Narendra, This is a general suggestion based on my own 2 years of studying for the CCIE. Please take this as constructive criticism. You need to do some serious reading to gain the knowledge necessary to learn these skills. Your questions here lack many of the very basic fundementals. Trying to learn the basics by asking an expert level mailing list is not the best way to approach gaining this knowledge for two reasons.
1. While many people here are very eager to offer all the help they can, if you continue to ask basic questions people will soon start to think that you are not putting in enough effort to learn on your own and may become less responsive. 2. You will likely get an incomplete picture of how things work, this can sometimes be worse than not knowing at all. For instance, with your last question you now know HOW to create a trunk port, but these explanations don't provide the WHY, and to truly know these topics you must know the HOW, the WHY, and the EXCEPTIONS to the rules. This way of learning only the commands, but not the information about what those commands really do contributes to some of the biggest holes I see in my peers understanding. This sometimes makes them dangerous in the network. They know that it is good to put spanning-tree portfast on access ports so they assume that it must be a good idea to put that on a trunk port, without knowing the difference between the two. I myself have been guilty of this type thing in the past. In my opinion you would be best to get some good CCNA/CCNP books and start reading. When you encounter something in the book that you don't understand then come here and ask. There are many well written books that can help you understand these concepts in context with the other considerations. You will get a much better understanding all around. If you have a hard time reading large volumes of text, there are many excellent videos on these topics including the blending learning solution from IPexpert, however even for these videos you need some concept of the basics. Videos are great, and make an excellent addition to reading. I believe to truly get to CCIE level you should utilize both as well as many many hours labbing and testing. Good Luck, -Marc On Tue, Mar 8, 2011 at 3:35 AM, Narendra <[email protected]> wrote: > yes i have done it > thanks to all > > > > > On Tue, Mar 8, 2011 at 2:49 PM, Narendra <[email protected]> wrote: > > > dear prabha > > i have tried this command its working but my question is this that why am > i > > having to issue this "switchpot trunk encapsulation dot1q" command to > this > > layer 3 switch. > > becoz i have another main layer3 switch it that switch i didnot se this > > command but it working well. > > > > then why am i having to issue this command? any reason > > > > Regards > > Narendra > > > > On Tue, Mar 8, 2011 at 2:46 PM, prabha ganesan <[email protected] > >wrote: > > > >> Hi Narendra, > >> > >> Please try the below configuration. > >> > >> switch(config)#int gi 0/1 > >> switch(config-if)#switchport trunk encapsulation dot1q > >> switch(config-if)#switchport mode trunk > >> switch(config-if)#exit > >> > >> Thanks, > >> Prabha > >> > >> On Tue, Mar 8, 2011 at 2:23 PM, Narendra <[email protected]> > wrote: > >> > >>> Hi guys > >>> > >>> please help me, i m unable to make a port trunk > >>> > >>> Switch(config)#int gi0/1 > >>> Switch(config-if)#switchport mode trunk > >>> Command rejected: An interface whose trunk encapsulation is "Auto" can > >>> not > >>> be configured to "trunk" mode. > >>> > >>> -- > >>> Best Regards, > >>> > >>> Narendra Prasad > >>> _______________________________________________ > >>> For more information regarding industry leading CCIE Lab training, > please > >>> visit www.ipexpert.com > >>> > >> > >> > > > > > > -- > > Best Regards, > > > > Narendra Prasad > > > > > > > -- > Best Regards, > > Narendra Prasad > _______________________________________________ > 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
