From: Marc La Porte (marc.a.laporte@gmail.com)
Date: Fri Jun 20 2008 - 05:02:49 ART
Hash,
I am running Sup720-3B.
I am running Layer 2 to the access switches; only one 10GE is in use at any
time (HSRP)
Everything is running DCF
At the moment, the design prohibits me from running Layer 3 to the access
layer, so I am not able to load balance in that way
I can only insert one 10GE blade per access switch, so I could etherchannel
this to 40 Gbps (can the backplane handle this?), but then I still have a
problem because I could do 40 Gbps between the d-core and the core too,
while there is much more oversubscription there.
Marc
On Fri, Jun 20, 2008 at 9:39 AM, <sheherezada@gmail.com> wrote:
> ---------- Forwarded message ----------
> From: Hash Aminu <hashng@gmail.com>
> Date: Thu, Jun 19, 2008 at 11:52 PM
> Subject: Re: Next step up from 6509-E/SUP720??
> To: sheherezada@gmail.com
>
>
> Marc,
>
> I will ask what kind of Sup720 (3B, 3BXL)you are running??? From your
> description, you seem to be running Layer 3 to the access which means
> that you will have the OSPF Load balancing across the Uplinks which
> means you have 20Gbps Uplinks; If not I would recommend considering
> that, Secondly you watch the interfaces utilization and Processor
> (which I will believe is still moderate). If you require more
> Bandwidth on the Uplinks, Consider Etherchannel (With the hope you
> still have free 10GE Ports or slot to insert another module). You may
> as well add more DFCs on the Cards to Increase the performance and
> take advantage of the distributed architecture of Sup720. Having VSS
> will eliminate complexities like Spanning tree blocked ports and HRSP,
> but will require you to change your Supervisor engines...
>
> hth
>
>
> hash
>
> On Thu, Jun 19, 2008 at 4:24 PM, <sheherezada@gmail.com> wrote:
> >
> > That would require Sup720-3C. Most probably they use 3B. Anyway, you
> > just get rid of the STP blocking ports, but I am not sure if doubling
> > the bandwidth is a radical upgrade.
> >
> > Mihai
> >
> > On Thu, Jun 19, 2008 at 10:03 AM, KRATTIGER Lukas
> > <Lukas.KRATTIGER@nextiraone.ch> wrote:
> > > Hi Marc
> > > What do you think about VSS ?
> > > http://www.cisco.com/en/US/products/ps9336/index.html
> > >
> > > Regards
> > > -Lukas
> > >
> > > -----Urspr|ngliche Nachricht-----
> > > Von: nobody@groupstudy.com [mailto:nobody@groupstudy.com] Im Auftrag
> von Marc La Porte
> > > Gesendet: Donnerstag, 19. Juni 2008 08:58
> > > An: Cisco certification
> > > Betreff: Next step up from 6509-E/SUP720??
> > >
> > > Hi experts,
> > >
> > > We have a Data Center environment with all 6509-E/SUP720 on
> access/distribution/core layer, all with 10GE uplinks, and 1GE on the access
> towards to hosts. We have 18 OSPF areas, each with 2 d-core switches and 21
> access switches. Each access switch holds a maximum of 240 ports.
> > >
> > > This means:
> > > 240 * 21 = 5,040 GE of access ports on a 10GE to the distribution 5040
> * 18 = 90,720 GE of distribution ports on a 10GE to the core
> > >
> > > Obviously not all OSPF areas have 21 switches, and not all have 240
> ports, and not all are fully connected, and not all are running 1 Gbps, and
> not all are fully loaded, but you get my drift...
> > > The fact that no customers are complaining and that none of the uplinks
> are above 70% should say enough...
> > >
> > > Yet, I am looking into how to expand the current core environment
> (basically
> > > 2 6509-E/SUP720 with 6 X6704-10GE blades) to something that is ready
> for the future.
> > >
> > > Now, my question is: is the next step up from a 6509-E/SUP720 really
> only the Nexus7000 or are there other opions as well?
> > >
> > > Thanks.
> > > Marc
> > >
> > >
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