CISCO Refurbished
- Manufacturer
- CISCO
- Condition
- Refurbished
- Availability
- In Stock
- List Price/RRP
- US$4,995.00
- Price
- US$37.00 Enquire
Description
The WS-C3550-48-SMI is a network switch made by Cisco. It has 48 ethernet ports that allow devices to connect to each other and the internet. This switch uses the Simple Network Management Protocol (SNMP) to monitor and manage network traffic, ensuring that the network maintains optimal performance. The switch also features Quality of Service (QoS), which prioritizes network traffic based on the user's needs, ensuring critical data is transmitted first. The device has a compact design and can be mounted on a rack for easy installation. It is capable of supporting a range of network security features that prevent unauthorized access to the network. The switch is compatible with a variety of operating systems and can be configured through a web-based interface or command line interface. Overall, the WS-C3550-48-SMI is a reliable and versatile network switch that can be used in various settings to help manage and maintain efficient network operations.
- Part Code
- WS-C3550-48-SMI
- Description
- 48-10/100 and 2 GBIC ports:Std Multilayer SW Image
- Weight
- 3kg
- Manufacturer
- CISCO
- End of Hardware Support
- Yes
- End of Sale
- Yes
- End of Life
- Yes
- Warranty
-
Product Features and Benefits
Expand
Product Features and Benefits
Availability/Scalability
High-Performance IP Routing
Cisco Express Forwarding (CEF)-based routing architecture performed in hardware to deliver extremely high-performance IP routing.
Support for basic IP unicast routing protocols (static, RIPv1, RIPv2) for small network routing applications.
Support for advanced IP unicast routing protocols (OSPF, IGRP, EIGRP, BGPv4) for load balancing and constructing scalable LANs – requires EMI.
Inter-VLAN IP routing for full Layer 3 routing between two or more VLANs.
Equal cost routing for load balancing and redundancy.
Protocol-Independent Multicast (PIM) for IP multicast routing within a network that enables the network to receive the multicast feed requested and for switches not participating in the multicast to be pruned support for PIM sparse mode (PIM-SM), PIM dense mode (PIM-DM), and PIM sparse-dense mode – requires EMI.
Distance Vector Multicast Routing Protocol (DVMRP) tunneling for interconnecting two multicast-enabled networks across non-multicast networks—requires EMI.
Fallback bridging for forwarding of non-IP traffic between two or more VLANs.
Cisco Hot Standby Router Protocol (HSRP) to create redundant fail-safe routing topologies.
Support for basic IP unicast routing protocols (static, RIPv1, RIPv2) for small network routing applications.
Support for advanced IP unicast routing protocols (OSPF, IGRP, EIGRP, BGPv4) for load balancing and constructing scalable LANs – requires EMI.
Inter-VLAN IP routing for full Layer 3 routing between two or more VLANs.
Equal cost routing for load balancing and redundancy.
Protocol-Independent Multicast (PIM) for IP multicast routing within a network that enables the network to receive the multicast feed requested and for switches not participating in the multicast to be pruned support for PIM sparse mode (PIM-SM), PIM dense mode (PIM-DM), and PIM sparse-dense mode – requires EMI.
Distance Vector Multicast Routing Protocol (DVMRP) tunneling for interconnecting two multicast-enabled networks across non-multicast networks—requires EMI.
Fallback bridging for forwarding of non-IP traffic between two or more VLANs.
Cisco Hot Standby Router Protocol (HSRP) to create redundant fail-safe routing topologies.
Superior Redundancy for Fault Backup
Cisco UplinkFast/BackboneFast technologies ensure quick fail-over recovery enhancing overall network stability and reliability. CrossStack UplinkFast (CSUF) technology provides increased redundancy and network resiliency through fast spanning-tree convergence (less than two seconds) across a stack of switches using GigaStack GBICs in an independent stack backplane cascaded configuration.
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) provides rapid convergence of the spanning tree independent of spanning-tree timers.
Supports Cisco HSRP to create redundant fail-safe routing topologies.
Redundant stacking connections provide support for a redundant loopback connection for top and bottom switches in an independent stack backplane cascaded configuration.
Command switch redundancy enabled in the CMS Software allows customers to designate a backup command switch that takes over cluster management functions if the primary command switch fails.
Provides unidirectional link detection (UDLD) and Aggressive UDLD for detecting and disabling unidirectional links on fiber-optic interfaces caused by incorrect fiber-optic wiring or port faults.
