Latest threads in Ethernet LANshow only best voted threads
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why ethernet paload minimum size is 46 bytes?
hello, I have one doubt. why the ethernet packet payload minimum size is 46 bytes. why it sent from 1byte to max. size. any reason behind it.
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17 years ago
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Hardware/Software setup
Cox Cable hi-speed is slow. Trying to install D-Link ethernet. Winsows XP can't find drivers. Install fails, many attempts and methods, e.g., where to look for drivers. D-link tech support no help....
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17 years ago
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Adaptive Interframe Gap on Broadcom Ethernet Adapters
I'm using the Broadcom NetXtreme 57xx Gigabit Controller on a Dell Precision 390 workstation. The driver settings in Windows 2003 are skimpy to say the least. Is there any driver or registry setting...
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17 years ago
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how switches work - collision-free / full-duplex
Hi, I have a question about ethernet switches on full duplex "collision- free" LANs. What if there are multiple nodes sending to the same segment/port, how does the switch handle that? I would think...
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17 years ago
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Question about VLAN tagging for packets
If you have a Layer 2 switch it should already take care of your issue. A layer 2switch will know what port the server is on. Unless I'm missing something I also don't see what the vlan is doing for...
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17 years ago
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CRC
Hi, I have written some Verilog code to compute CRC for an ethernet packet. There seem to be two different implementations - one where the initial value is FFFFFFFF and the final bits are complemented...
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17 years ago
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Another jumbo frames question
I have at least one book and one internet article that say there is no MTU explicitly defined in 802.3ab so therefore jumbo frames are not "standard." But I guess that also means that the 1500 byte...
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17 years ago
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10 to Auto/Auto or 100 Full on Cisco swich cost advantage
Let me first start by saying that I don't know all the technical terminoligy when it comes to Fast Ethernet. I work for a large company that to date has stuck with the standard for remote sites to...
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17 years ago
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ARP reply containing a multicast MAC OK?
I just went through a brief look at the original ARP RFC and a bit of querying (perhaps not enough) and am left wondering if there is any "chapter and verse" on whether it is permissible for an ARP...
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17 years ago
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Autonegotiation @ 100 / 1000BASE-T - why in another sublayer of PHY
I'm not sure it is an/the answer, but autoneg in 100BT was (at least initially) optional. I don't think it was ever optional in 1000BT. Perhaps that has something to do with where it is placed? I...
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17 years ago
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Rapid Spanning Tree question
After an RSTP topology change, does a device necessarily have to flush both unicast and multicast address tables? I'm running into an issue where my multicast GDAs (which are dynamic) are being...
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17 years ago
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MS-Dos 6.22 Packet Driver for 3COM 3C2000 ?
Hello, Have you ever managed to find a MS-Dos 6.22 packet driver for 3COM's 3C2000 PCI network card ? Bye, Skybuck.
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17 years ago
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LAN adapter settings?
I have a home network. My LAN consists of a desktop computer with a linksys eg1032 gigabit adapter, a laptop with an intel pro 100/1000Mb card, and a Netgear gigabit router. I want maximum speed when...
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17 years ago
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VLAN with intel adapter on XP
I have setup two VLANs on a laptop with an PRO/100VE compatible onboard adapter (latest proset/driver): 99 tagged and one untagged. It connects to a switch port which is setup for VLAN 99 tagged and...
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17 years ago
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Running Cat5 cable outside
I have cable as my internet provider. The strongest source for the modem to plug into is in my basement. The problem is that all of our computers are on the second floor of my house. Right now, I am...
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17 years ago
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