Change Details

From https://wikitech.wikimedia.org/wiki/Wikimedia_Cloud_Services_team/EnhancementProposals/2020_Network_refresh/Implementation_details#stage_2:_enable_L3_routing_on_cloudsw_nodes --- Baseline configuration [x] Cloudsw vlans (L2) - 1102, 1103, 1104, 1120 [x] iBGP and OSPF between cloudsw [x] eBGP between core routers and cloudsw (185.15.56.0/24 and 172.16.0.0/21, receive 0/0) [x] Static route for 185.15.56.0/25 and 172.16.0.0/21 on cloudsw [x] Firewall filters - lo, cloud-in4 (on core routers) [x] Test connectivity --- cloud-instances-transport migration (downtime required [!]) [] Ensure cr1 is VRRP master for all vlans, including 1120 [] Move cr2:ae2.1120 to cloudsw1-d5:irb.1120 [] Test cr1:ae2.1120 to cloudsw1-d5:irb.1120 connectivity (and VRRP sync) [] Ensure static routes are active and aggregates propagated on cloudsw1-d5 [] [!] Move vlan 1120 VRRP master to cloudsw1-d5:irb.1120 [] [!] Remove static routes for 185.15.56.0/25 and 172.16.0.0/21 on core routers [] Test connectivity [] Move cr1:ae2.1120 to cloudsw1-c8:irb.1120 [] Cleanup (remove passive OSPF, trunked vlans, update Netbox) --- Renumber cloud-instances-transport (downtime required [!]) (similar to T207663) [] Allocate IPs [] Configure 185.15.56.240/29 IPs on all devices [] [!] Reconfigure cloudnet with new gateway IP (to be confirmed) [] [!] Update static routes on cloudsw to point to new VIP [] Cleanup 208.80.155.88/29 IPs and advertisement (+Netbox)

From https://wikitech.wikimedia.org/wiki/Wikimedia_Cloud_Services_team/EnhancementProposals/2020_Network_refresh/Implementation_details#stage_2:_enable_L3_routing_on_cloudsw_nodes --- Baseline configuration [x] Cloudsw vlans (L2) - 1102, 1103, 1104, 1120 [x] iBGP and OSPF between cloudsw [x] eBGP between core routers and cloudsw (185.15.56.0/24 and 172.16.0.0/21, receive 0/0) [x] Static route for 185.15.56.0/25 and 172.16.0.0/21 on cloudsw [x] Firewall filters - lo, cloud-in4 (on core routers) [x] Test connectivity --- cloud-instances-transport migration (downtime required [!]) [x] Ensure cr1 is VRRP master for all vlans, including 1120 [x] Move cr2:ae2.1120 to cloudsw1-d5:irb.1120 [x] Test cr1:ae2.1120 to cloudsw1-d5:irb.1120 connectivity (and VRRP sync) [x] Ensure static routes are active and aggregates propagated on cloudsw1-d5 [x] [!] Move vlan 1120 VRRP master to cloudsw1-d5:irb.1120 [x] [!] Remove static routes for 185.15.56.0/25 and 172.16.0.0/21 on core routers [x] Test connectivity [x] Move cr1:ae2.1120 to cloudsw1-c8:irb.1120 [] Cleanup (remove passive OSPF, trunked vlans, update Netbox) --- Renumber cloud-instances-transport (downtime required [!]) (similar to T207663) [] Allocate IPs [] Configure 185.15.56.240/29 IPs on all devices [] [!] Reconfigure cloudnet with new gateway IP (to be confirmed) [] [!] Update static routes on cloudsw to point to new VIP [] Cleanup 208.80.155.88/29 IPs and advertisement (+Netbox)

From https://wikitech.wikimedia.org/wiki/Wikimedia_Cloud_Services_team/EnhancementProposals/2020_Network_refresh/Implementation_details#stage_2:_enable_L3_routing_on_cloudsw_nodes --- Baseline configuration [x] Cloudsw vlans (L2) - 1102, 1103, 1104, 1120 [x] iBGP and OSPF between cloudsw [x] eBGP between core routers and cloudsw (185.15.56.0/24 and 172.16.0.0/21, receive 0/0) [x] Static route for 185.15.56.0/25 and 172.16.0.0/21 on cloudsw [x] Firewall filters - lo, cloud-in4 (on core routers) [x] Test connectivity --- cloud-instances-transport migration (downtime required [!]) [x] Ensure cr1 is VRRP master for all vlans, including 1120 [x] Move cr2:ae2.1120 to cloudsw1-d5:irb.1120 [x] Test cr1:ae2.1120 to cloudsw1-d5:irb.1120 connectivity (and VRRP sync) [x] Ensure static routes are active and aggregates propagated on cloudsw1-d5 [x] [!] Move vlan 1120 VRRP master to cloudsw1-d5:irb.1120 [x] [!] Remove static routes for 185.15.56.0/25 and 172.16.0.0/21 on core routers [x] Test connectivity [x] Move cr1:ae2.1120 to cloudsw1-c8:irb.1120 [] Cleanup (remove passive OSPF, trunked vlans, update Netbox) --- Renumber cloud-instances-transport (downtime required [!]) (similar to T207663) [] Allocate IPs [] Configure 185.15.56.240/29 IPs on all devices [] [!] Reconfigure cloudnet with new gateway IP (to be confirmed) [] [!] Update static routes on cloudsw to point to new VIP [] Cleanup 208.80.155.88/29 IPs and advertisement (+Netbox)