A small township wants its first EVPN-VXLAN fabric with fewer devices holding complex tenant routing features. Why might CRB be chosen operationally?
Select an answer to reveal the explanation.
Short Explanation
For a first small-town fabric, CRB is like putting the fancy routers only at city hall and keeping leaf switches simpler. You still run EVPN — you just concentrate routing state centrally. It is a tradeoff, not a free latency win or a no-BGP shortcut.
Full Explanation
CRB concentrates IRB and richer L3 tenant features on a smaller set of spines/border devices, which can ease early operations when leaf roles stay closer to bridging VTEPs. EVPN/MBGP is still required. CRB does not inherently guarantee better latency than ERB, nor does it remove BGP EVPN or mandate anycast IRB on every leaf.