※ 引述《c98406023 (撌思渔撱)》之铭言：
: ※ [本文转录自 Gossiping 看板 #1LXhttqU ]
: 作者: takahashikag (奥様は正妻空母) 看板: Gossiping
: 标题: [问卦] 台湾连外频宽瓶颈
: 时间: Sun Jun 21 21:36:50 2015
: 安安大家好，我是键盘工程师，我是想问问看大家对于台湾网络环境的连线瓶颈怎么看
: 这是我的看观察啦！我是觉得种花奠信跟嗯吸吸要解释一下连线瓶颈可以夸张到这样是怎
: 么一回事，以遍布全球，拥有三十五个资料中心的 CloudFlare 来说，在东北亚就有东京
: 、大阪、魔都、香港还有新加坡五个 CDN Data Center，台湾用户最常使用的应该是日本
: 跟香港的那三个存取点
: 不过香港的网络环境很反常，但是对 CloudFlare 中华电信又很喜欢把它导到香港去，所
: 以就会变成连去香港先绕去日本，反过来连去日本也是先绕去香港，结果就是转啊转，卡
: 到疯
: https://c1.staticflickr.com/1/466/18396221704_3d8956fb91_b.jpg
: 结果你只要挂个日本 VPN 当皇民立刻鸡犬升天
: https://c1.staticflickr.com/1/292/18831112298_2b5d7cddce_b.jpg
: 看不懂 Traceroute 没关系，用 Ping 解释也可以，大家都打过 CS 吧？Ping 越低越好
: https://c1.staticflickr.com/1/298/18832571979_22d696b0bc_b.jpg
: https://c1.staticflickr.com/1/512/18992543846_d82053a227_b.jpg
: 连外靠种花，开图都会卡，你我都受害
做了一些调查, 得到的结论应该是 CloudFlare 自己的责任较大
跟日本/台湾的网络业生态有关, 也是美国业者刚刚进亚洲常会遇到的障碍
底下是原始资料, 要说明清楚肯定会是一大篇
1. NTT
Router: Tokyo - JP
Command: show ip bgp 190.93.241.232
BGP routing table entry for 190.93.241.0/24
Versions:
Process bRIB/RIB SendTblVer
Speaker 57950942 57950942
Last Modified: Jun 17 20:19:19.328 for 3d21h
Paths: (4 available, best #1)
Advertised to peers (in unique update groups):
198.64.6.46
Path #1: Received by speaker 0
Advertised to peers (in unique update groups):
198.64.6.46
(64600) 4713 2510 10026 13335 13335 13335, (aggregated by 13335
141.101.76.1)
61.213.162.162 (metric 1000) from 129.250.0.147 (129.250.0.147)
Origin IGP, metric 4294967294, localpref 100, valid, confed-internal,
best, group-best, multipath, import-candidate
Received Path ID 0, Local Path ID 1, version 57950942
Community: 2914:395 2914:2401 2914:3400
2. Sprint(Softbank)
Sprint Source Region: Tokyo, Japan (sl-bb21-tok)
Performing: Show Route
This command has been deprecated: 'show ip bgp ipv4 unicast 190.93.241.232 '
Sun Jun 21 17:56:53.500 UTC
BGP routing table entry for 190.93.241.0/24
Versions:
Process bRIB/RIB SendTblVer
Speaker 367390098 367390098
Last Modified: Nov 29 21:48:28.355 for 29w0d
Paths: (3 available, best #2)
Advertised to update-groups (with more than one peer):
0.5
Advertised to peers (in unique update groups):
144.232.6.146
Path #1: Received by speaker 0
Not advertised to any peer
10026 13335 13335 13335, (aggregated by 13335 103.22.203.1)
203.222.38.1 (metric 501) from 203.222.32.9 (203.222.38.1)
Origin IGP, metric 4294967294, localpref 90, valid, internal
Received Path ID 0, Local Path ID 0, version 0
Community: 1239:666 1239:667 1239:7000 1239:7030 1239:7666
Originator: 203.222.38.1, Cluster list: 0.1.36.248
Path #2: Received by speaker 0
Advertised to update-groups (with more than one peer):
0.5
Advertised to peers (in unique update groups):
144.232.6.146
10026 13335 13335 13335, (aggregated by 13335 103.22.203.1)
203.98.192.50 (metric 306) from 203.222.36.13 (203.98.192.50)
Origin IGP, metric 4294967294, localpref 90, valid, internal, best,
group-best
Received Path ID 0, Local Path ID 1, version 367390098
Community: 1239:666 1239:667 1239:7000 1239:7070 1239:7666
Originator: 203.98.192.50, Cluster list: 0.1.36.248, 0.1.20.44
Path #3: Received by speaker 0
Not advertised to any peer
10026 13335 13335 13335, (aggregated by 13335 103.22.203.1)
203.222.38.1 (metric 501) from 203.222.38.8 (203.222.38.1)
Origin IGP, metric 4294967294, localpref 90, valid, internal
Received Path ID 0, Local Path ID 0, version 0
Community: 1239:666 1239:667 1239:7000 1239:7030 1239:7666
