Here’s something I was working on for the last weeks. I saw some examples of such a diagram, but so far non of them really did satisfy me so i made my own. But i had a lot of support from other enginners, even some Cisco SE’s who did take a look and gave me some hints. I can’t really tell all names now, but rest assured I’m very glad you all did look over it! So here it is. If you have comments, please leave a note or drop…
Category: ACI
ACI – Preferred Groups
Since APIC Release 2.2(1n) Cisco enabled a feature called Preferred Groups. What does it and when do you need it? It allows defined EPGs in a VRF still to communicate with each other even when the Policy enforcement is enabled and there are no contract between those EPG’s. This can be, for example, really useful for migration scenarios. You can use them with all kind of EPG’s: EPG, uEPG or External EPG. But there are a few things you should be aware when you use it: You have to specify…
ACI – Access the Snapshots via CLI
When I planned to do a factory reset of my APIC in the Lab, I wanted to create a snapshot of the current configuration directly copy it down to my Laptop. Over the GUI, there is no way to do this. You can just create a local snapshot on the APIC or send it to a remote location which needs to be a FTP/SCP/SFTP Server. But you can’t simply download it. After a bit of research, I figured out how to locate the file on the file system of the APIC and how…
ACI – Cleanup “leftovers” from Wizards
Sometimes it happens that there are config parts on the APIC left, that you can’t delete in the GUI since there is no delete option. Here is one example: Those are the un-deletable objects: So to get rid of it you could factory reset the APIC (which is not really suitable), Call TAC, or just delete it yourself via the REST API or the CLI. I’ll go into detail for the last two ones. Delete it via REST API Right-Click on the object and “save-as” When you open…