type-4":176258176.0
},
{
"class-type-5":176258176.0
},
{
"class-type-6":176258176.0
},
{
"class-type-7":176258176.0
}
],
"delay":10000,
"available-bandwidth":125000000.0
}
},
{
"edge-id":167772162,
"status":"Sync",
"origin":"OSPFv2",
"advertised-router":"10.0.255.2",
"local-vertex-id":167837442,
"remote-vertex-id":167837441,
"metric":10,
"edge-attributes":{
"te-metric":0,
"local-address":"10.0.0.2",
"remote-address":"10.0.0.1",
"max-link-bandwidth":176258176.0,
"max-resv-link-bandwidth":176258176.0,
"unreserved-bandwidth":[
{
"class-type-0":176258176.0
},
{
"class-type-1":176258176.0
},
{
"class-type-2":176258176.0
},
{
"class-type-3":176258176.0
},
{
"class-type-4":176258176.0
},
{
"class-type-5":176258176.0
},
{
"class-type-6":176258176.0
},
{
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}
]
}
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409
tests/topotests/ospf-te-topo1/reference/ted_step3.json Normal file
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490
tests/topotests/ospf-te-topo1/reference/ted_step4.json Normal file
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614
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615
tests/topotests/ospf-te-topo1/reference/ted_step6.json Normal file
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456
tests/topotests/ospf-te-topo1/reference/ted_step7.json Normal file
View File

@ -0,0 +1,456 @@
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314
tests/topotests/ospf-te-topo1/test_ospf_te_topo1.py Normal file
View File

@ -0,0 +1,314 @@
#!/usr/bin/env python
#
# test_ospf_te_topo1.py
# Part of NetDEF Topology Tests
#
# Copyright (c) 2021 by Orange
# Author: Olivier Dugeon <olivier.dugeon@orange.com>
#
# Permission to use, copy, modify, and/or distribute this software
# for any purpose with or without fee is hereby granted, provided
# that the above copyright notice and this permission notice appear
# in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
# OF THIS SOFTWARE.
#
"""
test_ospf_te_topo1.py: Test the FRR OSPF with Traffic Engineering.
+------------+
| |
| R1 |
| 10.0.225.1 |
| |
+------------+
r1-eth0| |r1-eth1
| |
10.0.0.0/24| |10.0.1.0/24
| |
r2-eth0| |r2-eth1
+------------+ +------------+
| | | |
| R2 |r2-eth2 r3-eth0| R3 |
| 10.0.255.2 +------------------+ 10.0.255.3 |
| | 10.0.3.0/24 | |
+------------+ +------+-----+
r2-eth3| r3-eth1|
| |
10.0.4.0/24| 10.0.5.0/24|
| |
r4-eth0| V
+------------+ ASBR 10.0.255.5
| |
| R4 |
| 10.0.255.4 |
| |
+------------+
"""
import os
import sys
import json
from functools import partial
# Save the Current Working Directory to find configuration files.
CWD = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(CWD, "../"))
# pylint: disable=C0413
# Required to instantiate the topology builder class.
from mininet.topo import Topo
# Import topogen and topotest helpers
from lib import topotest
from lib.topogen import Topogen, TopoRouter, get_topogen
from lib.topolog import logger
# and Finally pytest
import pytest
pytestmark = [pytest.mark.ospfd]
class OspfTeTopo(Topo):
"Test topology builder"
def build(self):
"Build function"
tgen = get_topogen(self)
# Create 4 routers
for routern in range(1, 5):
tgen.add_router("r{}".format(routern))
# Interconect router 1 and 2 with 2 links
switch = tgen.add_switch("s1")
switch.add_link(tgen.gears["r1"])
switch.add_link(tgen.gears["r2"])
switch = tgen.add_switch("s2")
switch.add_link(tgen.gears["r1"])
switch.add_link(tgen.gears["r2"])
# Interconect router 3 and 2
switch = tgen.add_switch("s3")
switch.add_link(tgen.gears["r3"])
switch.add_link(tgen.gears["r2"])
# Interconect router 4 and 2
switch = tgen.add_switch("s4")
switch.add_link(tgen.gears["r4"])
switch.add_link(tgen.gears["r2"])
# Interconnect router 3 with next AS
switch = tgen.add_switch("s5")
switch.add_link(tgen.gears["r3"])
def setup_module(mod):
"Sets up the pytest environment"
logger.info("\n\n---- Starting OSPF TE tests ----\n")
tgen = Topogen(OspfTeTopo, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
for rname, router in router_list.items():
router.load_config(
TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
)
router.load_config(
TopoRouter.RD_OSPF, os.path.join(CWD, "{}/ospfd.conf".format(rname))
)
