Results 1 to 13 of 13

Thread: network device

  1. #1

    network device

    layer 3 switch workes witch layer?


  2. #2
    Junior Member
    Join Date
    May 2008
    Answers
    1

    Re: network device

    Network layer


  3. #3
    Junior Member
    Join Date
    May 2008
    Answers
    8

    Re: network device

    Quote Originally Posted by kaypee_ccna View Post
    Network layer
    here it is
    NETWORK LAYER :---
    This layer is third layer of osi model. this layer convert the segments fromthe transport layer to packets and also responsible for path determinations and routing and also responsible for logical addressing (also known as network address or layer 3 address) eg; ip address...
    \ protocol defined at this layer are ip,ipx icmp,rip, bgp,ospf
    devices operate at this layer are routers and swithes ( only layer 3 swithes) thats it.....


  4. #4
    Junior Member
    Join Date
    May 2008
    Answers
    8

    Re: network device

    layer 3 switch work at network layer
    layer 2 switch work at datalink layer

    layer 3 switches using network address for filtering and forward packets
    layer 2 switches usind MAc address for filtering and forward packets


  5. #5
    Junior Member
    Join Date
    May 2008
    Answers
    8

    Re: network device

    any more queations dont hesitate just ask me


  6. #6
    Junior Member
    Join Date
    Aug 2008
    Answers
    19

    Re: network device

    Quote Originally Posted by abhishek.masyuni View Post
    layer 3 switch workes witch layer?
    switch works on the layer data link layer


  7. #7
    Expert Member
    Join Date
    Jun 2007
    Answers
    260

    Re: network device

    hi,

    The network layer determines that how data transmits between the network devices. It also translates the logical address into the physical address e.g computer name into MAC address. It is also responsible for defining the route, managing the network problems and addressing. Router works on the network layer and if a sending device does not break the data into the similar packets as the receiving device then network layer split the data into the smaller units and at the receiving end the network layer reassemble the data.

    Network layer routes the packets according to the unique network addresses. Router works as the post office and network layer stamps the letters (data) for the specific destinations.
    Protocols: These protocols work on the network layer IP, ICMP, ARP, RIP, OSI, IPX and OSPF.
    Network Devices: Network devices including Router, Brouter, Frame Relay device and ATM switch devices work on the network layer.

    Thanks
    Sushma


  8. #8
    Expert Member
    Join Date
    Apr 2008
    Answers
    1,859

    Re: network device

    Hi friend..

    Definition of: layer 3 switch a network device that forwards traffic based on layer 3 information at very high speeds. Traditionally, routers, which inspect layer 3, were considerably slower than layer 2 switches. In order to increase routing speeds, many "cut-through" techniques were used, which perform an "inspect the first packet at layer 3 and send the rest at layer 2" type of processing. Ipsilon's ip switch and cabletron's securefast switches were pioneers in cut-through switching.

    From software to hardware as more routing lookup functions were moved from software into the asic chips, layer 3 switches could inspect each packet just like a router at high speed without using proprietary cut-through methods. If a layer 3 switch supports packet-by-packet inspection and supports routing protocols, it is called a "routing switch" or "switch router," which simply means "fast router." for example, cisco calls its high-end routers gigabit switch routers. More inspection takes time the more deeply a packet is examined, the more forwarding decisions can be made based upon type of traffic, quality of service (qos) and so on. T

    o obtain this information requires digging into the packet's headers to ferret out the data, which takes processing time. To understand how packets are formed, see tcp/ip abc's.

    The following shows what data is examined at each layer. Forwarding decision layer based on examples 2 mac address ethernet, token ring, etc. 3 network address ip, ipx, etc. 3 service quality ip, ipx, etc. 3 application ipx socket 4 application ip socket

    thanks
    deepasree


  9. #9
    Junior Member
    Join Date
    Sep 2008
    Answers
    1

    Re: network device

    network device


  10. #10
    Junior Member
    Join Date
    Sep 2008
    Answers
    1

    Re: network device

    this is 3rd layer from bottam to top in osi modal
    this layer is impotant layer
    in this network types shown


  11. #11
    Junior Member
    Join Date
    Nov 2008
    Answers
    2

    Exclamation Re: network device

    Quote Originally Posted by monami85 View Post
    any more queations dont hesitate just ask me
    can u tell me that how can i difine that what is subnetmask , why it is must in networking and what is the working of it?


  12. #12
    Junior Member
    Join Date
    Oct 2008
    Answers
    10

    Re: network device

    Hi

    Switch is a (layer -2 device ) used in data link layer.


  13. #13
    Junior Member
    Join Date
    Jan 2009
    Answers
    6

    Smile Re: network device

    layer 3 switch is completely work in network layer of osi model


  14.  Sponsored Ads
    Ad


     

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Applying for a job can be a stressful and frustrating experience, especially for someone who has never done it before. Considering that you are competing for the position with a at least a dozen other applicants, it is imperative that you thoroughly prepare for the job interview, in order to stand a good chance of getting hired. That's where GeekInterview can help.
Interact