Cisco WS-C3550-48-EMI Bedienungsanleitung PDF herunterladen (Seite 2)

Cisco Systems, Inc.

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The Cisco Catalyst 3550 Series Intelligent Ethernet Switches include the following conﬁgurations:

• Catalyst 3550-24 Switch—24 10/100 ports and two Gigabit Interface Converter (GBIC)-based Gigabit Ethernet

ports; 1 rack unit (RU)

• Catalyst 3550-24 PWR Switch—24 10/100 ports with integrated inline power and two GBIC-based Gigabit

Ethernet ports; 1 RU

• Catalyst 3550-24-DC Switch—24 10/100 ports and two GBIC-based Gigabit Ethernet ports; 1 RU; DC-powered

• Catalyst 3550-24-FX Switch—24 100FX ports and two GBIC-based Gigabit Ethernet ports; 1 RU

• Catalyst 3550-48 Switch—48 10/100 ports and two GBIC-based Gigabit Ethernet ports; 1 RU

• Catalyst 3550-12G Switch—10 GBIC-based Gigabit Ethernet ports and two 10/100/1000BASE-T ports; 1.5 RU

• Catalyst 3550-12T switch—10 10/100/1000BASE-T ports and two GBIC-based Gigabit Ethernet ports; 1.5 RU

The built-in Gigabit Ethernet ports accommodate a range of GBIC transceivers, including the Cisco GigaStack

GBIC, 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX and CWDM GBICs. The dual GBIC-based

Gigabit Ethernet implementation on the Fast Ethernet configurations provides customers tremendous deployment

flexibility—allowing customers to implement one type of stacking and uplink configuration today, while preserving the

option to migrate that configuration in the future. High levels of stack resiliency can also be implemented by deploying

dual redundant Gigabit Ethernet uplinks, a redundant GigaStack GBIC loopback cable, UplinkFast and CrossStack

UplinkFast technologies for high-speed uplink and stack interconnection failover, and Per VLAN Spanning Tree Plus

(PVST+)foruplinkloadbalancing.ThisGigabit Ethernetflexibilitymakes theCatalyst3550switches an idealLANedge

complement to the Cisco Catalyst 6500 family of Gigabit Ethernet optimized core LAN switches.

Included with the Catalyst 3550-24, 3550-24 PWR, 3550-24-DC, 3550-24-FX and 3550-48 are the Standard

Multilayer Software Image (SMI) or the Enhanced Multilayer Software Image (EMI). The SMI feature set includes

advanced QoS, rate-limiting, access control lists (ACLs), and basic static and routed information protocol (RIP)

routing functionality. The EMI provides a richer set of enterprise-class features including advanced hardware-based

IP unicast and multicast routing and the Web Cache Communication Protocol (WCCP). After initial deployment, the

EMI Upgrade Kit gives users the ﬂexibility to upgrade to the EMI. The Catalyst 3550-12T and 3550-12G are only

available with the EMI.

Figure 1

Catalyst 3550 Series Switches

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Cisco WS-C3550-48-EMI Bedienungsanleitung Seite 2