how to choose proper cisco/juniper router and switch?????

hi,
i am new in networking field.i want to know how can i choose any cisco router or switch according to bandwidth capacity ,cpu performance , vpn , etc...
is there any comparision chart available for that or not???
which router series suitable for traffic to handle like 700 Mbps???
how ISP people they can handle such a huge traffic with which router???



 
vipulranaAsked:
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Istvan KalmarHead of IT Security Division Commented:
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rxhangoCommented:
For the traffic you are looking,  the best router are cisco 7200/7600 and Series and 6500 series switches, ISP always use this type of routers/switches.

For detailed information you can see this links.

http://www.cisco.com/en/US/products/hw/switches/ps708/prod_models_comparison.html

http://www.cisco.com/en/US/products/hw/routers/ps341/index.html

http://www.cisco.com/en/US/products/hw/routers/ps368/index.html

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vipulranaAuthor Commented:
hi
i am looking for more weblinks so i can choose proper router as well as switch for ISP.
i am also looking for JUNIPER routers and switches .
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vipulranaAuthor Commented:
hi
can u tell me more abt cisco 7200 VXR series router .
they have different models like 7204, 7206 with NPE
so which router i need ???
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rxhangoCommented:
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vipulranaAuthor Commented:
thank u so much .
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rxhangoCommented:
u r welcome :)
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vipulranaAuthor Commented:
hi
i expecting more solution but anyway its ok.
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vipulranaAuthor Commented:
i m still looking for more solution.
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