01-08-2015 11:53 AM - edited 03-07-2019 10:08 PM
Hi,
I have two Nexus 7K, one at each datacenter. They are connected via 10G Ethernet. Both Nexus cores are running OSPF between them. Below are their configs:
Nexus 1:
interface Vlan10
no ip redirects
ip address 10.0.0.2/22
ip router ospf 3900 area 0.0.0.0
ip pim sparse-mode
no shutdown
!
router ospf 3900
router-id 10.0.0.2
redistribute static route-map static-to-ospf
!
route-map static-to-ospf permit 10
set metric 20
set metric-type type-2
Nexus 2:
interface Vlan10
no ip redirects
ip address 10.0.0.3/22
ip router ospf 2775 area 0.0.0.0
ip pim sparse-mode
no shutdown
!
router ospf 2775
router-id 10.0.0.3
redistribute static route-map static-to-ospf
!
route-map static-to-ospf permit 10
set metric 20
set metric-type type-2
I have a few connections that are currently connected to a 3560-X. This switch is directly connected to Nexus 2 on VLAN10. I would like to inject the static routes that are listed in the 3560-X into OSPF. These routes needs to be listed in both Nexus cores. Would the following config on the 3560-X look correct:
router ospf 2775
router-id 10.0.0.13
redistribute static subnets
!
int vlan 10
ip router ospf 2775 area 0.0.0.0
!
ip route 10.1.0.0 255.255.254.0 10.0.246.2
ip route 10.1.2.0 255.255.255.0 10.0.246.2
Is there anything I am overlooking? These connections are terminated to the 3560-X because the one Nexus core will be moving into our DR facility. Therefore, I need to migrate many of the connections off the Nexus and onto the 3560-X. Eventually, the 10G pipe will be migrated from the Nexus onto the 3560-X.
01-08-2015 01:37 PM
Hi,
Your config for the 3560-X looks correct.
I am not sure if you can add the process and area to an interface on these switches, if not you can simply add a network statement to your OSPF process.
Although OSPF process ids are locally significant, is there a reason for assigning 2 different process ides for 2 different devices? It makes troubleshooting and overall management easier if you use the same id on both devices.
HTH
01-08-2015 01:40 PM
Ok. The ID's were set based on location. At this point, we only have 1 process running per switch, but if we had multiple processes running I could see that matching the ID's would be easier to manage. Thanks for your help.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide