Mailing List Archive: Cisco: NSP

Relationship between RAM and routes

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emagutu at gmail

Nov 4, 2009, 10:12 PM

Post #1 of 3 (111 views)
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Relationship between RAM and routes

Hi,
What is the relationship between RAM and routes? I want to implement 1000
static routes in a cisco 7206vxr (NPE -G1) and needed to find out what
effect it would have on my router. Should I do any upgrades? it has
229376K/32768K bytes of memory 509K of NVRAM

--
Regards,
Eric Magutu
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lukasz at bromirski

Nov 5, 2009, 2:24 AM

Post #2 of 3 (95 views)
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Re: Relationship between RAM and routes [In reply to]

On 2009-11-05 07:12, Eric Magutu wrote:
> Hi,
> What is the relationship between RAM and routes? I want to implement 1000
> static routes in a cisco 7206vxr (NPE -G1) and needed to find out what
> effect it would have on my router. Should I do any upgrades? it has
> 229376K/32768K bytes of memory 509K of NVRAM

Neglectable. For a lot of static routes you may consider doing
'service compress-config', but for 1k you should be safe.

--
"Everything will be okay in the end. | Łukasz Bromirski
If it's not okay, it's not the end. | http://lukasz.bromirski.net
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mtinka at globaltransit

Nov 6, 2009, 11:34 PM

Post #3 of 3 (75 views)
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Re: Relationship between RAM and routes [In reply to]

On Thursday 05 November 2009 02:12:56 pm Eric Magutu wrote:

> Hi,
> What is the relationship between RAM and routes?

Well, the more routing entries you have, the more memory you
need to hold them.

This is truer for dynamic routing protocols than the
opposite, as routing entries learned dynamically carry
additional attributes along with them and all sorts of
goodies that need to make friends with RAM + CPU :-).

That said...

> I want
> to implement 1000 static routes in a cisco 7206vxr (NPE
> -G1) and needed to find out what effect it would have on
> my router. Should I do any upgrades? it has
> 229376K/32768K bytes of memory 509K of NVRAM

1,000 static routing entries should not be a problem for the
platform to handle. I'd be more worried about your energy
levels and the amount of NVRAM at your disposal (although
there are other options you can consider to manage a larger
active configuration).

Cheers,

Mark.

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