Connection drops while transferring large files to one server on a network
Posted
by
Charlotte
on Server Fault
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Published on 2012-11-01T15:07:43Z
Indexed on
2012/11/01
17:04 UTC
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Hit count: 408
networking
|file-transfer
My company has two sites, each with their own LAN, using site to site VPN tunnel to connect the two sites.
When transferring files (especially larger files) from site1 to site2 server1, the file transfer fails. I don't think this can be a VPN issue because transferring the same files to site2 server2 which is on the same network as server1 works fine.
Pings to server1 and server2 at site2 from site1 are about the same, mostly 19/20ms with the odd one up to 50ms.
As server1 is DB server with a high load I thought the NIC maybe overloaded, but a transfer from site2 server1 to site2 server2 works fine, and that uses the same NIC on server1 as transfers from site1 to site2 server1.
The servers are both Windows Server 2003 VMs with VMXNET 3 NICs.
Site2 Server1 route print:
IPv4 Route Table
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 50 56 99 28 9b ...... vmxnet3 Ethernet Adapter #2
0x10004 ...00 50 56 99 18 97 ...... vmxnet3 Ethernet Adapter
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 172.20.10.1 172.20.10.18 10
10.10.10.0 255.255.255.0 10.10.10.70 10.10.10.70 10
10.10.10.70 255.255.255.255 127.0.0.1 127.0.0.1 10
10.255.255.255 255.255.255.255 10.10.10.70 10.10.10.70 10
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
172.20.10.0 255.255.255.0 172.20.10.18 172.20.10.18 10
172.20.10.18 255.255.255.255 127.0.0.1 127.0.0.1 10
172.20.255.255 255.255.255.255 172.20.10.18 172.20.10.18 10
224.0.0.0 240.0.0.0 10.10.10.70 10.10.10.70 10
224.0.0.0 240.0.0.0 172.20.10.18 172.20.10.18 10
255.255.255.255 255.255.255.255 10.10.10.70 10.10.10.70 1
255.255.255.255 255.255.255.255 172.20.10.18 172.20.10.18 1
Default Gateway: 172.20.10.1
===========================================================================
Persistent Routes:
None
Site2 Server2 route print
IPv4 Route Table
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 50 56 99 15 00 ...... vmxnet3 Ethernet Adapter
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 172.20.10.1 172.20.10.114 10
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
172.20.10.0 255.255.255.0 172.20.10.114 172.20.10.114 10
172.20.10.114 255.255.255.255 127.0.0.1 127.0.0.1 10
172.20.255.255 255.255.255.255 172.20.10.114 172.20.10.114 10
224.0.0.0 240.0.0.0 172.20.10.114 172.20.10.114 10
255.255.255.255 255.255.255.255 172.20.10.114 172.20.10.114 1
Default Gateway: 172.20.10.1
===========================================================================
Persistent Routes:
None
Site1 Server route print:
===========================================================================
Interface List
14...00 50 56 93 00 0b ......vmxnet3 Ethernet Adapter #2
1...........................Software Loopback Interface 1
12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
13...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
===========================================================================
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.168.1 192.168.168.118 261
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.168.0 255.255.255.0 On-link 192.168.168.118 261
192.168.168.118 255.255.255.255 On-link 192.168.168.118 261
192.168.168.255 255.255.255.255 On-link 192.168.168.118 261
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.168.118 261
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.168.118 261
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 192.168.168.1 Default
===========================================================================
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
1 306 ::1/128 On-link
14 261 fe80::/64 On-link
14 261 fe80::3c6b:996f:ef36:ee76/128
On-link
1 306 ff00::/8 On-link
14 261 ff00::/8 On-link
===========================================================================
Persistent Routes:
None
tracert from site1 to site2 server1:
Tracing route to server1 [172.20.10.18]
over a maximum of 30 hops:
1 19 ms 19 ms 19 ms server1 [172.20.10.18]
Trace complete.
tracert from site2 server1 to site1: When this was run it went to the external IP of site2, then to a couple of external ips of the isp, then times out.
Can anyone suggest any troubleshooting steps?
Thanks, Charlotte.
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