# VideoMark 20221105
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## キャッシュサーバの有無と QoE 値の関係性
AbemaTV が利用する Akamai のキャッシュサーバは CTB 側にあるが、計測結果も CTB が高い結果となっている。逆に低い ISP は OCN である。
Netflix のキャッシュサーバは BTV, MCT, WAIWAI 側にあるが、これらの ISP での QoE 値はいずれも高く維持されている。逆に低い ISP は CTB であり、OCN は中間的な結果で検討している。
YouTube については GGC キャッシュのある BTV, MCT, WAIWAI 側とそれ以外に分けても有意な傾向が判別されない。今回計測している対象の VOD 動画の配信に GGC キャッシュの効果は見られない可能性がある。
## ISP/端末 による QoE 値の違い
1 時間平均ですとさが分かりにくかったので 1 日毎の平均とすることで連続的に ISP/端末による違いがあることを確認しました
## MCT 様の QoE 値が低い件
IIJ 東京/大阪/福岡での計測を含めて計測開始した 11/11 以降、全体平均としては MCT 様に代わって CTB, OCN 様の方が低い結果になっています。
MCT 様の計測結果は YouTube では低く、AbemaTV では低くない、Netflix では高い傾向にあります。
## Netflix の視聴品質差異の確認
1 時間毎ではすべての計測が 4.91 近くに集まっていて変化が見えない、変化を計測できないのではと言う件ですが、1 日毎平均にした上で縦軸を調整すると ISP 間での Netflix 品質の違いが明確に出ています (連続的な結果であるため計測誤差ではない)。CTB での計測結果が有意に低い形です。
このような形で Netflix 視聴時の ISP による品質の違いが計測できており、IX 接続などで品質改善/低下があればこのような傾向に変化が見られる可能性があります
## YouTube, AbemaTV の ISP
YouTube では比較的 ISP 間の差は小さいが、先に挙げた MCT では有意に低く、CTB も比較的低い結果が得られています。
AbemaTV では OCN の計測値が有意に低い結果が得られています
Netflix だけではなく、YouTube, AbemaTV においても回線・経路による違いが見られています。
それぞれの回線の設置場所から各動画配信サービスの CND (またはキャッシュサーバ) との経路の品質を別途連続的に計測・監視頂き、それとの相関を見て頂いたり、IX 切替時にはこれらの傾向がどのような変化を示すかを比較頂くことを想定しています。
## BTV,WAIWAI — IIJ 福岡の周期的品質低下
BTV, WAIWAI 様から IIJ 福岡の計測は毎晩 9 時頃に QoE 値の低下が見られます。何らかの周期的なネットワーク変動がある可能性があります。
YouTube, Netflix, AbemaTV などのサービスには影響がないのでこの経路を利用するサービスにのみ影響するものではありますが、もし同一の経路を利用するサービスがあればそれらの利用についても品質の低下が生じている可能性があります。
## OCN の Osaka の計測値の欠損可能性確認
平均処理無しの散布図が示す通り、連続的に QoE 値が低い計測結果が得られています。原因は未調査です。
## IIJ 東京/大阪/福岡拠点との経路
各動画配信サービスサーバとの経路を確認し、QoE 値との相関の有無や経路の特徴がないか確認した。
東京 133.110.240.98
大阪 133.167.41.23
福岡 210.191.83.143
AbemaTV CDN ds-linear-abematv.akamaized.net
(YouTube, Netflix は接続先 CDN のホスト名が固定ではないため確認対象外)
気付いた特徴:
- RTT やホップ数と QoE には単純な関係性はない
- 動画再生品質には低域や RTT 変動 (ジッタ) も影響するのでそのこと自体には不思議はない
- 同じ BBIX 101.203.88.162 を通過するのに BIGLOBE 側に流れる場合と QTnet に流れる場合がある
- 地理的に近い福岡サーバに対しても東京や大阪を経由した経路となっている場合がある
- 大阪は IIJ 様のサーバではなく Sakura のサーバ
単純な経路情報との比較程度では各拠点に設置した動画配信サービスでの QoE 値の違いを説明することは出来ない。経路毎の通信帯域や RTT 変動などを調べていくことで QoE 低下要因などを推察できる可能性はあるが、明らかに経路・品質と QoE 計測値に矛盾がなければ計測としては問題ないと考える。
一部経路の要約:
```
BTV tokyo, fukuoka > osaka
tokyo 23.871ms 22.310ms osk004bb00.IIJ.Net -> tky001bb00.IIJ.Net
osaka 13.289ms 17.028ms JPIX 103.246.232.113
fukuoka 40.798ms 40.400ms BBIX 101.203.88.162 -> BIGLOBE 61.203.88.162
CTB osaka > tokyo > fukuoka
tokyo 19.995ms 21.606ms toky009bb00.IIJ.Net
osaka 10.408ms 10.900ms MULTIFEED 210.173.184.50
fukuoka 34.201ms 35.992ms BBIX 101.203.88.162 -> QTnet 61.203.193.133
