[c-nsp] SUP720's memory, looking at options..

Curtis Piehler cpiehler2 at gmail.com
Mon Jul 4 14:44:08 EDT 2016

Honestly with the aging hardware for the 6500s and 7600s I would go with an
ASR1004/6.  The only thing you won't have is port density like on a 6500.
Obviously a 6500 is a switch and a 1004/6 is a router.  If you need the
port density you can go with the ASR1006-X which has EPAs (Less room for
SIPs).  An ASR1006 has the availability of 1+1 RP and 1+1 ESP which means
it is more expensive than a 1004.  If you want a guideline a fully loaded
1006 with 3 SIP10s, 2 ESP20s, 2 RP2s, a couple of 8 Port 1G SPAs, some 1
Port 10G SPAs and a few 4 Port Channelized DS3 cards will run you around

On Mon, Jul 4, 2016 at 1:37 PM, Howard Leadmon <howard at leadmon.net> wrote:

>  FYI, the version I am currently running is 12.2(33)SXJ1, and though I know
> it's not the newest thing going, it for sure has served us well with an
> uptime of 4 years, 51 weeks, 4 days, 19 minutes as of this message.    I
> have little doubt that a reboot may free up some memory, if nothing else
> some more contiguous chunks, but from all I have read here recently, with
> taking full routes this is a short term stop gap measure at best.
>  So what I am trying to figure out, is what is a good path forward that
> will
> last more than a couple months at best.   As mentioned below,  I have
> looked
> at just using the RSP720-3CXL as it will take a lot more RAM reduce running
> on the edge of a memory allocation failure (plus the faster CPU is good for
> BGP).  I have looked at using something like the ASR1004/6 as with a full
> load of RAM it says it will easily do 4 million routes.  Finally I know
> someone that has a GSR12404 that suggested I use it, and though I know it's
> not new platform, I can't for the life of me figure out what routing limits
> it has.   I for sure need 1G and 10G interfaces (not a lot), also need
> 32bit
> ASN support as we already use it at the IX
>  The reboot of the current switch would be easy, but if I need to take the
> time to haul around big switches/routers, and changing the network around,
> I
> figure it just makes good sense to learn what I can to make an informed
> choice as much as possible.
>  Happy 4th to any that celebrate it..
> ---
> Howard Leadmon - howard at leadmon.net
> PBW Communications, LLC
> http://www.pbwcomm.com
> > -----Original Message-----
> > From: Jon Lewis [mailto:jlewis at lewis.org]
> > Sent: Monday, July 4, 2016 9:34 AM
> > To: Howard Leadmon <howard at leadmon.net>
> > Cc: 'cisco-nsp' <cisco-nsp at puck.nether.net>
> > Subject: Re: [c-nsp] SUP720's memory, looking at options..
> >
> > On Mon, 4 Jul 2016, Howard Leadmon wrote:
> >
> > >  I knew with the 720-3BXL's I was running, that eventually the TCAM
> > > would become an issue, but it seemed like I still had a little bit of
> breathing
> > > room left.   Then I saw the chatter here about the RAM on the RP
> > exhausting
> > > before the TCAM, so went peeking at the switch after reading an earlier
> > > thread.     Sure enough, though TCAM was starting to get full, to my
> > > surprise when I looked at memory, it was at 92%, so even closer than
> > > the TCAM by far to exhaustion.
> > >
> > > I know I can't just up the RAM on the board, so that now leads me to
> > > wonder what are reasonable options to resolve this before it becomes a
> > very real
> > > and big problem.   First let me say, compared to many here we are small
> > > guys, we have a limited budget, and our 6509 has served us well for a
> great
> > > many years, I think it's about to pass the 5yr uptime mark.   We have
> 2-3
> > > full feeds as uptime is important, and we also peer at the Equinix IX,
> > > so have a bunch of additional peering sessions.
> >
> > Some of the software versions for the 6500 have had BGP related memory
> > leaks, and if you've got an uptime of 5yrs, that means you're not exactly
> > running recent code, and have had a lot of time for memory to get
> > misplaced.  I no longer have access to a 6500 with full feeds, so I don't
> know if
> > 3 full feeds + an IX should be running you out of memory.  An
> > upgrade/reboot might be worth a try though.  I'd stay in whatever major
> > version you're in though...not try jumping to a much later version that
> might
> > be even more memory hungry.
> >
> > ----------------------------------------------------------------------
> >   Jon Lewis, MCP :)           |  I route
> >                               |  therefore you are _________
> > http://www.lewis.org/~jlewis/pgp for PGP public key_________
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