[c-nsp] Adequate RAM in 7206VXR/NPE-G1?

[David Coulson]

Running full tables in 256Mb is close to impossible - I'd not recommend 
it :-) I tried to load a single full table (230ish-thousand) routes the 
other day into 256Mb and it didn't work too well. You might be able to 
save a little memory by disabling soft reloads, but that's not really a 
substitute for anything.

Up it to 512Mb. 3Mb is crazy, particularly if your memory is really 
fragmented.

Of course, the question is, if you have a single full table, why even 
have it? Keep the carrier providing you with a full table and filter it 
out to a default...

Rick Kunkel wrote:
> Hello all,
>
> We've got a 7206VXR/NPE-G1.  In it, we have the following modules:
>
> PA-T3
> PA-A3-T3
>
> The PA-T3 is totally unused.  Nothing plugged in.
>
> The PA-A3-T3 has an ATM DS-3 from Verizon to aggregate our DSL customers.
>
> On the NPE-G1, one GigE port is taken by an 802.1q trunk to a bunch of
> colo customers.
>
> Another GigE port is taken by a 100 Mbps Ethernet connection ot the
> Internet.
>
> We get full routes from the upstream connected to the above port.
>
> My question is about RAM.  If I'm reading the show ver correctly, we've 
> got 256M of RAM.  I was recently told that this is like the BARE minimum 
> for a full routing table.  And considering other factors of its use, 
> probably rather lacking.
>
> Can anyone verify or refute this?
>
> Here's a show ver:
>
> -----------
> Cisco Internetwork Operating System Software 
> IOS (tm) 7200 Software (C7200-IS-M), Version 12.2(4)BW1, EARLY DEPLOYMENT 
> RELEASE SOFTWARE (fc1)
> TAC Support: http://www.cisco.com/tac
> Copyright (c) 1986-2002 by cisco Systems, Inc.
> Compiled Tue 26-Nov-02 14:57 by kellythw
> Image text-base: 0x60008A00, data-base: 0x615D4000
>
> ROM: System Bootstrap, Version 12.2(8r)B, RELEASE SOFTWARE (fc1)
> BOOTLDR: 7200 Software (C7200-KBOOT-M), Version 12.2(4)BW, EARLY 
> DEPLOYMENT RELEASE SOFTWARE (fc1)
>
> cp7206 uptime is 28 weeks, 4 hours, 14 minutes
> System returned to ROM by power-on
> System restarted at 11:22:04 PDT Fri Sep 29 2006
> System image file is "disk2:c7200-is-mz.122-4.BW1.bin"
>
> cisco 7206VXR (NPE-G1) processor (revision A) with 245760K/16384K bytes of 
> memory.
> Processor board ID 29354705
> SB-1 CPU at 700Mhz, Implementation 1, Rev 0.2, 512KB L2 Cache
> 6 slot VXR midplane, Version 2.7
>
> Last reset from power-on
> Bridging software.
> X.25 software, Version 3.0.0.
> 3 Gigabit Ethernet/IEEE 802.3 interface(s)
> 2 Serial network interface(s)
> 1 ATM network interface(s)
> 509K bytes of non-volatile configuration memory.
>
> 62976K bytes of ATA PCMCIA card at slot 2 (Sector size 512 bytes).
> 16384K bytes of Flash internal SIMM (Sector size 256K).
> Configuration register is 0x2102
> -----------
>
>
>
> Here's a show mem sum:
> -----------
>                 Head    Total(b)     Used(b)     Free(b)   Lowest(b)  
> Largest(b)
> Processor   62502CA0   212849504   208938920     3910584     3294120     
> 1029992
>       I/O    F000000    16777216     4744900    12032316    11853080    
> 11608220
> -----------
>
>
> The 3MB free looks a little suspicious, but on the other hand, it hasn't 
> hit zero before.
>
> Any input is appreaciated....
>
> Thanks,
>
> Rick Kunkel
>
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>   


David

-- 
David J. Coulson
email: david at davidcoulson.net
web: http://www.davidcoulson.net/
phone: (216) 920-3099 / (216) 258-4942