Ethernet 802.3 vs Ethernet II frame

Similar Questions

• Airport Extreme Gigabit Ethernet and Jumbo frames

  Hi all.

  Can anyone support me kindly about Gigabit Ethernet & Jumbo Frames with Airport Express?

  I currently have and use a 5th generation Airport Express and you want to buy the QNAP TS - 453 Pro NAS. In any implementation of storage NAS, Gigabit Ethernet, the frames extended as matching Ethernet card well, are all very important to achieve broadband performance, so my questions are:

  5th generation Airport Express

  
  

  • Are the NETWORK Gigabit NIC Ethernet card?
  • It also works with extended frames (QNAP NAS supports 4074, 9000 and 7418 bytes for MTU)?
  • QNAP can trunk NIC (if more then one) with the following options:
    • IEEE 802.3ad (dynamic link aggregation)
    • Balance-tlb (Adaptive Transmit Load Balancing)
    • Balance-alb (Adaptive Load Balancing)
    • others (mainly for failover)

  Is 5th generation Airport Express enough or should I think about moving to the 6th generation?

  Thank you.

  You mix up the terminology... Express and Extreme are totally different.

  The title is correct... Extreme... your question text replaces by Express... they are only 10/100... and gen only 2 of them.

  Any airport extreme Gen2 - Gen6

  Use the Gigabit ports.

  Do not support jumbo frames

  Do not support pairing.

• 802.3 frames naming conventions ether.

  Goal

  The difference between the types of framing 3/4.

  Frames

  There are therefore four types of frames of the ether.

  a. Moose Ethernet frame "aka" Ethernet 10

  b. framework IEEE 802.3 LLC "aka" Ethernet 802.3

  c. IEEE 802.3 with SNAP

  d. Eternet 2 "aka" revised IEEE 802.3

  I get this what throw me is that every book is calling it something different, I need clarity here with good names for these different frame types. For example (b.) is called IEEE 802.3 LLC, Ethernet 802.3 or something else?

  What do you call the 4 types to distinguish the difference between them?

  And what does it matter in the preamble? Do I just need to know what size of 8 bytes, or should I understand used signs?

  CCIE written prep.

  Hello Samuel,.

  I get this, whats throwing me is that each book is calling them  something different, I need clarity here with the correct names for  these different frame types. For example is (b.) called IEEE 802.3 LLC,  Ethernet 802.3 or something else?

  Well, we will look at individual types and let me grab that from my point of view, not to comment on the options at first.

  The original Ethernet 1 frame was the initial implementation of Xerox Ethernet and according to Wikipedia, it has never been commercially deployed. In fact, I have trouble finding any specification on this prehistoric Ethernet format. You shouldn't bother with that much, because this type of frame is completely obsolete.

  The second generation of Ethernet, also called Ethernet II, 2 Ethernet or Ethernet DIX, was developed by Xerox in cooperation with the digital and Intel. These three names - Ethernet II, 2 Ethernet and Ethernet 10 refer all the same frame format - one that we are now using:

  DstMAC, SrcMAC, EthType, data, FCS.

  When TEN approached IEEE with the request to standardize the Ethernet, IEEE taken and made a little twist on the frame format, making it a little closer to HDLC which is a format of popular base at that time frame. What resulted has a skeleton base chassis:

  DstMAC, SrcMAC, length, data FCS

  Note that the only difference is in the redefinition of the EthType field for the field "length". There was also a change of format in the preamble but that pass for now. This Ethernet IEEE base frame skeleton is standardized in 802.3.

  I call the 802.3 a skeleton for a reason. It isn't really a format usable frame because this frame structure is absent of any identification payload. Simply, not sure what is the framework. IEEE obviously did not intend this skeleton 802.3 frame to be used just that clearly, but rather, they reused the HDLC logical link control and they adapted for Ethernet in their standard 802.2. This adaptation of the LLC consisted of adding at least three bytes of the header (flight bytes of the data section because the frame was not allowed to grow bigger): bytes DSAP, PAAS and control. So, when we take the skeleton 802.3 and composed it with the fields 802.2 LLC derived, we get

  DstMAC, SrcMAC, length, DSAP, PAAS, control, data, FCS

  This format of image in its entirety should be called 802.2 LLC. Note that if you call it 802.3 LLC, you say nothing wrong - you have the basic skeleton 802.3 more the 802.2 LLC. Personally, I like to call it 802.2 LLC, however.

  Soon, the limits of this frame format is apparent, as the DSAP/SSAP fields to describe the Protocol within the framework are just 1 byte of length, including half of the values being reserved for private/group dealing with service and the remaining values are too few to describe all protocols with realism of existing top level (not even mention a rigid process to get an official SAP for a protocol value). Therefore, IEEE came with the snap-snap-IN image format that retains the basic structure of the 802.2 LLC, but steals another 5 bytes of the data field for the Protocol provider number YES and Protocol. The entire frame would then become

  DstMAC, SrcMAC, length, DSAP, PAAS, control, YES, ProtoID, data, FCS

  Curiously, this component extension snap-in is described in the document 802 Basic (no matter what 802.x additive). Therefore, this format of frame must be called simply SNAP 802.

  So to summarize:

  DstMAC, SrcMAC, EthType, FCS data: Ethernet II, Ethernet 10 Ethernet 2

  DstMAC, SrcMAC, length, data FCS: IEEE 802.3 (not really usable, just a basic container)

  DstMAC, SrcMAC, length, DSAP, PAAS, control, data, FCS: IEEE 802.3 AND IEEE 802.2 LLC

  DstMAC, SrcMAC, length, DSAP, PAAS, control, YES, ProtoID, data, FCS: IEE 802 SNAP

  And how important in the preamble field? Do I just need to know that  it's 8 bytes in size, or do I need to understand the signalling used?

  There are more important things on the R & S of CCIE written that the preamble of Ethernet, but just in case:

  10 = 802.3 preamble preamble + 802.3 start Frame delimiter

  Preamble: 7 bytes of 10101010 binary (0xAA or 170)

  Delimiter of start-of-Frame = 1 byte of binary 10101011 (0xAB 171 or)

  IEEE comes officially divided the 8 b 10 terrainpour 7 b preamble they call preamble and 1 b called SOF field.

  Welcome to ask for more!

  Best regards

  Peter

• Calculation of FCS Ethernet-II

  Hello

  The length of the frame of an Ethernet-II frame is not specified in the framework itself, but determined by the IFG (Inter frame Gap) to 10Base-T. Fact a front switch and store must now go through any of the frame again to check the FCS? Or can he calculate the FCS during the reception of the frame and somehow know not to include the FCS itself field calculation?

  Regards Marcel

  Marcel,

  In Ethernet, FCS is based on a cyclic redundancy check, or a CRC calculation. Without getting too deep into mathematics, CRC is the remainder after Division of two polynomials - the first polynomial corresponds to the data to be protected, the second polynomial is the specific setting of the CRC mechanism in use, and after dividing them, the rest is the CRC value. As to divide two ordinary integers, this is what has been "missing" in the first polynomial to a "whole" multiple of the second polynomial. If the rest is "added" to the first polynomial, next time CRC calculated on the first polynomial (now while the rest was added), the new is calculated will be zero, as the first polynomial becomes now a "whole" multiple of the second polynomial.

  This is used to check the FCS efficiently. A switch does not need to wait for a future overall framework, then calculate the CRC on everything except for the FCS field and compare the result with the FCS field. Instead, the switch can simply calculate the CRC value because the frame is delivered, and at the end, when a full frame is received and the CRC was calculated on the entire frame data, including its FCS, the result of the CRC field must be zero. If it is different, an error occurred.

  Best regards
  Peter

• iSCSI without Jumbo frames for 15 Virtual Machines

  I have a physical to VME to be implemented which took the material for the SAN already purchased and resources research I see I have a HP MSA2324i table, two HP DL 380 G6 servers with two HP 2512 switches, but I found that this switch does not support jumbo frames.

  This means that I'll have to stick to the default 1 500 bytes for Ethernet iSCSI frames and I worry, how this may affect the performance of storage network.  I have migrated 15 servers, and of them, I have both SQL Server 2005 and a role of mailbox Exchange 2010 for 100 users.

  My thought is that I have a load of really light work that the SQL Server, databases don't support every 20 users and I should be able to keep these virtual machines running efficiently without the use of frames.

  Are there experiences of the V sphere 4.1 functioning when using standard Ethernet iSCSI?

  See you soon

  Kyle

  I don't have not upgraded to 4.1 yet, but we ran standard ethernet iSCSI on 3.5 for several different machines and never encountered any problems.    VSphere is out with enabled frames, but I did not notice a huge difference.   I think you'll be fine, but you should definilty keep an eye on things.

  Here's a nice blog on putting in place of iSCSI for vSphere environments, http://virtualgeek.typepad.com/virtual_geek/2009/09/a-multivendor-post-on-using-iscsi-with-vmware-vsphere.html

  If you have found this device or any other useful post please consider the use of buttons useful/correct to award points

• Incoming packets were discarded on Dell 6248 switch

  Hello guys,.

  I'm having a problem on my network. From time to time the icmp echo packets are lost and this causes our monitoring system trigger false alarms.

  I checked interfaces for switches and found the discarded packet counter is incremented in one of them.

  Flow control is enabled on the interface and there is no frame break sent.

  The duplex on both ends are correct are the port speeds.
  The firmware of the switch is 3.3.9.1 and the model is a PowerConnect 6248 switch.

  view statistics ethernet 1/g48

  Total packets received (bytes)... 2019770477
  Packets received 64 bytes... 945800
  Packets received from 65 to 127 bytes. 1105872
  Packets received from 128 to 255 bytes... 152970
  Packets received 256-511 bytes... 445738
  Packets received 512-1023 bytes... 155436
  Packets received 1024-1518 bytes... 414040
  Packets received > 1518 bytes... 634118
  64 bytes of RX and TX packets... 946019
  RX and TX 65-127 bytes packet... 3294655
  Packet RX and TX 128 to 255 bytes... 235082
  RX and TX 256-511 byte packets... 893732
  RX and TX 512-1023 byte packets... 311408
  RX and TX 1024-1518 byte packets... 436671
  RX and TX 1519-2047 bytes packets... 873826
  RX and TX 2048-4095 bytes packets... 0
  RX and TX-9216 4096 bytes packets... 0

  Total packets received without errors... 3853974
  Unicast packets received... 3421088
  Received multicast packets... 211575
  Received broadcast packets... 221311
  -Other - or ITU (q)
  Receive packets ignored... 506

  Total packets received with errors of MAC... 0
  Jabbers received... 0
  Fragments / sousdimensionnés has received... 0
  Alignment defects... 0
  FCS Errors..................................... 0
  Overruns....................................... 0
  802. 3 x Pause frames received... 0
  Unacceptable frame type... 0

  Total of transmitted packets (bytes)... 858789293
  64 byte packets transmitted... 219
  65-127 bytes transmitted packets... 2188783
  Packets transmitted 128 to 255 bytes... 82112
  256-511 bytes transmitted packets... 447994
  512-1023 bytes transmitted packets... 155972
  1024-1518 bytes transmitted packets... 22631
  Transmitted packets > 1518 bytes... 239708
  Size of the image of max... 1518

  Total packets transmitted successfully... 3137419
  Transmitted unicast packets... 3034928
  -Other - or ITU (q)
  Multicast packets transmitted. 1628
  Broadcast packets transmitted. 100863
  Transmit packets ignored... 0

  Total transmit packets ignored... 0
  Single Collision frames... 0
  Several images of Collision... 0
  Excessive Collision management... 0

  802. 3 x Pause frames transmitted... 0
  GVRP PDU received... 0
  GVRP PDUs of transmitted... 0
  GVRP failure records... 0
  BPDU: 0 sent, received 0

  EAPOL frames transmitted... 0
  EAPOL Start received frames... 0

  Thanks in advance.

