From: Muhammad Nasim (muhammad.nasim@gmail.com)
Date: Sat May 24 2008 - 17:10:03 ART
BTW what about JUNIPER EX switches : )
On 24/05/2008, Paul Cosgrove <paul.cosgrove@heanet.ie> wrote:
> I'm not very knowledgeable about the architectures, but it sounds to me
> like 3750/3750Es with 32/65 Gbps stackwise connections actually compare
> favourably with the 24Gbps available to individual 4500E modules.
>
> My understanding is that the 4500 line cards do not perform buffering or
> local switching, which makes high speed connectivity to the SUP
> particularly important for them.
>
> Since the 3750/3750Es do perform local switching, and have faster
> inter-connections (albeit shared) than the max of 24Gbps available to
> 4500 linecards, I would have expected them to give better switching
> performance where the majority of traffic flows are in and out of the
> same individual switches/linecards. Would have thought they also win
> out even when most traffic flows between switches/linecards provided the
> number of switches/linecards is small.
>
> As already mentioned, the 3750/3750Es also provide a certain level of
> resilience, since the failure of one switch does not prevent the others
> functioning. Smaller 4500s cannot use multiple SUPs, so this could be a
> significant benefit of 3750/3750Es in some setups.
>
> A large chassis 4500 may be able to switch faster between linecards,
> each being able to send 24Gbps, so for some installations there are
> benefits, but for smaller installations I don't see it.
>
> Paul.
>
>
> Jonathan Greenwood II wrote:
>> Not only that the X46 line cards are now processing at 24Gbps vs 6Gbps
>> with
>> the X45 line cards. Thats with the 4500-E and Sup6.
>>
>> On Sat, May 24, 2008 at 9:48 AM, Jonathan Greenwood II <gwood83@gmail.com>
>> wrote:
>>
>>
>>> Not only that the X46 line cards are now processing at 24Gbps vs 6Gbps
>>> with
>>> the X45 line cards. Thats with the 4500-E and Sup6.
>>>
>>>
>>> On Sat, May 24, 2008 at 7:39 AM, Bill Eyer <beyer@optonline.net> wrote:
>>>
>>>
>>>> Taj,
>>>>
>>>> The backplane of a 4500 is far faster than a stack of 3750 switches, so
>>>> if
>>>> you have high performance video or other data requirements the 4500 is a
>>>> better solution. The drawback is cost.
>>>>
>>>> Bill
>>>>
>>>>
>>>> Tajamal Shah wrote:
>>>>
>>>>
>>>>> Chaps, need your help, I can't decide.....
>>>>>
>>>>> Is there any advantage in using 4500 switch over stack of 3750 switches
>>>>> at
>>>>> the core of a network?
>>>>>
>>>>> appreciate your input.
>>>>>
>>>>> Thanks
>>>>>
>>>>> Tajamal
>>>>> -----Original Message-----
>>>>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>>>>> Salau, Yemi
>>>>> Sent: 20 May 2008 11:38
>>>>> To: Joseph Brunner; theKonqueror; Cisco certification
>>>>> Subject: RE: CCIE# 20863
>>>>>
>>>>>
>>>>> Unbelievable for me, from CCNA to CCIE in 9months! That's really
>>>>> impressive/awesome. (I assume you're referring to Sept. 2007)
>>>>>
>>>>> Well done mate, and keep up the good works. Yea, I reckoned with
>>>>> Joseph,
>>>>> ditch the CCNA, but RHCE still rocks in Linux world though....can't
>>>>> think of any greater cert in that line, LPI or Linux+? No chance ...
>>>>> keep RHCE, then ofcourse keep CCIE.
>>>>>
>>>>> Enjoy!
>>>>>
>>>>> Many Thanks
>>>>> Yemi Salau
>>>>>
>>>>> -----Original Message-----
>>>>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>>>>> Joseph Brunner
>>>>> Sent: Tuesday, May 20, 2008 11:24 AM
>>>>> To: 'theKonqueror'; 'Cisco certification'
>>>>> Subject: RE: CCIE# 20863
>>>>>
>>>>> Nice...
>>>>> Drop the two other lame certs from your title, Anakin!
>>>>>
>>>>> -----Original Message-----
>>>>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>>>>> theKonqueror
>>>>> Sent: Tuesday, May 20, 2008 5:17 AM
>>>>> To: Cisco certification
>>>>> Subject: CCIE# 20863
>>>>>
>>>>> Hi everyone,
>>>>>
>>>>> In my second attempt at Bangalore yesterday, I passed R&S lab. I'd like
>>>>> to
>>>>> thank my best gal Swapnita, Brians from IE, Scott Morris, and all the
>>>>> great
>>>>> people at groupstudy for their support.
>>>>>
>>>>> I started my journey back in September when some of my work involved
>>>>> routing
>>>>> for SaaS applications, and I enrolled myself in a CCNA class. As the
>>>>> instructors answered most of my questions with "It's not part of the
>>>>> CCNA
>>>>> exam", I decided to go for CCIE. This was the first time I ever touched
>>>>> a
>>>>> Cisco router. I passed the written exam in November and after that,
>>>>> used
>>>>> dynamips for most of the lab preparation.
>>>>>
>>>>> I came so close to passing in my first attempt, but got a lousy 78%
>>>>> instead
>>>>> of a CCIE number. After coming back home, I scheduled another lab after
>>>>> 30
>>>>> days and worked on my weaknesses. I finished my lab yesterday 30
>>>>> minutes
>>>>> after the lunch and had 4 hours to verify everything. Got my result in
>>>>> 4
>>>>> hours after leaving the lab.
>>>>>
>>>>> For all lab candicates, I'd like to add a note, IE mock labs and CCIE
>>>>> Assesor are priceless. Go for them before going to real lab. Also,
>>>>> there
>>>>> is
>>>>> no substitute to real knowledge in the lab. You need to know your stuff
>>>>> well
>>>>> or else it's just $1400 lunch. And it isn't that great anyways ;)
>>>>>
>>>>> Time for me to get back to SaaS and Unix. Maybe in a few months I can
>>>>> party
>>>>> when I'm old enough to drink :P
>>>>>
>>>>>
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>>
>>
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>
>
> _______________________________________________________________________
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>
>
>
-- Muhammad Nasim Network Engineer Saudi Arabia
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