1
leopard080264 2015-04-03 21:55:52 +08:00 via iPad
如果距离在30km内,理论延时应小于等于1ms,考虑到接入层,汇聚层,核心层的拥堵20ms,很正常,电信怎么会没直联线路,那么短的距离,但是逻辑上有很多个层面,不止30km那么简单,举个例子,广州国际出口还要承担广州大区的到香港流量,180ms,不稀奇,术语叫国际出口拥塞,铁通为什么那么低,用户少,如果想达到10ms甚至更低水平,请找广州电信申请CN2线路
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2
hahasong 2015-04-03 22:58:36 +08:00
是不是因为移动在香港有分公司的原因,所以有专用线路
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3
pupboss 2015-04-03 23:30:16 +08:00
你试试用路由追踪命令,看看都经过了哪些节点
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4
ryd994 2015-04-03 23:34:05 +08:00 via Android
中山到香港he tunnel broker,走的是洛杉矶到东京再到香港你信么
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5
yexm0 2015-04-03 23:36:42 +08:00
不觉得移动延迟低啊
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6
xiaozhizhu1997 2015-04-04 00:27:52 +08:00 via Android
@ryd994 原理简单,电信在香港的POP没跟HE做peer。
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7
Showfom 2015-04-04 05:10:02 +08:00 via iPhone
@leopard080264 除了上海别的城市也能申请CN2线路么
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9
leopard080264 2015-04-04 14:19:42 +08:00
@Showfom 联系当地电信大客户经理,只不过魔都把cn2开放给了家庭用户
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10
Showfom 2015-04-04 14:27:32 +08:00 via iPhone
@leopard080264 唔 所有地方都会有么
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13
datou 2015-04-04 20:09:09 +08:00
@yexm0 北京移动
64 bytes from 203.80.96.28: icmp_req=40 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=41 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=42 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=43 ttl=54 time=36.9 ms 64 bytes from 203.80.96.28: icmp_req=44 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=45 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=46 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=47 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=48 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=49 ttl=54 time=36.9 ms 64 bytes from 203.80.96.28: icmp_req=50 ttl=54 time=36.9 ms 64 bytes from 203.80.96.28: icmp_req=51 ttl=54 time=36.6 ms 64 bytes from 203.80.96.28: icmp_req=52 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=53 ttl=54 time=36.9 ms 64 bytes from 203.80.96.28: icmp_req=54 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=55 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=56 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=57 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=58 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=59 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=60 ttl=54 time=36.9 ms 64 bytes from 203.80.96.28: icmp_req=61 ttl=54 time=36.8 ms 64 bytes from 203.80.96.28: icmp_req=62 ttl=54 time=36.9 ms 64 bytes from 203.80.96.28: icmp_req=63 ttl=54 time=36.8 ms |
14
homedeco 2015-04-07 08:39:12 +08:00
铁通/移动本来主力出国线路就是经香港出去, 延时肯定会比电信/联通要好
关于联通到香港, 貌似联通到香港的留给家庭用户的带宽比较小, ping值30以下的是直连, 150左右是绕北京再下香港, 拥堵时就会经北京... |
15
KexyBiscuit 2015-04-19 06:23:39 +08:00 via Android
移动的国际线路超级赞
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16
kennylam777 2015-05-02 05:50:09 +08:00
移動直接在HKIX有public peering, 當然快。
其他兩家都有跟香港寬頻(城市電訊)做private peering,但擠塞嚴重,部分香港寬頻的IP段還經過美國才回到電信/聯通,不慢才怪。 |
17
kennylam777 2015-05-02 05:52:09 +08:00
@julyclyde 固網線路的那一家是中國移動國際(CMI),跟主管移動網絡的中國移動香港(CMHK)是兩家不同的子公司。
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18
ntgeralt OP @kennylam777 请教你:如果我想广东电信、联通访问香港城市电讯的vpn快些,应该怎么做
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