MCT fukuoka, tokyo > osaka
tokyo 22.609ms Softbank 165.76.181.121 -> tky001b00.IIJ.Net
osaka 17.061ms JPIX 103.246.232.113
fukuoka 32.796ms BBIX 101.203.88.162 -> QTnet 61.203.193.137
```
以下、各 ISP に配置した端末からの tracepath 結果ログ:
### BTV
```
sodium@iij-3q1-290150:~$ curl http://ipwho.is/?fields=connection
tracepath 133.110.240.98
tracepath 133.167.41.23
tracepath 210.191.83.143
tracepath ds-linear-abematv.akamaized.net
{"connection":{"asn":18135,"org":"BTV Cable television","isp":"BTV Cable Television CO.,LTD.","domain":"btvm.ne.jp"}} 1?: [LOCALHOST] pmtu 1500
1: no reply
2: no reply
3: no reply
4: 219-103-1-114.btvm.ne.jp 0.789ms asymm 3
5: 219-103-1-41.btvm.ne.jp 0.890ms asymm 4
6: 219-103-1-58.btvm.ne.jp 1.123ms asymm 4
7: osk004bb00.IIJ.Net 16.010ms asymm 6
8: tky001bb00.IIJ.Net 21.404ms asymm 7
9: sri001bb01.IIJ.Net 24.657ms asymm 8
10: sri001bb01.IIJ.Net 24.753ms asymm 8
11: 210.138.14.170 23.717ms asymm 10
12: 210.138.14.170 23.767ms asymm 10
13: 130.99.159.133.rev.iijgio.jp 22.909ms asymm 11
14: no reply
15: no reply
16: 98.240.110.133.static.iijgio.jp 23.871ms reached
Resume: pmtu 1500 hops 16 back 15
1?: [LOCALHOST] pmtu 1500
1: no reply
2: no reply
3: no reply
4: 219-103-1-114.btvm.ne.jp 0.976ms asymm 3
5: 219-103-1-37.btvm.ne.jp 1.115ms asymm 4
6: 219-103-1-58.btvm.ne.jp 0.860ms asymm 4
7: 103.246.232.113 31.227ms asymm 5
8: vps-os1a-rt01-nrt3b.bb.sakura.ad.jp 36.491ms
9: 192.168.20.15 16.299ms asymm 8
10: os3-358-12269.vs.sakura.ne.jp 13.289ms reached
Resume: pmtu 1500 hops 10 back 9
1?: [LOCALHOST] pmtu 1500
1: no reply
2: no reply
3: no reply
4: 219-103-1-114.btvm.ne.jp 0.993ms asymm 3
5: 219-103-1-41.btvm.ne.jp 0.838ms asymm 4
6: 219-103-1-186.btvm.ne.jp 1.911ms asymm 5
7: 219-103-0-121.btvm.ne.jp 21.512ms asymm 5
8: 101.203.88.162 23.762ms asymm 6
9: 61.203.193.137 41.283ms asymm 7
10: 61.203.193.54 59.932ms asymm 8
11: 210.191.83.250 38.763ms asymm 9
12: 210.191.83.143 40.798ms reached
Resume: pmtu 1500 hops 12 back 11
1?: [LOCALHOST] pmtu 1500
1: no reply
2: no reply
3: no reply
4: 219-103-1-114.btvm.ne.jp 1.138ms asymm 3
5: 219-103-1-37.btvm.ne.jp 0.959ms asymm 4
6: 219-103-1-57.btvm.ne.jp 0.914ms asymm 4
7: 202.90.14.35 22.569ms reached
Resume: pmtu 1500 hops 7 back 6
```
```
sodium@iij-3q1-290161:~$ curl http://ipwho.is/?fields=connection
tracepath 133.110.240.98
tracepath 133.167.41.23
tracepath 210.191.83.143
tracepath ds-linear-abematv.akamaized.net
{"connection":{"asn":18135,"org":"BTV Cable television","isp":"BTV Cable Television CO.,LTD.","domain":"btvm.ne.jp"}} 1?: [LOCALHOST] pmtu 1500
1: no reply
2: no reply
3: no reply
4: 219-103-1-114.btvm.ne.jp 2.064ms asymm 3
5: 219-103-1-37.btvm.ne.jp 1.599ms asymm 4
6: 219-103-1-58.btvm.ne.jp 1.311ms asymm 4
7: osk011bb01.IIJ.Net 14.188ms asymm 6
8: tky001bb00.IIJ.Net 21.752ms asymm 7
9: sri001bb01.IIJ.Net 25.125ms asymm 8
10: sri001bb01.IIJ.Net 25.752ms asymm 8
11: 210.138.14.170 23.973ms asymm 10
12: 210.138.14.170 23.576ms asymm 10
13: 130.99.159.133.rev.iijgio.jp 24.161ms asymm 11
14: no reply
15: no reply
16: 98.240.110.133.static.iijgio.jp 22.310ms reached
Resume: pmtu 1500 hops 16 back 15
1?: [LOCALHOST] pmtu 1500
1: no reply
2: no reply
3: no reply
4: 219-103-1-114.btvm.ne.jp 1.593ms asymm 3
5: 219-103-1-37.btvm.ne.jp 1.721ms asymm 4
6: 103.246.232.113 15.591ms asymm 5
7: 103.246.232.113 15.903ms asymm 5
8: vps-os1a-rt01-nrt4b.bb.sakura.ad.jp 14.731ms asymm 7
9: 192.168.20.15 17.171ms
10: os3-358-12269.vs.sakura.ne.jp 17.028ms reached
Resume: pmtu 1500 hops 10 back 10
1?: [LOCALHOST] pmtu 1500
1: no reply
2: no reply
3: no reply
4: 219-103-1-114.btvm.ne.jp 1.713ms asymm 3
5: 219-103-1-41.btvm.ne.jp 1.810ms asymm 4
6: 219-103-1-57.btvm.ne.jp 1.903ms asymm 4
7: 101.203.88.162 24.915ms asymm 6
8: 61.203.193.137 39.401ms asymm 7
9: 61.203.193.58 39.398ms asymm 8
10: 210.191.83.250 61.244ms asymm 9
11: 210.191.83.250 40.488ms asymm 9
12: 210.191.83.143 40.400ms reached
Resume: pmtu 1500 hops 12 back 11
1?: [LOCALHOST] pmtu 1500
1: no reply
2: no reply
3: no reply
4: 219-103-1-114.btvm.ne.jp 1.782ms asymm 3
5: 219-103-1-41.btvm.ne.jp 1.869ms asymm 4
6: 210.171.224.15 22.045ms asymm 5
7: 202.90.14.35 22.327ms reached
Resume: pmtu 1500 hops 7 back 6
```
### CTB
```
sodium@iij-3q1-290136:~$ curl http://ipwho.is/?fields=connection
tracepath 133.110.240.98
tracepath 133.167.41.23
tracepath 210.191.83.143
tracepath ds-linear-abematv.akamaized.net
{"connection":{"asn":23780,"org":"CTB Media Inc.","isp":"CTB Media Inc.","domain":"ctb.ne.jp"}} 1?: [LOCALHOST] pmtu 1500
1: dhcp33-001.ctb.ne.jp 4.208ms
1: dhcp33-001.ctb.ne.jp 2.372ms
2: 211.15.112.34 1.699ms
3: 211.15.112.101 16.650ms
4: 210.173.173.153 16.539ms
5: tky009bb00.IIJ.Net 17.092ms
6: tky009bb01.IIJ.Net 19.550ms
7: sri001bb01.IIJ.Net 18.566ms
8: sri001ip60.IIJ.Net 17.646ms
9: 210.138.14.170 19.317ms
10: 130.99.159.133.rev.iijgio.jp 20.665ms
11: no reply
12: no reply
13: no reply
14: 98.240.110.133.static.iijgio.jp 19.995ms reached
Resume: pmtu 1500 hops 14 back 14
1?: [LOCALHOST] pmtu 1500
1: dhcp33-001.ctb.ne.jp 9.984ms
1: dhcp33-001.ctb.ne.jp 11.881ms
