Catalyst 4507R+E

I currently have 2 3750 switches for the core/distribution layer. I was thinking to replace it with a Catalyst 4507R-E. Questions:
- Will I need to get an extra supervisor to get the redundancy?
- I am currently running hsrp as redundancy between the 2 3750s. If I go with a 4507R-E, will I still need hsrp?
- Looking at the utilization of the current ports, it is around 5%. How would I justify the move to the 4507R-E, other than to support upcoming new applications.

Thanks
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leblancAccountingAsked:
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Don JohnstonInstructorCommented:
- Will I need to get an extra supervisor to get the redundancy?
Yes.
- I am currently running hsrp as redundancy between the 2 3750s. If I go with a 4507R-E, will I still need hsrp?
No.
- Looking at the utilization of the current ports, it is around 5%. How would I justify the move to the 4507R-E, other than to support upcoming new applications.
You can't. :-)  At least based on utilization. If you're running low on ports... you could always add another 3750 to the stack.
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leblancAccountingAuthor Commented:
I was thinking also to use one blade (48 ports) on that 4507 for all of my servers. So that 4500 will be used for the core/distribution collapsed and aggregation for the servers. Is it a good idea? Any thoughts would be greatly appreciated.
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Don JohnstonInstructorCommented:
I was thinking also to use one blade (48 ports) on that 4507 for all of my servers.
What type of card? And what supervisor?
You could do that. But if the card fails, you've lost connectivity to all the servers.

Best to spread the connections out to different cards.
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leblancAccountingAuthor Commented:
Sure. But for performance wise, can this box handle all functionalities: core, distribution, and aggregation for the servers.

I am looking at 2 48-port cards, like the ws-4748-upoe+e. I can spread half of the server to the first card and the other half to the other line card.
Is there any redundancy mechanism that I can implement between the 2 cards. So if one fails the other one will take over (with the assumption that each server has dual connection to the cards. Thanks
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Don JohnstonInstructorCommented:
But for performance wise, can this box handle all functionalities: core, distribution, and aggregation for the servers.
Yes.

Is there any redundancy mechanism that I can implement between the 2 cards. So if one fails the other one will take over
Yes. Depending on how your servers are configured, routing protocols, spanning tree and ether channel (NIC teaming) are all possibilities.
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leblancAccountingAuthor Commented:
Servers are just layer 2 connecting to the LAN ports of the 4500. In other words, there are 2 NICs on the server, each will connect to a port of each line card. How will the 4500 handle redundancy between those LAN ports on those 2 cards where the server is connected to?
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Don JohnstonInstructorCommented:
Either spanning tree or ether channel.
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leblancAccountingAuthor Commented:
Etherchannel... Is it possible to have 2 connections from an access switch to each of the card on the 4500 and implement etherchannel on those 2 ports on the 4500?

4500 - card1/port1 <-->port1 - sw1
            card2/port1 <-->  port2  |

then configure card1/port1 & card2/port1 with etherchannel.
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Don JohnstonInstructorCommented:
Yes.

All the ports on a 4500 are configured (and behave) as a single switch.
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