2.4.5. IPv6 Overlay TunnelsΒΆ

This section includes summary graphs of VPP Phy-to-Phy packet latency with IPv6 Overlay Tunnels measured at 50% of discovered NDR throughput rate. Latency is reported for VPP running in multiple configurations of VPP worker thread(s), a.k.a. VPP data plane thread(s), and their physical CPU core(s) placement.

VPP packet latency in 1t1c setup (1thread, 1core) is presented in the graph below.

Figure 1. VPP 1thread 1core - packet latency for Phy-to-Phy IPv6 Overlay Tunnels.

CSIT source code for the test cases used for above plots can be found in CSIT git repository:

+ cd tests/vpp/perf/ip6_tunnels
+ grep -E 78B-1t1c-ethip6[a-z0-9]+-[a-z0-9]*-ndrdisc 10ge2p1x520-ethip6lispip4-ip6base-ndrchk.robot 10ge2p1x520-ethip6lispip4-ip6base-ndrpdrdisc.robot 10ge2p1x520-ethip6lispip4-ip6base-pdrchk.robot 10ge2p1x520-ethip6lispip6-ip6base-ndrchk.robot 10ge2p1x520-ethip6lispip6-ip6base-ndrpdrdisc.robot 10ge2p1x520-ethip6lispip6-ip6base-pdrchk.robot
10ge2p1x520-ethip6lispip4-ip6base-ndrpdrdisc.robot:| tc01-78B-1t1c-ethip6lispip4-ip6base-ndrdisc
10ge2p1x520-ethip6lispip6-ip6base-ndrpdrdisc.robot:| tc01-78B-1t1c-ethip6lispip6-ip6base-ndrdisc

VPP packet latency in 2t2c setup (2thread, 2core) is presented in the graph below.

Figure 2. VPP 2threads 2cores - packet latency for Phy-to-Phy IPv6 Overlay Tunnels.

CSIT source code for the test cases used for above plots can be found in CSIT git repository:

+ cd tests/vpp/perf/ip6_tunnels
+ grep -E 78B-2t2c-ethip6[a-z0-9]+-[a-z0-9]*-ndrdisc 10ge2p1x520-ethip6lispip4-ip6base-ndrchk.robot 10ge2p1x520-ethip6lispip4-ip6base-ndrpdrdisc.robot 10ge2p1x520-ethip6lispip4-ip6base-pdrchk.robot 10ge2p1x520-ethip6lispip6-ip6base-ndrchk.robot 10ge2p1x520-ethip6lispip6-ip6base-ndrpdrdisc.robot 10ge2p1x520-ethip6lispip6-ip6base-pdrchk.robot
10ge2p1x520-ethip6lispip4-ip6base-ndrpdrdisc.robot:| tc07-78B-2t2c-ethip6lispip4-ip6base-ndrdisc
10ge2p1x520-ethip6lispip6-ip6base-ndrpdrdisc.robot:| tc07-78B-2t2c-ethip6lispip6-ip6base-ndrdisc