2: 211.15.112.34 0.900ms
3: 211.15.112.22 3.036ms asymm 2
4: 211.15.112.25 10.488ms asymm 3
5: 210.173.184.50 16.755ms asymm 4
6: osnrt4b-drt3.bb.sakura.ad.jp 17.649ms
7: vps-os1a-rt01-nrt4b.bb.sakura.ad.jp 11.254ms
8: 192.168.20.15 19.371ms
9: os3-358-12269.vs.sakura.ne.jp 10.408ms reached
Resume: pmtu 1500 hops 9 back 9
1?: [LOCALHOST] pmtu 1500
1: dhcp33-001.ctb.ne.jp 3.899ms
1: dhcp33-001.ctb.ne.jp 2.750ms
2: 211.15.112.34 20.651ms
3: 211.15.112.101 16.875ms
4: 101.203.88.162 19.268ms
5: 61.203.193.133 31.454ms
6: 61.203.193.54 32.924ms
7: 210.191.83.250 34.092ms
8: no reply
9: 210.191.83.143 34.201ms reached
Resume: pmtu 1500 hops 9 back 9
1?: [LOCALHOST] pmtu 1500
1: dhcp33-001.ctb.ne.jp 2.027ms
1: dhcp33-001.ctb.ne.jp 2.119ms
2: 211.15.112.34 1.634ms
3: 211.15.112.22 1.297ms asymm 2
4: 211.15.112.25 11.199ms asymm 3
5: no reply
6: a23-52-3-58.deploy.static.akamaitechnologies.com 10.177ms reached
Resume: pmtu 1500 hops 6 back 5
```
```
sodium@iij-3q1-290141:~$ curl http://ipwho.is/?fields=connection
tracepath 133.110.240.98
tracepath 133.167.41.23
tracepath 210.191.83.143
tracepath ds-linear-abematv.akamaized.net
{"connection":{"asn":23780,"org":"CTB Media Inc.","isp":"CTB Media Inc.","domain":"ctb.ne.jp"}} 1?: [LOCALHOST] pmtu 1500
1: dhcp33-001.ctb.ne.jp 1.791ms
1: dhcp33-001.ctb.ne.jp 4.546ms
2: 211.15.112.34 1.089ms
3: 211.15.112.17 18.283ms
4: 210.173.173.153 18.053ms
5: tky001bb01.IIJ.Net 18.487ms
6: tky009bb01.IIJ.Net 21.390ms
7: sri001bb01.IIJ.Net 20.829ms
8: sri001ip60.IIJ.Net 19.732ms
9: 210.138.14.170 22.401ms
10: 130.99.159.133.rev.iijgio.jp 22.330ms
11: no reply
12: no reply
13: no reply
14: 98.240.110.133.static.iijgio.jp 21.606ms reached
Resume: pmtu 1500 hops 14 back 14
1?: [LOCALHOST] pmtu 1500
1: dhcp33-001.ctb.ne.jp 5.920ms
1: dhcp33-001.ctb.ne.jp 1.793ms
2: 211.15.112.34 9.422ms
3: 211.15.112.22 5.985ms asymm 2
4: 211.15.112.25 10.449ms asymm 3
5: 210.173.184.50 10.805ms asymm 4
6: osnrt3b-drt3.bb.sakura.ad.jp 12.719ms
7: vps-os1a-rt01-nrt3b.bb.sakura.ad.jp 10.638ms asymm 6
8: 192.168.20.15 81.876ms
9: os3-358-12269.vs.sakura.ne.jp 10.900ms reached
Resume: pmtu 1500 hops 9 back 9
1?: [LOCALHOST] pmtu 1500
1: dhcp33-001.ctb.ne.jp 2.023ms
1: dhcp33-001.ctb.ne.jp 2.709ms
2: 211.15.112.34 1.256ms
3: 211.15.112.17 18.508ms
4: 101.203.88.162 21.584ms
5: 61.203.193.137 33.660ms
6: 61.203.193.54 35.248ms
7: 210.191.83.250 35.365ms
8: no reply
9: 210.191.83.143 35.992ms reached
Resume: pmtu 1500 hops 9 back 9
1?: [LOCALHOST] pmtu 1500
1: dhcp33-001.ctb.ne.jp 1.770ms
