Sending packet using libpcap speed limitation
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29-09-2019 - |
Pergunta
I wrote a program that captures Ethernet packets from some NIC (i.e eth0) at high speed (about 1Gbps) and forward traffic using pcap_sendpacket()
to another NIC (i.e eth1).
While the forwarder Ethernet interface is not connected to another computer NIC, forwarding speed is desired, but when I connect it, sending speed gets down awfully (from 900 Mbps to 100 Mbps).
Can anybody explain the reason?
OS: Kubuntu linux 10.10
Language: C++
Library: Libpcap
Solução
Because the destination NIC is a 100 Bbps interface :D :p
Outras dicas
Or the auto-negotiation for the network device has been turned off and is trying 100Mbps firstly.
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