Switch port Auto-recovery (or “errDisable”) automatically attempts to re-enable a link that becomes disabled due to a network error.
Support for Cisco’s optional Redundant Power System 300 (RPS 300 supports all Catalyst 3550 Switches except the Catalyst 3550-24 PWR) and/or the Redundant Power System 675 (RPS 675 supports all Catalyst 3550 Switches) that provides superior internal power source redundancy for up to six Cisco networking devices resulting in improved fault tolerance and network uptime.
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) provides rapid convergence of the spanning tree independent of spanning-tree timers.
Supports Cisco HSRP to create redundant fail-safe routing topologies.
Redundant stacking connections provide support for a redundant loopback connection for top and bottom switches in an independent stack backplane cascaded configuration.
Command switch redundancy enabled in the CMS Software allows customers to designate a backup command switch that takes over cluster management functions if the primary command switch fails.
Provides unidirectional link detection (UDLD) and Aggressive UDLD for detecting and disabling unidirectional links on fiber-optic interfaces caused by incorrect fiber-optic wiring or port faults.
Switch port Auto-recovery (or “errDisable”) automatically attempts to re-enable a link that becomes disabled due to a network error.
Support for Cisco’s optional Redundant Power System 300 (RPS 300 supports all Catalyst 3550 Switches except the Catalyst 3550-24 PWR) and/or the Redundant Power System 675 (RPS 675 supports all Catalyst 3550 Switches) that provides superior internal power source redundancy for up to six Cisco networking devices resulting in improved fault tolerance and network uptime.
Integrated Cisco IOS Features for Bandwidth Optimization
Bandwidth aggregation of up to 16 Gbps through Gigabit EtherChannel technology and up to 1.6 Gbps through Fast EtherChannel technology enhances fault tolerance and offers higher speed aggregated bandwidth between switches, to routers and individual servers. Per-port broadcast, multicast, and unicast storm control prevents faulty end stations from degrading overall systems performance.
WCCP allows the interaction with a web cache for the purpose of redirecting content requests to a cache and performing basic load balancing across multiple caches—requires EMI.
IEEE 802.1D Spanning-Tree Protocol support for redundant backbone connections and loop-free networks simplifies network configuration and improves fault tolerance.
PVST+ allows for Layer 2 load sharing on redundant links to efficiently utilize the extra capacity inherent in a redundant design.
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP) allows a spanning tree instance per VLAN enabling Layer 2 load sharing on redundant links.
Equal cost routing for Layer 3 load balancing and redundancy
Local Proxy ARP works in conjunction with private VLAN edge to minimize broadcasts and maximize available bandwidth.
VLAN Trunking Protocol (VTP) pruning limits bandwidth consumption on VTP trunks by flooding broadcast traffic only on trunk links required to reach the destination devices.
IGMP snooping provides for fast client joins and leaves of multicast streams and limits bandwidth-intensive video traffic to only the requestors.
Multicast VLAN Registration (MVR) continuously sends multicast streams in a multicast VLAN while isolating the streams from subscriber VLANs for bandwidth and security reasons.
WCCP allows the interaction with a web cache for the purpose of redirecting content requests to a cache and performing basic load balancing across multiple caches—requires EMI.
IEEE 802.1D Spanning-Tree Protocol support for redundant backbone connections and loop-free networks simplifies network configuration and improves fault tolerance.
PVST+ allows for Layer 2 load sharing on redundant links to efficiently utilize the extra capacity inherent in a redundant design.
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP) allows a spanning tree instance per VLAN enabling Layer 2 load sharing on redundant links.
Equal cost routing for Layer 3 load balancing and redundancy
Local Proxy ARP works in conjunction with private VLAN edge to minimize broadcasts and maximize available bandwidth.
VLAN Trunking Protocol (VTP) pruning limits bandwidth consumption on VTP trunks by flooding broadcast traffic only on trunk links required to reach the destination devices.
IGMP snooping provides for fast client joins and leaves of multicast streams and limits bandwidth-intensive video traffic to only the requestors.
Multicast VLAN Registration (MVR) continuously sends multicast streams in a multicast VLAN while isolating the streams from subscriber VLANs for bandwidth and security reasons.
Ultra-Flexible and Scalable Stacking
The Cisco GigaStack GBIC delivers a hardware-based, independent stacking bus with up to 2 Gbps forwarding rate in a point-to-point configuration, or 1 Gbps forwarding bandwidth when daisy chained with up to nine switches.
