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topotests: Topotest changes for new bgp fast convergence knob
Signed-off-by: Kuldeep Kashyap <kashyapk@vmware.com>
This commit is contained in:
Prerana GB
parent
f852eb9833
commit
57ea19204c
232
tests/topotests/bgp_ecmp_topo3/ibgp_ecmp_topo3.json
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232
tests/topotests/bgp_ecmp_topo3/ibgp_ecmp_topo3.json
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@ -0,0 +1,232 @@
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{
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"address_types": [
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"ipv4",
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"ipv6"
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],
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"ipv4base": "10.0.0.0",
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"ipv4mask": 24,
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"ipv6base": "fd00::",
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"ipv6mask": 64,
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"link_ip_start": {
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"ipv4": "10.0.0.0",
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"v4mask": 24,
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"ipv6": "fd00::",
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"v6mask": 64
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},
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"lo_prefix": {
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"ipv4": "1.0.",
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"v4mask": 32,
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"ipv6": "2001:DB8:F::",
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"v6mask": 128
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},
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"routers": {
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"r1": {
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"links": {
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"lo": {
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"ipv4": "auto",
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"ipv6": "auto",
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"type": "loopback"
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},
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"r2-link1": {
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"ipv4": "auto",
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"ipv6": "auto"
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}
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},
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"bgp": {
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"local_as": "100",
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"address_family": {
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"ipv4": {
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"unicast": {
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"neighbor": {
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"r2": {
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"dest_link": {
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"r1-link1": {}
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}
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}
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}
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}
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},
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"ipv6": {
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"unicast": {
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"neighbor": {
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"r2": {
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"dest_link": {
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"r1-link1": {}
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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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},
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"r2": {
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"links": {
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"lo": {
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"ipv4": "auto",
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"ipv6": "auto",
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"type": "loopback"
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},
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"r1-link1": {
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"ipv4": "auto",
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"ipv6": "auto"
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},
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"r3-link1": {
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"ipv4": "auto",
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"ipv6": "auto"
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},
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"r3-link2": {
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"ipv4": "auto",
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"ipv6": "auto"
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}
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},
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"bgp": {
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"local_as": "100",
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"address_family": {
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"ipv4": {
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"unicast": {
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"neighbor": {
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"r1": {
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"dest_link": {
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"r2-link1": {}
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}
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},
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"r3": {
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"dest_link": {
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"r2-link1": {
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"keepalivetimer": 60,
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"holddowntimer": 180,
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"next_hop_self": true
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},
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"r2-link2": {
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"keepalivetimer": 60,
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"holddowntimer": 180,
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"next_hop_self": true
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}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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}
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]
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}
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},
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"ipv6": {
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"unicast": {
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"neighbor": {
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"r1": {
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"dest_link": {
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"r2-link1": {}
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}
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},
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"r3": {
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"dest_link": {
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"r2-link1": {
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"keepalivetimer": 60,
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"holddowntimer": 180,
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"next_hop_self": true
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},
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"r2-link2": {
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"keepalivetimer": 60,
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"holddowntimer": 180,
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"next_hop_self": true
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}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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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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"r3": {
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"links": {
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"lo": {
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"ipv4": "auto",
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"ipv6": "auto",
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"type": "loopback"
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},
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"r2-link1": {
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"ipv4": "auto",
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"ipv6": "auto"
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},
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"r2-link2": {
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"ipv4": "auto",
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"ipv6": "auto"
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}
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},
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"route_maps": {
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"rmap_global": [{
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"action": "permit",
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"set": {
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"ipv6": {
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"nexthop": "prefer-global"
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}
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}
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}]
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},
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"bgp": {
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"local_as": "100",
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"address_family": {
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"ipv4": {
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"unicast": {
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"maximum_paths": {
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"ibgp": 2
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},
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"neighbor": {
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"r2": {
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"dest_link": {
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"r3-link1": {
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"keepalivetimer": 60,
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"holddowntimer": 180
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},
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"r3-link2": {
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"keepalivetimer": 60,
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"holddowntimer": 180
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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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"ipv6": {
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"unicast": {
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"maximum_paths": {
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"ibgp": 2
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},
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"neighbor": {
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"r2": {
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"dest_link": {
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"r3-link1": {
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"keepalivetimer": 60,
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"holddowntimer": 180,
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"route_maps": [{
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"name": "rmap_global",
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"direction": "in"
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}]
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},
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"r3-link2": {
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"keepalivetimer": 60,
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"holddowntimer": 180,
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"route_maps": [{
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"name": "rmap_global",
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"direction": "in"
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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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}
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}
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}
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}
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}
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310
tests/topotests/bgp_ecmp_topo3/test_ibgp_ecmp_topo3.py
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310
tests/topotests/bgp_ecmp_topo3/test_ibgp_ecmp_topo3.py
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@ -0,0 +1,310 @@
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#!/usr/bin/env python
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#
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# Copyright (c) 2019 by VMware, Inc. ("VMware")
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# Used Copyright (c) 2018 by Network Device Education Foundation, Inc.
