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New Member

what are the bandwidth difference between a 6148GE and a 6316G

We need high bandwidth to manage servers backup. I did recommend 6316 blades but my customer did notice that the 6148GE did provide 48 10/100/1000 for half the price. Even though I was convinced that there is a clear oversubscription for the 6148, I was enable to find anything about it. Does anyone know the architecture used for the 6148 (for the 6316, I know it uses only the 32 shared bus and can use 16 Gbits bandwidth maximum, if I'm correct).

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New Member

Re: what are the bandwidth difference between a 6148GE and a 631

Both the 6316 and 6148 are 'classic' linecards, meaning that they have a connection to the shared 16 Gbps bus. (The 32 Gbps, that you reference is a marketing figure, sort of like "a 3 Mbps T1" or " a 4 Mbps E1").

As you say, the 6148GE is obviously oversubscribed, but it's a bit complex. Reading the marketing stuff, you might think it's 'only' 48-to-32 (3-to-2) oversubscribed, but it fact the ports are 8-to-1 oversubscribed, as the blade is basically six 8-to-1 mux'es that each take eight ports and mux them

onto the bus.

The good thing is that the new 10/100/1000 blades are actually being positioned as 'wiring closet' solutions.

Now, whether the oversubscription is actually a problem for your customer's specific setup, we really don't enough information to tell. If the servers do backup to a single server with a single Gigabit Ethernet connection, 8-to-1 oversubscription might work wery well.

HTH,

-A

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