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Advanced Load Balancing Scenario IGP routing may direct all PE3/PE4/PE5 ingress traffic to egress PE2 Example in [IRSCP]: 71.8% of multi-homed traffic goes to one link (complete imbalance) PCE policies could be configured such that traffic load monitored (e.g., based on Netflow data) at ingress routers PE3 ? PE7 towards data center prefixes served by egress routers PE1 & PE2 PCE path computations balance traffic load, e.g., PE4/PE5 to egress PE1, thus overriding default IGP based selection PE1 PE7 PE5 PE2 PCE PE10 PE8 PE3 CE PE6 AS 1 Customer Network PE4 PE9 PCEP Physical link P3 P1 P2 AS 0 |