diff options
Diffstat (limited to 'tests/suites/performance/Long_IPv4_Intel-X520-DA2.robot')
| -rw-r--r-- | tests/suites/performance/Long_IPv4_Intel-X520-DA2.robot | 108 |
1 files changed, 54 insertions, 54 deletions
diff --git a/tests/suites/performance/Long_IPv4_Intel-X520-DA2.robot b/tests/suites/performance/Long_IPv4_Intel-X520-DA2.robot index 90b3abd0d9..8b80aabcff 100644 --- a/tests/suites/performance/Long_IPv4_Intel-X520-DA2.robot +++ b/tests/suites/performance/Long_IPv4_Intel-X520-DA2.robot @@ -38,14 +38,14 @@ | | [Documentation] | | ... | Find throughput with non drop rate for 64B frames by using | | ... | binary search with threshold 0.1Mpps. -| | [Tags] | 1_THREAD_NOHTT_RSS_1 | SINGLE_THREAD | NDR +| | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | NDR | | ${framesize}= | Set Variable | 64 | | ${min_rate}= | Set Variable | 100000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_64B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '1' worker threads and rss '1' without HTT to all DUTs +| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -60,14 +60,14 @@ | | ... | Find throughput with partial drop rate for 64B frames by using | | ... | binary search with threshold 0.1Mpps. Loss acceptance is set to 0.5 | | ... | percent of transmitted packets. -| | [Tags] | 1_THREAD_NOHTT_RSS_1 | SINGLE_THREAD | PDR +| | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | PDR | | ${framesize}= | Set Variable | 64 | | ${min_rate}= | Set Variable | 100000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_64B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '1' worker threads and rss '1' without HTT to all DUTs +| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -83,14 +83,14 @@ | | [Documentation] | | ... | Find throughput with non drop rate for 1518B frames by using | | ... | binary search with threshold 10,000pps. -| | [Tags] | 1_THREAD_NOHTT_RSS_1 | SINGLE_THREAD | NDR +| | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | NDR | | ${framesize}= | Set Variable | 1518 | | ${min_rate}= | Set Variable | 10000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '1' worker threads and rss '1' without HTT to all DUTs +| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -105,14 +105,14 @@ | | ... | Find throughput with partial drop rate for 1518B frames by using | | ... | binary search with threshold 10,000pps. Loss acceptance is set to 0.5 | | ... | percent of transmitted packets. -| | [Tags] | 1_THREAD_NOHTT_RSS_1 | SINGLE_THREAD | PDR +| | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | PDR | | ${framesize}= | Set Variable | 1518 | | ${min_rate}= | Set Variable | 10000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '1' worker threads and rss '1' without HTT to all DUTs +| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -128,14 +128,14 @@ | | [Documentation] | | ... | Find throughput with non drop rate for 9000B frames by using | | ... | binary search with threshold 5,000pps. -| | [Tags] | 1_THREAD_NOHTT_RSS_1 | SINGLE_THREAD | NDR +| | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | NDR | | ${framesize}= | Set Variable | 9000 | | ${min_rate}= | Set Variable | 5000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '1' worker threads and rss '1' without HTT to all DUTs +| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Apply startup configuration on all VPP DUTs | | And IPv4 forwarding initialized in a 3-node circular topology @@ -149,14 +149,14 @@ | | ... | Find throughput with partial drop rate for 9000B frames by using | | ... | binary search with threshold of 5,000pps. Loss acceptance is set to | | ... | 0.5 percent of transmitted packets. -| | [Tags] | 1_THREAD_NOHTT_RSS_1 | SINGLE_THREAD | PDR +| | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | PDR | | ${framesize}= | Set Variable | 9000 | | ${min_rate}= | Set Variable | 5000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '1' worker threads and rss '1' without HTT to all DUTs +| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Apply startup configuration on all VPP DUTs | | And IPv4 forwarding