Questions about Lab Setup for workbooks

For the switches, any people tried using only 2x c3550 + 2x c2950 in the lab?  c3560 is still too expensive.  I can afford at most 4x c3550.  How much I will miss if I only use the c2950 or c3550 in the lab setup?

For the routers, the 3825 is too expensive.  I have three 3640s and four 1721s.  I think the 1721s can replace the 2610XMs in the lab, right?  For the 3825, can I just buy another 3640 to replace it?  How much I will miss if I replace the 3825 with some older models?  Which older models will you suggest to be used as a 3825 replacement?  If a 2610XM or 3640 is OK, I will not consider 3725 or 2811.

 

 

Comments

  • I'm using 4 3550's and for routers 2691 they support 256D and up to 128F.

    I hear the difference between the 3550 and th 3560 is mostly QoS, I'll rent rack time when the time comes.

    Rgds.

  • The 3550's would probably be ok for the most part.  If you can swing it I would at least get the 3550's so that you have 4 layer 3 switches.  You will have a hard time with only 2.  The 3550 will do most of the requirements for the WB2 labs with the exception of private vlans and QoS.  There are other feature differences but those are the ones that come to mind.

    The 3825 is totally unnecessary...  You don't gain anything by using it.  between the 3640 and the 2610XM I would choose a 2611XM [:)].  The 3640 is modular and requires you to buy NM modules for everything.  The only good thing about the 3640 is that it has a faster processor than the 2611.  The 2610XM only has 1 ethernet port which is very limiting.  I like the 3640 as a FR/Terminal server but I like the 2611XM for R1-R6 routers.  I use non-XM 2600's for the BB routers but you could even use 2500's.  Just make sure you have the ports that you need.

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    You will miss a very few things on 3560 vs 3550, but you won't miss
    anything on the routers.  For switches go for 3550s if you can instead
    of 2950, since 2950 is layer 2 only.  For routers go for 2600XMs. If
    you already have 3640s that's fine too.  I'm not 100% sure if 1721
    supports as many features as 2600XM.  Check http://www.cisco.com/go/fn/
    to compare the IOS images between these two platforms.



    HTH,



    Brian McGahan, CCIE #8593 (R&S/SP/Security)

    [email protected]

     

    Internetwork Expert, Inc.

    http://www.InternetworkExpert.com

    Toll Free: 877-224-8987 x 705

    Outside US: 775-826-4344 x 705

    Online Community: http://www.IEOC.com

    CCIE Blog: http://blog.internetworkexpert.com






    sypl wrote:

    For the switches, any people tried using only 2x c3550 + 2x c2950
    in the lab?  c3560 is still too expensive.  I can afford at most 4x
    c3550.  How much I will miss if I only use the c2950 or c3550 in the
    lab setup?

    For the routers, the 3825 is too expensive.  I have three 3640s
    and four 1721s.  I think the 1721s can replace the 2610XMs in the lab,
    right?  For the 3825, can I just buy another 3640 to replace it?  How
    much I will miss if I replace the 3825 with some older models?  Which
    older models will you suggest to be used as a 3825 replacement?  If a
    2610XM or 3640 is OK, I will not consider 3725 or 2811.

     

     







    Internetwork Expert - The Industry Leader in CCIE Preparation

    http://www.internetworkexpert.com



    Subscription information may be found at:

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  • OK, four 3550s are now fixed.

    The problems now are the routers (R1, R2 and R6)  The difference between my current 96D/16F c1721 k9o3sy7 and the 2600XM Adv Ent is a long list.  Some notable missing items on 1721:

    IPv6 OSPFv3
    IPv6 Multicast features
    IPv6 QoS features

    It looks like I need to buy three 2600XMs, or I need to switch to Dynamips and forget my physical routers, right?

    If I buy the XMs now, I should select the 256D/48F models, right?

     [edited by: sypl at 1:48 PM (GMT -8) on Jan 20, 2009]


    Strange!!!  I played with the Cisco Feature Navigator again.  I found that the IOS image c1700-k9o3sy7-mz.124-17a.bin does support all the IPv6 features supported by the 2600XMs.  When I select 1711 as the Platform, it supports IPv6 features.  When I changed the Platform to 1721, a long list of features disappeared.  I think there is a bug in the Cisco database.  1711 is a fixed module model using the same base hardware as 1721.  There is no reason for the differences!

     [edited by: sypl at 3:05 PM (GMT -8) on Jan 20, 2009]

    I used Dynamips to compare the ipv6 command list and found the following commands are missing on 1721:

    Router(config)#ipv6 flow-aggregation
    Router(config)#ipv6 flow-cache
    Router(config)#ipv6 flow-capture
    Router(config)#ipv6 flow-export
    Router(config-if)#ipv6 flow

    Do I need to use the above ipv6 features in the Labs?  Anyone knows?

     

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    IPv6 isn't that much of a focus in the exam in the large scheme of
    things.  You can always move the tasks around to different routers if
    OSPFv3 becomes an issue.  Otherwise just take note of what features you
    can't configure and then rent some rack time to try those out.  If you
    have the ability, real equipment is always better than Dynamips.



    Brian McGahan, CCIE #8593 (R&S/SP/Security)

    [email protected]

     

    Internetwork Expert, Inc.

    http://www.InternetworkExpert.com

    Toll Free: 877-224-8987 x 705

    Outside US: 775-826-4344 x 705

    Online Community: http://www.IEOC.com

    CCIE Blog: http://blog.internetworkexpert.com






    sypl wrote:

    OK, four 3550s are now fixed.

    The problems now are the routers (R1, R2 and R6)  The difference
    between my current 96D/16F c1721 k9o3sy7 and the 2600XM Adv Ent is a
    long list.  Some notable missing items on 1721:

    IPv6 OSPFv3

    IPv6 Multicast features

    IPv6 QoS features

    It looks like I need to buy three 2600XMs, or I need to switch
    to Dynamips and forget my physical routers, right?

    If I buy the XMs now, I should select the 256D/48F models, right?

     







    Internetwork Expert - The Industry Leader in CCIE Preparation

    http://www.internetworkexpert.com



    Subscription information may be found at:

    http://www.ieoc.com/forums/ForumSubscriptions.aspx

  • Looks like my 1721 squad is still good.  No need to buy 3825 or 2610XM right now.  Thank you!

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