  Humm,

  We have changed our duo of remote of a failure wan link and the interface mistakes of count stop. Everything is the same: traffic, applications, etc. Not a clue about what happened because there is a Linux between the equipment of the carrier and the switch (bad packets would have fallen in the interface of linux machine).

  We turn now to the carrier of the explanations/solutions.

  Thank you for your time!

• iSCSI - dedicated VLAN vs traffic switch

  I have a fairly low vSphere - 2 ESX hosts with 6 VM environment (will increase to 12 + VM the end of the year).  My iSCSI SAN has only 1 interface iSCSI traffic.  I currently have a VLAN defined on my switch/GB of network traffic for iSCSI traffic.  I know that the ideal is to have traffic iSCSI on its own switch.  It would be overkill for my environment? I can buy a HP ProCurve 1810 switch for under $ 400.

  Vote for her dedication also.

  In addition, you can change the iSCSI performance by substituting "automatic negotiation" in manual mode

  setting the parameters of speed of the card NETWORK and the switch. This allows you to

  enable control flow of traffic on the NETWORK adapter and the switch, Ethernet

  frames on the NETWORK adapter and the switch to 9000 bytes or more-

  data transfer more far in each packet while requiring less

  overhead. Extended frames are expected to improve the flow as well

  less than 50%.

  ---

  iSCSI SAN software

  http://www.starwindsoftware.com

• WRT310N - Tests of speed than 802.11 g or 802.11n are MUCH slower than Ethernet

  Hello. I have a WRT310N router connected to a cable modem. Because my internet connection is capped at 16 Mbps, I wait like http://speedtest.net/ speed tests and http://www.speakeasy.net/speedtest/ are very similar on Ethernet and wireless.

  The results more wireless are extremely poor (less than 1 MB/s) but via Ethernet, they are all around 16 Mbit/s.

  I first noticed questions during video streaming on Netflix HD for my XBOX 360 more 802.11n. My internet connection is fast enough for this, but not the video downgrades. This is clearly a problem with my wireless setup, but I don't know why it is so poor.

  Any suggestions are greatly appreciated.

  Thank you
  Jared

  Disable the made frame burst and also reduce the MTU to 1365 on the Configuration tab and click on save settings... Now, cycle power to the router and check... If this makes no difference then, try upgrading/re-flash firmware of the router and re-configiure the router from scratch.

• How to use a single Ethernet interface as a 802. 1 q trunk with several logical addresses in Windows XP?

  Here's my question (s).  I have a rack of equipment that is used in a lab environment (8 routers workgroup and workgroup switches 8).  I have that devices connected to a series of core (1 core router and 3 switches to base) devices.  On one of my basic switches, 24 port is configured as a trunk port, allowing 8 all working group devices to connect and use the TFTP services on a computer.  This is my issue starts.

  My computer is a Dell Optiplex running Windows XP Professional SP3.  It has two physical Ethernet NIC cards, being a Broadcom NetExtreme 57XX and the other is a Linksys EG1032.  On the computer I was using before, Linksys NIC was subdivided into logic miniports and authorized for 802. 1 q trunking base switch.  It's how each workgroup devices then used services TFTP on the PC.  I need help in this reconfiguration on the current computer.

  Can someone help me or point me in the direction of 'how to' articles?  Thanks in advance.

  Jim

  Hi Jim,.

  Your Windows XP question is more complex than what is generally answered in the Microsoft Answers forums. It is better suited for the IT Pro TechNet public. Please post your question in the forum TechNet for assistance:

  http://social.technet.Microsoft.com/forums/en/itproxpsp/threads

  Hope the helps of information.

• Grouping of NETWORK cards causing the ESXi to retransmit ethernet frames received.

  I had an HP Proliant DL380 G5 ESXi 5.1.0 connected to a Cisco 3750 Switch stack.

  All by performing a tcpdump on a host without a report, I discovered that he was under the bombardment with ethernet frames for the MAC address of a computer virtual located on a host across the data center. After a few brief troubleshooting, I discovered that I was able to stop those erroneous frames by disabling NETWORK adapters on my VMWare host group.
  
  I believe that in my situation when ESXi is configured to use two network cards to all frames received on vmnic0 and retransmits them on vmnic1 and vice-vesa. I experienced these symptoms when ESXi is configured for failover with an active adapter and adapter mode standby and I also experienced the same symptoms in the following load balancing configuration.
  

  
  

  Symptoms: some time after activating the load balancing, all frames Ethernet for the MAC address of a virtual computer on the affected host are broadcast on each switch port in the entire data center.
  
  Steps to reproduce:
  (1) implementation below configuration.
  (2) unplug the ethernet cable connecting vmnic1 and switch1 port gi2/0/4
  (3) run the host 1.1.1.1 EI - n - q tcpdump on any machine physics linux in the data center (don't even have to be connected directly to 1).
  Confirm there is no packet seen with the IP address of 1.1.1.1 destination
  (4) plug the cable between vmnic1 and switch1 gi2/0/4 port ethernet
  (5) wait 60 to 120 seconds
  (6) watch a burst of frames ethernet with the destination MAC address of the VM (which owns 1.1.1.1) in the output of tcpdump

  Cisco Configuration:

  hostname switch1
  !
  src-dst-ip port-channel load-balance

  !

  interface GigabitEthernet1/0/4

  Description vmnic0.host0 (NIC 1)

  switchport trunk encapsulation dot1q

  switchport mode trunk

  channel-group mode 4 on

  spanning tree portfast trunk

  end

  !

  interface GigabitEthernet2/0/4

  Description vmnic1.host0 (NIC 2)

  switchport trunk encapsulation dot1q

  switchport mode trunk

  channel-group mode 4 on

  spanning tree portfast trunk

  end

  !

  Interface Port-Channel 4

  Host0 description

  switchport trunk encapsulation dot1q

  switchport mode trunk

  spanning tree portfast trunk

  end

  
  Configuration of ESXi
  vSwitch0

  Grouping of NETWORK cards / Load Balancing: route based on IP Hash
  Grouping of NETWORK cards / failover detection network: link status only
  Grouping of NETWORK cards / notify switches: Yes
  NIC Teaming / relief: Yes
  Grouping of NETWORK cards / adapters active: vmnic0, vmnic1
  NIC Teaming / standby adapters: nothingness
  NIC adapters grouping / unused: nothingness
  Security / Promiscious Mode: reject

  Security / MAC address changes: accept
  Security / forged passes: accept

  
  #1 Virtual Machine port group
  Network label: 'Public '.

  VLAN: 27
  Grouping of NETWORK cards: all unchecked (inherited)

  #2 Virtual Machine port group
  Network label: "trunk".
  VLAN: 4095
  Grouping of NETWORK cards: all unchecked (inherited)

  VM kernel Port #1
  Network label: 'management '.
  VLAN: 2

  Grouping of NETWORK cards: all unchecked (inherited)

  VM #1
  

  OS: Windows Server 2003
  NIC 1 / adapter: Flexible
  NIC 1 / network Label: 'Public '.

  IP address: 1.1.1.1/24

  I apologize for the delay in my response.

  Unplug physically 2 cable NETWORK card on the host and configuration mirrored port on the switchport to 1 NETWORK adapter of the host, I have been able to confirm that the host VMWare issues guides on NIC1 with a destination MAC address of one of its own VM.

  After carefully reviewing the captured data, I noticed that the destination frames wrong "02:bf:cb:50:a2:76" MAC address actually belonged to "Local Area Connection 1' one of my Windows 2003 Server WHAT VM installed on the suspected host.

