Specifies the length of the payload in RoE packets in bytes after the RoE common header and beforeFCS. For tunneling mode,the payload length can be 1,1.5,2,4,8 times of CPRI basic frames with line coding. For line coding aware mode, the payload length can be 1,1.5,2,4,8 times of CPRI basic frames. And correspondingly,the encap buffer is fixed to 2xpayload-len. Default: For tunneling mode, 1188 bytes for CPRI-10 660 bytes for CPRI-8 640 bytes for CPRI-7 For line coding aware mode 1152 bytes for CPRI-10 640 bytes for CPRI-8 512 bytes for CPRI-7.