Security
Security
Bridge protocol data unit (BPDU) guard shuts down Spanning-Tree Protocol PortFast-enabled interfaces when BPDUs are received to avoid accidental topology loops.
Spanning-tree root guard (STRG) prevents edge devices not in the network administrator's control from becoming Spanning-Tree Protocol root nodes.
IGMP Filtering provides multicast authentication by filtering out non-subscribers and limits the number of concurrent multicast streams available per port.
Private VLAN edge provides security and isolation between ports on a switch, ensuring that users cannot snoop on other users’ traffic.
Trusted Boundary provides the ability to trust the QoS priority settings if an IP phone is present and disable the trust setting in the event that the IP phone is removed, thereby preventing a malicious user from overriding prioritization policies in the network.
Switch Port Analyzer (SPAN) for Cisco Secure Intrusion Detection System (IDS) support allows the IDS to take action when an intruder is detected.
The user-selectable address-learning mode simplifies configuration and enhances security.
Cisco CMS Software Security Wizards ease the deployment of security features for restricting user access to a server, a portion of the network or access to the network.
Spanning-tree root guard (STRG) prevents edge devices not in the network administrator's control from becoming Spanning-Tree Protocol root nodes.
IGMP Filtering provides multicast authentication by filtering out non-subscribers and limits the number of concurrent multicast streams available per port.
Private VLAN edge provides security and isolation between ports on a switch, ensuring that users cannot snoop on other users’ traffic.
Trusted Boundary provides the ability to trust the QoS priority settings if an IP phone is present and disable the trust setting in the event that the IP phone is removed, thereby preventing a malicious user from overriding prioritization policies in the network.
Switch Port Analyzer (SPAN) for Cisco Secure Intrusion Detection System (IDS) support allows the IDS to take action when an intruder is detected.
The user-selectable address-learning mode simplifies configuration and enhances security.
Cisco CMS Software Security Wizards ease the deployment of security features for restricting user access to a server, a portion of the network or access to the network.
Network Administration Security
TACACS+ and RADIUS authentication to enable centralized control of the switch and restrict unauthorized users from altering the configuration. Multilevel security on console access prevents unauthorized users from altering the switch configuration.
SSH, Kerberos, and SNMPv3 provides network security by encrypting administrator traffic during Telnet and SNMP sessions—SSH, Kerberos, and the crypto version of SNMPv3 require a special crypto software image due to US export restrictions.
SSH, Kerberos, and SNMPv3 provides network security by encrypting administrator traffic during Telnet and SNMP sessions—SSH, Kerberos, and the crypto version of SNMPv3 require a special crypto software image due to US export restrictions.
User and Device Authentication
IEEE 802.1x for dynamic port-based security to prevent unauthorized clients from gaining access to the network.
Port Security secures the access to a port based on the MAC address of a users device. The aging feature removes the MAC address from the switch after a specific timeframe to allow another device to connect to the same port, thereby eliminating administrative overhead associated with this feature.
Port Security secures the access to a port based on the MAC address of a users device. The aging feature removes the MAC address from the switch after a specific timeframe to allow another device to connect to the same port, thereby eliminating administrative overhead associated with this feature.
Granular Access Control and Identity-based Network Services
Cisco security VLAN ACLs (VACLs) on all VLANs to prevent unauthorized data flows to be bridged within VLANs.
Cisco standard and extended IP security Router ACLs (RACLs) for defining security policies on routed interfaces for control plane and data plane traffic.
Port-based ACLs (PACLs) for Layer 2 interfaces allows security policies to be applied on individual switch ports.
Time-based ACLs allow the implementation of security settings during specific periods of the day or days of the week.
802.1x with VLAN assignment allows a dynamic VLAN assignment for a specific user regardless of where the user is connected.
802.1x with an ACL assignment allows for specific security policies based on a user regardless of where the user is connected.
802.1x with voice VLAN to permit an IP phone access to the voice VLAN irrespective of the authorized or unauthorized state of the port.
802.1x and port security for authenticating the port and managing network access for all MAC addresses, including that of the client.
Support for dynamic VLAN assignment through implementation of VLAN Membership Policy Server (VMPS) client functionality provides flexibility in assigning ports to VLANs. Dynamic VLAN enables fast assignment of IP address.
Cisco standard and extended IP security Router ACLs (RACLs) for defining security policies on routed interfaces for control plane and data plane traffic.
Port-based ACLs (PACLs) for Layer 2 interfaces allows security policies to be applied on individual switch ports.
Time-based ACLs allow the implementation of security settings during specific periods of the day or days of the week.
802.1x with VLAN assignment allows a dynamic VLAN assignment for a specific user regardless of where the user is connected.
802.1x with an ACL assignment allows for specific security policies based on a user regardless of where the user is connected.
802.1x with voice VLAN to permit an IP phone access to the voice VLAN irrespective of the authorized or unauthorized state of the port.
802.1x and port security for authenticating the port and managing network access for all MAC addresses, including that of the client.
Support for dynamic VLAN assignment through implementation of VLAN Membership Policy Server (VMPS) client functionality provides flexibility in assigning ports to VLANs. Dynamic VLAN enables fast assignment of IP address.
Quality of Service/Control
Advanced Quality of Service
802.1p CoS and Differentiated Services Code Point (DSCP) field classification via marking and reclassification on a per packet basis using source/destination IP address, source/destination MAC address, or Layer 4 TCP/UDP port number.
Automatic QoS (Auto-QoS) greatly simplifies the configuration of QoS in VoIP networks by issuing interface and global switch commands that allow the detection of Cisco IP phones, the classification of traffic, and egress queue configuration.
Cisco control plane and data plane quality of service ACLs on all ports to ensure proper marking on a per packet basis.
Four egress queues per port supported in hardware to enable differentiated management of up to four types of traffic.
WRR scheduling to ensure differential prioritization of packet flows by intelligently servicing the egress queues.
WRED on all Gigabit Ethernet ports for avoidance of congestion at the egress queues before a disruption occurs.
Strict priority queuing to guarantee that the highest priority packets will always get serviced ahead of all other traffic.
No performance penalty for highly granular quality of service functionality.
Automatic QoS (Auto-QoS) greatly simplifies the configuration of QoS in VoIP networks by issuing interface and global switch commands that allow the detection of Cisco IP phones, the classification of traffic, and egress queue configuration.
Cisco control plane and data plane quality of service ACLs on all ports to ensure proper marking on a per packet basis.
Four egress queues per port supported in hardware to enable differentiated management of up to four types of traffic.
WRR scheduling to ensure differential prioritization of packet flows by intelligently servicing the egress queues.
WRED on all Gigabit Ethernet ports for avoidance of congestion at the egress queues before a disruption occurs.
Strict priority queuing to guarantee that the highest priority packets will always get serviced ahead of all other traffic.
No performance penalty for highly granular quality of service functionality.
Manageability
Cluster Management Suite
Built-in Web-based Cisco CMS Software provides an easy- to-use Web-based management interface through a standard Web browser.
Cisco AVVID Wizards use just a few user inputs to automatically configure the switch to optimally handle different types of traffic: voice, video, multicast, and/or high-priority data.
A security wizard is provided to restrict unauthorized access to servers and networks, and restrict certain applications on the network.
Cisco CMS Software allows the user to manage up to 16 inter-connected Cisco Catalyst 3550, 2950, 3500 XL, 2900 XL, 2900 LRE XL, and 1900 switches through a single IP address, without the limitation of being physically located in the same wiring closet. Full backward compatibility ensures any combination of the above switches can be managed with a Cisco Catalyst 3550 switch.
The cluster software upgrade feature allows the user to automatically upgrade the system software on a group of Cisco Catalyst 3550, 2950, 3500 XL, 2900 XL, 2900 LRE XL, and 1900 switches.
Cisco Cluster Management Suite Software has been extended to include multilayer feature configurations such as Routing Protocols, ACLs, and QoS parameters.
Clustering now supports member discovery and cluster creation across a single Catalyst 3550 routed hop, enabling the entire LAN to be managed in a single web interface (and with a single IP address if desired).
Cisco Cluster Management Suite Guide Mode assists users in the configuration of powerful advanced features by providing step-by-step instructions.
Cisco Cluster Management Suite provides enhanced online help for context-sensitive assistance.
Easy-to-use graphical interface provides both a topology map and front panel view of the cluster.
Multi-device and multi-port configuration capabilities allow network administrators to save time by configuring features across multiple switches and ports simultaneously.
One-click software upgrades can be performed across the entire cluster simultaneously, and configuration cloning enables rapid deployment of networks.
