Exactly the detailed answer I was looking for and what I thought it should be. *
* *Skeeve Stevens, CEO - *eintellego Pty Ltd ske...@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 Juniper - Cisco – IBM - Cloud On Thu, Oct 18, 2012 at 11:38 AM, Ben Dale <bd...@comlinx.com.au> wrote: > Hi Skeeve, > > On 18/10/2012, at 10:04 AM, Skeeve Stevens < > skeeve+juniper...@eintellego.net> wrote: > > 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. > > > > The way I read the data sheets is the maximum "supported/tested" in > forwarding table is 700k. > > > 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. > > > > That is correct. The advertised values are referring to supported/tested > FIB, whereas RIB will hold as much as you have memory available (within > reason). > > > 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. > > This is simply not true - I have a customer whose SRX100H is taking one > full view (though data sheet says 8K), and another with an SRX240H with 3 > separate feeds and no issues. > > Where you will come unstuck is if you start dumping each feed into > separate VRFs, then you'll start burning more FIB, and as always the > infamous KRT queueing "feature" can bite you during fail-over (though I > have to say I don't see it on SRX/J all that often). > > Here's what a J6350 with 2GB of memory looks like with 3 feeds (this is an > old snapshot back when the DFZ was ~350k): > > Groups: 2 Peers: 3 Down peers: 0 > Table Tot Paths Act Paths Suppressed History Damp State > Pending > inet.0 1056579 354871 0 0 0 > 0 > Peer AS InPkt OutPkt OutQ Flaps Last > Up/Dwn State|#Active/Received/Accepted/Damped... > x.x.x.x yyyyy 322391 3804 0 6 1:24:31 > 143268/353090/353090/0 0/0/0/0 > x.x.x.x yyyyy 86256 192 0 2 1:24:32 > 2/353091/353091/0 0/0/0/0 > x.x.x.x yyyyy 125597 13456 0 0 4d 4:56:06 > 211601/350398/350398/0 0/0/0/0 > > Only "active" routes are installed in FIB - the rest sit in RIB. Here's > what memory usage looks like for the above: > > > show chassis routing-engine > Routing Engine status: > Temperature 26 degrees C / 78 degrees F > CPU temperature 45 degrees C / 113 degrees F > Total memory 2048 MB Max 1044 MB used ( 51 percent) > Control plane memory 1472 MB Max 618 MB used ( 42 percent) > <--- RIB sits here > Data plane memory 576 MB Max 420 MB used ( 73 percent) > <--- FIB sits here > CPU utilization: > User 0 percent > Real-time threads 9 percent > Kernel 0 percent > Idle 91 percent > Model RE-J6350-3400 > > Also, when using SRX, make sure all your peers are in the same security > zone to handle asymmetry issues that may arise. > > Ben _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp