[ovs-discuss] Query related to invalid_ttl support

bindiya Kurle bindiyakurle at gmail.com
Mon Sep 9 16:55:02 UTC 2019


Hi ,
I was going through the code when ttl =0 and action is set as dec_ttl
for ex:  TTL of the packet is 1 and rule in ovs is ,
ovs-ofctl add-flow vnf-net0 "table=1,in_port=1 actions=dec_ttl,output:2"
 from the 2.11 code.
for this case it calls
        for (i = 0; i < ids->n_controllers; i++) {
            xlate_controller_action(ctx, UINT16_MAX, OFPR_INVALID_TTL,
                                    ids->cnt_ids[i], UINT32_MAX, NULL, 0);
this in turn calls,
put_controller_user_action

This in turn will create user-space action. I am not getting where in the
code, it is generating message towards controller for invalid ttl.
If anyone has idea on this?
regards,
Bindiya
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