I’ve never seen this (other than REALLY old equipment that didn’t support auto 
speed/duplex period).

 

And with GigE and above, I thought auto was the only recommended method.

 

Cisco has grown mostly via acquisitions, so much of their equipment was not 
originally designed by “Cisco” engineers.  Not sure why people assume putting 
the Cisco logo on the box suddenly gives something bad Ethernet 
characteristics.  More likely, Cisco products tend to have a lot of 
configurable port parameters, and the defaults may not be to everyone’s liking. 
 I think a common one is the several second delay before entering the 
forwarding state, if you have STP enabled without PortFast.  People view this 
as a problem, rather than a default setting you can easily change if it bothers 
you.

 

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chuck McCown
Sent: Monday, February 6, 2017 8:54 AM
To: af@afmug.com
Subject: Re: [AFMUG] Cisco Nexus Switch / Mikrotik CCR

 

I have had Cisco products not negotiate to the highest possible connection 
before.  So I always locked one end down.  

 

From: Ken Hohhof 

Sent: Monday, February 06, 2017 7:52 AM

To: af@afmug.com <mailto:af@afmug.com>  

Subject: Re: [AFMUG] Cisco Nexus Switch / Mikrotik CCR

 

Why do some people always say “turn off auto speed and duplex” when they see 
Cisco?  This goes against my experience and training.  All my Cisco routers and 
switches are set for auto.  The world has not ended AFAIK.

 

Is this something unique to the Nexus product line?

 

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Carlos Alcantar
Sent: Monday, February 6, 2017 2:01 AM
To: af@afmug.com <mailto:af@afmug.com> 
Subject: Re: [AFMUG] Cisco Nexus Switch / Mikrotik CCR

 

make sure you turn off any auto duplex and speed settings and hard set both 
sides.  make sure your also checking all your stp settings those could be fun 
and shutting down ports if you have any type of vlan mismatches ect happening.

 

 

 

Carlos Alcantar

Race Communications / Race Team Member 

1325 Howard Ave. #604, Burlingame, CA. 94010

Phone: +1 415 376 3314 / car...@race.com <mailto:car...@race.com>  /  
<http://www.race.com/> http://www.race.com

 

  _____  

From: Af <af-boun...@afmug.com <mailto:af-boun...@afmug.com> > on behalf of 
Jason McKemie <j.mcke...@veloxinetbroadband.com 
<mailto:j.mcke...@veloxinetbroadband.com> >
Sent: Sunday, February 5, 2017 11:11:48 PM
To: af@afmug.com <mailto:af@afmug.com> 
Subject: [AFMUG] Cisco Nexus Switch / Mikrotik CCR 

 

Has anyone had any success with linking these two via fiber? We were unable to 
get the link to work, so I ended up using a Cisco router as an intermediary.  
I'd like to get rid of that extra hardware if possible. 

 

-Jason

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