Re: cat6500 ethernet module question [7:62063]

2003-01-28 Thread Larry Letterman
the 6348 has the ability to supply inline power to IP Phones
and AP units..
The 6248 does not have that ability
I am not sure about the 6148.

Larry Letterman
Network Engineer
Cisco Systems


- Original Message -
From: "dayo olabisi" 
To: 
Sent: Tuesday, January 28, 2003 1:53 PM
Subject: cat6500 ethernet module question [7:62063]


> Hello listers,
>
> does anyone know the technical difference between the
> ws-x6148-rj-45 and ws-x6348-rj-45 modules for the
> cat6500 switches?
>
> the price difference is very significant though the
> documentation on Cisco's web site doesn't show any
> technical difference.
>
> Rgds,
> dayo
>
> __
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Re: cat6500 ethernet module question [7:62063]

2003-01-28 Thread MADMAN
The 6348 is the higher-end model for the network core:

http://www.cisco.com/en/US/customer/products/hw/switches/ps708/products_data_sheet09186a0080092393.html

   Dave

dayo olabisi wrote:
> Hello listers,
> 
> does anyone know the technical difference between the
> ws-x6148-rj-45 and ws-x6348-rj-45 modules for the
> cat6500 switches?
> 
> the price difference is very significant though the
> documentation on Cisco's web site doesn't show any
> technical difference.
> 
> Rgds,
> dayo
> 
> __
> Do you Yahoo!?
> Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
> http://mailplus.yahoo.com
-- 
David Madland
CCIE# 2016
Sr. Network Engineer
Qwest Communications
612-664-3367

"You don't make the poor richer by making the rich poorer." --Winston
Churchill




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Re: cat6500 ethernet module question [7:62063]

2003-01-28 Thread dre
""dayo olabisi""  wrote in message ...
> does anyone know the technical difference between the
> ws-x6148-rj-45 and ws-x6348-rj-45 modules for the
> cat6500 switches?
>
> the price difference is very significant though the
> documentation on Cisco's web site doesn't show any
> technical difference.

wx-x6148-rj-45 is a replacement for the ws-x6348-rj-45.
they have identical functionality, but the 6148 uses newer,
better (and yes, cheaper) parts.  innovation.

if you don't believe me, then why do the Cat6k bundles ship
with ws-x6148's instead of 6348's or 6248's?

the primary difference is that the ws-x6148-rj-45 can be
UPGRADED to voice... while the ws-x6148-rj-45v SHIPS
with the inline power already hardwired.  the cost is _still_
significantly less than the 6248 or 6348 either way.

definitely purchase the 6148 modules (with or without voice -
whichever you need), because they have less bug issues, less
problems, work better, and are more cost-efficient.

the only other Cat6k Ehternet 10/100 module worth having
besides the 6148 series is the 6548.  the 6548 is fabric-enabled
(you'll know if you need it - and in many cases, fabric-enabled
for 10/100 ethernet is waaay overkill, normally the sfm2 is
reserved for all gigabit+ ethernet and/or osm sonet interfaces).
in sum, a 6548 module won't do you any good unless you are
already using the Cat6k Supervisor 2 module and the SFM or
SFM-2 modules.

to properly calculate ROI for such blades, you need to first
consider the following factors:

-dre




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Re: cat6500 ethernet module question [7:62063]

2003-01-28 Thread dre
""dre""  wrote in message ...
> ""dayo olabisi""  wrote in message ...
> > does anyone know the technical difference between the
> > ws-x6148-rj-45 and ws-x6348-rj-45 modules for the
> > cat6500 switches?
> >
> > the price difference is very significant though the
> > documentation on Cisco's web site doesn't show any
> > technical difference.
>
> to properly calculate ROI for such blades, you need to first
> consider the following factors:

woops, sent the email too quickly here you go...

normally one would consider TTM, however in this case, the upgrade
fixes bugs and solves technology issues.  there might not be heavy
TTM considerations, but there are 10/100/1000 TTM considerations
to make.  you may realize that 1-3 years down the road you will be
replacing 6148 modules with Cat6k modules (not currently available
except on the Cat 4000, 3550, and 2950 platforms) that do 10/100/1000
(obviously copper).  this should be calculated as a hard cost when doing
returns-based investment for cisco gear.

you should also consider the support costs and upgrade conditions,
as well as many other soft costs for proper ROI.  fortunately, for the
Cat6k platform, you don't pay for anything support-wise besides the
chassis, power supplies, and OSM modules (if you have any).  I
believe that Cisco also charges support on some fabric-enabled LC's,
in particular - 16-port Gigabit Ethernet modules.  You may see Cisco
(as with other vendors) charge per LC on high-end platforms like the
Cat6k, especially when feature-rich vs. feature-free modules are
concerned.




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Re: cat6500 ethernet module question [7:62063]

2003-01-28 Thread dre
""MADMAN""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> The 6348 is the higher-end model for the network core:
>
>
http://www.cisco.com/en/US/customer/products/hw/switches/ps708/products_data
_sheet09186a0080092393.html

I believe the 6348 should only be used in the access layer
(switched only environment running pure CatOS, no MSFC),
and only in voice (or maybe 802.11 wireless - that's sort of
streching the inline power value of the blades) applications.

The 6148 should also only be used in the access layer, but
should be purchased in favor of the 6348 today (the 6348
is outdated).  the 6148-rj-45v module can be used for voice
applications.

The 6548 module is a 10/100 Ethernet module more suited
for the network core, although I'm not sure what applications
would be needed in the "core" (maybe at the edge for peering?)
for 10/100 Ethernet.  Possibly for packet capture devices run
to SPAN/RSPAN -enabled ports?  Other NMS devices??




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