[c-nsp] 6509 with ws-x6148 or ws-x6348?

[Paul Stewart]

For a LAN party though, throughput shouldn't really matter that much....
you're using a Cisco switch which is MUCH better than any LAN party I've
seen.  The last one I went to had several hundred computers connected on
Dlink crap.... that didn't work so good..;)

When you figure 100-150Kbps on some games I have played, it's more about
latency and consistency which with a class 6148 I can't see a reason for any
problems...

Paul


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Geoffrey Pendery
Sent: December 23, 2008 12:44 PM
To: Pete Templin
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] 6509 with ws-x6148 or ws-x6348?

Just to clarify that, the 6148A is the newer/better version of the
6148, not just the GE version.  The term after the number tells the
speed:
WS-X6148A-GE-TX - new 10/100/1000
WS-X6148A-RJ-45 - new 10/100
WS-X6148-RJ45 - old 10/100

The 6148 vs 6348 vs 6548 vs 6748 distinction is more about the
forwarding technology (classic bus, CEF256, CEF720)
However, both 6148 and 6348 are classic bus with no fabric, and I'm
having trouble finding the distinction between them.

According to Cisco:
http://www.cisco.com/en/US/products/hw/switches/ps700/products_configuration
_example09186a0080118a5c.shtml
"Each WS-X6348 card is controlled by a single Application-Specific
Integrated Circuit (ASIC) that connects the module to both the 32 GB
data bus backplane of the switch and to a set of four other ASICs
which controls groups of 12 10/100 ports."

I can't find a similar document on the 6148, but I wouldn't expect it
to perform better (6148A however is much better but also newer and
thus probably more expensive "on the bay")

There's limitations on the ASICs, the backplane bus, and the
Supervisor, but I wouldn't expect them to be a problem for a
LAN-party.  Just as he mentioned, don't expect to drive a full 100
Mbps to each port all the time.


-Geoff


On Tue, Dec 23, 2008 at 10:45 AM, Pete Templin <petelists at templin.org>
wrote:
> wellknown at gmx.net wrote:
>
>> Can anyone explain the difference between the cards ws-x6148 and
>> ws-x6348? Both are relatively cheap available on the bay. I read
>> about some problems with the x-6348 on the list. Seems that they have
>> same buffer sizes and I am not able to find a difference.
>
> I have some ws-x6248 (48 port 10/100 copper FE), some ws-x6348 (48 port
> 10/100 copper FE), and some ws-x6148A (48 port 10/100/1000 copper GE).
> Admittedly I don't have any 6148 10/100 cards as a direct comparison.
>
> We've now declared the 6348s as infrastructure only, due to packet loss.
In
> an application where we're using it for customers rate-limited to 10Mbps
(or
> lower) or committing to 10Mbps (or lower), it's theoretically <10% loaded
> and still dropping packets.  6248s were already on their way out, due to
> less (if any) QoS support.
>
> The 6148As are "wiring closet" cards, limited to 6Gbps total and 1Gbps per
8
> ports.  I believe this also precludes any >1Gbps EtherChannels, but we
> haven't gone there.  For our uses, a SIGNIFICANT boost over the 6348s.
>
> pt
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>
_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/