[c-nsp] Card Throughput - 6148A-GE-TX

[Paul Stewart]

Thanks to everyone for the on-list/off-list replies.  We were of the
understanding it was 2Gb/s which I was obviously wrong on - this keeps us
"out of trouble" for the time being thankfully.

No etherchannel on these cards neither ;)

Cheers,

Paul


-----Original Message-----
From: Pete Templin [mailto:petelists at templin.org] 
Sent: January-31-10 9:06 AM
To: Matt Buford
Cc: Paul Stewart; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Card Throughput - 6148A-GE-TX

Matt Buford wrote:

> Each range of 8 ports (1-8, 9-16, 17-24, 25-32, 33-40, 41-48) has an ASIC.
>  Each ASIC can do a max of 1 Gb in each direction.  If all ports on a
group
> of 8 were to upload and download, their combined throughput would be 1 Gb
> upload and 1 Gb download.  If all ports on the card were to upload and
> download at the same time, the combined throughput would be 6 Gb upload
and
> 6 Gb download (1 Gb per group with 6 groups).

I've also heard that there's a 1Gbps limit on EtherChannels - apparently 
EtherChannel packets have to be sent to each ASIC, so building any 
EtherChannels on the card could be detrimental.

pt