SRv6 perf test with service chaining:

A. Endpoint to SR-unaware app via static proxy - End.AS function

    Traffic flow in direction0 (opposite direction1 has the corresponding configuration)

    1. Traffic goes from TG_if1 to DUT1_if1

    2. Encapsulation with srh insertion on DUT1
        sr policy add bsid {dut1_bsid} next {dut2_sid1} next {out_sid1} encap
        sr steer l3 {dut1_sid1} via bsid {dut1_bsid}
        - encapsulated traffic goes to DUT2

    3. End.AS behavior on DUT2
        sr localsid address {dut2_sid1} behavior end.as nh {dut2_nh1} oif {dut2_vhost1} iif {dut2_vhost2} src {dut1_sid1} next {dut2_sid1} next {out_sid1}
        - Decapsulated traffic goes via interface {dut2_vhost1} to DUT2_VM1
        - Traffic is forwarded through DUT2_VM1 via interface {dut2_vhost2} back to DUT2
        - Encapsulation with srh insertion on DUT2 and encapsulated traffic is routed to DUT2_if2

    4. Encapsulated traffic received on TG_if2

B. Endpoint to SR-unaware app via dynamic proxy - End.AD function

    Traffic flow in direction0 (opposite direction1 has the corresponding configuration)

    1. Traffic goes from TG_if1 to DUT1_if1

    2. Encapsulation with srh insertion on DUT1
        sr policy add bsid {dut1_bsid} next {dut2_sid1} next {out_sid1} encap
        sr steer l3 {dut1_sid1} via bsid {dut1_bsid}
        - encapsulated traffic goes to DUT2

    3. End.AD behavior on DUT2
        sr localsid address {dut2_sid1} behavior end.ad nh {dut2_nh1} oif {dut2_vhost1} iif {dut2_vhost2}
        - Decapsulated traffic goes via interface {dut2_vhost1} to DUT2_VM1
        - Traffic is forwarded through DUT2_VM1 via interface {dut2_vhost2} back to DUT2
        - Encapsulation with srh insertion on DUT2 and encapsulated traffic is routed to DUT2_if2

    4. Encapsulated traffic received on TG_if2

C. Endpoint to SR-unaware app via masquerading - End.AM function

    Traffic flow in direction0 (opposite direction1 has the corresponding configuration)

    1. Traffic goes from TG_if1 to DUT1_if1

    2. Encapsulation with srh insertion on DUT1
        sr policy add bsid {dut1_bsid} next {dut2_sid1} next {out_sid1} encap
        sr steer l3 {dut1_sid1} via bsid {dut1_bsid}
        - encapsulated traffic goes to DUT2

    3. End.AM behavior on DUT2
        sr localsid address {dut2_sid1} behavior end.am nh {dut2_nh1} oif {dut2_vhost1} iif {dut2_vhost2}
        - Traffic with replaced DA in outer IPv6 Hdr goes via interface {dut2_vhost1} to DUT2_VM1
        - Traffic is forwarded through DUT2_VM1 via interface {dut2_vhost2} back to DUT2
        - Traffic with updated DA based on SRH is routed to DUT2_if2

    4. Encapsulated traffic received on TG_if2