Developer Forum

I am looking to replace a core network with a new 6509 chassis. I am
replacing a cabletron/enterasys ssr8600 16 slot switch/router. My
question is: how much more value do i get with SUP 720 card vs Sup II
but not sure I can justify the costs. I want to take advantage of
10/100/1000 ae 48 port cards. I see express forwarding but...

In article < XXXX@XXXXX.COM >,
XXXX@XXXXX.COM says...

48 gig ports per card on a sup II is badly overbooked, with only an 8
gig bplane connection. It's still overbooked on a 720, but with two
20 gig connections, much less so.

/Chris, UCLA

Hello, Chris!
You wrote on Fri, 16 Apr 2004 18:34:40 -0700:

>> I am looking to replace a core network with a new 6509 chassis.
>> I am replacing a cabletron/enterasys ssr8600 16 slot
>> switch/router. My question is: how much more value do i get
>> with SUP 720 card vs Sup II but not sure I can justify the
>> costs. I want to take advantage of 10/100/1000 ae 48 port
>> cards. I see express forwarding but...

CT> 48 gig ports per card on a sup II is badly overbooked, with
CT> only an 8 gig bplane connection. It's still overbooked on a
CT> 720, but with two 20 gig connections, much less so.

Just my $0.02v- in order to get 8 gig (actually 16 gig, I believe, because it
will be dual attached) with Sup II you need Switched Fabric Module also. Last
time I've looked into Cisco's price list Sup II + SFM was about $7K more than
Sup720 which has SFM built-in. So from price point of view Sup720 is cheaper
unless you don't want/have fabric enabled modules and the only thing you need is
32 gig shared backplane. But than - why not 3750? :-)

With best regards,
Andrey.

In article <c5q4dt$9u9$ XXXX@XXXXX.COM >, XXXX@XXXXX.COM says...

Before considering the throughput numbers, you have think about support.
Or lack thereof. Last time we looked at the 720 (two months ago?),
there was *ONE* image that supported it. If you run into some type of a
bug, you're screwed. This was a deal breaker for us. I'll wait til the
beast matures a bit more.


--

hsb

"Somehow I imagined this experience would be more rewarding" Calvin
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Hello, Hansang!
You wrote on Sat, 17 Apr 2004 03:14:45 GMT:

HB> Before considering the throughput numbers, you have think
HB> about support.
HB> Or lack thereof. Last time we looked at the 720 (two months
HB> ago?), there was *ONE* image that supported it. If you run
HB> into some type of a bug, you're screwed. This was a deal
HB> breaker for us. I'll wait til the beast matures a bit more.

Well, either your two months are really long ones or... Quick look into Software
Center shows that there is 5 images in CatOS and 6 in IOS :-)

But on a serious note I totally agree - if, for example, Safe Harbor images is
the only choice than price/performance is not an important factor at all.

With best regards,
Andrey.

To me, IOS wins out regardless of other features. But that's just me.



On 16 Apr 2004 13:40:23 -0700, XXXX@XXXXX.COM (netman42)

Hello Andrey,
Thanks for all the responses...
What do you mean by the 3750? I know that is a workgroup level switch.

Thanks,
Netman42

In article < XXXX@XXXXX.COM >,
XXXX@XXXXX.COM says...


The 3750 is an extremely capable "workstation switch" which has a 32
Gb backplane, and full routing capabilities including BGP (although
due to memory constraints it won't hold a full Internet route table.)
In a lot of ways, the 3750 is similar in performance to a small 6500
with a Sup 1 or Sup 2 without SFM (switch fabric module), and very
much less expensive. I believe that was Andrey's point.

/Chris, UCLA