Ability to launch the web-based management for a Cisco Aironet Wireless Access Point by simply clicking on its icon in the topology map.
User-personalized interface allows users to modify polling intervals, table views, and other settings within CMS and retain these settings the next time they use CMS.
Alarm notification provides automated email notification of network errors and alarm thresholds.
A troubleshooting toolbox, including L2 and L3 traceroute and Ping, helps administrators find network problems quickly.
Cisco AVVID Wizards use just a few user inputs to automatically configure the switch to optimally handle different types of traffic: voice, video, multicast, and/or high-priority data.
A security wizard is provided to restrict unauthorized access to servers and networks, and restrict certain applications on the network.
Cisco CMS Software allows the user to manage up to 16 inter-connected Cisco Catalyst 3550, 2950, 3500 XL, 2900 XL, 2900 LRE XL, and 1900 switches through a single IP address, without the limitation of being physically located in the same wiring closet. Full backward compatibility ensures any combination of the above switches can be managed with a Cisco Catalyst 3550 switch.
The cluster software upgrade feature allows the user to automatically upgrade the system software on a group of Cisco Catalyst 3550, 2950, 3500 XL, 2900 XL, 2900 LRE XL, and 1900 switches.
Cisco Cluster Management Suite Software has been extended to include multilayer feature configurations such as Routing Protocols, ACLs, and QoS parameters.
Clustering now supports member discovery and cluster creation across a single Catalyst 3550 routed hop, enabling the entire LAN to be managed in a single web interface (and with a single IP address if desired).
Cisco Cluster Management Suite Guide Mode assists users in the configuration of powerful advanced features by providing step-by-step instructions.
Cisco Cluster Management Suite provides enhanced online help for context-sensitive assistance.
Easy-to-use graphical interface provides both a topology map and front panel view of the cluster.
Multi-device and multi-port configuration capabilities allow network administrators to save time by configuring features across multiple switches and ports simultaneously.
One-click software upgrades can be performed across the entire cluster simultaneously, and configuration cloning enables rapid deployment of networks.
Ability to launch the web-based management for a Cisco Aironet Wireless Access Point by simply clicking on its icon in the topology map.
User-personalized interface allows users to modify polling intervals, table views, and other settings within CMS and retain these settings the next time they use CMS.
Alarm notification provides automated email notification of network errors and alarm thresholds.
A troubleshooting toolbox, including L2 and L3 traceroute and Ping, helps administrators find network problems quickly.
CiscoWorks Support
Manageable through CiscoWorks network management software on a per-port and per-switch basis providing a common management interface for Cisco routers, switches and hubs.
SNMP v1, v2c, v3 and Telnet interface support delivers comprehensive in-band management, and a CLI-based management console provides detailed out-of-band management.
Cisco Discovery Protocol (CDP) Versions 1 and 2 enable a CiscoWorks network management station to automatically discover the switch in a network topology.
Supported by the CiscoWorks LAN Management Solution (includes Resource Manager Essentials, Campus Manager, CiscoView, and Device Fault Manager); QoS Policy Manager (QPM); ACS; User Registration Tool (URT); CiscoWorks SNMS; Service Level Manager; and Internet Performance Monitor (IPM).
Superior Cisco IOS CLI support provides common user interface and command set with all Cisco Manageability routers and Cisco desktop switches.
Supported by the Cisco QPM solution for end-to-end QoS policies.
Cisco VTP supports dynamic VLANs and dynamic trunk configuration across all switches.
SNMP v1, v2c, v3 and Telnet interface support delivers comprehensive in-band management, and a CLI-based management console provides detailed out-of-band management.
Cisco Discovery Protocol (CDP) Versions 1 and 2 enable a CiscoWorks network management station to automatically discover the switch in a network topology.
Supported by the CiscoWorks LAN Management Solution (includes Resource Manager Essentials, Campus Manager, CiscoView, and Device Fault Manager); QoS Policy Manager (QPM); ACS; User Registration Tool (URT); CiscoWorks SNMS; Service Level Manager; and Internet Performance Monitor (IPM).
Superior Cisco IOS CLI support provides common user interface and command set with all Cisco Manageability routers and Cisco desktop switches.
Supported by the Cisco QPM solution for end-to-end QoS policies.
Cisco VTP supports dynamic VLANs and dynamic trunk configuration across all switches.
