| reply to aryoba
Re: [CCNA] switchport mode access : Command Question : Why use i I'm using Pearsons press Cisco Virtualizer and they don't emphasize the switchport mode access command all that much and the Cisco ICEND2 book does not as well when they all show configuration examples. Why is this ???? |
|
 tubbynetreminds me of the danse russePremium,MVM
join:2008-01-16
Chandler, AZ
kudos:1 | i dunno. brevity?
it is important to remember that your ccna is an "entry level" certification. while it will give you the knowledge with the cli (and presumably now the sdm), there is still a *lot* that isn't covered. my biggest complaint about the ccna is that it doesn't give enough "best practice" deployment information when you configure a device.
additionally - think of it like this:
what have you covered already in your ccna studies (as it pertains to switching)? i assume spanning-tree and vtp. both of these things can go extremely pear-shaped if someone connects a switch to your network and they negotiate trunks using bpdu's. how would you like to see a huge spanning-tree loop or maybe all of your vlan configuration information overwritten because you didn't set up the proper end-user vlan assignments on your closet switches. additionally, if i negotiate a trunk (and my pc can handle trunk frames) all of your vlan information can be sniffed and collected.
as a rule you *always* set the port type information on your switches and if the port serves and end user or is being unused, you set it to access mode (preferably on a non-existant vlan if its not in use). its just something you do according to best practices. have i seen networks that function with no port types being defined? sure. i've worked on networks that switches were just pulled out of the box and patched in. does that mean its right to do it that way? no.
q.
--
"...if I in my north room dance naked, grotesquely before my mirror waving my shirt round my head and singing softly to myself..." |
|
 rolandeCertifiablePremium,Mod
join:2002-05-24
Prosper, TX
 ·AT&T U-Verse
Host:
Linksys
AT&T U-verse
| said by tubbynet:my biggest complaint about the ccna is that it doesn't give enough "best practice" deployment information when you configure a device. Unfortunately this is true of pretty much all the certifications. The certifications are more about understanding the technology and what it does and not about best practice network design and ways in which to implement specific platforms in specific scenarios. The exam scenarios are primarily developed from an academic standpoint.
--
Scott, CCIE #14618 Routing & Switching
Too bad those that know it all can't do it all.
»www.thewaystation.com/techref/tech.shtml
»blog.thewaystation.com/ |
|
tubbynetreminds me of the danse russePremium,MVM
join:2008-01-16
Chandler, AZ
kudos:1 | said by rolande:Unfortunately this is true of pretty much all the certifications. The certifications are more about understanding the technology and what it does and not about best practice network design and ways in which to implement specific platforms in specific scenarios and i understand this. however, most people work on their professional and expert level certs while working in industry. the not only have the academic knowledge that the certs provide, but they have an understanding of "real life" as well.
the ccna is more of a "marketability" cert, often the entry level that gets you your first job as a network admin. as such, i feel that you should hit the ground running with an idea of what *should* go on in the network and how poor choices in initial deployment can lead to bad things down the road - hence the original topic of this post.
q.
--
"...if I in my north room dance naked, grotesquely before my mirror waving my shirt round my head and singing softly to myself..." |
|
