VPN 10's LAN prefixes never appear in the VPN 0 table, OMP carries them with label 1004, and a VRF 10 ping crossed the overlay 5/5. How a second service VPN and SGT inline tagging plug into the same design.
MRF keeps edge tunnels inside an access region and sends inter-region traffic through border routers in three hops. A flat 20.18 overlay shows what MRF off looks like: device-role edge-router, region-id-set N/A, and REGION ID None on every OMP path.
Two equal-cost static defaults per edge were enough for control connections, two BFD sessions, and a 5/5 VRF 10 ping, while show ip bgp summary said BGP not active. Add CE-PE BGP only when the PE expects it, and permit allow-service bgp first.
VRRP only watches the LAN port, so a primary edge that loses every OMP session keeps the gateway unless you track OMP. On 17.18.1a and later, enabling Track OMP writes track omp decrement 10 instead of track omp shutdown.
TLOC extension lets one WAN edge borrow its neighbor's circuit over a routed link. In this 20.18 lab each edge already owns both colors, so BFD shows two color-matched sessions and no tloc-extension line: the baseline an extension changes.
Two WAN edges at one site that redistribute BGP into OMP and back can loop a prefix. Cisco's fix is a shared site-id plus the SoO extended community, which only works with send-community both. Lab baseline: both edges show BGP not active.
OMP already carries connected LAN prefixes between sites, shown as m routes at administrative distance 251. OSPF joins when the LAN runs an IGP: intra-area and inter-area routes enter OMP automatically, externals need advertise ospf external.
Manager's factory System template marks host-name, system-ip, and site-id as device variables, the same three values that differ between this lab's two C8000v edges. How the attach CSV maps them, and what to check before you upload.
A configuration group is a site class built from System, Transport and Management, Service, and add-on profiles. How a running C8000v config maps into each profile on Manager 20.18.2.1, and why one device can have only one owner.
A device template is a list of feature templates, one per slice of config. Manager 20.18.2.1 ships 127 factory feature templates and 17 factory device templates. How a running C8000v config maps onto them, and what to check before attach.
Three ways to own an SD-WAN edge's configuration, and one device can use only one of them. vManaged: false means the CLI still owns the box. Which model to pick on Manager 20.18 and how to check who owns an edge.
A factory IOS XE edge resolves devicehelper.cisco.com, and PnP Connect returns its Validator and organization name. Everything after that matches a manual onboard. What PnP automates, and what this lab typed by hand instead.