The only issues i see with auto-negotiate not working is when you go switch to switch or switch to router, and Cisco recommends that you always lock the speed and duplex when connecting between switches and routers. In the past, there were issues with the software in the switch that would cause auto-negotiate not to work, but for the most part i haven't seen to many issues with it not working in the past couple years.
---- ---- ---- ---- Chris Gotstein, Sr Network Engineer, UP Logon/Computer Connection UP http://uplogon.com | +1 906 774 4847 | ch...@uplogon.com On 3/25/2010 12:46 PM, Scott Reed wrote: > The question is why does Cisco still have a problem auto-negotiating? I > first saw this on Cisco switches over 10 years ago. > > Chris Gotstein wrote: >> Not sure what you mean? Been using Cisco switches/routers since 1998, >> never had any major issues with them. But they are definitly not plug >> and play. They have their quirks, but usually it's a config problem or >> a software upgrade needed. >> >> ---- ---- ---- ---- >> Chris Gotstein, Sr Network Engineer, UP Logon/Computer Connection UP >> http://uplogon.com | +1 906 774 4847 | ch...@uplogon.com >> >> On 3/25/2010 12:14 PM, Robert Andrews wrote: >> >>> Anyone have an insight why the father company of networking is so lame? >>> >>> On 03/25/2010 09:42 AM, Chris Gotstein wrote: >>> >>>> Always need to lock ports between switches, routers, etc. Been doing >>>> Cisco long enough to know that. Usually don't have to many problems >>>> with auto-negotiate on workstations and other end devices as long as >>>> the >>>> software on the switch is up-to-date. >>>> ---- ---- ---- ---- >>>> Chris Gotstein, Sr Network Engineer, UP Logon/Computer Connection UP >>>> http://uplogon.com | +1 906 774 4847 | ch...@uplogon.com >>>> On 3/25/2010 11:36 AM, Damian Wallace wrote: >>>> >>>>> Auto negotiation + Cisco = Fail. >>>>> If you have a Cisco switch, LOCK the ports. I have a 2950 that won't >>>>> talk to another 2950 unless the ports are locked. >>>>> >>>>> -----Original Message----- >>>>> From: mikrotik-boun...@mail.butchevans.com >>>>> [mailto:mikrotik-boun...@mail.butchevans.com] On Behalf Of Chris >>>>> Gotstein >>>>> Sent: March-25-10 9:17 AM >>>>> To: Mikrotik discussions >>>>> Subject: [Spam Bayesian - ] - Re: [Mikrotik] RB411AH Ethernet Issues - >>>>> Bayesian Filter detected spam >>>>> >>>>> Looks like it was an issue with the Cisco switch. Rebooted it and >>>>> things are working like normal. Very odd, never had that happen >>>>> before. >>>>> >>>>> ---- ---- ---- ---- >>>>> Chris Gotstein, Sr Network Engineer, UP Logon/Computer Connection UP >>>>> http://uplogon.com | +1 906 774 4847 | ch...@uplogon.com >>>>> >>>>> On 3/25/2010 11:14 AM, Jon Paul Kelley wrote: >>>>> >>>>>> I have had RB450's and RB493AH's just have bad ports. I had a >>>>>> RB493AH, >>>>>> >>>>> brand >>>>> >>>>>> new out of the static bag, would create massive packet collisions and >>>>>> >>>>> high >>>>> >>>>>> cpu utilization when a cable was plugged into a certain port. They >>>>>> >>>>> just go >>>>> >>>>>> goofy sometimes. That is why I no longer order 1 if I need 1. I order >>>>>> >>>>> 5 if I >>>>> >>>>>> need one. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> Jon Paul Kelley >>>>>> CKS Wireless >>>>>> 903-589-0044 Office >>>>>> 903-625-0741 Mobile >>>>>> 903-541-0889 Fax >>>>>> website: www.ckswireless.com >>>>>> >>>>>> >>>>>> -----Original Message----- >>>>>> From: mikrotik-boun...@mail.butchevans.com >>>>>> [mailto:mikrotik-boun...@mail.butchevans.com] On Behalf Of Chris >>>>>> >>>>> Gotstein >>>>> >>>>>> Sent: Thursday, March 25, 2010 11:01 AM >>>>>> To: Mikrotik discussions >>>>>> Subject: [Mikrotik] RB411AH Ethernet Issues >>>>>> >>>>>> I have a RB411AH up on a tower acting as a 2.4 AP. This morning i >>>>>> >>>>> lost >>>>> >>>>>> contact with the radio, but there was still power to the unit and the >>>>>> switch showed it was connected. Rebooted the RB, and i was able to >>>>>> access it again, but it was very slow. Decided to upgrade the >>>>>> >>>>> software >>>>> >>>>>> and copying the file locally took forever, very slow tranfer. >>>>>> >>>>> Replaced >>>>> >>>>>> the PoE and the ethernet surge, as well as the ethernet patch cables. >>>>>> Same problem, very slow data rates to the radio. I'm guessing it's a >>>>>> blown ethernet port on the board. Ordering a replacement today, but >>>>>> wondering if anyone else has ran into this issue before? >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> Mikrotik mailing list >>>>> Mikrotik@mail.butchevans.com >>>>> http://www.butchevans.com/mailman/listinfo/mikrotik >>>>> >>>>> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik >>>>> RouterOS >>>>> _______________________________________________ >>>>> Mikrotik mailing list >>>>> Mikrotik@mail.butchevans.com >>>>> http://www.butchevans.com/mailman/listinfo/mikrotik >>>>> >>>>> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik >>>>> RouterOS >>>>> >>>> _______________________________________________ >>>> Mikrotik mailing list >>>> Mikrotik@mail.butchevans.com >>>> http://www.butchevans.com/mailman/listinfo/mikrotik >>>> Visit http://blog.butchevans.com/ for tutorials related to >>>> Mikrotik RouterOS >>>> >> _______________________________________________ >> Mikrotik mailing list >> Mikrotik@mail.butchevans.com >> http://www.butchevans.com/mailman/listinfo/mikrotik >> >> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik >> RouterOS >> _______________________________________________ >> Mikrotik mailing list >> Mikrotik@mail.butchevans.com >> http://www.butchevans.com/mailman/listinfo/mikrotik >> >> Visit http://blog.butchevans.com/ for tutorials related to Mikrotik >> RouterOS >> >> > _______________________________________________ Mikrotik mailing list Mikrotik@mail.butchevans.com http://www.butchevans.com/mailman/listinfo/mikrotik Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS
