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Cisco Feature Card 4p TR MM ST f Cat 3900 network switch component

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Cisco
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Feature Card 4p TR MM ST f Cat 3900
Product code :
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WS-C3900-4RF=
Category
A network switch is a computer networking device that links network segments or network devices. The term commonly refers to a multi-port network bridge that processes and routes data at the data link layer (layer 2) of the OSI model. Switches that additionally process data at the network layer (layer 3) and above are often called layer-3 switches or multilayer switches. A network switch is made up of network switch components.
Network Switch Components
Icecat Product ID :
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Info modified on: 04 Apr 2019 03:55:10
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Long product name Cisco Feature Card 4p TR MM ST f Cat 3900 network switch component :
The short editorial description of Cisco Feature Card 4p TR MM ST f Cat 3900 network switch component

4 Port Fiber Token Ring Feature Card (MMF ST)
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Cisco Feature Card 4p TR MM ST f Cat 3900 network switch component:
The official marketing text of Cisco Feature Card 4p TR MM ST f Cat 3900 network switch component as supplied by the manufacturer

In 1997, Cisco introduced the second-generation family of Token Ring switchesæthe Catalyst 3900 stackable Token Ring switch, followed a few months later by the Catalyst 3920 stackable Token Ring switch. These products quickly gained a high level of customer acceptance and have subsequently been installed in thousands of mission-critical Token Ring networks worldwide. However, since that time the number of customers continuing to use Token Ring has decreased dramatically, with most customers converting to networks based on Ethernet. The demand for Token Ring products is now at a very low level. Vendors that produce chips used for the production of these products are discontinuing those chips, making the continuing production impossible without expensive redesign. Considering the low level of demand, it is not practical for Cisco to undertake this redesign. Cisco is, therefore, announcing the End of Sale of the products listed in Table 1, effective February 12, 2003. There are no replacement products. Cisco is making this announcement a full year prior to actual End of Sale to give customers who have not yet completed migration to Ethernet an opportunity to adjust their plans as necessary.

Short summary description Cisco Feature Card 4p TR MM ST f Cat 3900 network switch component:
This short summary of the Cisco Feature Card 4p TR MM ST f Cat 3900 network switch component data-sheet is auto-generated and uses the product title and the first six key specs.

Cisco Feature Card 4p TR MM ST f Cat 3900, Token Ring, Cisco 3900 upgrade slot

Long summary description Cisco Feature Card 4p TR MM ST f Cat 3900 network switch component:
This is an auto-generated long summary of Cisco Feature Card 4p TR MM ST f Cat 3900 network switch component based on the first three specs of the first five spec groups.

Cisco Feature Card 4p TR MM ST f Cat 3900. Data link protocols: Token Ring. Slot type: Cisco 3900 upgrade slot

Features
Internal
Yes
Network
Data link protocols
Token Ring
Ports & interfaces
Slot type
Cisco 3900 upgrade slot