Performance
24 Gbps switching fabric (Catalyst 3550-12G and 3550-12T), 13.6 Gbps switching fabric (Catalyst 3550-48), 8.8 Gbps switching fabric (Catalyst 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
12 Gbps maximum forwarding bandwidth at Layer 2 and Layer 3 (Catalyst 3550-12G 3550-12T), 6.8 Gbps maximum forwarding bandwidth at Layer 2 and Layer 3 (Catalyst 3550-48), 4.4 Gbps maximum forwarding bandwidth at Layer 2 and Layer 3 (Catalyst 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
17.0 Mpps forwarding rate for 64-byte packets (Catalyst 3550-12G and 3550-12T), 10.1 Mpps forwarding rate for 64-byte packets (Catalyst 3550-48), 6.6 Mpps forwarding rate for 64-byte packets (Catalyst 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
4 MB memory architecture shared by all ports (Catalyst 3550-12G, 3550-12T, and 3550- 48), 2 MB memory architecture shared by all ports (Catalyst 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
64 MB DRAM and 16 MB Flash memory
Configurable up to 12,000 MAC addresses (Catalyst 3550-12G and 3550-12T), Configurable up to 8,000 MAC addresses (Catalyst 3550-48, 3550-24, 3550-24 PWR, 3550-24-DC, and3550-24-FX)
Configurable up to 24,000 unicast routes (Catalyst 3550-12G and 3550-12T), Configurable up to 16,000 unicast routes (Catalyst 3550-48, 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
Configurable up to 8,000 multicast routes (Catalyst 3550-12G and 3550-12T), Configurable up to 2,000 multicast routes (Catalyst 3550-48, 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
Configurable Maximum Transmission Unit (MTU) of up to 2,000 Bytes for bridging of MPLS tagged frames (Catalyst 3550-12G and 3550-12T), Configurable Maximum Transmission Unit (MTU) of up to 1,546 Bytes for bridging of MPLS tagged frames (Catalyst 3550-48, 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
12 Gbps maximum forwarding bandwidth at Layer 2 and Layer 3 (Catalyst 3550-12G 3550-12T), 6.8 Gbps maximum forwarding bandwidth at Layer 2 and Layer 3 (Catalyst 3550-48), 4.4 Gbps maximum forwarding bandwidth at Layer 2 and Layer 3 (Catalyst 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
17.0 Mpps forwarding rate for 64-byte packets (Catalyst 3550-12G and 3550-12T), 10.1 Mpps forwarding rate for 64-byte packets (Catalyst 3550-48), 6.6 Mpps forwarding rate for 64-byte packets (Catalyst 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
4 MB memory architecture shared by all ports (Catalyst 3550-12G, 3550-12T, and 3550- 48), 2 MB memory architecture shared by all ports (Catalyst 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
64 MB DRAM and 16 MB Flash memory
Configurable up to 12,000 MAC addresses (Catalyst 3550-12G and 3550-12T), Configurable up to 8,000 MAC addresses (Catalyst 3550-48, 3550-24, 3550-24 PWR, 3550-24-DC, and3550-24-FX)
Configurable up to 24,000 unicast routes (Catalyst 3550-12G and 3550-12T), Configurable up to 16,000 unicast routes (Catalyst 3550-48, 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
Configurable up to 8,000 multicast routes (Catalyst 3550-12G and 3550-12T), Configurable up to 2,000 multicast routes (Catalyst 3550-48, 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
Configurable Maximum Transmission Unit (MTU) of up to 2,000 Bytes for bridging of MPLS tagged frames (Catalyst 3550-12G and 3550-12T), Configurable Maximum Transmission Unit (MTU) of up to 1,546 Bytes for bridging of MPLS tagged frames (Catalyst 3550-48, 3550-24, 3550-24 PWR, 3550-24-DC, and 3550-24-FX)
