ldzs 发表于 2013-7-27 22:20:55

这题目怎么回事,应该是自动式配到100M双工才对啊.

这题目怎么回事,应该是自动式配到100M双工才对啊.

QUESTION 109
What is the end result if a 10/100/1000 IEEE 802.3u Gigabit Ethernet link has autonegotiation enabled on the switch port and the host NIC is statically configured for
100 Mb/s and full-duplex?
A. The link comes up, because autonegotiation sets the switch port to 100Mb/s and full-duplex.
B. The link does not come up because autonegotiation must be enabled or disabled on both sides of the link.
C. Autonegotiation sets the switch port to 100Mb/s and half-duplex.
D. Autonegotiation sets the switch port to the defaults of 1000Mb/s and full-duplex.
E. Autonegotiation sets the switch port to the defaults of 1000Mb/s and half-duplex.
Correct Answer: C
Section: (none)
Explanation
Explanation/Reference:

single_element 发表于 2013-7-28 17:39:48

这道题绝对选C，你可以用两台设备连起来试试{:6_265:}

FireFire 发表于 2013-7-28 20:36:15

http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a00800a7af0.shtml

table1里面有.nic 手动100M双工.sw自动,结果就是100m半公.原因是双工模式不匹配

nick_castor 发表于 2013-7-31 15:42:15

协商全双工协商不起来的

x77x88 发表于 2014-4-8 09:25:16

为什么1000就可以自动匹配，瞧不起100M?
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