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DP83867IR: DP83867IRPAP RGMII link failed

Part Number: DP83867IR

hi 

We follow up TI DP83867 reference design ,but we had met a problem. 

Strap sets as:(NC= No connect)

cid:__aliyun155737031710380522

 RGMII layout total lengths:

RX_CLK:8590.13mil

RX_D0 :8595.40mil

RX_D1 :8592.55mil

RX_D2 :8589.35mil

RX_D3 :8604.09mil

 TX_CLK:7276.74mil

TX_D0 :7267.87mil

TX_D1 :7262.87mil

TX_D2 :7275.74mil

TX_D3 :7264.74mil

BoardMaterial:TU872,14layers;

the scope of MDI like this:

but reference  design MDI output like this:

so how can we solve this problem.thanks?