  Dig a little deeper, I discovered that this virtual NETWORK card is presented to the operating system as
  Name: Local 1 network connection
  "Type: VMware Accelerated AMD PCNet adapt."
  MAC: 02-BF-CB-50-A2-76

  But the configuration of the virtual machine in vCentre is
  Name: Network adapter 1
  Type: Flexible
  MAC: 00: 0C: 29:fa:e8:83

  Note the different MAC addresses.

  Digging a little further I discovered that Windows 2003 server has configured on "Local 1 network connection" network load balancing and NLB is the cause of the altered MAC address.

  Rather than to investigate further I have just placed a load balancer linux before the server windows 2003 cluster and that you turn off NLB.

  But I suspect that there is still a fundamental problem in the Virtual Switch VMware with how he learns the MAC addresses of the virtual machine is using flexible vNIC. In particular, with a virtual machine that uses a form to override the MAC address such as that used by NLB.

• Sniffing the ethernet frames

  Asked in 2002, with no useful resoultion.

  In Labview, can I plug into a network port and get all network traffic? The application I am working on needs to start when a certain packet is sent on the network. I would like to analyze the network traffic for this package and the trigger when I see it.

  Thank you

  You can use the TCP listening VI to create a port to listen on a specific port. If a connection is established, then you can use TCP Read to read the stream of bytes. However, you cannot go lower than with the LabVIEW functions. Looks like you want to do something similar to what is Wireshark? If so, you should do a search for WinPCap on these forum. Someone had begun to write functions that would be interface to WinPCap (which is used by Wireshark). Don't know how far he got. I'd written about half a dozen screws that calls the WinPCap library via a helper DLL and it used to capture raw packets between a PC and an instrument.

  EDIT: I see that altenbach found the link.

• Ethernet and Extreme from Apple

  When I connect my extreme Apple to my Linksys 120n/wifi modem should I disable the wifi modem. And should I connect my ethernet cable to my home network for the Linksys or the Apple Extreme. MacBook on the network can see the hard drive connected to the extreme USB but my smart TV and AV receiver cannot. They are hard cable cat 5 ethernet screws or can be wifi. Thank you

  Hello Gerrydir,

  Thank you for asking your question here in Apple communities. To ensure you get the best answer based on the installer that you hope to get, here are the items that I recommend to help you with your question.

  Airport extreme Setup Guide

  Plug your AirPort Extreme

  Before you plug your AirPort Extreme, rst plug cables appropriate to the ports you want to use:

  • Connect the Ethernet cable connected to your cable or DSL modem (if you will connect to the Internet) on port Ethernet WAN (<).

  • Connect a USB cable to the USB port (d) on your AirPort Extreme for a USB printer, a hard drive or a hub.

  • Connect an Ethernet cable from an Ethernet device to one of the ports LAN Ethernet (G). After connecting the cables for all devices, you plan to use, connect the power cord to the power socket and plug your AirPort Extreme into a power outlet. There is no power switch.

    Important: Use only the power cord provided with your AirPort Extreme.

    When you plug in the AirPort Extreme power cord into a power outlet, the indicator light turns amber when starting, then amber ash during installation. The status led lights green once your AirPort Extreme is configured and connected to the Internet or a network.

    When you connect the Ethernet cable to the Ethernet ports, the lights above them glow green.

  AirPort base stations: install and configure a wireless network extended (802.11n)

  Wi - Fi base stations: extend the range of your wireless network by adding additional base stations to Wi - Fi

  If you have a device different from the airport as the installation guide that I have provided, please check your specific installation guide here: Airport manuals.

  See you soon.

• Cannot configure embedded card Gigabit Ethernet...

  Hello

  I am using Bootcamp 2.x with 10.6.x on a 2011 end pro macbook.

  Is Windows XP SP3

  I want (I need) using the integrated Ethernet Gigabit 10/100/1000 BASE-T, but cannot configure it!

