Used Cisco Gigabit Ethernet Switching Module

Part # WS-X4418-GB

Product Description: Cisco Catalyst 4000 Series - GE Module, Server Switching 18-ports: 4:1 oversubscribed, 1000BASE-X (GBIC), IEEE 802.3, IEEE 802.3x flow control.

This Cisco WS-X4418-GB module is specifically targeted at building cost-effective Gigabit Ethernet server farms, rather than backbone switch-to-switch applications. It provides two dedicated Gigabit Ethernet uplinks, as well as up to 16 ports per module for high-performance Gigabit Ethernet server connectivity. The 16 server ports can burst to Gigabit Ethernet line rate, and share 8 Gbps of full duplex bandwidth into the switching fabric. Since all ports use GBICs, the amount of over subscription can be controlled  by varying the number of GBICs used. The server ports use the standard IEEE 802.3x flow control (PAUSE frame) mechanism to control Gigabit Ethernet host traffic. It is designed for the Catalyst 4000 series that provides an advanced high-performance enterprise switching solution optimized for wiring closets with up to 96 users and data center server environments that require up to 36 Gigabit Ethernet ports.

Enterprise and Commercial: Designed for fiber to the desktop, switch-to=switch applications, or small server farms.

Metro Ethernet: GBIC flexibility designed for network operators building the next generation of Metro Ethernet networks.

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