Howard,

I would appreciate your view and the group on which one you guys would
prefer, Tag switching or Multicasting. We having been running into problems
with doing multiple windows XP imaging that can only handle up to 8
computers at a time. Multicast is enable at the layer 2 & 3 but still can't
run more than 8 multicast sessions using Norton tool to accept clients for
multicast. Once it receives the MAC address of the computer we send a
session out to image about 8 computers. The number of computer will
fluctuate doing more than 8 and sometimes only capable of doing no more than
3. If we do more than that it freezes up at 25% completion rate of the
image. We have over a thousand computers to upgrade to windows XP by mid to
late June. Our network has 6500 serious switches along with 7507 core
routers. The 6500 handle both layer2/3 functions. Any help will go a long
way. Thank you in advance for everyone's input in this matter.


-----Original Message-----
From: Howard C. Berkowitz
To: [EMAIL PROTECTED]
Sent: 5/28/03 3:50 PM
Subject: Re: Packet retransmit questiion [7:69715]

At 6:46 PM +0000 5/28/03, Robert Perez wrote:
>Hi all,
>
>I have a question on the CCIE 350-001 test.  I have heard differing
opinions
>on this but when traffic crosses a WAN connection and there are
problems who
>does the retransmit?? Host or RTR??
>
>1.) In Frame relay there is a line hit or corrupt packet on the WAn,
who
>retransmits, should be the source router correct?
>
>2.) In a point to point circuit w/HDLC there is a line hit or corrupt
packet
>who retransmits, should be the source router correct??
>
>3.) In a bridged environment with a WAN a T-1 takes a line hit or
corrupt
>packet who retrnasmits, should be the source host correct??

In all cases, the host, if you are running IP protocols that even 
specify retransmission.  TCP does, but UDP does not. RPC over UDP 
retransmits.

The only exception where the router would retransmit would be if you 
are running X.25, LAP-B, SSCOP, or SDLC.




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=69797&t=69797
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