About Daniel S.

Daniel S. · 06-24-2025

Hello ACI people, I came across interesting scenario. I need to create Transit Routing between two different L3Outs, L3Out-A and L3Out-B, they are in different VRFs, VRF-A and VRF-B under one Tenant. L3Out-A is using OSPF and L3Out-B is just a static...

Daniel S. · 11-21-2024

Hello ACI people, I have over 50 faults "F0467" for Configuration failed. The problem is clear, encap VLAN not present in the VLAN pool. There are a few vPCs towards Fabric Interconnects, trunk with VLAN encap 1000. In the specific EPG, domain added ...

Daniel S. · 10-11-2024

Hello ACI people, I would like to kindly ask for a second opinion. I have a internal Firewall pair connected thru the L3Out_1, running OSPF area 150. This L3Out_1 is implemented in Pod1 and Pod2 on a pair of leaves 101 and 102, then the same L3Out_1 ...

Daniel S. · 11-20-2023

Hello ACI people! I came across a strange issue today. I have a jumphost living in the fabric. From that jumphost I tried to reach two different hosts in the same subnet, external to the fabric. I can ping one of them from the jumphost with no issues...

Daniel S. · 06-19-2023

Hello ACI Community! I encountered an unusual issue recently. Before making a change to the fabric, I took a snapshot as a precautionary measure. The change itself was quite simple: I removed several unused policies from the interfaces to reduce the ...

Daniel S. · 06-24-2025

Small update. The initial Contract was created in the same Tenant where I have both L3Outs. After I created a new identical Contract in the Common Tenant, then the Contract was applied and packet forwarded. Waiting for a confirmation to see if this w...

Daniel S. · 06-05-2025

Hi There, is there any chance that you do already have an upgrade group created from a previous upgrade? If so, then the Spine or Leaf wont show up for a new upgrade group if it is already part of the old upgrade group. If you do have an old upgrade ...

Daniel S. · 05-27-2025

I’ve never encountered any limitations on the size of upgrade groups or the total number of devices being upgraded in any Cisco ACI documentation. The fabrics I manage typically consist of no more than 40–50 leaves each, so I haven’t performed an upg...

Daniel S. · 05-27-2025

"Including rollback time, the upgrade is limited to just 2 hours, so the typical upgrade approach would result in a very long overall upgrade cycle." "The upgrade will be done by groups based on service groups — for example, upgrading all server-conn...

Daniel S. · 05-26-2025

Hi, That’s certainly an interesting approach. However, I would recommend creating dedicated upgrade groups that you can use during the actual upgrade process. Creating a single, large group just for pre-downloading images isn’t ideal because wh...

Member Since	‎10-27-2021 12:52 PM
Date Last Visited	‎09-16-2025 12:24 AM
Posts	41
Total Helpful Votes Received	32

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User Activity

Transit routing and VRF leaking between two L3Outs

VMM integration and domain selection | F0467

ACI Routing Problem (Transit routing)

Unexpected forwarding decision | DROP

Failed Configuration Rollback

Re: Transit routing and VRF leaking between two L3Outs

Re: Upgrade of ACI Spines

Re: Upgrade Path for Cisco ACI Fabric – Question on APIC 6.1 and Fabri

Re: Upgrade Path for Cisco ACI Fabric – Question on APIC 6.1 and Fabri

Re: Upgrade Path for Cisco ACI Fabric – Question on APIC 6.1 and Fabri