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# ("NetDEF") in this file.
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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 VMWARE 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 VMWARE 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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"""
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Following tests are covered to test ecmp functionality on iBGP.
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1. Verify bgp fast-convergence functionality
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"""
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import os
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import sys
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import time
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import json
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import pytest
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from time import sleep
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# Save the Current Working Directory to find configuration files.
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CWD = os.path.dirname(os.path.realpath(__file__))
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sys.path.append(os.path.join(CWD, "../"))
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sys.path.append(os.path.join(CWD, "../../"))
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# pylint: disable=C0413
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# Import topogen and topotest helpers
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from lib.topogen import Topogen, get_topogen
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from mininet.topo import Topo
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from lib.common_config import (
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start_topology,
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write_test_header,
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write_test_footer,
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verify_rib,
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create_static_routes,
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check_address_types,
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interface_status,
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reset_config_on_routers,
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required_linux_kernel_version,
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shutdown_bringup_interface,
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apply_raw_config,
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)
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from lib.topolog import logger
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from lib.bgp import verify_bgp_convergence, create_router_bgp, clear_bgp
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from lib.topojson import build_topo_from_json, build_config_from_json
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pytestmark = [pytest.mark.bgpd, pytest.mark.staticd]
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# Reading the data from JSON File for topology and configuration creation
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jsonFile = "{}/ibgp_ecmp_topo3.json".format(CWD)
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try:
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with open(jsonFile, "r") as topoJson:
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topo = json.load(topoJson)
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except IOError:
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assert False, "Could not read file {}".format(jsonFile)
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# Global variables
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NEXT_HOPS = {"ipv4": [], "ipv6": []}
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NETWORK = {"ipv4": "192.168.1.10/32", "ipv6": "fd00:0:0:1::10/128"}
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NEXT_HOP_IP = {"ipv4": "10.0.0.1", "ipv6": "fd00::1"}
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BGP_CONVERGENCE = False
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class CreateTopo(Topo):
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"""
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Test topology builder.
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* `Topo`: Topology object
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"""
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def build(self, *_args, **_opts):
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"""Build function."""
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tgen = get_topogen(self)
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# Building topology from json file
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build_topo_from_json(tgen, topo)
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def setup_module(mod):
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"""
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Sets up the pytest environment.
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* `mod`: module name
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"""
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global NEXT_HOPS, INTF_LIST_R3, INTF_LIST_R2, TEST_STATIC
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global ADDR_TYPES
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testsuite_run_time = time.asctime(time.localtime(time.time()))
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logger.info("Testsuite start time: {}".format(testsuite_run_time))
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logger.info("=" * 40)
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logger.info("Running setup_module to create topology")
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# This function initiates the topology build with Topogen...
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tgen = Topogen(CreateTopo, mod.__name__)
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# Starting topology, create tmp files which are loaded to routers
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# to start deamons and then start routers
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start_topology(tgen)
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# Creating configuration from JSON
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build_config_from_json(tgen, topo)
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# Don't run this test if we have any failure.
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if tgen.routers_have_failure():
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pytest.skip(tgen.errors)
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# Api call verify whether BGP is converged
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ADDR_TYPES = check_address_types()
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BGP_CONVERGENCE = verify_bgp_convergence(tgen, topo)
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assert BGP_CONVERGENCE is True, "setup_module :Failed \n Error:" " {}".format(
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BGP_CONVERGENCE
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)
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# STATIC_ROUTE = True
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logger.info("Running setup_module() done")
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def teardown_module():
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"""
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Teardown the pytest environment.
