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Most resilient network design

Posted on 2009-07-06
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Last Modified: 2013-11-13
Hi,

I have been tasked with designing a new network for a company, they want me to come up with 3 designs, Gold , Silver and Bronze with the following criteria.

Gold - Best of the best, fully resilient, use Cisco kit, money no object - However the are unlikely to choose this one

Silver - Still has a fair level of resiliency and using Cisco kit but taking into account there are budget contraints - They will probably choose this one

Bronze - Just get something in that is newer that what they have, probably not using Cisco kit or if they still want Cisco, maybe source it from Ebay or whatever.

The company is fairly basic with no need for VoIP or video, it just needs to up all the time due to a 24/7 operation with a real-time ERP system. There are 2 sites conencted by a 1Gb wireless link and PC's, wireless AP's and wireless barcode readers dotted around both sites.

I was thinking that I would put in dual switches, routers and firewalls using HSRP or VRRP but just how far do I go. I mean, do I dual NIC all the PC's and servers, team the NIC's and then patch them to both switches in the event of a switch failure, or is that what you might do in a medical or banking environment...which they are not?

Any suggestions or comments on this would be most welcome.

See attached for what I am thinking of doing

Thanks,

Ally
New-Network---Gold-Standard--EE-.jpg
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Question by:ally0000
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5 Comments
 
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Expert Comment

by:bsohn417
ID: 24784827
Only thing i see the Connections from SITE A - Site being issue using wireless. you should have physical link primary and VPN over internet as back up.
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Author Comment

by:ally0000
ID: 24784930
The 2 wireless links are configured for failover with EIGRP and this works great so not really looking to change that. What I'm really looking for is just how granular to go with the resilience. Do I go as far as two NIC's in a team, with each NIC's going to each switch?

Thanks
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bsohn417 earned 500 total points
ID: 24784962
Thats good for servers, but i don't think its needed for desktops.

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Author Comment

by:ally0000
ID: 24785224
To be honest if these guys want maximum availability then each workstation in the production factory is pretty valuable in terms of the data it sends back to the ERP system so that's what I'm thinking
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Expert Comment

by:bsohn417
ID: 24786207
hey if there is extra money, than go for it. But be carefull, some times dual nic creates loops.
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