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packet captures

Chinese translation: 封包截取

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23:19 Jun 16, 2005
English to Chinese translations [PRO]
Tech/Engineering - IT (Information Technology)
English term or phrase: packet captures
Also, watch out for "sharp practices" by vendors. Almost every device out there has a weakness of some sort that will never normally manifest itself on a normal network. There is always a trade-off between performance and security, and the real difference between many of the products out there is where that trade-off has been made in the architecture of the device.
However, some vendors have been known to craft "special" packet captures or custom utilities to directly exploit the specific architectural shortcoming of a competitor's device and show it at its worst. Take these demonstrations with a pinch of salt (and you should probably send that vendor packing, too, since ethics are obviously in short supply). The real test, as we have said already, is how the device performs in your network with your traffic.
具体译成什么?
clearwater
China
Local time: 07:02
Chinese translation:封包截取
Explanation:
Some vendors would train their devices to capture well on certain rare packet patterns, putting the competitors' products in a bad light(long latency etc.)

http://www.cet.nau.edu/~mc8/Socket/Tutorials/section1.html

Packet Capture, simply means to "grab packets".
"Gee thanks Martin :-P"..you blurt.
No, really, all we are trying to do here is to get access to the underlying facility provided by the operating system so we can grab packets in their raw form. For example, assume your ethercard picks up a packet from the network. Once the packet is handed off to the OS, the OS must determine what type of packet it is, to do so it strips off the Ethernet header of the packet and looks at the next layer. Perhaps it is an ip packet... well the OS must now strip of the IP header and determine which type of IP packet it is. Finally, lets say it is determined that the packet is a UDP packet, the UDP header is stripped off and the packet payload is handed over to the application that the packet is sent for (notice this is an GROSSLY oversimplified version of what really goes on, but I trying to illustrate a point). Packet capture allows us to intercept any packet that is seen by the network device, and grab it in its entirety headers and all! Regardless of which port is being sent to, or even which HOST! for that matter!!!
Selected response from:

wherestip
United States
Local time: 18:02
Grading comment
谢谢!
4 KudoZ points were awarded for this answer

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Summary of answers provided
3 +1封包截取
wherestip


  

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4 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
封包截取


Explanation:
Some vendors would train their devices to capture well on certain rare packet patterns, putting the competitors' products in a bad light(long latency etc.)

http://www.cet.nau.edu/~mc8/Socket/Tutorials/section1.html

Packet Capture, simply means to "grab packets".
"Gee thanks Martin :-P"..you blurt.
No, really, all we are trying to do here is to get access to the underlying facility provided by the operating system so we can grab packets in their raw form. For example, assume your ethercard picks up a packet from the network. Once the packet is handed off to the OS, the OS must determine what type of packet it is, to do so it strips off the Ethernet header of the packet and looks at the next layer. Perhaps it is an ip packet... well the OS must now strip of the IP header and determine which type of IP packet it is. Finally, lets say it is determined that the packet is a UDP packet, the UDP header is stripped off and the packet payload is handed over to the application that the packet is sent for (notice this is an GROSSLY oversimplified version of what really goes on, but I trying to illustrate a point). Packet capture allows us to intercept any packet that is seen by the network device, and grab it in its entirety headers and all! Regardless of which port is being sent to, or even which HOST! for that matter!!!


wherestip
United States
Local time: 18:02
Native speaker of: Native in EnglishEnglish, Native in ChineseChinese
PRO pts in category: 877
Grading comment
谢谢!

Peer comments on this answer (and responses from the answerer)
agree  Chinoise
5 days
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