Does SRX copy DSCP value from inner packet ( payload) into GRE imposed IP header when encapsulating it? If not , how can we tell SRX to copy DSCP value from inner packet into GRE header imposed IP header?
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So I tested this is what i see:
All Trannsit traffic , DSCP is copied from inner packet to GRE imposed IP header. This command has no impact on transit traffic.
All traffic locally sourced and routed over GRE will only copy DSCP from inner pcket to GRE imposed IP header if this command is configured so this command only impact locally generated traffic ( host traffic) which is routed over GRE.
I do not see that, I see DSCP bits are copied for transit traffic by default.
I understood you , in my example SRX is GRE end point so it can see DSCP in inner packet when performing GRE encapsulation.