cisco 6509

My company would like to make a decision on upgrading the Catalyst 6509 or get a Nexus line switch.
I need to do a performance and general assessment of a 6509. Is there any guideline on how to go by accomplishing this? Thanks
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rauenpcConnect With a Mentor Commented:
You can go off the spec sheets for this. The main thing when it comes to pure performance of the two, is the back-plane throughput per chassis and per slot, as well as the port density at different speeds.
The Nexus line is far superior when it comes to port density and throughput versus the 6509, but you will pay dearly for that superiority. If you need it, the money is well justified.
When you look at these stats, make sure to note the per-slot bandwidth. It's great that you could get 16 10G ports on the 6500 in a single slot, but with a max bandwidth per slot of 80G, you're at a 2:1 over-subscription ratio. That may be acceptable, or it might not.
If the purchase decision is based purely on performance, port density, and feature needs, then specs are all you need, If the financial end of things is also a factor, there may be alternate options to the 6509 that will save money. I've found that for a number of customers that it was more cost effective to get a pair of 6504E's coupled with pairs of Nexus 3000's. The upfront costs weren't necessarily that huge, but the Smartnet costs over time were far less than a couple of larger chassis.
pergrConnect With a Mentor Commented:
The Catalyst was launched in 1999, only 14 years ago...
Do you have other IT equipment from the previous century?

If you have to spend more money on switching, then I assume you need some features or capacity that the c6500 can not fulfil. It would be useful to know what you need, in order to support a recommendation.
We have found that most customers replace the c6500 with Juniper EX - usually with Virtual Chassis functionality.
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rauenpcConnect With a Mentor Commented:
Saying that the Catalyst is 14 years old is no different than saying the Ford Taurus is an old car. Yes, the original Catalyst chassis manufactured 14 years ago are old. A 1989 Ford Taurus is old. A 2014 Ford Taurus isn't old... in fact quite new. It also comes with all the fancy features of "this century". The 6509E, in a similar fashion, is not old by any means. To continue with the car references, the body style may be the same but it's the engine (or supervisor engine in this case) that provides all the new features and performance. Juniper's Virtual Chassis functionality is no more than switch stacking which Cisco has been providing for many years. The 6509E with current supervisors can also do this, but instead of stacking it is called VSS or Virtual Switching System.
Regardless, if one knows the needs of the current network and expected future network needs, this can be the basis for a decision. The brand doesn't necessarily matter.

Like pergr said... it would be nice to know more details as to what you are looking for. From there I'm sure you'll get a number of opinions from the experts.
pergrConnect With a Mentor Commented:
I would say that the 2T "renewal" of the c6500 is mainly a proof of the failure of the Nexus..., which only "single vendor" shops will buy.

Anyway, I do not blame Cisco. The c6500 has earned them a lot of money through the years and the install base is huge.

I still think that considering more than one vendor usually opens the eyes to people.

... And EX VC is a lot more than stacking.
rauenpcConnect With a Mentor Commented:
I would say that the 2T "renewal" of the c6500 is mainly a proof of the failure of the Nexus..., which only "single vendor" shops will buy.
I would disagree. They are simply continuing to build on a product that, as you already stated, has a huge installation base. This allows customer to continue to upgrade without completely replacing their infrastructure with a new product line. The Nexus switches are also targeted for specific scenarios, mostly data centers.
Since pitachip is comparing the nexus and 6500, I assume this is for the datacenter, and mentioning a 6509 leads me to also assume there is a need for port density and high throughput (at least when it comes to backplane capacity). In the juniper world he would be looking at the EX8200 or maybe EX9200. The biggest difference I see between the two (at a high level) is that the Juniper switches can have 4 members in a VSC whereas Cisco is currently limited to 2 members in a VSS.
If you could explain the differences and how Juniper is superior, it would be great knowledge to have.
pergrConnect With a Mentor Commented:
I will just past sme reading here.

Also, for many c6500 shops, a replacement with a juniper EX4200/EX4550 mixed chassis with up to 10 boxes in a single logical switch is often a good option. Even that has more bandwidth "per slot" than the c6500.

And now the EX4300 came out, with 4x40G "backplane"...
kevinhsiehConnect With a Mentor Commented:
I currently run a pair of 6509 chassis that we picked up after the crash. They have been great. Currently running SUP32, looking at maybe going to the SUP720 or SUP720-10G. Most of my ports are 10/100, with a few 10/100/1000 blades. It has been great buying used equipment for nickels or dimes on the dollar, and then run it forever. The chassis may be 20 years old before I retire it. If I needed tons of 10G non-blocking performance, I would look at using something else.

My recommendation is to look at what your current and projected needs are, and then see if your current or available blades can meet your needs. Without a needs analysis, we can't really make any recommendations.
leblancAccountingAuthor Commented:
Great feedback from all of you.
The 6509 is used for the core/distribution. We will have more users accessing the network. We will also have a new wireless infrastructure with controller in place, proabably around 90 APs. I just involved into this so I do not much the detail about the 6509. All I know is the supervisor is no a 2T.
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