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Home > Archive > CCNA > October 2001 > Real world wan question?
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Real world wan question?
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| HOOLIGAN 2001-10-23, 9:46 am |
| comming up to 9 months and im still no where near ready to taking this exam, How do you pass CCNA while holding down a job and keeping the missus and two kids happy,(not to mention the house that needs constant work).
Seriously though, is SDLC and HDLC implemented these days? or is there a workaround, ie take an IBM mainframe to router , is SDLC still used or is there a workaround (say encapsulated inside another protocol). Any url's or resorses on this subject would be greatly appreciated.
Cheers
Hooligan A+ | |
| depamo 2001-10-23, 2:12 pm |
| You can extend an SNA environment with DLSw+ or a layer 2 tunnel through an IP network. Since SNA is not a layer 3 protocol, it in itself cannot be routed but it can be extended and bridged. | |
| Silkysmoothe1 2001-10-24, 8:04 pm |
| quote:
Originally posted by HOOLIGAN
comming up to 9 months and im still no where near ready to taking this exam, How do you pass CCNA while holding down a job and keeping the missus and two kids happy,(not to mention the house that needs constant work).
Seriously though, is SDLC and HDLC implemented these days? or is there a workaround, ie take an IBM mainframe to router , is SDLC still used or is there a workaround (say encapsulated inside another protocol). Any url's or resorses on this subject would be greatly appreciated.
Cheers
Hooligan A+
One day it will dawn on you, and you will think to yourself, if I'm not ready now,I'll never be ready and then you will take and pass the test.
I think I told you once that, if you needed any help to use this email system,, and give me a shou! I think your time has come, and the cards are in your favor,,, time is of the essence and the market is slowly turning again,,,so be prepared and ready to take that step. I hope to hear your good news (soon).
,,,,silky,,, | |
| depamo 2001-10-24, 9:42 pm |
| You are probably closer then you can imagine. Get over that last hump and kill that bad boy. Let us in on the good news when you strike it down!! | |
| Retired-Mod 2001-10-25, 3:13 am |
| HDLC is commonly used on a point to point T1 these days.
Retired | |
| MadChef 2001-10-25, 4:27 am |
| quote:
Originally posted by HOOLIGAN
Seriously though, is SDLC and HDLC implemented these days? or is there a workaround, ie take an IBM mainframe to router , is SDLC still used or is there a workaround (say encapsulated inside another protocol). Any url's or resorses on this subject would be greatly appreciated.
SDLC is still very common in IBM environments, but mostly for controllers and other devices. The mainframe end is more likely a channel attached with a 7500 or LAN attached, mostly using token. If your controllers are serially attached, you're still stuck with using SDLC at least on that end. Using PU 2.0 and 2.1 devices you can use DLSw to move SNA across a network so you can transparently move SDLC attached controller traffic to LAN attached hosts. PU 1.0 is limited to STUN so you'd need SDLC on both ends.
MadChef | |
| HOOLIGAN 2001-10-25, 11:03 am |
| Cheers chaps for the answers and especialy the encouragement. It was def needed.
Thanx again
Hooligan |
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