initialized in a 3-node circular topology @@ -167,18 +167,18 @@ | | ... | ${glob_loss_acceptance} | | ... | ${glob_loss_acceptance_type} -| Find NDR with 2 cores and rss 1 by using RFC2544 binary search and 64B frames through IPv4 forwarding in 3-node topology +| Find NDR with 2 cores and rxqueues 1 by using RFC2544 binary search and 64B frames through IPv4 forwarding in 3-node topology | | [Documentation] | | ... | Find throughput on 2 cores with non drop rate for 64B frames by using | | ... | binary search with threshold 0.1Mpps. -| | [Tags] | 2_THREAD_NOHTT_RSS_1 | MULTI_THREAD | NDR +| | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | NDR | | ${framesize}= | Set Variable | 64 | | ${min_rate}= | Set Variable | 100000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_64B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '2' worker threads and rss '1' without HTT to all DUTs +| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -188,19 +188,19 @@ | | ... | ${min_rate} | ${max_rate} | | ... | ${threshold} -| Find PDR with 2 cores and rss 1 by using RFC2544 binary search and 64B frames through IPv4 forwarding in 3-node topology +| Find PDR with 2 cores and rxqueues 1 by using RFC2544 binary search and 64B frames through IPv4 forwarding in 3-node topology | | [Documentation] | | ... | Find throughput on 2 cores with partial drop rate for 64B frames by | | ... | using binary search with threshold 0.1Mpps. Loss acceptance is set to | | ... | 0.5 percent of transmitted packets. -| | [Tags] | 2_THREAD_NOHTT_RSS_1 | MULTI_THREAD | PDR +| | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | PDR | | ${framesize}= | Set Variable | 64 | | ${min_rate}= | Set Variable | 100000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_64B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '2' worker threads and rss '1' without HTT to all DUTs +| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -212,18 +212,18 @@ | | ... | ${glob_loss_acceptance} | | ... | ${glob_loss_acceptance_type} -| Find NDR with 2 cores and rss 1 by using RFC2544 binary search and 1518B frames through IPv4 forwarding in 3-node topology +| Find NDR with 2 cores and rxqueues 1 by using RFC2544 binary search and 1518B frames through IPv4 forwarding in 3-node topology | | [Documentation] | | ... | Find throughput on 2 cores with non drop rate for 1518B frames by | | ... | using binary search with threshold 10,000pps. -| | [Tags] | 2_THREAD_NOHTT_RSS_1 | MULTI_THREAD | NDR +| | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | NDR | | ${framesize}= | Set Variable | 1518 | | ${min_rate}= | Set Variable | 10000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '2' worker threads and rss '1' without HTT to all DUTs +| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -233,19 +233,19 @@ | | ... | ${min_rate} | ${max_rate} | | ... | ${threshold} -| Find PDR with 2 cores and rss 1 by using RFC2544 binary search and 1518B frames through IPv4 forwarding in 3-node topology +| Find PDR with 2 cores and rxqueues 1 by using RFC2544 binary search and 1518B frames through IPv4 forwarding in 3-node topology | | [Documentation] | | ... | Find throughput on 2 cores with partial drop rate for 1518B frames by | | ... | using binary search with threshold 10,000pps. Loss acceptance is set | | ... | to 0.5 percent of transmitted packets. -| | [Tags] | 2_THREAD_NOHTT_RSS_1 | MULTI_THREAD | PDR +| | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | PDR | | ${framesize}= | Set Variable | 1518 | | ${min_rate}= | Set Variable | 10000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '2' worker threads and rss '1' without HTT to all DUTs +| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -257,18 +257,18 @@ | | ... | ${glob_loss_acceptance} | | ... | ${glob_loss_acceptance_type} -| Find NDR with 2 cores and rss 1 by using RFC2544 binary search and 9000B frames through IPv4 forwarding in 3-node topology +| Find NDR with 2 cores and rxqueues 1 by using RFC2544 binary search and 9000B frames through IPv4 forwarding in 3-node topology | | [Documentation] | | ... | Find throughput on 2 cores with non drop rate for 9000B frames by | | ... | using binary search with threshold 5,000pps. -| | [Tags] | 2_THREAD_NOHTT_RSS_1 | MULTI_THREAD | NDR +| | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | NDR | | ${framesize}= | Set Variable | 9000 | | ${min_rate}= | Set Variable | 5000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '2' worker threads and rss '1' without HTT to all DUTs +| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Apply startup configuration on all VPP DUTs | | And IPv4 forwarding initialized in a 3-node circular topology @@ -277,19 +277,19 @@ | | ... | ${min_rate} | ${max_rate} | | ... | ${threshold} -| Find PDR with 2 cores and rss 1 by using RFC2544 binary search and 9000B frames through IPv4 forwarding in 3-node topology +| Find PDR with 2 cores and rxqueues 1 by using RFC2544 binary search and 9000B frames through IPv4 forwarding in 3-node topology | | [Documentation] | | ... | Find throughput on 2 cores with partial drop rate for 9000B frames by | | ... | using binary search with threshold 5,000pps. Loss acceptance is set | | ... | to 0.5 percent of transmitted packets. -| | [Tags] | 2_THREAD_NOHTT_RSS_1 | MULTI_THREAD | PDR +| | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | PDR | | ${framesize}= | Set Variable | 9000 | | ${min_rate}= | Set Variable | 5000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '2' worker threads and rss '1' without HTT to all DUTs +| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Apply startup configuration on all VPP DUTs | | And IPv4 forwarding initialized in a 3-node circular topology @@ -300,18 +300,18 @@ | | ... | ${glob_loss_acceptance} | | ... | ${glob_loss_acceptance_type} -| Find NDR with 4 cores and rss 2 by using RFC2544 binary search and 64B frames through IPv4 forwarding in 3-node topology +| Find NDR with 4 cores and rxqueues 2 by using RFC2544 binary search and 64B frames through IPv4 forwarding in 3-node topology | | [Documentation] -| | ... | Find throughput on 4 cores and rss 2 with non drop rate for 64B +| | ... | Find throughput on 4 cores and rxqueues 2 with non drop rate for 64B | | ... | frames by using binary search with threshold 0.1Mpps. -| | [Tags] | 4_THREAD_NOHTT_RSS_2 | MULTI_THREAD | NDR +| | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | NDR | | ${framesize}= | Set Variable | 64 | | ${min_rate}= | Set Variable | 100000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_64B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '4' worker threads and rss '2' without HTT to all DUTs +| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -321,19 +321,19 @@ | | ... | ${min_rate} | ${max_rate} | | ... | ${threshold} -| Find PDR with 4 cores and rss 2 by using RFC2544 binary search and 64B frames through IPv4 forwarding in 3-node topology +| Find PDR with 4 cores and rxqueues 2 by using RFC2544 binary search and 64B frames through IPv4 forwarding in 3-node topology | | [Documentation] -| | ... | Find throughput on 4 cores and rss 2 with partial drop rate for 64B +| | ... | Find throughput on 4 cores and rxqueues 2 with partial drop rate for 64B | | ... | frames by using binary search with threshold 0.1Mpps. Loss acceptance | | ... | is set to 0.5 percent of transmitted packets. -| | [Tags] | 4_THREAD_NOHTT_RSS_2 | MULTI_THREAD | PDR +| | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | PDR | | ${framesize}= | Set Variable | 64 | | ${min_rate}= | Set Variable | 100000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_64B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '4' worker threads and rss '2' without HTT to all DUTs +| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -345,18 +345,18 @@ | | ... | ${glob_loss_acceptance} | | ... | ${glob_loss_acceptance_type} -| Find NDR with 4 cores and rss 2 by using RFC2544 binary search and 1518B frames through IPv4 forwarding in 3-node topology +| Find NDR with 4 cores and rxqueues 2 by using RFC2544 binary search and 1518B frames through IPv4 forwarding in 3-node topology | | [Documentation] -| | ... | Find