04-05-2020 01:14 AM
Hi Team!
I need help, with design and I think some example of configuration.
I do not have experience with VXLAN, but there is a task to configure the network for VSAN stretched cluster.
I have 6 Nexus 9000 EX, with a license LAN_ENTERPRISE_SERVICES_PKG ( 3 sites - 2 Nexus with KA and VPC peer link for each sites).
Nexuses are interconnected by dark optical fiber, the speed of each port is 10G, in total this is 1 VPC link per 40 G (for understanding pls see picture in attach)
My task is to make routing between sites so that virtual machines on each side can ping each other on different subnets ( for example: VM with ip 10.10.10.100 at Site 1 can ping VM 10.10.20.100 at Site 2)
I read a lot of documentation about VXLAN EVPN BGP, for me it is clear that for VXLAN underlay it is necessary to use routing protocols (for example, when using spine and leaf topology, L3 connectivity is necessary)
In my case - Nexus 9300 EX Nexus cant't use the logical interface PO as L3 interface ( no switchport), if I will use a dedicated interface for L3 connectivity for VXLAN underlay- I will lose bandwidth because my SFP module is only 10g
Unfortunately, I do not have other equipment, only 6 nexuses. If someone else had a similar case, I will be very grateful for any tips and configuration examples.
04-05-2020 08:20 PM
04-20-2020 12:11 AM - edited 04-20-2020 01:27 AM
Hi, Francesco!
I apologize for the long answer.
Thanks for such a detailed post.
But I have some doubts about using a VXLAN EVPN Multi-Site.
According to the cisco documentation, a N93-FAB1K9 license is required for this solution, which I don't have.
About the topology - I understood your idea, but if it’s not difficult for you, could you draw a diagram, how will it work? Thanks in advance.
04-20-2020 08:33 AM
N93-FAB1K9 is essential for BGW
04-20-2020 09:15 AM
Thanks for your answer.
If I understand correctly, I can't use VXLAN EVPN Multi-Site Using vPC Border Gateways architecture without N93-FAB1K9, right?
04-20-2020 07:54 PM
04-21-2020 07:05 AM
Thanks for the answer, maybe you have a link to the documents, where can I see some examples of file configuration?
04-22-2020 07:00 PM
04-27-2020 02:27 AM
Thank you for your answer.
I set up VXLAN topology - like full mesh connectivity, OSPF as an underlay protocol.
But now I have one more task. Currently, inter VXLAN routing works well.
But it is necessary to make sure that for some virtual machines the Palo Alto firewall is the default gateway, and for the rest, the Nexus. And need to organize communication between VM machines.
Maybe you have examples of configurations that would help me a lot.
Thanks in advance.
04-27-2020 11:11 AM
04-20-2020 08:00 PM
Correct! you need license to make BGW(vpc/non-vpc) work.
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