SV: [nsp] FE on 7200

[Siva Valliappan]

On Tue, 13 Jan 2004, jgh_cisco wrote:

> Hello!
>
> Won't 2*PA-2FE-TX give you trouble with "bandwidth points", on all NPEs,
> except NPE-G1 ?
>
> It is my understanding that you have 600 bandwidth points on each of the two
> buses, and that the FEs on the I/O controller on all NPEs except NPE-G1
> count (Left bus, I/O + slot 1,3,5; Right bus: 2,4,6).

correct

> NPE-400 means 400 bandwidth points, as do PA-2FE-TX, leaving no points
> available for a second FA-2FE-TX ?
>

nope.  the NPE-400 refers to a certain level of switching performance,
but does not imply a BW point limit.  so you could have 2 PA-2FE-TX,
and 2 PA-FEs (for a total of 6 FE ports) without oversubscribing the bus.
(assuming you are not using a IO controller with any ports on it).

or if you are using the NPE-G1, you could have up to 9 ports.  3 10/100/1000
ports on the NPE-G1, + 6 more from the PAs.

if you want a router platform with any higher density, you need to look at
the 7300, 10000, 10720, 12000.  the 6500/7600 running native isn't what i
would call a switch  :)

cheers
.siva

> http://www.cisco.com/en/US/partner/products/hw/modules/ps2033/products_confi
> guration_guide_chapter09186a008014cf5c.html
>
> In fact, we are looking for a router platform (not switch; 6500/7600) that
> have "many" (5-10) FEs, which can do 802.1q.  Overlapping VLAN IDs are an
> issue, therefore placing a switch in front of the router FE port is not an
> option.
>
> Jan G. Hope
>
>
> > The PA-2FE-TX is a very nice one.  But it's a single point of failure
> > (if the PA breaks, both FEs are dead), so if you have enough slots, go for
> > 2x PA-FE...
>
> > gert
>
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