Cloud DNS 的服務上看到的,純粹是想貼圖而已:
台北的點在 TFN,不過這是 Cloud DNS 服務而已 (Anycast),CDN 的部份要另外看買到的等級...
Gea-Suan Lin's BLOG for Networking
Limelight Networks 把官方網頁的網址換掉了,好像換一陣子了...
先前是 www.limelightnetworks.com
,現在是 www.limelight.com
,另外有 llnw.com
在他們手上,不知道會不會也拿出來用...
這幾天在 CDN 產業裡面兩個比較大的大消息,一個是 KDDI 丟出打算併購 CDNetworks 的消息。另外一個是傳言 Google 要併購 Akamai。
前者的消息已經確認 (KDDI to Buy CDNetworks to Ensure Smooth Internet Access: Kyodo),後者 Google 則是否認這則消息 (Google Is Said Not to Be Planning to Acquire Akamai Technologies Business)。
不過 CDN 技術愈來愈成熟,就愈來愈像賣頻寬的公司...
gslin@ipv6-test [~] (4:37) sudo ping6 -c 10 -i 0.2 www.ipv6.org.tw PING6(56=40+8+8 bytes) 2001:4541:0:5:2e0:81ff:feb0:ddc3 --> 2001:c50:ffff:1:21a:92ff:fe43:d665 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=0 hlim=56 time=112.814 ms 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=1 hlim=56 time=137.987 ms 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=2 hlim=56 time=107.889 ms 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=3 hlim=56 time=114.263 ms 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=4 hlim=56 time=101.525 ms 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=5 hlim=56 time=118.025 ms 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=6 hlim=56 time=100.039 ms 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=7 hlim=56 time=113.664 ms 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=8 hlim=56 time=146.900 ms 16 bytes from 2001:c50:ffff:1:21a:92ff:fe43:d665, icmp_seq=9 hlim=56 time=124.038 ms --- www.ipv6.org.tw ping6 statistics --- 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 100.039/117.714/146.900/14.235 ms然後用 IPv4 過去:
gslin@ipv6-test [~] (4:37) sudo ping -c 10 -i 0.2 www.ipv6.org.tw PING www.ipv6.org.tw (210.17.9.228): 56 data bytes 64 bytes from 210.17.9.228: icmp_seq=0 ttl=57 time=111.309 ms 64 bytes from 210.17.9.228: icmp_seq=1 ttl=57 time=117.711 ms 64 bytes from 210.17.9.228: icmp_seq=2 ttl=57 time=90.354 ms 64 bytes from 210.17.9.228: icmp_seq=3 ttl=57 time=122.724 ms 64 bytes from 210.17.9.228: icmp_seq=4 ttl=57 time=132.470 ms 64 bytes from 210.17.9.228: icmp_seq=5 ttl=57 time=92.495 ms 64 bytes from 210.17.9.228: icmp_seq=6 ttl=57 time=114.230 ms 64 bytes from 210.17.9.228: icmp_seq=7 ttl=57 time=135.975 ms 64 bytes from 210.17.9.228: icmp_seq=8 ttl=57 time=121.982 ms 64 bytes from 210.17.9.228: icmp_seq=9 ttl=57 time=93.132 ms --- www.ipv6.org.tw ping statistics --- 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 90.354/113.238/135.975/15.608 ms是怎麼了 @_@