# Initialize all routers.
tgen.start_router()
def teardown_module():
"Teardown the pytest environment"
tgen = get_topogen()
tgen.stop_topology()
logger.info("\n\n---- OSPF TE tests End ----\n")
def compare_ted_json_output(tgen, rname, fileref):
"Compare TED JSON output"
logger.info('Comparing router "%s" TED output', rname)
filename = "{}/reference/{}".format(CWD, fileref)
expected = json.loads(open(filename).read())
command = "show ip ospf mpls-te database json"
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(topotest.router_json_cmp, tgen.gears[rname], command, expected)
_, diff = topotest.run_and_expect(test_func, None, count=60, wait=2)
assertmsg = '"{}" TED JSON output mismatches the expected result'.format(rname)
assert diff is None, assertmsg
def setup_testcase(msg):
"Setup test case"
logger.info(msg)
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
return tgen
# Note that all routers must discover the same Network Topology, so the same TED.
def test_step1():
"Step1: Check initial topology"
tgen = setup_testcase("Step1: test initial OSPF TE Data Base")
for rname in ["r1", "r2", "r3", "r4"]:
compare_ted_json_output(tgen, rname, "ted_step1.json")
def test_step2():
"Step2: Shutdown interface between r1 and r2 and verify that \
corresponding Edges are removed from the TED on all routers "
tgen = setup_testcase("Step2: Shutdown interface between r1 & r2")
tgen.net["r1"].cmd(
'vtysh -c "conf t" -c "interface r1-eth1" -c "shutdown"'
)
tgen.net["r2"].cmd(
'vtysh -c "conf t" -c "interface r2-eth1" -c "shutdown"'
)
for rname in ["r1", "r2", "r3", "r4"]:
compare_ted_json_output(tgen, rname, "ted_step2.json")
def test_step3():
"Step3: Disable Inter-AS on r3 and verify that corresponding Edge and \
remote ASBR are removed from the TED on all routers"
tgen = setup_testcase("Step3: Disable Inter-AS on r3")
tgen.net["r3"].cmd(
'vtysh -c "conf t" -c "router ospf" -c "no mpls-te inter-as"'
)
for rname in ["r1", "r2", "r3", "r4"]:
compare_ted_json_output(tgen, rname, "ted_step3.json")
def test_step4():
"Step4: Enable Segment Routing on r1 and r2 and verify that corresponding \
Edges are updated with Adjacency SID and Subnets with Prefix SID in the \
TED on all routers"
tgen = setup_testcase("Step4: Enable Segment Routing on r1 & r2")
tgen.net["r1"].cmd(
'vtysh -c "conf t" -c "router ospf" -c "segment-routing on"'
)
tgen.net["r1"].cmd(
'vtysh -c "conf t" -c "router ospf" -c "segment-routing global-block 20000 23999"'
)
tgen.net["r1"].cmd(
'vtysh -c "conf t" -c "router ospf" -c "segment-routing prefix 10.0.255.1/32 index 10"'
)
tgen.net["r2"].cmd(
'vtysh -c "conf t" -c "router ospf" -c "segment-routing on"'
)
tgen.net["r2"].cmd(
'vtysh -c "conf t" -c "router ospf" -c "segment-routing node-msd 16"'
)
tgen.net["r2"].cmd(
'vtysh -c "conf t" -c "router ospf" -c "segment-routing local-block 5000 6999"'
)
tgen.net["r2"].cmd(
'vtysh -c "conf t" -c "router ospf" -c "segment-routing prefix 10.0.255.2/32 index 20 explicit-null"'
)
for rname in ["r1", "r2", "r3", "r4"]:
compare_ted_json_output(tgen, rname, "ted_step4.json")
def test_step5():
"Step5: Re-enable interface between r1 & r2 and verify that corresponding \
Edges are added in the TED on all routers"
tgen = setup_testcase("Step5: Re-enable interface between r1 & r2")
tgen.net["r1"].cmd(
'vtysh -c "conf t" -c "interface r1-eth1" -c "no shutdown"'
)
tgen.net["r2"].cmd(
'vtysh -c "conf t" -c "interface r2-eth1" -c "no shutdown"'
)
for rname in ["r1", "r2", "r3", "r4"]:
compare_ted_json_output(tgen, rname, "ted_step5.json")
def test_step6():
"Step6: Set delay and jitter for interface r4-eth0 on r4, remove use-bw \
for interface r2-eth3 on r2 and verify that corresponding Edges are \
updated in the TED on all routers"
tgen = setup_testcase("Step6: Modify link parameters on r2 & r4")
tgen.net["r2"].cmd(
'vtysh -c "conf t" -c "interface r2-eth3" -c "link-params" -c "no use-bw"'
)
tgen.net["r4"].cmd(
'vtysh -c "conf t" -c "interface r4-eth0" -c "link-params" -c "delay 20000"'
)
tgen.net["r4"].cmd(
'vtysh -c "conf t" -c "interface r4-eth0" -c "link-params" -c "delay-variation 10000"'
)
for rname in ["r1", "r2", "r3", "r4"]:
compare_ted_json_output(tgen, rname, "ted_step6.json")
def test_step7():
"Step7: Disable OSPF on r4 and verify that corresponding Vertex, Edges and \
Subnets are removed from the TED on all remaining routers"
tgen = setup_testcase("Step7: Disable OSPF on r4")
tgen.net["r4"].cmd(
'vtysh -c "conf t" -c "no router ospf"'
)
for rname in ["r1", "r2", "r3"]:
compare_ted_json_output(tgen, rname, "ted_step7.json")
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))