throughput on 4 cores and rss 2 with non drop rate for 1518B +| | ... | Find throughput on 4 cores and rxqueues 2 with non drop rate for 1518B | | ... | frames by using binary search with threshold 10,000pps. -| | [Tags] | 4_THREAD_NOHTT_RSS_2 | MULTI_THREAD | NDR +| | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | NDR | | ${framesize}= | Set Variable | 1518 | | ${min_rate}= | Set Variable | 10000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '4' worker threads and rss '2' without HTT to all DUTs +| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -366,19 +366,19 @@ | | ... | ${min_rate} | ${max_rate} | | ... | ${threshold} -| Find PDR with 4 cores and rss 2 by using RFC2544 binary search and 1518B frames through IPv4 forwarding in 3-node topology +| Find PDR with 4 cores and rxqueues 2 by using RFC2544 binary search and 1518B frames through IPv4 forwarding in 3-node topology | | [Documentation] -| | ... | Find throughput on 4 cores and rss 2 with partial drop rate for 1518B +| | ... | Find throughput on 4 cores and rxqueues 2 with partial drop rate for 1518B | | ... | frames by using binary search with threshold 10,000pps. Loss | | ... | acceptance is set to 0.5 percent of transmitted packets. -| | [Tags] | 4_THREAD_NOHTT_RSS_2 | MULTI_THREAD | PDR +| | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | PDR | | ${framesize}= | Set Variable | 1518 | | ${min_rate}= | Set Variable | 10000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '4' worker threads and rss '2' without HTT to all DUTs +| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Add No Multi Seg to all DUTs | | And Apply startup configuration on all VPP DUTs @@ -390,18 +390,18 @@ | | ... | ${glob_loss_acceptance} | | ... | ${glob_loss_acceptance_type} -| Find NDR with 4 cores and rss 2 by using RFC2544 linear search and 9000B frames through IPv4 forwarding in 3-node topology +| Find NDR with 4 cores and rxqueues 2 by using RFC2544 linear search and 9000B frames through IPv4 forwarding in 3-node topology | | [Documentation] -| | ... | Find throughput on 4 cores and rss 2 with non drop rate for 9000B +| | ... | Find throughput on 4 cores and rxqueues 2 with non drop rate for 9000B | | ... | frames by using binary search with threshold 5,000pps. -| | [Tags] | 4_THREAD_NOHTT_RSS_2 | MULTI_THREAD | NDR +| | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | NDR | | ${framesize}= | Set Variable | 9000 | | ${min_rate}= | Set Variable | 5000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '4' worker threads and rss '2' without HTT to all DUTs +| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Apply startup configuration on all VPP DUTs | | And IPv4 forwarding initialized in a 3-node circular topology @@ -410,19 +410,19 @@ | | ... | ${min_rate} | ${max_rate} | | ... | ${threshold} -| Find PDR with 4 cores and rss 2 by using RFC2544 linear search and 9000B frames through IPv4 forwarding in 3-node topology +| Find PDR with 4 cores and rxqueues 2 by using RFC2544 linear search and 9000B frames through IPv4 forwarding in 3-node topology | | [Documentation] -| | ... | Find throughput on 4 cores and rss 2 with partial drop rate for 9000B +| | ... | Find throughput on 4 cores and rxqueues 2 with partial drop rate for 9000B | | ... | frames by using binary search with threshold 5,000pps. Loss | | ... | acceptance is set to 0.5 percent of transmitted packets. -| | [Tags] | 4_THREAD_NOHTT_RSS_2 | MULTI_THREAD | PDR +| | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | PDR | | ${framesize}= | Set Variable | 9000 | | ${min_rate}= | Set Variable | 5000 | | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B} | | ${binary_min}= | Set Variable | ${min_rate} | | ${binary_max}= | Set Variable | ${max_rate} | | ${threshold}= | Set Variable | ${min_rate} -| | Given Add '4' worker threads and rss '2' without HTT to all DUTs +| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs | | And Add all PCI devices to all DUTs | | And Apply startup configuration on all VPP DUTs | | And IPv4 forwarding initialized in a 3-node circular topology |