[j-nsp] EX3200 Interface Strangeness

[Chris Kawchuk]

EX3200 - You can add 10G ports without losing the 1G ports on the main  
board... has to do with the internal architecture.

EX4200 - No loss of ports anywhere. It has a 3rd PFE chip which can  
handle the extra capacity.

The problem lies with the fact that the EX3200 only has 2 PFE chips,  
while the EX4200 has 3 PFE chips. There is literally "not enough  
wires" on the EX3200 in order to support 4 x GE on the expansion slot  
as well as all the internal ports.

However, the EX3200 does have wires "hard coded" for 2 x 10GE going to  
the expansion slot.

- Chris.


On 17-Aug-09, at 8:52 AM, Brendan Mannella wrote:

> What happens if a 10g card is installed? Do you lose the last two  
> ports?
>
> And is this behavior the same on the 4200?
>
>
> On 8/17/09 10:41 AM, "Bill Blackford" <BBlackford at nwresd.k12.or.us>  
> wrote:
>
>> That makes sense. I'm not at all happy with it, but it makes sense.  
>> I'm am
>> using ge-0/1/0 which must correspond to ge-0/0/20.
>>
>> Thanks.
>>
>>