[ovs-dev] How to set my own ttl value to mpls flows.

[Pynbiang Hadem]

Hi,I want to add-flows  as shown below:sudo ovs-ofctl -O OpenFlow13 add-flow s1 "table=0,in_port=1,eth_type=0x800,actions=push_mpls:0x8847,set_field:100->mpls_label,set_field:5->mpls_tc,set_field:60->mpls_ttl,output:2"
I want to set my own ttl values. However i get the following error message.  ovs-ofctl: mpls_ttl is not a valid OXM field name

Kindly advice how i can make changes in ovs to add my own ttl values to mpls flow.
Thanks
RegardsHadem.