[j-nsp] How are max routes calculated on an SRX

[Brent Jones]

You're better off putting a router in front of your SRX to handle
taking full feeds.
You -can- do it on the SRX, but as mentioned, it isn't a fast platform
for converging.
If you're looking for on the cheap, MX5s can be had for a song.

On Wed, Oct 17, 2012 at 5:12 PM, Morgan McLean <wrx230 at gmail.com> wrote:
> 700,000 routes in the control plane, as far as I know.
>
> Let me share my experience. SRX650 cluster, max routes somewhere along that
> 700k number you gave. I was taking four feeds, giving me somewhere around
> 1.6M routes. It technically took all of them, but it took 20 minutes to
> failover all of those routes to another interface. The box was way
> overloaded and caused major headaches. It would do things like say next hop
> unavailable etc, this was because the forwarding plane still was pointing
> the route to the downed interface, while the control plane was already
> looking to the backup.
>
> Morgan
>
> On Wed, Oct 17, 2012 at 5:04 PM, Skeeve Stevens <
> skeeve+junipernsp at eintellego.net> wrote:
>
>> Hey all,
>>
>> I am considering using an SRX550 as a border router - its cheap, fast, and
>> flexible, with a great selection of interfaces.
>>
>> Question is.... the specs say it can support a maximum of 700k routes.
>>
>> Now, if what I suspect is right, that is great, but I am getting
>> conflicting information.
>>
>> A full feed at the moment is about 430k routes.  So I am hoping that the
>> SRX550 could take multiple full feeds... lets say - 3-4, and it just
>> installs a single unique copy of the full feed which is way under the 700k
>> threshold.
>>
>> But someone was trying to tell me that it couldn't take two world feeds as
>> together they are 860k routes.. but my gut feeling is that this is wrong as
>> I am not sure what purpose the SRX550 having 700k route capacity would be
>> if it operated that way.
>>
>> Any pointers to documentation that supported how Juniper SRX counted their
>> routes would be great.
>>
>> ...Skeeve
>> *
>>
>> *
>> *Skeeve Stevens, CEO - *eintellego Pty Ltd
>> skeeve at eintellego.net ; www.eintellego.net
>>
>> Phone: 1300 753 383; Cell +61 (0)414 753 383 ; skype://skeeve
>>
>> facebook.com/eintellego ;  <http://twitter.com/networkceoau>
>> linkedin.com/in/skeeve
>>
>> twitter.com/networkceoau ; blog: www.network-ceo.net
>>
>> The Experts Who The Experts Call
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-- 
Brent Jones
brent at brentrjones.com