About Hector Gustavo Serrano Gutierrez

Hector Gustavo Serrano Gutierrez · 07-28-2020

Introduction Let me start by telling you that there is already a very nice document in the Cisco Community Forums which describes the procedure to upgrade the APIC CIMC. In case you came across this document before looking into the mentioned one, he...

Hector Gustavo Serrano Gutierrez · 06-07-2020

Introduction The purpose of this document is to share my personal experience upgrading Cisco Data Center Network Manager (DCNM) from version 11.2(1) to 11.3(1) in my lab environment. The details of this particular setup are: DCNM 11.2(1) deployed us...

Hector Gustavo Serrano Gutierrez · 06-03-2020

Introduction Cisco Data Center Network Manager (DCNM) version 11.3(1) and earlier releases use the interface called Out-of-Band Network (eth1 in DCNM Linux shell) to communicate, push and sync configurations with the Switching fabric. To do this, DC...

Hector Gustavo Serrano Gutierrez · 10-06-2019

Nota: Este es un documento "vivo" el cual continuará actualizandose y detallando la información a medida que la Comunidad de Cisco en Español proveea sugerencias y vote como útil este documento. De ser así, se evaluarán las segurencias encontradas en...

Hector Gustavo Serrano Gutierrez · 01-01-2017

This document has been moved to Cisco.com https://www.cisco.com/c/en/us/support/docs/ip/ip-version-6-ipv6/213272-troubleshoot-ipv6-dynamic-address-assign.html

Hector Gustavo Serrano Gutierrez · 12-16-2020

Hi @SIMMN, It is correct that the feature is enabled by default, although it is not necessary in this scenario. As Robert was suggesting, this has to do with the use of this feature and that the Catalyst does not really connect to another single Swit...

Hector Gustavo Serrano Gutierrez · 12-16-2020

I'm glad it is working OK now. ACI acts like a Hub when it comes to STP BPDUs, when received from an interface associated to an EPG, it just forwards those out all other interfaces associated with the same EPG (and encap vlan) on the same or other Le...

Hector Gustavo Serrano Gutierrez · 12-16-2020

Hi @SIMMN, On your Catalyst Switch, could you please do no spanning-tree etherchannel guard misconfig? I suspect this will solve this situation. Best Regards.

Hector Gustavo Serrano Gutierrez · 12-09-2020

Hi @e-chuah, One reason that the APIC is not replying with the DHCP Offer is that the Spines' uplinks of the 2nd Pod are not already configured as part of the infra L3Out. This L3Out is the one you'll find in Tenant Infra and you should have in advan...

Hector Gustavo Serrano Gutierrez · 12-04-2020

Hi @thirodmorais, Yes, you can use the same interfaces of the L3Out to extend the Layer 2 between your Firewall and your L3 Switch. But you need to use one single L3Out to connect with both, your Firewall and L3 Switch. You cannot use 2 different L3O...

Member Since	‎11-30-2013 07:38 PM
Date Last Visited	‎09-13-2021 09:42 AM
Posts	405
Total Helpful Votes Received	603

User Statistics

User Activity

APIC CIMC Upgrade Procedure via CIMC Virtual Media

Upgrade Cisco DCNM from version 11.2(1) to 11.3(1)

Unable to initially discover Switches on DCNM version 11.3(1)

Configuración de VXLAN BGP EVPN en equipos Cisco Nexus 9000 en modo NX-OS

Troubleshooting IPv6 dynamic address assignment between Cisco and Windows

Re: ACI vPC to C2960X Stack err-disable ports/PO.

Re: ACI vPC to C2960X Stack err-disable ports/PO.

Re: ACI vPC to C2960X Stack err-disable ports/PO.

Re: ACI Multipod Fabric Discovery

Re: Extend VLAN through ACI Fabric