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619 posts

Ultimate Geek
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Topic # 150799 3-Aug-2014 21:09
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Last year I installed a Cisco 3845 at a client's business. I've just bought one for use in my own business. In both cases the WAN link is ethernet fibre and the use is general internet traffic and minor VPN.

I was wondering - what's the next upgrade step? The 3845 is afaik last generation so the subsequent model will still be new and at Cisco prices, probably a lot more than I want to spend....

The 3845 is rated at 500k PPS or 256Mbps.

What is a good next step, preferably with used equipment? Or am I going to have to get new to upgrade from here?

Note: I am asking a specific question about Cisco hardware here. I'm not after a debate. Thanks.




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441 posts

Ultimate Geek
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  Reply # 1101505 4-Aug-2014 10:12
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What's the requirement to upgrade?  Througput? Specific features you require?



619 posts

Ultimate Geek
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  Reply # 1101506 4-Aug-2014 10:15
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hashbrown: What's the requirement to upgrade?  Througput? Specific features you require?


Throughput mainly...

There is no immediate requirement as I'm getting a 100Mbps UFB link, but just wondering what the $ damage will be like when it comes to time to move forward which is likely to be soon. Unless I'm missing something, a 3845 seems to be at the higher end of cheap used Cisco.




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441 posts

Ultimate Geek
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  Reply # 1101812 4-Aug-2014 15:47
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MichaelNZ:
hashbrown: What's the requirement to upgrade?  Througput? Specific features you require?


Throughput mainly...

There is no immediate requirement as I'm getting a 100Mbps UFB link, but just wondering what the $ damage will be like when it comes to time to move forward which is likely to be soon. Unless I'm missing something, a 3845 seems to be at the higher end of cheap used Cisco.


Keep in mind 256Mbps is the small packet (64byte) throughput.  If the 500kpps rate extends to 400byte (average) packets, you'd have 1.6Gbps.

Sorry, not familiar with the second hand market, but the "next model up" would be the 3945.



619 posts

Ultimate Geek
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  Reply # 1101847 4-Aug-2014 16:24
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hashbrown:
MichaelNZ:
hashbrown: What's the requirement to upgrade?  Througput? Specific features you require?


Throughput mainly...

There is no immediate requirement as I'm getting a 100Mbps UFB link, but just wondering what the $ damage will be like when it comes to time to move forward which is likely to be soon. Unless I'm missing something, a 3845 seems to be at the higher end of cheap used Cisco.


Keep in mind 256Mbps is the small packet (64byte) throughput.  If the 500kpps rate extends to 400byte (average) packets, you'd have 1.6Gbps.

Sorry, not familiar with the second hand market, but the "next model up" would be the 3945.
+

Thanks hashbrown. I was just going on worst case scenario. Actually, the 3845 is probably limited to 1Gbps. I am not aware of any 10G modules for it?

Do you or anyone have any real world feedback on the 38xx/39xx series?




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