CCIE written test questions [7:2497]
Hello all, I have three questions that I cannot seem to find the answer to. ANy of you learned people out there would be very much appreciated if you could give me your best shot at these. I have my written tommorow and these questions are stuck in my craw; What is Fast Link Pulse? What is meant by TCP "Slow Start"? What is the result of sending a loop up signal to the CSU/DSU? I eagerly await any input. Thanks, Scott _ Get your FREE download of MSN Explorer at http://explorer.msn.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=2497&t=2497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE written test questions [7:2497]
At 09:19 PM 4/29/01, scott mann wrote: >Hello all, > >I have three questions that I cannot seem to find the answer to. ANy of you >learned people out there would be very much appreciated if you could give me >your best shot at these. I have my written tommorow and these questions are >stuck in my craw; > >What is Fast Link Pulse? > >What is meant by TCP "Slow Start"? See RFC 2001. http://www.cis.ohio-state.edu/cgi-bin/rfc/rfc2001.html >What is the result of sending a loop up signal to the CSU/DSU? > >I eagerly await any input. > >Thanks, >Scott > > >_ >Get your FREE download of MSN Explorer at http://explorer.msn.com >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=2501&t=2497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCIE written test questions [7:2497]
Some answers" -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of scott mann Sent: Sunday, April 29, 2001 6:19 PM To: [EMAIL PROTECTED] Subject: CCIE written test questions [7:2497] Hello all, I have three questions that I cannot seem to find the answer to. ANy of you learned people out there would be very much appreciated if you could give me your best shot at these. I have my written tommorow and these questions are stuck in my craw; What is Fast Link Pulse? http://www.cisco.com/warp/public/473/46.html one of four documents that came up when searching CCO. Auto negotiation for 10/100 ports - technical details What is meant by TCP "Slow Start"? http://www.cisco.com/warp/public/759/ipj_3-3/ipj_3-3_futureTCP.html one of 150 documents returned when searching CCO "part of the recovery process when acks are not received for packets sent. . In this mode the sender immediately retransmits the lost packet and then halves its sending rate, continuing to send additional data as permitted by the current TCP sending window. " probably a bit more complex. What is the result of sending a loop up signal to the CSU/DSU? CL: CSU goes into a loop state - i.e. depending upon who is doing the looping, data received by the CSU is sent back to the originator, rather than passed on to the network. One of the telco ( and router side ) troubleshooting techniques used to determine where carrier network problems ( if any ) may exist. Can also indicate if the CSU itself is bad. There are probably other things that happen as well. HTH Best wishes on your exam. I eagerly await any input. Thanks, Scott _ Get your FREE download of MSN Explorer at http://explorer.msn.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=2503&t=2497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE written test questions [7:2497]
1) In short Fast Link Pulse (FLP) is used to perform autonegotiation on twisted pair media. For details see: See: http://cisco.com/warp/public/473/46.html 2) TCP slow start is flow control mechanism employed by the sender. This allows the sender to probe the maximum window size it may use for transmisson without significantly impacting throughput. It starts by transmitting data in one window chunks of a size specified by the lowest MSS advertised by each host. The transmitter calls this window the congestion window (cwnd). For each ACK received the congestion window is increase by one. Only cwnd segments may be outstanding at any one time. This increases until packets begin to be dropped. This results in an exponential growth of the number of segments that will be transmitted before recieving an ACK. See: - TCP/IP illustrated by W. Richard Stevens - "Congestion Avoidance and Control," V. Jacobson, ACM SIGCOMM-88, August 1988. 3) The CSU/DSU should go into loopback mode and instead of passing data through its framer and on to the DTE it should send the data back to the network. This is useful for circuit testing. --trey scott mann wrote: > Hello all, > > I have three questions that I cannot seem to find the answer to. ANy of you > learned people out there would be very much appreciated if you could give me > your best shot at these. I have my written tommorow and these questions are > stuck in my craw; > > What is Fast Link Pulse? > > What is meant by TCP "Slow Start"? > > What is the result of sending a loop up signal to the CSU/DSU? > > I eagerly await any input. > > Thanks, > Scott > > _ > Get your FREE download of MSN Explorer at http://explorer.msn.com > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=2515&t=2497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE written test questions [7:2497]
TCP "Slow Start" is a term used to describe TCP's windowing mechanism and the process that it goes throught to expand and contract the window size. It describes how TCP starts out with a small window size and slowly increases it. Then, upon loss of data will immediately reduce this window only to slowly ramp it up again. Hope this helps... ""scott mann"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hello all, > > I have three questions that I cannot seem to find the answer to. ANy of you > learned people out there would be very much appreciated if you could give me > your best shot at these. I have my written tommorow and these questions are > stuck in my craw; > > What is Fast Link Pulse? > > What is meant by TCP "Slow Start"? > > What is the result of sending a loop up signal to the CSU/DSU? > > I eagerly await any input. > > Thanks, > Scott > > > _ > Get your FREE download of MSN Explorer at http://explorer.msn.com > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=2547&t=2497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