Management
BRIDGE-MIB
CISCO-BULK-FILE-MIB
CISCO-CDP-MIB
CISCO-CLUSTER-MIB
CISCO-CONFIG-COPY-MIB
CISCO-CONFIG-MAN-MIB
CISCO-ENVMON-MIB
CISCO-FLASH-MIB
CISCO-FTP-CLIENT-MIB
CISCO-HSRP-EXT-MIB
CISCO-HSRP-MIB
CISCO-IGMP-FILTER-MIB
CISCO-IMAGE-MIB
CISCO-IPMROUTE-MIB
CISCO-MAC-NOTIFICATION-MIB
CISCO-MEMORY-POOL-MIB
CISCO-PAGP-MIB
CISCO-PORT-QOS-MIB
CISCO-PROCESS-MIB
CISCO-RTTMON-MIB
CISCO-STACKMAKER-MIB
CISCO-STACK-MIB
CISCO-STP-EXTENSIONS-MIB
CISCO-SYSLOG-MIB
CISCO-TCP-MIB
CISCO-VLAN-IFTABLE-RELATIONSHIP-MIB
CISCO-VLAN-MEMBERSHIP-MIB
CISCO-VTP-MIB
ENTITY-MIB
IF-MIB
IGMP-MIB
IPMROUTE-MIBL2/L3 INTERFACE MIB
OLD-CISCO-CHASSIS-MIB
OLD-CISCO-SYSTEM-MIB
OLD-CISCO-TS-MIB
OSPF-MIB (RFC 1253)
PIM-MIB
RFC1213-MIB
RMON2-MIB
SNMPv2-MIB
TCP-MIB
UDP-MIB
CISCO-BULK-FILE-MIB
CISCO-CDP-MIB
CISCO-CLUSTER-MIB
CISCO-CONFIG-COPY-MIB
CISCO-CONFIG-MAN-MIB
CISCO-ENVMON-MIB
CISCO-FLASH-MIB
CISCO-FTP-CLIENT-MIB
CISCO-HSRP-EXT-MIB
CISCO-HSRP-MIB
CISCO-IGMP-FILTER-MIB
CISCO-IMAGE-MIB
CISCO-IPMROUTE-MIB
CISCO-MAC-NOTIFICATION-MIB
CISCO-MEMORY-POOL-MIB
CISCO-PAGP-MIB
CISCO-PORT-QOS-MIB
CISCO-PROCESS-MIB
CISCO-RTTMON-MIB
CISCO-STACKMAKER-MIB
CISCO-STACK-MIB
CISCO-STP-EXTENSIONS-MIB
CISCO-SYSLOG-MIB
CISCO-TCP-MIB
CISCO-VLAN-IFTABLE-RELATIONSHIP-MIB
CISCO-VLAN-MEMBERSHIP-MIB
CISCO-VTP-MIB
ENTITY-MIB
IF-MIB
IGMP-MIB
IPMROUTE-MIBL2/L3 INTERFACE MIB
OLD-CISCO-CHASSIS-MIB
OLD-CISCO-SYSTEM-MIB
OLD-CISCO-TS-MIB
OSPF-MIB (RFC 1253)
PIM-MIB
RFC1213-MIB
RMON2-MIB
SNMPv2-MIB
TCP-MIB
UDP-MIB
Standards
IEEE 802.1x
IEEE 802.1w
IEEE 802.1s
IEEE 802.3x full duplex on 10BASE-T, 100BASE-TX, and 1000BASE-T ports
IEEE 802.1D Spanning-Tree Protocol
IEEE 802.1p CoS Prioritization
IEEE 802.1Q VLAN
IEEE 802.3ad
IEEE 802.3 10BASE-T specification
IEEE 802.3u 100BASE-TX specification
IEEE 802.3ab 1000BASE-T specification
IEEE 802.3z 1000BASE-X specification
1000BASE-X (GBIC)
1000BASE-SX
1000BASE-LX/LH
1000BASE-ZX
1000BASE-CWDM GBIC 1470nm
1000BASE-CWDM GBIC 1490nm
1000BASE-CWDM GBIC 1510nm
1000BASE-CWDM GBIC 1530nm
1000BASE-CWDM GBIC 1550nm
1000BASE-CWDM GBIC 1570nm
1000BASE-CWDM GBIC 1590nm
1000BASE-CWDM GBIC 1610nm
RMON I and II standards
SNMPv1, SNMPv2c, SNMPv3
IEEE 802.1w
IEEE 802.1s
IEEE 802.3x full duplex on 10BASE-T, 100BASE-TX, and 1000BASE-T ports
IEEE 802.1D Spanning-Tree Protocol
IEEE 802.1p CoS Prioritization
IEEE 802.1Q VLAN
IEEE 802.3ad
IEEE 802.3 10BASE-T specification
IEEE 802.3u 100BASE-TX specification
IEEE 802.3ab 1000BASE-T specification
IEEE 802.3z 1000BASE-X specification
1000BASE-X (GBIC)
1000BASE-SX
1000BASE-LX/LH
1000BASE-ZX
1000BASE-CWDM GBIC 1470nm
1000BASE-CWDM GBIC 1490nm
1000BASE-CWDM GBIC 1510nm
1000BASE-CWDM GBIC 1530nm
1000BASE-CWDM GBIC 1550nm
1000BASE-CWDM GBIC 1570nm
1000BASE-CWDM GBIC 1590nm
1000BASE-CWDM GBIC 1610nm
RMON I and II standards
SNMPv1, SNMPv2c, SNMPv3
Y2K
Y2K compliant
Connectors and Cabling
10BASE-T ports: RJ-45 connectors; two-pair Category 3, 4, or 5 unshielded twisted-pair (UTP) cabling
100BASE-TX ports: RJ-45 connectors; two-pair Category 5 UTP cabling
1000BASE-T ports: RJ-45; two-pair Category 5 UTP cabling
1000BASE-T GBIC-based ports: RJ-45 connectors; two-pair Category 5 UTP cabling
1000BASE-SX, -LX/LH, -ZX, and CWDM GBIC-based ports: SC fiber connectors, single-mode or multimode fiber
