哈尔滨(host1)---上海[FTP1(windows,server-U),FTP2(linux,vsftp)]
host1(wget~)-----FTP1[OK]
host1(wget~)-----FTP2[NO]
故障现象:
[root@haerbing ~]# wget ftp://ftpuser:ftpuser@shanghaiIP/xen/XenServer-5.6.1-fp1-install-cd.iso
--2012-06-07 03:33:44-- ftp://ftpuser:*password*@shanghaiIP/xen/XenServer-5.6.1-fp1-install-cd.iso
=> `XenServer-5.6.1-fp1-install-cd.iso.3'
Connecting to IP:21... connected.
Logging in as ftpuser ... Logged in!
==> SYST ... done. ==> PWD ... done.
==> TYPE I ... done. ==> CWD /xen ... done.
==> SIZE XenServer-5.6.1-fp1-install-cd.iso ... 441192448
==> PASV ... done. ==> RETR XenServer-5.6.1-fp1-install-cd.iso ... done.
Length: 441192448 (421M)
0% [ ] 0 --.-K/s in 15m 0s
公司网络部的大牛哥找出了原因[哈哈!]
故障原理:
MTU+以太网包头+运营商VPN
1500+18+N
VPN不支持分包?
故障解决方法:
主机的MTU改小一点就可以了传输数据了!
[linux]
#1
ifconfig eth0 mtu 1400
#2
ip link set dev eth0 mtu 1400
#3
vi /etc/sysconfig/network-scripts/ifcfg-eth0
MTU=1400
[windows]
难道windows支持自动缩小MTU?
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