Re: Common operational misconceptions

2012-02-15 Thread Mathias Wolkert
Autoneg. The old timers that don't trust it after a few decades of decent code. Or those that lock one side and expect the other to adjust to that. /Tias 15 feb 2012 kl. 21:47 skrev John Kristoff : > Hi friends, > > As some of you may know, I occasionally teach networking to college > student

Re: Choice of address for IPv6 default gateway

2012-01-26 Thread Mathias Wolkert
Hi On 1/25/12 23:53 , Owen DeLong wrote: [...] > Note, you can use RA for default gateway while still using static addressing. Could you give me a little bit more on this? It seems to me that most platforms stop listening to RAs once you give them a static address. Letting a host run slaac and

Re: flow generating tool

2011-09-27 Thread Mathias Wolkert
Linux pktgen. http://landley.net/kdocs/ols/2005/ols2005v2-pages-19-32.pdf /Tias On 9/26/11 12:07 , Naiden Dimitrov wrote: > Hello, > > > > I need a tool that generates traffic flows from different source IP addresses > for network tests. > > > > Regards, > > > > Naiden Dimitrov > Mobile: +359 8

Re: Linux Router: TCP slow, UDP fast

2009-02-15 Thread Mathias Wolkert
I would turn off ethernet flow control. Maybe you already have. It can be really mean on tcp's own flow control if the switch has an issue of some kind (load). /Tias 15 feb 2009 kl. 10.24 skrev Chris : Thanks, Karl, Allen and Nickola. I failed-over to another router last night and briefly

Re: Network diagram software

2009-02-11 Thread Mathias Wolkert
Thanks all for your input. One thing that hits me is how different networks are documented. Are there any best practice communicated (RFC/IETF)? I like the idea of having one physical version showing cables and devices (CDP/EDP/LLDP view pretty much) and one logical view showing IP subnets. Many t

Network diagram software

2009-02-11 Thread Mathias Wolkert
I'd like to know what software people are using to document networks. Visio is obvious but feels like a straight jacket to me. I liked netviz but it seems owned by CA and unsupported nowadays. What do you use? /Tias