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…
Author: Martin Schoenbacher
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…
VxLAN BGP EVPN on Nexus 9000v – Part 1
Last Thursday i got a notification that there are new images out for the Nexus 9k. First thing i checked was if there is one too for the Nexus 9000v. And yes, there was it: 7.0(3)I6(1). Next thing to check was if Cisco integrated the highly anticipated feature VxLAN BGP EVPN. And after a bit of searching (since there were no release notes) i found it in the already updated NX-OSv 9000 Guide: Of course I immediately wanted to test it, but i had a real lab available over the weekend, so that had to…
Overview Multicast and VXLAN L2&L3 Support
It took me quite a while to find an official document where you have the chance to get an overview on whats supported on which platform. This week i got lucky 😉 Multicast Enabled Underlay: VXLAN L2 and L3 Gateways: The complete presentation with a lot more of VXLAN informations can be found here: https://www.cisco.com/c/dam/m/sl_si/events/2016/cisco_dan_inovativnih_resitev/pdf/cisco_day_slovenia_2016_vxlan_marian_klas_final.pdf
VXLAN FLOOD&LEARN ON CSR1000v
After getting VXLAN F&L to work on the Nexus 9000v. I thought why not trying the “easier one”, which was already tested a lot of times over the last 1-2 years. And well, i works out of the box. How is it done? CSR1000v as Leafs IOU L3 Router (you can basically use any router that is capable of OSPF/ISIS/EIGRP and PIM) VPCS als clients to ping GNS3 to capture the Ethernet frames for a deeper understanding of what’s going on At first you need basic connectivity and dynamic routing in…
VXLan Flood&Learn on Nexus 9000v with GNS3 2.0
I had quite a lot of troubles with Nexus 9000v on GNS 1.5 with VXLAN. In fact, after finishing the config (with the same Layout used that you see above) it always ended up with the loopback source interface for the NVE Interfaces getting shutdown by the switch. I didn’t had the time to investigate it (beside the fact that i tried to get it work a lot of times …), but this week i upgraded the environment to GNS 2.0. And there was a very welcomed surprise -> It works 🙂 Update: Ariel…
Nexus 9000v on GNS3
Beginning of this year, i learned about the Nexus 9000V and I immediately saw the chance to use it for the CCIE DC preparation (and for some programming tests as well, but that’s for a future blogpost). The 9kV is basically a virtual Nexus 9300 that you can run on ESXi, Virtual BOX and KVM (the qcow2 Version is that one you need for GNS3. Here are the pro’s and con’s for the 9000V, because as always, where’s an upside, there’s also a downside. Pros: Free for testing/training use (you do need a 9k…
And so it begins …
… but before a short flashback into 2007 and the following years: After i left the Telco area to work for a Cisco gold partner, I got the chance to work on my first CCIE (R&S). About two years later, short before my first son was born, this mission was accomplished and i earned my Number (22456). The next years had the main focus on Routing/Switching/MPLS, also when i moved on to a vendor and did a lot of Telco support again it didn’t change a lot. Between working on…