About mgaven

mgaven · 09-11-2025

Hi, just a heads-up so you're aware and can be cautious — we almost lost the entire fabric yesterday because of this.We're in the process of upgrading our ACI from version 4.x to 6.x. We had already upgraded the APICs and some of the C93108TC-FX3 lea...

mgaven · 11-01-2024

Hello, we had a issue with an APIC node (UCS-C220-M4 server) and its motherboard was replaced.The APIC was decomissioned and now boots up again and its ready to rejoin the cluster.The question is: should a factory reset be performed beforehand or can...

mgaven · 09-28-2021

Hello, I´m working on an Ansible playbook and one of the tasks to automate is to map EPGs through AEPs.I have seen a module to do static bindings (aci_static_binding_to_epg) and bind an EPG to a domain (aci_epg_to_domain) but I can´t find one to do t...

mgaven · 07-04-2013

A few days ago one of our 7600 routers start to fail to synchronize with the NTP server. This works fine for many months and other clients continue synchronizing without problems.The ios version is 124-22.T5We start to debug all the ntp events an the...

mgaven · 10-31-2024

Thanks! After a 48hs-nervous breakdown we try your solution and APIC boots again.

mgaven · 08-30-2016

No way! The TACACS solution explained by Mike is a partial solution if you need that. Good luck.

mgaven · 07-25-2014

Hi!You can´t put two VTP domains on the same chassis, with or without VSS.You must configure your VSS as VTP Server and define there all the VLANs you need, and renumber the repeated one.

mgaven · 07-18-2014

Can you connect throght SSH? Which is the error message that you see? Looking at your configuration file I don´t see the lines "enable secret" neither "enable password". If you don´t define them you can´t connect remotely to any device.

mgaven · 07-16-2014

If you need the certification must take another test, if not, nothing...

Member Since	‎08-10-2007 12:56 PM
Date Last Visited	‎09-16-2025 01:03 AM
Posts	31
Total Helpful Votes Received	5

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ACI fabric with pre-downloaded images uncontrolled upgrade

Rejoin an APIC to cluster after motherboard change

Binding EPG through AEP Ansible

NTP fail to synchronize

Re: APIC firmware upgrade failure?

No way! The TACACS solution

Hi!You can´t put two VTP

Can you connect throght SSH?

If you need the certification