Aruba CX OSPF Config Example

 Building OSPF in Aruba CX switches. 

VIDEO LINK---> https://youtu.be/N9dIGVzdjIU

Version 10.05.0020

DistMain-Switch

vlan 1

vlan 2

vlan 6

vlan 830

    name OSPF-Dist-HS

vlan 831

    name OSPF-Dist-MS

//  vlan 1,2,6 are the local vlans

interface vlan 1

    ip address 10.129.31.254/22

interface vlan 2

    ip address 10.129.47.254/22

interface vlan 6

    ip address 10.129.3.254/22

//  vlan 830,831 are the OSPF networks that will distribute the routes.

interface vlan 830

    description OSPF-Dist-HS

    ip address 10.130.253.1/27

    ip ospf 1 area 0.0.0.0

interface vlan 831

    description OSPF-Dist-MS

    ip address 10.131.253.1/27

    ip ospf 1 area 0.0.0.0

// ospf config..... we are redistributing ALL connected routes on this switch.... If you want to only redistribute certain routes you would need to do a route-map.. see bottom of page for that example.

route ospf 1

    rotuer-id 1.1.1.1

    redistribute connected

    area 0.0.0.0

interface 1/1/2

    no shutdown

    no routing

    vlan trunk native 1

    vlan trunk allowed 830

interface 1/1/3

    no shutdown

    no routing

    vlan trunk native 1

    vlan trunk allowed 831

HS-Main-Switch

vlan 2

vlan 830

interface vlan 2

    ip address 10.130.47.254/22

interface vlan 830

    ip address 10.130.253.2/27

    ip ospf 1 area 0.0.0.0

router ospf 1

    router-id 1.1.1.2

    redistribute connected

    area 0.0.0.0

interface 1/1/2

    no shutdown

    no routing

    vlan trunk native 1

    vlan trunk allowed 830

MS-Main-Switch

vlan 6

vlan 831

interface vlan 6

    ip address 10.131.3.254/22

interface vlan 831

    ip address 10.131.253.2/27

    ip ospf 1 area 0.0.0.0

router ospf 1

    router-id 1.1.1.3

    redistribute connected

    area 0.0.0.0

At this point you should be able to see your ospf peers come up.

"show ip ospf neighbors"

"show ip route ospf"

Route-Map

//  If you would like to only advertise certain routes through OSPF then route-map will be the command to use. 

route-map Allow-Vlan permit seq 10

match interface vlan1

exit

route-map Allow-Vlan permit seq 20

match interface vlan2

exit

Router ospf 1

router ospf redistribute route-map Allow-Vlan

//  This will only allow vlan 1 and 2 to be advertised into OSPF for redistribution.... if you add more vlan's and want to advertise them you will need to add them to the route-map.

Configure OSPF with Extreme EXOS - Area Zero

Here is the outline for how to get OSPF running on 3 Extreme routers and then connecting them to a Cisco router to simulate an outside connection.

Here is a video if you want to watch:  https://www.youtube.com/watch?v=YZkAzKoZlz4

Things to keep in mind

• Your Router that will be connecting your the WAN/Internet needs to have "OSPF export"  to route the other interfaces in your ospf domain.  I am doing this with a static route in "Extreme 1"
• If you have interfaces on a local router you will advertise them by exporting them as "direct" routes.
• All routers need to be in the same area.  Area 0.0.0.0 is the default.
• Every router needs to have a different RouterID.
• Vlan 999 is my link out to the WAN.

Extreme 1 Config:

create vlan "VLAN_0900"

configure vlan VLAN_0900 tag 900
create vlan "VLAN_0902"
configure vlan VLAN_0902 tag 902
create vlan "VLAN_0999"

configure vlan VLAN_0999 tag 999
configure vlan VLAN_0900 add ports 46 tagged
configure vlan VLAN_0902 add ports 45 tagged
configure vlan VLAN_0999 add ports 48 tagged
configure vlan VLAN_0902 ipaddress 10.255.251.1 255.255.255.252
enable ipforwarding vlan VLAN_0900
configure vlan VLAN_0902 ipaddress 10.255.251.10 255.255.255.252
enable ipforwarding vlan VLAN_0902
configure vlan VLAN_0999 ipaddress 10.255.251.253 255.255.255.252

enable ipforwarding vlan VLAN_0999
configure iproute add default 10.255.251.254

configure ospf routerid 1.1.1.1
enable ospf
enable ospf export static cost 5 type ase-type-1
configure ospf add vlan VLAN_0900 area 0.0.0.0 link-type point-to-point

configure ospf add vlan VLAN_0902 area 0.0.0.0 link-type point-to-point

Extreme 2 Config:

create vlan "VLAN_0900"

configure vlan VLAN_0900 tag 900
create vlan "VLAN_0901"
configure vlan VLAN_0901 tag 901
configure vlan VLAN_0900 add ports 45 tagged
configure vlan VLAN_0901 add ports 46 tagged
configure vlan VLAN_0900 ipaddress 10.255.251.2 255.255.255.252
enable ipforwarding vlan VLAN_0900
configure vlan VLAN_0901 ipaddress 10.255.251.5 255.255.255.252
enable ipforwarding vlan VLAN_0901

configure ospf routerid 2.2.2.2
enable ospf
configure ospf add vlan VLAN_0900 area 0.0.0.0 link-type point-to-point

configure ospf add vlan VLAN_0901 area 0.0.0.0 link-type point-to-point

Extreme 3 Config:

create vlan "VLAN_0901"
configure vlan VLAN_0901 tag 901

create vlan "VLAN_0902"

configure vlan VLAN_0902 tag 902

configure vlan VLAN_0901 add ports 45 tagged
configure vlan VLAN_0902 add ports 46 tagged
configure vlan VLAN_0901 ipaddress 10.255.251.6 255.255.255.252
enable ipforwarding vlan VLAN_0901
configure vlan VLAN_0902 ipaddress 10.255.251.9 255.255.255.252
enable ipforwarding vlan VLAN_0902

configure ospf routerid 3.3.3.3
enable ospf
configure ospf add vlan VLAN_0901 area 0.0.0.0 link-type point-to-point

configure ospf add vlan VLAN_0902 area 0.0.0.0 link-type point-to-point