1: dhcp33-001.ctb.ne.jp 1.333ms
2: 211.15.112.34 0.949ms
3: 211.15.112.22 7.714ms asymm 2
4: 211.15.112.25 11.204ms asymm 3
5: no reply
6: a23-52-3-43.deploy.static.akamaitechnologies.com 10.020ms reached
Resume: pmtu 1500 hops 6 back 5
```
### MCT
```
sodium@iij-3q1-290105:~$ curl http://ipwho.is/?fields=connection
tracepath 133.110.240.98
tracepath 133.167.41.23
tracepath 210.191.83.143
tracepath ds-linear-abematv.akamaized.net
{"connection":{"asn":45687,"org":"Minamikyusyu CableTV Net Inc.","isp":"Minamikyusyu CableTV Net Inc.","domain":"mct.jp"}} 1?: [LOCALHOST] pmtu 1500
1: gateway202.mct.ne.jp 2.485ms
1: gateway202.mct.ne.jp 3.348ms
2: 27.54.96.106 1.121ms asymm 3
3: 27.54.96.69 0.757ms
4: 27.54.96.72 3.233ms asymm 3
5: 165.76.181.121 18.002ms asymm 4
6: no reply
7: 202.232.1.73 24.007ms asymm 8
8: tky001bb00.IIJ.Net 21.108ms asymm 9
9: tky001bb00.IIJ.Net 20.982ms
10: sri001bb00.IIJ.Net 22.473ms
11: 210.138.14.170 22.561ms asymm 12
12: 210.138.14.170 22.151ms
13: 130.99.159.133.rev.iijgio.jp 22.168ms
14: no reply
15: no reply
16: 98.240.110.133.static.iijgio.jp 22.609ms reached
Resume: pmtu 1500 hops 16 back 17
1?: [LOCALHOST] pmtu 1500
1: gateway202.mct.ne.jp 2.309ms
1: gateway202.mct.ne.jp 3.615ms
2: 27.54.96.106 1.188ms asymm 3
3: 27.54.96.69 0.906ms
4: 103.246.232.113 16.854ms
5: 103.246.232.113 18.129ms asymm 4
6: osnrt4b-hrt1.bb.sakura.ad.jp 22.632ms
7: vps-os1a-rt01-nrt3b.bb.sakura.ad.jp 17.845ms
8: os3-358-12269.vs.sakura.ne.jp 17.061ms reached
Resume: pmtu 1500 hops 8 back 8
1?: [LOCALHOST] pmtu 1500
1: gateway202.mct.ne.jp 2.245ms
1: gateway202.mct.ne.jp 2.456ms
2: 27.54.96.106 1.014ms asymm 3
3: 27.54.96.65 1.724ms
4: 101.203.88.162 17.976ms
5: 101.203.88.162 18.194ms asymm 4
6: 61.203.193.137 35.269ms asymm 5
7: 210.191.83.250 34.532ms
8: 210.191.83.250 33.734ms asymm 7
9: 210.191.83.143 32.796ms reached
Resume: pmtu 1500 hops 9 back 9
1?: [LOCALHOST] pmtu 1500
1: gateway202.mct.ne.jp 2.405ms
1: gateway202.mct.ne.jp 5.241ms
2: 27.54.96.106 1.138ms asymm 3
3: 27.54.96.65 1.689ms
4: 165.76.181.121 18.342ms
5: 165.76.181.121 19.343ms asymm 4
6: no reply
7: no reply
8: a23-54-124-112.deploy.static.akamaitechnologies.com 18.566ms reached
Resume: pmtu 1500 hops 8 back 7
```
### OCN
```
sodium@iij-3q1-290104:~$ curl http://ipwho.is/?fields=connection
tracepath 133.110.240.98
tracepath 133.167.41.23
tracepath 210.191.83.143
tracepath ds-linear-abematv.akamaized.net
{"connection":{"asn":24277,"org":"Okinawa Cable Network Inc.","isp":"Okinawa Cable Network Inc.","domain":"nirai.ne.jp"}} 1?: [LOCALHOST] pmtu 1500
