11-27-2012 08:33 AM - edited 03-07-2019 10:16 AM
Greetings:
I currently have a Cisco 3945 router deployed and I am reaching the CPU's max during peak usage. The 3945 supports ~500Mbps Fast/CEF Switching and I need something at least double that capacity. I need the ability to have at least 8 RJ-45 10/100/1000 connections. I also need the ability to NAT. Besides this, my configuration is very basic. Can anyone make an upgrade recommendation?
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11-28-2012 04:05 PM
Ok. Makes sense now.
Without any encryption on the links, ASR 1002 with RP 1 and ESP 5 is your minimum.
11-27-2012 02:24 PM
What bandwidth are you expecting? Per-interface?
If you intend to double the bandwidth of a 3945, your next bet would be an ASR 1002, RP1, ESP5.
11-27-2012 04:07 PM
Hi leolaohoo. Thanks for the reply. I am currently pushing very close to 500Mbps during peak times (120Mbps on two interfaces and 240Mbps on another), and I expect that number to increase over the next few months.
Looks like the router you recommended supports ~4,500Mbps?
I am assuming it has the capability to add RJ-45 10/100/1000 cards?
Thanks!
11-27-2012 04:24 PM
Looks like the router you recommended supports ~4,500Mbps?
You want to support 500 Mbps in 4 interfaces?
11-27-2012 09:06 PM
500Mbps total on 4 interfaces, but I need 8 total interfaces.
The ASR-1002, RP1, ESP5 supposedly can handle over four thousand Mbps?
11-27-2012 09:17 PM
The ASR-1002, RP1, ESP5 supposedly can handle over four thousand Mbps?
The figure is quoted in half duplex and without any encryption.
Ok, so you need 8 GigabitEthernet interfaces, the question is what is the TOTAL WAN bandwidth do you need now/later?
This figure decides whether you should get RP1 or RP2 and which ESP model you will need.
11-28-2012 05:23 AM
Total WAN bandwidth necessary = 250Mbps
11-28-2012 01:40 PM
Total WAN bandwidth necessary = 250Mbps
This statement doesn't correlate to this (below):
The 3945 supports ~500Mbps Fast/CEF Switching and I need something at least double that capacity.
So what is the total bandwidth you will require now and in the future?
If it's only 250 Mbps, then stick with the 3945.
11-28-2012 03:20 PM
Thanks for the replay leolaohoo. Maybe this will help clarify:
g0/0 = 110Mbps input + 10Mbps output --> internet
g0/1 = 10Mbps input + 110Mbps output --> users
g0/2 = 10Mbps input + 10Mbps output --> users
g0/1/0 = 120Mbps input + 120Mbps output --> WCCP caching server
This puts me at 500Mbps, correct?
11-28-2012 04:05 PM
Ok. Makes sense now.
Without any encryption on the links, ASR 1002 with RP 1 and ESP 5 is your minimum.
11-28-2012 04:37 PM
Great, that's what I was looking at as well. Thank you!
12-04-2012 06:09 AM
Hi leolaohoo - one more quick question. Can you help me determine what I need to achieve 8 GigabitEthernet interfaces with the router you recommended? I'm having some difficulty sorting out what cards I would need. Thanks for all your help.
12-04-2012 05:49 PM
Depends on the amount of spare slots, you can choose from either two SPA-4X1FE-TX-V2 or one SPA-8X1FE-TX-V2.
Cisco 4- and 8-Port 10BASE-T/100BASE-TX Fast Ethernet Shared Port Adapter
http://www.cisco.com/en/US/prod/collateral/modules/ps6267/product_data_sheet0900aecd804dc638.html
If you have available funds, two of the 4-port SPA would be good so that if you have one failure, the other half works.
12-05-2012 05:23 AM
Thanks again!
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