Author Topic: SDA question (On behalf of Tayo) (Read 26718 times)

Administrator · « **on:** February 04, 2019, 08:47:37 PM »

I am trying to bring up fabric using a single seed border switch and CDP, what do I need configured on the second border switch and edge switches? 2nd is, do I need and exter DHCP server for discovery? Issue is I only see the seed switch.

Administrator · « **Reply #1 on:** February 04, 2019, 08:51:38 PM »

When you use LAN automation to bring up the fabric underlay, all switches should be treated the same way. Only once the fabric underlay is up and all devices are added to DNAC, you then start provisioning fabric overlay and assign device role. The DHCP server device uses for initial communication is configured on the seed switch by DNAC so there is no need for external DHCP server. This is demonstrated in RS0118 video.

TFashy · « **Reply #2 on:** February 04, 2019, 10:16:44 PM »

Thanks for posting this on my behalf.

Is there a place for initial lab configurations?

Because if I understand you correctly, since all that was initially configured on BC2 was default routing, SNMP and local username/password we need to configure the same (all three) on other fabric members to be discovered and provisioned? And that includes pair border and edge switches.

MC · « **Reply #3 on:** March 09, 2019, 11:49:12 AM »

Actually no. The purpose of LAN automation is that you do not need to perform any config on the device. In fact, the switch cannot have any config on it for the auto-provisioning to work. A brand new switch will get info from the seed switch DHCP server, automatically added to DNAC, and DNAC will push out the rest of config.

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Author Topic: SDA question (On behalf of Tayo) (Read 26718 times)

Administrator

SDA question (On behalf of Tayo)

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