1: _gateway 0.817ms asymm 2
1: _gateway 0.871ms asymm 2
2: no reply
3: no reply
4: no reply
5: 211.6.90.209 13.074ms
6: 61.207.13.189 13.622ms
7: 153.149.219.49 21.403ms
8: 153.149.219.146 21.524ms
9: 221.184.13.6 27.108ms
10: 210.173.179.10 34.506ms
11: osk004bb00.IIJ.Net 31.982ms asymm 10
12: tky009bb01.IIJ.Net 34.373ms asymm 8
13: sri001bb01.IIJ.Net 36.533ms asymm 9
14: sri001ip60.IIJ.Net 33.570ms asymm 10
15: 210.138.14.170 33.484ms asymm 11
16: 130.99.159.133.rev.iijgio.jp 32.914ms asymm 12
17: no reply
18: no reply
19: no reply
20: 98.240.110.133.static.iijgio.jp 34.358ms reached
Resume: pmtu 1500 hops 20 back 16
1?: [LOCALHOST] pmtu 1500
1: _gateway 0.872ms asymm 2
1: _gateway 0.845ms asymm 2
2: no reply
3: no reply
4: no reply
5: no reply
6: as9370.ix.jpix.ad.jp 26.898ms asymm 5
7: oshrt1-tkort4.bb.sakura.ad.jp 33.746ms asymm 6
8: osnrt3b-hrt1.bb.sakura.ad.jp 37.257ms asymm 7
9: vps-os1a-rt01-nrt4b.bb.sakura.ad.jp 35.177ms asymm 8
10: 192.168.20.15 39.802ms asymm 9
11: os3-358-12269.vs.sakura.ne.jp 33.801ms reached
Resume: pmtu 1500 hops 11 back 10
1?: [LOCALHOST] pmtu 1500
1: _gateway 0.782ms asymm 2
1: _gateway 0.714ms asymm 2
2: no reply
3: no reply
4: no reply
5: 101.203.88.162 28.341ms
6: 61.203.193.137 43.035ms
7: 61.203.193.54 45.626ms
8: 210.191.83.250 43.913ms
9: no reply
10: 210.191.83.143 44.333ms reached
Resume: pmtu 1500 hops 10 back 10
1?: [LOCALHOST] pmtu 1500
1: _gateway 0.724ms asymm 2
1: _gateway 0.857ms asymm 2
2: no reply
3: no reply
4: no reply
5: no reply
6: 211.120.227.193 0.953ms asymm 5
7: 211.120.225.42 1.658ms
8: a211-120-225-249.deploy.akamaitechnologies.com 0.956ms reached
Resume: pmtu 1500 hops 8 back 8
```
```
sodium@iij-3q1-290142:~$ curl http://ipwho.is/?fields=connection
tracepath 133.110.240.98
tracepath 133.167.41.23
tracepath 210.191.83.143
tracepath ds-linear-abematv.akamaized.net
{"connection":{"asn":24277,"org":"Okinawa Cable Network Inc.","isp":"Okinawa Cable Network Inc.","domain":"nirai.ne.jp"}} 1?: [LOCALHOST] pmtu 1500
1: _gateway 0.826ms asymm 2
1: _gateway 0.958ms asymm 2
2: no reply
3: no reply
4: no reply
5: 211.6.90.209 13.452ms
6: 61.207.13.193 13.621ms
7: 153.149.219.49 22.283ms
8: 125.170.96.34 27.266ms
9: 221.184.13.6 24.191ms
10: 210.173.179.10 31.522ms
11: osk004bb01.IIJ.Net 31.341ms asymm 9
12: tky009bb01.IIJ.Net 31.598ms asymm 8
13: sri001bb01.IIJ.Net 33.578ms asymm 9
14: sri001ip60.IIJ.Net 35.817ms asymm 10
15: 210.138.14.170 35.577ms asymm 11
16: 130.99.159.133.rev.iijgio.jp 36.462ms asymm 12
