重要的历史时刻来临:IPv4 开始收费了!
公众号程序猿DD
共 10717字,需浏览 22分钟
· 2023-08-14
地址空间
标头字段数量较少(仅占为 8 个,IPv4 上是 13 个)
处理速度更快:不再需要校验和,所以路由器不必对每个数据包进行重新计算。
路由速度更快:包含更多汇总路由和分层路由。(看不懂?没关系,汇总路由 = 将多个 IP 组合起来,这样就不需要处理所有地址,而仅仅只要根据地址开头部分的大致方向前进就行。路由也是如此,毕竟 IPv6 是我们唯一能够使用的小型、高效主干路由。)
QoS:Traffic Class 和 Flow Label 两个字段,让 QoS 更轻松。
自动寻址。允许 IPv6 主机在局域网上无需路由器或 DHCP 服务器即可实现连接。
可以使用 Authentication 标头和封装安全负载将 IPsec 添加至 IPv6。
curl -v https://s3.amazonaws.com/dd-agent/scripts/install_script_agent7.sh
* Trying [64:ff9b::34d9:8430]:443...
* Trying 52.216.133.245:443...
* Immediate connect fail for 52.216.133.245: Network is unreachable
* Trying 54.231.138.48:443...
* Immediate connect fail for 54.231.138.48: Network is unreachable
* Trying 52.217.96.222:443...
* Immediate connect fail for 52.217.96.222: Network is unreachable
* Trying 52.216.152.62:443...
* Immediate connect fail for 52.216.152.62: Network is unreachable
* Trying 54.231.229.16:443...
* Immediate connect fail for 54.231.229.16: Network is unreachable
* Trying 52.216.210.200:443...
* Immediate connect fail for 52.216.210.200: Network is unreachable
* Trying 52.217.89.94:443...
* Immediate connect fail for 52.217.89.94: Network is unreachable
* Trying 52.216.205.173:443...
* Immediate connect fail for 52.216.205.173: Network is unreachable
curl -v http://s3.dualstack.us-west-2.amazonaws.com/
* Trying [2600:1fa0:40bf:a809:345c:d3f8::]:80...
* Connected to s3.dualstack.us-west-2.amazonaws.com (2600:1fa0:40bf:a809:345c:d3f8::) port 80 (#0)
> GET / HTTP/1.1
> Host: s3.dualstack.us-west-2.amazonaws.com
> User-Agent: curl/7.88.1
> Accept: */*
>
< HTTP/1.1 307 Temporary Redirect
< x-amz-id-2: r1WAG/NYpaggrPl3Oja4SG1CrcBZ+1RIpYKivAiIhiICtfwiItTgLfm6McPXXJpKWeM848YWvOQ=
< x-amz-request-id: BPCVA8T6SZMTB3EF
< Date: Tue, 01 Aug 2023 10:31:27 GMT
< Location: https://aws.amazon.com/s3/
< Server: AmazonS3
< Content-Length: 0
<
* Connection #0 to host s3.dualstack.us-west-2.amazonaws.com left intact
0%
连接请求轮询。
不同服务器的加权轮询。
最少连接原则,即连接数最少的服务器会收到更多请求。
加权最少连接,跟上一条类似,但也可以设置更多倾向性。
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