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* `mod`: module name
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"""
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logger.info("Running teardown_module to delete topology")
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tgen = get_topogen()
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# Stop toplogy and Remove tmp files
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tgen.stop_topology()
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def static_or_nw(tgen, topo, tc_name, test_type, dut):
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if test_type == "redist_static":
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input_dict_static = {
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dut: {
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"static_routes": [
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{"network": NETWORK["ipv4"], "next_hop": NEXT_HOP_IP["ipv4"]},
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{"network": NETWORK["ipv6"], "next_hop": NEXT_HOP_IP["ipv6"]},
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]
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}
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}
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logger.info("Configuring static route on router %s", dut)
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result = create_static_routes(tgen, input_dict_static)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(
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tc_name, result
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)
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input_dict_2 = {
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dut: {
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"bgp": {
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"address_family": {
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"ipv4": {
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"unicast": {"redistribute": [{"redist_type": "static"}]}
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},
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"ipv6": {
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"unicast": {"redistribute": [{"redist_type": "static"}]}
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},
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}
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}
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}
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}
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logger.info("Configuring redistribute static route on router %s", dut)
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result = create_router_bgp(tgen, topo, input_dict_2)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(
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tc_name, result
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)
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elif test_type == "advertise_nw":
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input_dict_nw = {
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dut: {
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"bgp": {
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"address_family": {
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"ipv4": {
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"unicast": {
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"advertise_networks": [{"network": NETWORK["ipv4"]}]
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}
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},
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"ipv6": {
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"unicast": {
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"advertise_networks": [{"network": NETWORK["ipv6"]}]
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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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logger.info(
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"Advertising networks %s %s from router %s",
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NETWORK["ipv4"],
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NETWORK["ipv6"],
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dut,
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)
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result = create_router_bgp(tgen, topo, input_dict_nw)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(
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tc_name, result
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)
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@pytest.mark.parametrize("test_type", ["redist_static"])
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def test_ecmp_fast_convergence(request, test_type):
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"""This test is to verify bgp fast-convergence cli functionality"""
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tc_name = request.node.name
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write_test_header(tc_name)
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tgen = get_topogen()
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# Verifying RIB routes
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dut = "r3"
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protocol = "bgp"
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reset_config_on_routers(tgen)
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static_or_nw(tgen, topo, tc_name, test_type, "r2")
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for addr_type in ADDR_TYPES:
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input_dict = {"r3": {"static_routes": [{"network": NETWORK[addr_type]}]}}
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logger.info("Verifying %s routes on r3", addr_type)
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result = verify_rib(
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tgen,
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addr_type,
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dut,
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input_dict,
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protocol=protocol,
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)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(
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tc_name, result
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)
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intf1 = topo["routers"]["r2"]["links"]["r3-link1"]["interface"]
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intf2 = topo["routers"]["r2"]["links"]["r3-link2"]["interface"]
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logger.info("Shutdown one of the link b/w r2 and r3")
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shutdown_bringup_interface(tgen, "r2", intf1, False)
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logger.info("Verify bgp neighbors are still up")
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result = verify_bgp_convergence(tgen, topo)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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logger.info("Shutdown another link b/w r2 and r3")
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shutdown_bringup_interface(tgen, "r2", intf2, False)
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logger.info("Wait for 10 sec and make sure bgp neighbors are still up")
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sleep(10)
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result = verify_bgp_convergence(tgen, topo)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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logger.info("No shut links b/w r2 and r3")
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shutdown_bringup_interface(tgen, "r2", intf1, True)
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shutdown_bringup_interface(tgen, "r2", intf2, True)
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logger.info("Enable bgp fast-convergence cli")
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raw_config = {
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"r2": {
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"raw_config": [
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"router bgp {}".format(topo["routers"]["r2"]["bgp"]["local_as"]),
|
||||
"bgp fast-convergence",
|
||||
]
|
||||
}
|
||||
}
|
||||
result = apply_raw_config(tgen, raw_config)
|
||||
assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
|
||||
|
||||
logger.info("Shutdown one link b/w r2 and r3")
|
||||
shutdown_bringup_interface(tgen, "r2", intf1, False)
|
||||
|
||||
logger.info("Verify bgp neighbors goes down immediately")
|
||||
result = verify_bgp_convergence(tgen, topo, dut="r2", expected=False)
|
||||
assert result is not True, "Testcase {} : Failed \n Error: {}".format(
|
||||
tc_name, result
|
||||
)
|
||||
|
||||
logger.info("Shutdown second link b/w r2 and r3")
|
||||
shutdown_bringup_interface(tgen, "r2", intf2, False)
|
||||
|
||||
logger.info("Verify bgp neighbors goes down immediately")
|
||||
result = verify_bgp_convergence(tgen, topo, dut="r2", expected=False)
|
||||
assert result is not True, "Testcase {} : Failed \n Error: {}".format(
|
||||
tc_name, result
|
||||
)
|
||||
|
||||
write_test_footer(tc_name)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
args = ["-s"] + sys.argv[1:]
|
||||
sys.exit(pytest.main(args))
|
||||
Loading…
Reference in New Issue
Block a user