17: no reply
18: no reply
19: no reply
20: 98.240.110.133.static.iijgio.jp 33.397ms reached
Resume: pmtu 1500 hops 20 back 16
1?: [LOCALHOST] pmtu 1500
1: _gateway 0.894ms asymm 2
1: _gateway 0.718ms asymm 2
2: no reply
3: no reply
4: no reply
5: no reply
6: as9370.ix.jpix.ad.jp 26.923ms asymm 5
7: oshrt1-tkort4.bb.sakura.ad.jp 33.599ms asymm 6
8: osnrt4b-hrt1.bb.sakura.ad.jp 46.476ms asymm 7
9: vps-os1a-rt01-nrt4b.bb.sakura.ad.jp 34.103ms asymm 8
10: 192.168.20.15 62.883ms asymm 9
11: os3-358-12269.vs.sakura.ne.jp 33.915ms reached
Resume: pmtu 1500 hops 11 back 10
1?: [LOCALHOST] pmtu 1500
1: _gateway 0.803ms asymm 2
1: _gateway 0.760ms asymm 2
2: no reply
3: no reply
4: no reply
5: 101.203.88.162 28.461ms
6: 61.203.193.137 44.354ms
7: 61.203.193.58 43.568ms
8: 210.191.83.250 43.932ms
9: no reply
10: 210.191.83.143 44.245ms reached
Resume: pmtu 1500 hops 10 back 10
1?: [LOCALHOST] pmtu 1500
1: _gateway 0.827ms asymm 2
1: _gateway 0.775ms asymm 2
2: no reply
3: no reply
4: no reply
5: no reply
6: 211.120.227.193 0.995ms asymm 5
7: 211.120.225.42 1.813ms
8: a211-120-225-250.deploy.akamaitechnologies.com 0.792ms reached
Resume: pmtu 1500 hops 8 back 8
```
### WAIWAI
```
sodium@iij-3q1-290145:~$ curl http://ipwho.is/?fields=connection
tracepath 133.110.240.98
tracepath 133.167.41.23
tracepath 210.191.83.143
tracepath ds-linear-abematv.akamaized.net
{"connection":{"asn":37892,"org":"Cable Media WAIWAI Co.,Ltd.","isp":"Cable Media WAIWAI Co.,Ltd.","domain":"wainet.ne.jp"}} 1?: [LOCALHOST] pmtu 1500
1: s06-d-171-254.wainet.ne.jp 7.919ms
1: s06-d-171-254.wainet.ne.jp 2.666ms
2: 124.247.7.178 1.303ms
3: 111.108.6.109 15.861ms
4: 27.86.32.133 16.411ms
5: 27.86.41.86 15.061ms
6: 202.232.1.45 24.540ms asymm 8
7: osk004bb00.IIJ.Net 22.162ms
8: tky001bb00.IIJ.Net 41.654ms asymm 6
9: sri001bb01.IIJ.Net 24.769ms asymm 8
10: sri001ip60.IIJ.Net 23.426ms asymm 8
11: 210.138.14.170 23.520ms asymm 9
12: 130.99.159.133.rev.iijgio.jp 23.012ms asymm 10
13: no reply
14: no reply
15: no reply
16: 98.240.110.133.static.iijgio.jp 24.594ms reached
Resume: pmtu 1500 hops 16 back 14
1?: [LOCALHOST] pmtu 1500
1: s06-d-171-254.wainet.ne.jp 2.291ms
1: s06-d-171-254.wainet.ne.jp 2.247ms
2: 124.247.7.182 1.943ms
3: 124.247.7.162 2.726ms asymm 2
4: 103.246.232.113 15.894ms asymm 3
5: osnrt3b-hrt1.bb.sakura.ad.jp 45.036ms asymm 4
6: vps-os1a-rt01-nrt4b.bb.sakura.ad.jp 20.190ms
7: 192.168.20.15 16.329ms
8: os3-358-12269.vs.sakura.ne.jp 15.734ms reached
Resume: pmtu 1500 hops 8 back 8
1?: [LOCALHOST] pmtu 1500
