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John Lockie

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John Lockie last won the day on May 27 2010

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About John Lockie

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    Cisco R&S Experts

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  1. John Lockie

    640-864 are the new books published?

    Check out Safari online: my.safaribooksonline.com I got the Official Certification Guide the day it was published. I used some tokens to download the PDF's.... Any Cisco student should invest in Safari's online service. It's worth it 100x over.
  2. John Lockie

    Ccnp switch

    Meh, sunfish made the point. Some questions require you to use the correct show command to gather data... And if Cisco says to verify certain VLANs are pruned....you tell me how many ways that can be done?
  3. John Lockie

    Ccnp switch

    Thanks. I really doubt they use running configs in the script. I have always believed they log your console, and verify that you used the commands to accomplish the task. This is the most precise method as apposed to printing configs and parsing against the tasks. By logging the console they can in fact verify whether or not you know how to verify your own configurations using "show" commands, and other commands like "ping" which are not reflected in configs I treat this with a bit of mythology though, we will never really know. My rule of thumb is, if it's allowed it will work, if not it will say "not implemented"...they basically block you from using commands they don't want you to use - making your life a LOT easier in my opinion. Contextual help is also allowed, and you will note in some simulations tab completion does not always work, because they disable it where they don't want you using it. Generally, it works on all enabled commands .
  4. John Lockie

    Ccnp switch

    Oh I am sorry, it's just wrong to memorize... I forgot about that loop hole. NOT You can read this as an attack, or you can read it as a friend being brutally honest with you. Reading dumps is cheating, period. I don't care if you have your CCIE and are taking SWITCH for the fun of it. If you read a dump, you cheated. Do yourself a favor, and don't do it on future tests. I am not judging you, we all make or have made mistakes. I suggest you look inside yourself and evaluate whether you will continue to hold the position you hold toward dumps. Rules are rules my friend. Anyone here care to disagree with me? Cause I would gladly find the exit door if this community wants to argue otherwise.
  5. John Lockie

    Ccnp switch

    I do think failing to ping could cost you point(s). I think this because they want to know that you care to verify you work. Verification is a huge aspect to SWITCH, and while I have no way to prove that this is the case I would say it's safe to assume this. The same goes for issuing show commands. Also, to the one that scored 900+ after "reading the dumps" you need to man up and admit that you cheated. Next test you take - do not even look at them. They are the test questions, what test permits you to see the questions in advance? Plus, this is against the rules according to Cisco - and after all it's their certification so why do you want to steal a certification from them by breaking their own rules? Additionally, for a lab that has a requirement of reachability why would you not ping?
  6. John Lockie

    Ccnp switch

    @unworthyservant: your words are truly encouraging. thanks. i feel the same. @ZigAA: keep your head up. and yeah, don't post questions. i can relate to your frustration - it took me three honest attempts to pass take a look at my notes here which i took going in to third attempt http://lockienotlucky.wordpress.com/category/np-switch/ also take a look at my PPDIOO planning and implementing notes here: http://www.scribd.com/doc/47296041/CCNP-SWITCH-Study-Guide-for-Implementation-and-Verification-Topics i think that link for PPDIOO stuff will be very helpful for you to cut through the study process to the meat and prepare for those questions. i good engineer should only need glance at these notes to refresh. now, as far as the native VLAN mismatch - did you vapor lock?
  7. John Lockie

    Ccnp switch

    For the sake of brevity because those are not the only options I say "switchport trunk vlan"....any VLAN command actually, even "switchport trunk native vlan" etc. etc.
  8. John Lockie

    Ccnp switch

    ...and regarding your R6 thing. My philosophy is. "when in doubt, answer default....especially if default value is one of your available answers"
  9. John Lockie

    Ccnp switch

    You don't always need to use VTP pruning to prune a VLAN. You can manually prune with the "switchport trunk vlan" command.
  10. John Lockie

    Spanning Tree Question

    Is it me, or was this question originally asking which switch would be the root bridge, not which switch would have the designated port. If it is asking for designated port it is the switch with the lowest MAC between 3 & 4. If it is asking for the root bridge, then it's switch 1. And in that case there is no issue between access and distribution layers.
  11. John Lockie

    ip source guard question

    This may have to do with control plane vs. data plane, and where IP Source Guard sits in relation. It could explain why you see L3 broadcasts, but not L2 "connectivity". Control Plane builds the ARP and routing tables, etc. The data plane handles L2 encapsulation. You hear the word "ASIC" a lot, and that is basically the data plane... IP Source Guard, while it is a L3 security feature is probably truly sitting at L2...? So if a host knows its destination IP but not destination MAC it can do an ARP, but when it actually tries to encapsulate traffic using the destination MAC it gets dropped by the ASIC....? This is an interesting discussion....it might help fill the gap we have about multi-layer switching logic.
  12. John Lockie

    ip source guard question

    You could not ping, but you saw ARP broadcast being forwarded from an untrusted port that had no DHCP binding? This is interesting.... Also - good work.
  13. John Lockie

    aging of 0

    When port-security violation occurs the port is placed in error disabled state. Aging just means that the mac addresses that were put in to the table (statically or via sticky dynamically) never age out. Assuming max is set to "1" on port-security and you plug one device in....and age is set to 0, when you unplug that device and put a new one in it will error disable. This is because the default with port-security is "shutdown" mode. Therefore, even when you plug the allowed device back in it will not work. There are two other modes with port-security - protect, and restrict. Look them up.
  14. John Lockie

    Adding new switch to a network

    Yes, VTP mode client is for preventing the configuration of new VLANs on the switch only. This is why just making a switch "VTP client mode" is not acceptable. You should always place the switch in transparent mode to zero out the config rev #. As to why Cisco does this I cannot say 100%. But consider that you might configure VLANs on a switch that is in server mode, and then set it to client mode...how should it behave? Should it not update the rest of the network? Or should it just accept the servers VLANs and erase all the VLANs you just created? When you think of it this way it makes sense. To reitirate - VTP client mode is to secure a switch from having an administrator create new VLANs and then propagate them. It's a security feature....
  15. John Lockie

    Spanning Tree Question

    Scales, take a closer look. Who taught you this? If anything it's the other way around. Your STP root bridges will be in the higher layer, not the access layer =/ Don't read layer 3 information in to a layer 2 diagram. Just give the diagram the benefit of the doubt that WYSIWYG (what you see is what you get). In this diagram they give you plainly two switches with non-default priority. Forget MACs, this topology has a clear winner for STP root bridge and that is Switch 1.