Top new questions this week: |
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Cannot auto configure Cisco 3850 on bootI obtained a used Cisco 3850 and am trying to get it to boot up and change Gigabit/Ethernet interface states to UP without console input. The 3850 boots and loads the image and linux kernal and ...
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Greatest hits from previous weeks: |
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Minimum Ethernet Cable Length?I have heard from a few people that cables less than 1 meter are prone to transmission problems. Is there any minimum copper cabling length? Please explain if this is true or not and share any ...
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How to find the port a device is connected to, based on IP, on a Cisco Catalyst switchOn a Cisco Catalyst switch, I need to find what port an end device is connected to. I have the IP address/host name. How do I quickly find the port?
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Why do switches need ARP tables when the translation are done on the machines side?As it is clear from the title, why do switches need ARP tables when the translation are done on the machines side? Roughly saying, why there are two ARP tables on machines and on switches? Is not the ...
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Usage of 192.168.xxx, 172.xxx and 10.xxx in private networksI know that the organization that distributes IP addresses decided to assign 192.168.xxx, 172.xxx and 10.xxx to private networks. However, I thought that private networks have their own address space ...
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Difference between CRC and input errors - show interfaceThe command "show interface fa0/1" prints the following output: What is the difference between "CRC" and "input errors"? CRC errors confirms that a frame error has occured, but what about "input ...
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Packet vs Circuit switchingI have a 1Mb/s link each user uses 100Kb/s when active. With 10 user active 10% of the time, I can have 10 users in a circuit switched environment. Packet switching with 35 users, probability > 10 ...
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RJ45 Cable only has 4 wiresThe cable that connects to my rj45 only has 4 cables, blue, orange, blue stripe, orange stripe. When I connect them to their corresponding ports, there is no internet connection.(Blue = 4, Orange = 6, ...
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