Does this 2851 can give lots of RAM memory? How about flash?

Answered Question
Jul 20th, 2007
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Hi,


I am not sure on whether the 2851 below comes with 256MB or 1GB of RAM? That

WAAS module has 1GB, but is that considered somehow a complement to RAM memory?

I want to make sure I will order a router robust and which can sustant IOS

versions for year to come.


Please suggest the amount of RAM and flash memory people are ordering

to make sure I buy a scalable router.


1 CISCO2851-SEC/K9 2851 Security Bundle,Adv Security,64F/256D 1

2 CAB-AC Power Cord,110V 1

3 S28NUASK9B-12409T Cisco 2800 ASK9-AISK9 FEAT SET FACTORY UPG FOR BUNDLES 1

4 NME-WAE-502-K9 WAAS Network Module For 2800, 3800 ISR - 1GB RAM, 120GB HDD 1

5 SF-WAAS-4.0-NM-K9 Cisco WAAS 4.0 NM SW image (separate license required) 1

6 WAAS-ENT-NM Cisco WAAS Enterprise License for 1 NME-WAE-502-K9 1

7 WIC-1DSU-T1-V2 Updated 1-Port T1/Fractional T1 DSU/CSU WAN Interface Card 1

8 ROUTER-SDM Device manager for routers 1

9 PWR-2821-51-AC Cisco 2821/51 AC power supply 1

10 MEM2800-256D-INC 256MB DDR DRAM Memory factory default for the Cisco 2800 1

11 MEM2800-64CF-INC 64MB CF default for Cisco 2800 Series 1

12 PWR675-AC-RPS-N1= 675W Redundant Power Supply with 1 connector cable 1

13 CAB-AC Power Cord,110V 1




Correct Answer by royalblues about 10 years 1 week ago

The Sec9 bundle comes with default 256MB RAM and 64MB flash.


However if you want to increase it here are the options avaialble


MEM2851-512D= 512MB DIMM DDR DRAM for the Cisco 2851

MEM2851-256U512D 256 to 512MB DDR DRAM factory upgrade for the Cisco 2851

MEM2851-256U768D 256 to 768MB DDR DRAM factory upgrade for the Cisco 2851

MEM2851-256U1024D 256 to 1024MB DDR DRAM factory upgrade for Cisco 2851


MEM2800-64U128CF 64 to 128 MB CF Factory Upgrade for Cisco 2800 Series

MEM2800-64U256CF 64 to 256 MB CF Factory Upgrade for Cisco 2800 Series


HTH

Narayan

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Correct Answer
royalblues Fri, 07/20/2007 - 21:23
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The Sec9 bundle comes with default 256MB RAM and 64MB flash.


However if you want to increase it here are the options avaialble


MEM2851-512D= 512MB DIMM DDR DRAM for the Cisco 2851

MEM2851-256U512D 256 to 512MB DDR DRAM factory upgrade for the Cisco 2851

MEM2851-256U768D 256 to 768MB DDR DRAM factory upgrade for the Cisco 2851

MEM2851-256U1024D 256 to 1024MB DDR DRAM factory upgrade for Cisco 2851


MEM2800-64U128CF 64 to 128 MB CF Factory Upgrade for Cisco 2800 Series

MEM2800-64U256CF 64 to 256 MB CF Factory Upgrade for Cisco 2800 Series


HTH

Narayan

paolo bevilacqua Sat, 07/21/2007 - 01:04
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Are you buying a 2851 for just 1 T1 link ?

Seems excessive ...


news2010a Mon, 07/23/2007 - 09:10
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Initially T1 MPLS. Later I could put DS-3 there.

paolo bevilacqua Mon, 07/23/2007 - 10:08
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I wouldn'be too worried about T3 performances on a 2851. Attaching here the performance sheet that Narayan has previously posted.


Go over the numbers and use common sense. Remember that certain tables have a 'sales sense' while technical analysis and experience can reveal otherwise.


For example we learn that a 2851 is rated for 220 Kpps, while a 3660 only 120. Still, in the NM-T3/E3 datasheet, the T3 module is "full rate" for the 3660 while only "sub-rate" for the 2800 series that is strangely grouped together, while we know that each model has different performances.


And yes, I've been buying and selling Cisco router for a looong time :)



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