Hello Simon, I have talked with the administrator of mirror.bjtu.edu.cn today, and have some information for you here.
1. mirror.bjtu.edu.cn only supports IPv4, mirror6.bjtu.edu.cn only supports IPv6. This was designed to avoid IPv4 users suffer slow response when mirror.bjtu.edu.cn has AAAA record. - To satisfy Debian's requirement, debian.mirror.bjtu.edu.cn has been set up with both IPv4 and IPv6 support. 2. The administrator said syncing from ftp.tw.debian.org is not so efficient because of the connective problems in China's network. Mirroring from IPv6 enabled primary mirrors will be much more efficient (usually ~10 times of bandwidth available, and the network is much less busier), so if this would be acceptable? What's more, primary mirror's server can connect to bjtu's mirror directly through IPv6 without extra work to do. 3. More on push triggering. Push triggered updates via IPv4 has some problems because the network is behind a firewall so ftp.xy.debian.org cannot connect to the mirror directly. As the domain name suggests (bjtu.edu.cn), this mirror is located in CERNET (China Education and Research Network) and hosted by Beijing Jiao Tong University. There is a work around that might be used: make ssh tunnel from bjtu's mirror to ftp.xy.debian.org, so the latter can connect back using the tunnel to send push info. But I believe using IPv6 would be a better solution. 4. The mirror has all architectures mirrored, so we'd like to make it ftp.cn.debian.org if possible. (No hurry, :D) -- Regards, Aron Xu -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org