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I have experiencing a UDP Multicast packet drop with Intel I340-T4 quad port network adapter.
I believe this is caused by open/close Multicast receiving socket on the same physical network port.
Here is my setup:
OS: Windows Server 2003
I340-T4 Driver version 11.4.7.0
Multicast receiving socket which suffer dropped MCast packet:
- MCast IP: 234.234.234.234
- Port: 12345
- Interface: 192.168.8.11
- receving a 14MBit source
- experience packet drop once every 1 min
Open and closing socket:
open a socket, listen to a source for 2 second, then close it. Repeat this cycle every 4 second.
Socket 1
- MCast IP: 234.234.234.234
- Port 12345
- Interface: 192.168.8.11
- receive a 14MBit source
Socket 2 - 7
- MCast IP: 225.1.1.2
- Port 25000
- Interface: 192.168.8.11
- no source
Socket 8
- MCast IP: 225.1.1.3
- Port 25000
- Interface: 192.168.8.11
- no source
Control socket:
Receive the same MCast source, from the same NIC card, but different physical port.
NO packet drop.
- MCast IP: 234.234.234.234
- Port 12345
- Interface: 192.168.9.11
- receive a 14MBit source
So far we believe it's likely a driver problem.
Can you confirm it?
Thanks!
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