About SIMMN

SIMMN · 12-16-2025

I have configured a Security Zone or Interface Group that contains multiple interfaces (each has its own unique IP/subnet). When I use either the Security Zone or Interface Group as the destination interface object in a NAT rule. How would I know whi...

SIMMN · 12-02-2025

I am planning to execute Nexus Dashboard upgrade from v2.3(2) to v3.2(2). The cluster only hosts the NDO to work with APIC on-prem. I understand there would be an interim ND version of v3.1.1 I have to upgrade to first. But I also heard there might b...

SIMMN · 11-27-2025

Say I have a simple ACI fabric: two spines and four leafs with single tenant and one VRF. Two of the leafs (101 & 102) are reserved as compute leafs and the other two (103 & 104) are border leafs which would have EIGRP peering with two different exte...

SIMMN · 11-14-2025

Hi, I have a existing small ACI fabric, illustrated in the high-level diagram below and I would need some information/advice on a "weird" setup requirement...RT1 has already established OSPF peering with ACI and Jumpbox (using RT1 as default gateway)...

SIMMN · 09-12-2025

What I am looking for is to implement the PBR on layer 3 device to forward traffic to specific next-hop based on specific source IP/subnet. This functionality has been available inside NX-OS/IOS forever... But as far as I know, ACI does not support p...

SIMMN · 12-03-2025

Well, it makes me feel better if you did not experience issue assuming you conducted similiar upgrades. If I would have a vND setup, I would be executing the backup restore as well as stepped upgrades. Like I mentioned, the only thing I would not be ...

SIMMN · 12-03-2025

I hope someone here might had experience to share insights regarding the potential configuration issue post upgrade... Good point regarding the working backup though...I would built a virtual ND with NDO to validate the existing NDO backup. Do plan t...

SIMMN · 12-02-2025

I do plan to do backup and then conduct upgrades. As matter of fact, there are scheduled backups for NDO already. I do have support and can open proactive case as well. but hope someone here might have some insights that I could avoid the pain…

SIMMN · 12-02-2025

I did review info in that link but didn’t find any issue/limitation related to schemas/templates… Even I built a ND VM with NDO to test the upgrade successfully, I still wouldn’t know if the configuration would be push to APIC properly…unless I bui...

SIMMN · 12-02-2025

Found no fancy solution, other than using static IP...

Member Since	‎11-22-2011 05:07 PM
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How would FTD decide which interface to use to perform NAT?

Anyone done Nexus Dashboard Upgrade from v2.3 to v3.2?

Help me understand why ACI L3Out has such limitation on EIGRP...

Reachability issue between external network and L3Out peer IP

Has anyone implemented traditional-like Policy-based routing in ACI?

Re: Anyone done Nexus Dashboard Upgrade from v2.3 to v3.2?

Re: Anyone done Nexus Dashboard Upgrade from v2.3 to v3.2?

Re: Anyone done Nexus Dashboard Upgrade from v2.3 to v3.2?

Re: Anyone done Nexus Dashboard Upgrade from v2.3 to v3.2?

Re: FTD Static VTI with dynamic pub address as the tunnel source?