A public-health clinic network has multiple equal-cost transport LSPs between PEs carrying VPN traffic. How does ECMP typically behave for that MPLS VPN load sharing?
Select an answer to reveal the explanation.
Short Explanation
Equal-cost LSPs are multiple lanes on the same highway between PEs. Hash the flow onto a lane and VPN traffic spreads out — no need to invent extra RTs just for load sharing. Pinning everything to one LSP wastes the parallel paths the underlay already built.
Full Explanation
When the underlay offers multiple equal-cost labeled paths between PEs, platforms can ECMP VPN traffic across those LSPs using a hash of invariant packet fields. That multipath behavior is independent of RT design and does not require pinning all prefixes to one LSP. LDP label magnitude is not a path-selection preference rule. Understanding ECMP over MPLS LSPs helps clinic operators verify parallel core capacity is actually used.