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Cisco Systems Catalyst 2955 manual 78-14944-03

Models: Catalyst 2955

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Appendix C Translated Safety Warnings

Class I, Division 2, Hazardous Location

Varoitus Kun tätä laitetta käytetään luokan I, ryhmän 2 (Class I, Division 2) mukaisessa vaarallisessa paikassa, se täytyy kiinnittää sopivaan koteloon asianmukaisella johdotusmenetelmällä kaikkien virta-, tulo- ja lähtöjohtojen osalta. Käytetyn menetelmän on oltava asiasta määräävien sähkösäännösten mukainen ja noudatettava luokan I, ryhmän 2 asennuksista vastaavien viranomaisten määräyksiä.

Attention Lorsqu'il est utilisé dans un site de la Classe I, Division 2, cet équipement doit être monté dans une armoire appropriée avec câblage suffisant pour tout type de câble d'entrée et de sortie, conforme aux codes électriques en vigueur et avec l'autorité ayant juridiction sur les installations de la Classe I, Division 2.

Warnung Bei Einsatz in einem explosionsgefährdeten Gebiet gemäß Klasse 1, Abteilung 2, muss das Gerät in ein geeignetes Gehäuse eingebaut werden, und für alle Strom-, Eingangs- und Ausgangskabel muss eine geeignete Verkabelungsmethode gwählt werden, die den gültigen elektrischen Sicherheitsbestimmungen sowie den Anforderungen der für Klasse 1, Abteilung 2 zuständigen Behörden entsprechen.

Avvertenza Allorché usata in un'area pericolosa di Classe I, Divisione 2, quest'apparecchiatura deve essere montata in una struttura adatta con un metodo di cablaggio appropriato per le linee di alimentazione, entrata e uscita, che sia conforme alle norme elettriche vigenti e in osservanza all'autorità avente giurisdizione sulle installazioni di Classe I, Divisione 2.

Advarsel Når dette utstyret brukes i et farlig område i klasse I, seksjon 2, må det monteres i et egnet avgrenset område med korrekt ledningsopplegg for all strøm, inngangs- og utgangskabler som samsvarer med gjeldende elektriske koder og i henhold til fagfolk som har kompetanse for klasse 1, seksjon 2-installasjoner.

Aviso Quando utilizado em um local de risco de Classe I, Divisão 2, este equipamento deve ser montado em um gabinete apropriado com o cabeamento adequado para toda a alimentação e cabeamento de entrada e saída, sendo estes compatíveis com os códigos elétricos vigentes e de acordo com a autoridade que regula instalações de Classe I, Divisão 2.

 

Catalyst 2955 Hardware Installation Guide

C-30

78-14944-03

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Cisco Systems Catalyst 2955 manual 78-14944-03
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Catalyst 2955 specifications

The Cisco Systems Catalyst 2955 is a robust and versatile Ethernet switch designed for enterprises seeking reliable Layer 2 switching capabilities. Known for its steadfast performance and extensive feature set, the Catalyst 2955 is particularly favored for environments requiring high-density connectivity and advanced traffic management.

One of the hallmark features of the Catalyst 2955 is its support for IEEE 802.1Q VLAN tagging, which allows for efficient traffic segregation and helps improve network security. The switch can handle up to 256 virtual LANs, supporting a more organized network structure and optimized resource allocation. This VLAN capability is crucial for businesses that need to segment their networks for various departments or applications while maintaining efficient communication between them.

The Catalyst 2955 is equipped with a comprehensive Quality of Service (QoS) mechanism, which prioritizes critical applications and ensures that voice, video, and data traffic receive appropriate bandwidth. By providing features such as classification, marking, queuing, and congestion avoidance, the switch helps meet the demands of real-time applications, thereby enhancing user experience and productivity.

Another remarkable technology integrated into the Catalyst 2955 is Spanning Tree Protocol (STP), which prevents loops in redundant network connections. Enhanced with features like Rapid Spanning Tree Protocol (RSTP), this switch minimizes downtime by allowing for quicker convergence times in case of topology changes. The ability to support both STP and RSTP is vital for maintaining network stability and performance.

The Catalyst 2955 is also designed with network management and monitoring in mind. It includes features like Simple Network Management Protocol (SNMP), which enables administrators to manage network resources effectively and troubleshoot issues more efficiently. With support for Cisco’s proprietary software, it offers insights into traffic patterns and usage statistics that can aid in maintaining optimal network health.

Physical characteristics of the Catalyst 2955 include various configurations with either 24 or 48 ports, suitable for different deployment scenarios. The switch is designed for rack mounting, making it an ideal solution for data centers and enterprise networks where space is a consideration.

In summary, the Cisco Systems Catalyst 2955 stands out for its solid Layer 2 functionality, VLAN support, QoS capabilities, network stability features such as STP, and extensive management tools, making it an excellent choice for organizations aiming to enhance network resiliency and performance. Its balance of performance and manageability continues to make it a viable option in the competitive landscape of networking equipment.