Cisco 3550-12T - Catalyst Switch - Stackable Вопросы и ответы - Страница 6
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COMPARISON TO OTHER CISCO CATALYST FIXED-CONFIGURATION SWITCHES
Q.
Are there plans to discontinue the Cisco Catalyst 3500 XL Series Switches?
A.
The Cisco Catalyst 3550 and Catalyst 2950 Series Switches have replaced the majority of Cisco Catalyst 3500 XL Series
Switches. The end of sale for the Cisco Catalyst 3512 XL, Catalyst 3524 XL, and Catalyst 3548 XL was July 27, 2002.
Information is available at:
The end of sale for the Cisco Catalyst 3524-PWR XL was August 12, 2004. Information is available at:
http://www.cisco.com/en/US/products/hw/switches/ps637/prod_eol_notices_list.html
The end of sale for the Cisco Catalyst 3508G XL was September 17, 2005. Information is available at:
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps637/prod_end-of-life_notice0900aecd8021a948.html
Q.
What is the positioning of the Cisco Catalyst 3550 Series relative to the Cisco Catalyst 3500 XL Series?
A.
The Cisco Catalyst 3550 Series Switches are expected to be deployed in similar topological positions in the network as
the Cisco Catalyst 3500 XL Series Switches. These positions include the access layer and network backbone of
enterprise wiring closets and branch office networks. The Cisco Catalyst 3550 Series is ideal for those networks requiring
multilayer services such as IP routing, advanced QoS, multicast management, and security ACLs.
Q.
How is the Cisco Catalyst 2970 Series positioned relative to the Cisco Catalyst 3550 Series?
A.
The Cisco Catalyst 2970 Series Switches are standalone Gigabit Ethernet switches, whereas the Cisco Catalyst 3550
Series comprises stackable 10/100 switches with GBIC-based gigabit connectivity for the access layer and gigabit
switches for the network backbone. Cisco Catalyst 3550 Series customers who are migrating to gigabit should first
consider their needs for IP routing, fiber uplinks, increased availability and scalability, ease of use, and stacking, which
are all offered in the Cisco Catalyst 3550 Series.
Q.
What is the positioning of the Cisco Catalyst 3550 Series relative to the Cisco Catalyst 2950 Series?
A.
The Cisco Catalyst 3550 Series and the Cisco Catalyst 2950G switches are capable of delivering intelligent services
such as advanced QoS, rate-limiting, security filtering, and multicast management to the network edge. The Cisco
Catalyst 3550 Series Switches are the premium fixed-configuration switches and offer greater product family breadth, a
richer set of enterprise-class features, and a platform that supports dynamic, hardware-based IP routing.
Q.
Are the Cisco Catalyst 3550 Series Switches compatible with the Cisco Catalyst 3500 XL Series Switches?
A.
The Cisco Catalyst 3550 Series Switches are completely compatible with the Cisco Catalyst 3500 XL Series Switches.
Committed to protecting customers' investments in desktop switches, Cisco Systems® has ensured that all desktop
switching platforms including the Cisco Catalyst 3750, Catalyst 3550, Catalyst 2970, Catalyst 2950, Catalyst 2940,
Catalyst 3500 XL, Catalyst 2900 XL, Catalyst 2900 LRE XL, and Catalyst 1900 Series can be mixed and managed using
the Cisco Network Assistant Software. Additionally, the GBIC ports on the Cisco Catalyst 3550 Series support the Cisco
GigaStack GBIC for point-to-point or cascade stacking configurations. These investments deliver long-term value for
Cisco customers.
Q.
What is the positioning of the Cisco Catalyst 3550 Series relative to the Cisco Catalyst 4908G-L3 and 2948G-L3?
A.
The Cisco Catalyst 3550 Series Switches are next-generation, fixed-configuration multilayer switches. Cisco expects
customers to migrate to the Cisco Catalyst 3550-12G from the Catalyst 4908G-L3, and to the Catalyst 3550-48 from the
Catalyst 2948G-L3. This migration is expected because the Cisco Catalyst 3550 Series Switches are able to provide
some features not supported by the Catalyst 4908G-L3 and Catalyst 2948G-L3 switches-such as support for 802.1p,
802.1p-to-DSCP mapping, and SPAN-at a significantly lower price per port.
Q.
Does the Cisco Catalyst 3550-24 PWR Switch support the 802.3af inline power standard?
A.
No, this switch supports Cisco Pre-Standard Power over Ethernet. The Catalyst 3750 Series and Catalyst 3560 Series
support the Cisco Pre-Standard Power over Ethernet and IEEE 802.3af Power over Ethernet.
All contents are Copyright © 1992–2006 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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