  My Broadcom 802.11n wireless card is in place and works fine

  Documentation of the specifications Apple says:

  • Gigabit built-in 10/100/1000BASE-T Ethernet (RJ-45 connector)

  When I ran PC-Wizard, he told me:

  Network card:

  BCM57765 of Broadcom NetXtreme Gigabit Ethernet PCIe

  If I go to computer management program and open the list of Device Manager

  Card Ethernet is not visible in the list of network... and control has a ethernet cards? icon...

  How to proceed with the installation?

  Any advice?

  Thanks in advance

  You have the DVD with drivers?

  See also install Windows 7 and previous versions on your Mac with Boot Camp - Apple Support .

• Adjustment to the high network roaming in condo wired Ethernet (no Modem)

  HI - our condo has one Ethernet Jack in every room with the signal directly from the building router. The IP address is unique for all the outlets in our condo.

  In my office, I have a cable of the Time Capsule to taking Ethernet to my office. I have other devices connected to the TC, so he needs to stay there. Unfortunately, it is not very centrally located in our condo.

  In our room, the signal often falls because it is the longest distance in our condo to the TC. But... we have an ethernet jack in our room.

  So I bought an AirPort Express, but the installation seems to really push "extended network" wireless. Because the signal is somehow in our room, it is unnecessary to EI in there. So I set to halfway between the two. On the floor, not in a large space.

  I would like to set up a 'of roaming network', but I can't seem to reproduce the screen shot in these instructions:

  Wi - Fi base stations: install and configure a roaming network (802.11 a/b/g/n)-Apple Support

  But, in addition, their illustrations make it look like the AE should be wired in the TC.

  I tried using the WAN of AE port, but that didn't do it.

  Is this possible? Any direction would be great. Of course, I want the effect of the '1 network for our entire condo' and not switching WiFi networks for different parts of the housing.

  Thank you!

  Jon

  So I bought an AirPort Express, but the installation seems to really push "extended network" wireless.

  This happens when the Ethernet connection is not working, or you did not the Ethernet connection before trying to implement the Express. Use a short piece of spare Ethernet cable... any length will do... to connect the Express to the time Capsule to implement the Express in this way. After setting the Express up to... Move the Express at the remote location and the Ethernet connection it.

  If it doesn't work there, then you know that the Ethernet port or cable is not working properly.

  I would like to set up a 'of roaming network', but I can't seem to reproduce the screen shot in these instructions:

  Wi - Fi base stations: install and configure a roaming network (802.11 a/b/g/n)-Apple Support

  Unfortunately, these instructions are 4 years and more, so the General information of the document is good, the specificities of 'how to' would not be used. Instead, you use Apple 'Installation Wizard', which literally did almost everything for you automatically on the installer.

  After the back if you need some advice.

• NB510-109 - driver missing for Ethernet and network controller

  Hi again

  I replaced the HARD drive on my NB510-109 and installed W7 32-bit teacher. Windows unfortunately has no Driver for my network controller and Ethernet. The seller of Ethernet is 1969 (Atheros), but the driver I found does not work.

  The seller of network controller is 10EC (Realtek or Acer) but I can't find a driver.

  Is there a link where I can load the original driver CD/DVD?

  PS: I could not save the original data of my old HDD for HARD drive has not finished.

  Are you looking for driver LAN or WLan driver?
  I m asking because the network controller could mean the WLan or LAn card.

  However, the laptop supports the Atheros LAN card and you must install the Atheros LAN driver.
  The WLan card is made but Realtek. Its 802.11bgn RTL8188CE card Wlan.

  On the page of the Toshiba UE driver you can find two drivers Atheros LAN to Win 7 32 bit:
  v 2.0.9.9
  v 2.0.11.12

  I recommend you to check them both.

  Realtek WLan driver can be downloaded from Toshiba WLan Portal:
  http://APS.toshiba-tro.de/WLAN/?page=downloads