Originator: 203.222.38.1, Cluster list: 0.1.36.248Sprint Source Region: Tokyo, Japan (sl-bb21-tok)
Performing: Show Route
This command has been deprecated: 'show ip bgp ipv4 unicast 190.93.241.232 '
Sun Jun 21 17:56:53.500 UTC
BGP routing table entry for 190.93.241.0/24
Versions:
Process bRIB/RIB SendTblVer
Speaker 367390098 367390098
Last Modified: Nov 29 21:48:28.355 for 29w0d
Paths: (3 available, best #2)
Advertised to update-groups (with more than one peer):
0.5
Advertised to peers (in unique update groups):
144.232.6.146
Path #1: Received by speaker 0
Not advertised to any peer
10026 13335 13335 13335, (aggregated by 13335 103.22.203.1)
203.222.38.1 (metric 501) from 203.222.32.9 (203.222.38.1)
Origin IGP, metric 4294967294, localpref 90, valid, internal
Received Path ID 0, Local Path ID 0, version 0
Community: 1239:666 1239:667 1239:7000 1239:7030 1239:7666
Originator: 203.222.38.1, Cluster list: 0.1.36.248
Path #2: Received by speaker 0
Advertised to update-groups (with more than one peer):
0.5
Advertised to peers (in unique update groups):
144.232.6.146
10026 13335 13335 13335, (aggregated by 13335 103.22.203.1)
203.98.192.50 (metric 306) from 203.222.36.13 (203.98.192.50)
Origin IGP, metric 4294967294, localpref 90, valid, internal, best,
group-best
Received Path ID 0, Local Path ID 1, version 367390098
Community: 1239:666 1239:667 1239:7000 1239:7070 1239:7666
Originator: 203.98.192.50, Cluster list: 0.1.36.248, 0.1.20.44
Path #3: Received by speaker 0
Not advertised to any peer
10026 13335 13335 13335, (aggregated by 13335 103.22.203.1)
203.222.38.1 (metric 501) from 203.222.38.8 (203.222.38.1)
Origin IGP, metric 4294967294, localpref 90, valid, internal
Received Path ID 0, Local Path ID 0, version 0
Community: 1239:666 1239:667 1239:7000 1239:7030 1239:7666
Originator: 203.222.38.1, Cluster list: 0.1.36.248
3. 某日本小型业者
BGP routing table entry for 190.93.241.0/24
Paths: (5 available, best #2, table Default-IP-Routing-Table)
Not advertised to any peer
4725 10026 13335 13335 13335, (aggregated by 13335 141.101.76.1)
203.216.201.1 from 203.216.201.1 (203.216.201.1)
Origin IGP, metric 300, localpref 90, valid, internal
Community: 9607:2011
Last update: Thu Jun 18 05:19:33 2015
24115 13335 13335 13335, (aggregated by 13335 141.101.76.1)
203.190.230.72 from 211.14.3.252 (211.14.3.252)
Origin IGP, metric 0, localpref 100, valid, internal, best
Community: 9607:13 9607:3252 13335:10022 13335:19030 13335:20010
13335:20270 13335:20500 13335:20530 24115:13335
Last update: Thu Jun 18 05:19:04 2015
2516 10026 13335 13335 13335, (aggregated by 13335 141.101.76.1)
203.181.98.33 from 211.14.3.253 (211.14.3.253)
Origin IGP, metric 200, localpref 90, valid, internal
Community: 2516:1050 9607:3253
Last update: Thu Jun 18 05:19:17 2015
24115 13335 13335 13335, (aggregated by 13335 141.101.76.1)
211.14.3.252 from 211.14.3.242 (211.14.3.252)
Origin IGP, metric 0, localpref 100, valid, internal
Community: 9607:13 9607:3252 13335:10022 13335:19030 13335:20010
13335:20270 13335:20500 13335:20530 24115:13335
Originator: 211.14.3.252, Cluster list: 211.14.3.249
Last update: Thu Jun 18 05:19:04 2015
24115 13335 13335 13335, (aggregated by 13335 141.101.76.1)
211.14.3.252 from 203.216.201.2 (211.14.3.252)
Origin IGP, metric 0, localpref 100, valid, internal
Community: 9607:13 9607:3252 13335:10022 13335:19030 13335:20010
13335:20270 13335:20500 13335:20530 24115:13335
Originator: 211.14.3.252, Cluster list: 211.14.3.249
Last update: Thu Jun 18 05:19:04 2015