I wouldn't trust any scenario that has auto on one side and a hard set speed/duplex on the other. Cisco's never seemed to put a lot of faith behind their auto-negotiation. I know they used to recommend hard setting ports to begin with, and the 6500s I used to work with never could auto-negotiate properly with SUN servers;)
Michael On Thu, May 14, 2009 at 3:11 PM, William Affeldt <[email protected]>wrote: > It could also be that on the 3750 the port is showing 100 full but is > actually half duplex. The switch seems to be very buggy. > > > > ----- Original Message ----- > From: michael haynes <[email protected]> > To: William Affeldt > Cc: [email protected] <[email protected]>; > [email protected] <[email protected]>; [email protected] < > [email protected]>; [email protected] < > [email protected]>; [email protected] < > [email protected]> > Sent: Thu May 14 12:01:55 2009 > Subject: Re: [OSL | CCIE_RS] Switch and pc auto neg. > > The reason is that auto mode uses fast link pulses in order to negotiate > speed and duplex settings. If the client is hard coded to 100 full, there > are no fast link pulses going between the client and switch. The switch > decides that nothing else will do in our technologically advanced world > besides 'half duplex' - leading to duplex mismatch problems beween the > workstation and the switch. > > Michael > > > On Thu, May 14, 2009 at 1:43 PM, William Affeldt <[email protected]> > wrote: > > > Does anyone know the exact reason why if a switchport is set to auto > and a pc is hard set to anything it negotiates but gets errors? > > ----- Original Message ----- > From: Jared Scrivener <[email protected]> > To: William Affeldt; [email protected] <[email protected]>; > [email protected] <[email protected]> > Cc: [email protected] <[email protected]>; > [email protected] <[email protected]> > Sent: Wed May 13 21:26:04 2009 > Subject: RE: [OSL | CCIE_RS] Section 1 lab 18.6 > > They are synonyms in a sense. CAR is a policing method, but one of > many. > > Cheers, > > Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP > Sr. Technical Instructor - IPexpert, Inc. > URL: http://www.IPexpert.com <http://www.ipexpert.com/> < > http://www.ipexpert.com/> > Telephone: +1.810.326.1444 > Fax: +1.810.454.0130 > Mailto: [email protected] > > > -----Original Message----- > From: [email protected] [mailto: > [email protected]] On Behalf Of William Affeldt > Sent: Wednesday, 13 May 2009 10:31 PM > To: '[email protected]'; '[email protected]' > Cc: '[email protected]'; ' > [email protected]' > Subject: [OSL | CCIE_RS] Section 1 lab 18.6 > > Can some one explain when to use policing and when to use CAR. The > question said policing and the proctor guide used CAR. > > ----- Original Message ----- > From: [email protected] < > [email protected]> > To: Robert S Wyzykowski <[email protected]> > Cc: [email protected] <[email protected]>; > [email protected] <[email protected]> > Sent: Wed May 13 18:17:25 2009 > Subject: Re: [OSL | CCIE_RS] MRM Volume 3 Lab 7 Section 5.3 > > Robert, > > R4 does not need to join. Can you post your config? > If I get packet loss, I usually join the group manually and test > using pings, debugging along the way. > > Bryan Bartik > CCIE #23707 (R&S), CCNP > Sr. Support Engineer - IPexpert, Inc. > URL: http://www.IPexpert.com <http://www.ipexpert.com/> < > http://www.ipexpert.com/> > > > On Wed, May 13, 2009 at 7:09 PM, Robert S Wyzykowski < > [email protected]> wrote: > > > > I can't seem to get a successful test, and I don't know how > to troubleshoot why. Getting 100% packet loss. > The MRM configuration is pretty straight forward. Does R4 > need to join the group 230.230.230.230 for this to have a successful test? > I do a mtrace from R2 for 230.230.230.230 and there's nothing there. > > I watched the video solution, I have everything in place as > instructed, but no love. > > Please help. > Cheers! > > > > > > > > Robert Wyzykowski > Manager, Global Telecommunications > IMERYS > 30 Mansell Court East - Suite 220 > Roswell, GA, USA > Phone: +1 770 645 3734 > Mobile: +1 404-434 9000 > > > > > > > From: Dale Shaw > <[email protected]<dale.shaw%[email protected]><mailto: > dale.shaw%[email protected] <dale.shaw%[email protected]>> <mailto: > dale.shaw%[email protected] <dale.shaw%[email protected]> <mailto: > dale.shaw%[email protected] <dale.shaw%[email protected]>> > > > To: Joe Astorino <[email protected]> > Cc: [email protected] > Date: 05/13/2009 07:00 PM > Subject: Re: [OSL | CCIE_RS] test > > ________________________________ > > > > > On Thu, May 14, 2009 at 3:24 AM, Joe Astorino < > [email protected]> wrote: > > Hello? : ) > > > > Regards, > > > > Joe Astorino > > CCIE #24347 (R&S),CCDP,CCNP,CCDA,CCNA > > Sr. Support Engineer - IPexpert, Inc. > > URL: http://www.IPexpert.com <http://www.ipexpert.com/> < > http://www.ipexpert.com/> <http://www.ipexpert.com/> > > Ha! Great result :-) > > cheers, > Dale > > > > > > > -- > > > > > >
