Software-Defined Access (SD-Access)

Difference between EVPN and VXLAN ?

Hi Experts,   My customer is moving to SD-Access and they have a requirement that some VLANs have stay local to the Building and Switches located in this building - therefore i've started playing with Fabric Zones in the Lab.   To achieve the require...

Hi SDA-Experts,  shortly to the environement:  we have an SDA Fabric in our Location.  We use the Catalyst C9300-48P as Access Switch. Our actual version is the 17.3.4 (which was the recommended at this time)  Now we recently had a case on our end wh...

Hi community, Is HSRP supported on external gateway when using L2VN and two borders with Layer 2 handoff?   HSRP uses Link Local Multicast (224.0.0.2) which should be flooded when L2 flooding is enabled, right?So I was expecting HSRP would work fine?...

Hello!Please help to troubleshoot the case with dhcp lease renewal in sd-access.According to RFC 2131 Section 4.3.2 (DHCPREQUEST generated during RENEWING state), when the client wants to extend their lease, it sends unicast DHCPREQUEST with their ow...

Hello FolksWe have Catalyst 9300 & 9500 series switches with DNA Advantage License and we are running SD-Access and DNAC Appliance. Licenses will be expired after 1 month. If we do not renew a license, what happens. Will there be any functional impac...

Hi All, I have a design question. We have basic fabric site that consists of 2 x co-located Border/CP nodes and ~ 50 Fabric Edge nodes. We have an L2 only pool that we need to extend outside of our SDA fabric to where a firewall/default gateway is lo...

Hi All, Is there a practical limitation to the number of IP Pools with L2 Flooding enabled/or L2 Only pools that can be enabled within a fabric site? When testing L2 flooding in our deployment, I've noticed that all fabric edge switches join the same...

Good morning, could anyone share with me the upstream carrier requirements in order to support SDA IP Transit between external border nodes? Ie: MTU Sizes, VRF Capabilities, Support for eBGP etc I understand that different architectures are supported...

Curious what other enterprises have done about CER in the SDA Fabric.  Is everyone deploying a new fabric site for every location or subnet for each voice location so CER can properly identify the location when someone calls 911?  This seems like an ...

I have a customer who migrated their on-prem DC completely to public Cloud. Now they are interested about the SD-Access for their offices. As far as I know the DNAC is still only offered in physical hardware form factor, so does anyone know if there ...

Are you/your team using Cisco DNA Center to configure/monitor/manage SD-Access fabric networks?     If so, we’d like to speak with you to get your feedback on some new concepts of a network management tool!    We ask that you complete our brief surve...