Sounds like my CCNP - with the exception of the currency ;) Sent from my iPhone
On 08/07/2010, at 3:06, "Michael Lipsey" <[email protected]> wrote: > Matt, thanks for the insight. To be honest, I have never done anything more > than a simple point to point (always subinterfaced now that I think about > it) frame relay connection in real life myself. The only time I have ever > done anything remotely more than that is in a study scenario. > > Without trying to show my age...my CCNP is over 10 years old and still > current. =-) > > -Mike > > -----Original Message----- > From: Matt Hill [mailto:[email protected]] > Sent: Wednesday, July 07, 2010 1:09 AM > To: Michael Lipsey > Cc: [email protected] > Subject: Re: [OSL | CCIE_RS] To Subinterface or not to Subinterface > > Hi Mike, > > I ALWAYS use subinterfaces. They are much more flexible, and are not > susceptible to issues physical interfaces have (such as inverse ARP > and dynamic mappings). In the lab, of course you are bound to > whatever the problem statement says, but in reality subinterfaces > (even if there is just one DLCI) is much better. FWIW, without trying > to show my age, I was always using subinterfaces. I did not even know > that frame maps existed until I was starting to study for > certification related stuff. > > Short version - use subifs unless you must use something else. > > Cheers, > Matt > > CCIE #22386 > CCSI #31207 > > On 7 July 2010 17:02, Michael Lipsey <[email protected]> wrote: >> I was doing a practice lab with a pretty simple frame-relay configuration >> today, it caused me to go back and do a little review on Frame-relay and >> ospf network types. Feels silly to go back over that stuff again at this >> point but I spent an hour and half on it and feel better except for one >> thing. >> >> The frame-relay on this little practice lab was simple setup, R2, R4 and > R5 >> with R2 as the hub between them. Specified to not change the ospf network >> type (so it remains non-broadcast). >> >> >> The solution implements subinterfaces on R4 and R5's serial interface. It >> didn't really say to do that so I'm wondering what the logic might be that > I >> am missing this late night regarding if I should subinterface or not. >> >> Usually I subinterface if they tell me to (duh) or if there is some other >> indication of multiple subnets on the same physical interface - then I > will >> subinterface. Otherwise - am I forgetting another fundamental reason in >> frame-relay to do subinterfaces? >> >> Your thoughts are appreciated. >> >> -Mike >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com >> > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
