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SEQUENCE NUMBER

Hai all,

I have some doubts regarding sequence number appended with every packet from uart.Suppose that i have 1 cordinator and 2 routers say C1, R1,R2. Imagine R1 sends a UART packet to C1 with some sequence number. C1 saves the seq no for future purpose like to check for retransmitted packet. Now R2 sends a UART packet to C1 with some other seq no .Now the cordinator will compare the seq no with the earlier saved seq no of R1. The processing is such that it it accepts if the seq no is greater than that earlier one. This seems to be logically wrong and rejection of some useful packets. How can this issue be solved?

Please help

Thanks in advance

arun