1: s06-d-171-254.wainet.ne.jp 1.691ms
1: s06-d-171-254.wainet.ne.jp 1.530ms
2: 124.247.7.190 2.209ms
3: 124.247.7.186 1.281ms asymm 2
4: 210.173.176.240 22.699ms asymm 6
5: 61.203.193.125 21.318ms
6: 61.203.193.58 20.261ms
7: 210.191.83.250 21.350ms
8: no reply
9: 210.191.83.143 21.195ms reached
Resume: pmtu 1500 hops 9 back 9
1?: [LOCALHOST] pmtu 1500
1: s06-d-171-254.wainet.ne.jp 1.529ms
1: s06-d-171-254.wainet.ne.jp 1.741ms
2: 124.247.7.190 1.507ms
3: 124.247.7.186 1.591ms asymm 2
4: 210.171.224.16 22.673ms asymm 3
5: 202.90.14.33 18.891ms reached
Resume: pmtu 1500 hops 5 back 4
```
```
sodium@iij-3q1-290148:~$ curl http://ipwho.is/?fields=connection
tracepath 133.110.240.98
tracepath 133.167.41.23
tracepath 210.191.83.143
tracepath ds-linear-abematv.akamaized.net
{"connection":{"asn":37892,"org":"Cable Media WAIWAI Co.,Ltd.","isp":"Cable Media WAIWAI Co.,Ltd.","domain":"wainet.ne.jp"}} 1?: [LOCALHOST] pmtu 1500
1: s06-d-171-254.wainet.ne.jp 38.654ms
1: s06-d-171-254.wainet.ne.jp 2.602ms
2: 124.247.7.178 2.070ms
3: 111.108.6.109 15.636ms asymm 9
4: 27.86.32.133 17.196ms asymm 8
5: 106.139.193.2 16.464ms asymm 9
6: 202.232.1.45 22.011ms asymm 8
7: osk004bb01.IIJ.Net 24.710ms
8: tky009bb01.IIJ.Net 22.614ms asymm 7
9: sri001bb01.IIJ.Net 33.820ms asymm 8
10: sri001ip60.IIJ.Net 23.444ms asymm 8
11: 210.138.14.170 24.143ms asymm 9
12: 130.99.159.133.rev.iijgio.jp 24.293ms asymm 10
13: no reply
14: no reply
15: no reply
16: 98.240.110.133.static.iijgio.jp 24.545ms reached
Resume: pmtu 1500 hops 16 back 14
1?: [LOCALHOST] pmtu 1500
1: s06-d-171-254.wainet.ne.jp 1.614ms
1: s06-d-171-254.wainet.ne.jp 1.066ms
2: 124.247.7.182 0.703ms
3: 124.247.7.162 2.024ms asymm 2
4: 103.246.232.113 16.230ms asymm 3
5: osnrt4b-hrt1.bb.sakura.ad.jp 22.146ms
6: vps-os1a-rt01-nrt4b.bb.sakura.ad.jp 15.471ms asymm 5
7: 192.168.20.15 16.535ms
8: os3-358-12269.vs.sakura.ne.jp 16.055ms reached
Resume: pmtu 1500 hops 8 back 8
1?: [LOCALHOST] pmtu 1500
1: s06-d-171-254.wainet.ne.jp 1.242ms
1: s06-d-171-254.wainet.ne.jp 1.549ms
2: 124.247.7.194 1.003ms
3: 210.173.176.240 21.108ms asymm 6
4: 61.203.193.121 20.926ms asymm 5
5: 61.203.193.58 20.750ms asymm 6
6: 210.191.83.250 20.439ms asymm 7
7: no reply
8: 210.191.83.143 21.566ms reached
Resume: pmtu 1500 hops 8 back 9
1?: [LOCALHOST] pmtu 1500
1: s06-d-171-254.wainet.ne.jp 2.667ms
1: s06-d-171-254.wainet.ne.jp 2.069ms
2: 124.247.7.194 13.695ms
3: 210.171.224.16 22.074ms
4: 202.90.14.33 19.639ms reached
Resume: pmtu 1500 hops 4 back 4
```
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