Cisco GigaStack GBIC ports: copper-based Cisco GigaStack cabling
Management console port: 8-pin RJ-45 connector, RJ-45-to-RJ-45 rollover cable with RJ-45-to-DB9 adapter for PC connections; for terminal connections, use RJ-45-to-DB25 female data-terminal-equipment (DTE) adapter (can be ordered separately from Cisco, part number ACS-DSBUASYN=)
100BASE-TX ports: RJ-45 connectors; two-pair Category 5 UTP cabling
1000BASE-T ports: RJ-45; two-pair Category 5 UTP cabling
1000BASE-T GBIC-based ports: RJ-45 connectors; two-pair Category 5 UTP cabling
1000BASE-SX, -LX/LH, -ZX, and CWDM GBIC-based ports: SC fiber connectors, single-mode or multimode fiber
Cisco GigaStack GBIC ports: copper-based Cisco GigaStack cabling
Management console port: 8-pin RJ-45 connector, RJ-45-to-RJ-45 rollover cable with RJ-45-to-DB9 adapter for PC connections; for terminal connections, use RJ-45-to-DB25 female data-terminal-equipment (DTE) adapter (can be ordered separately from Cisco, part number ACS-DSBUASYN=)
Power Connectors
Customers can provide power to a switch by using either the internal power supply or the Cisco RPS. The RPS 300 is compatible with all Catalyst 3550 models except the 3550-24-DC and 3550-24 PWR. The RPS 675 is compatible with all Catalyst 3550 models except the 3550-24-DC. The connectors are located at the back of the switch
Internal Power Supply Connector
The internal power supply is an auto-ranging unit
The internal power supply supports input voltages between 100 and 240 VAC
Use the supplied AC power cord to connect the AC power connector to an AC power outlet
Cisco RPS 675 Connector
The connector offers connection for an optional Cisco RPS 675 that uses AC input and supplies DC output to the switch
The connector offers a 675-watt redundant power system that can support six external network devices and provides power to one failed device at a time
The connector automatically senses when the internal power supply of a connected device fails and provides power to the failed device, preventing loss of network traffic
Attach only the Cisco RPS 675 (model PWR675-AC-RPS-NI=) to the redundant power supply receptacle with this connector. See above for Catalyst 3550 RPS compatibility
Cisco RPS 300 Connector
The connector offers connection for an optional Cisco RPS 300 that uses AC input and supplies DC output to the switch
The connector offers a 300-watt redundant power system that can support six external network devices and provides power to one failed device at a time
The connector automatically senses when the internal power supply of a connected device fails and provides power to the failed device, preventing loss of network traffic
Attach only the Cisco RPS 300 (model PWR300-AC-RPS-N1) to the redundant power supply receptacle with this connector. See above for Catalyst 3550 RPS compatibility
Internal Power Supply Connector
The internal power supply is an auto-ranging unit
The internal power supply supports input voltages between 100 and 240 VAC
Use the supplied AC power cord to connect the AC power connector to an AC power outlet
Cisco RPS 675 Connector
The connector offers connection for an optional Cisco RPS 675 that uses AC input and supplies DC output to the switch
The connector offers a 675-watt redundant power system that can support six external network devices and provides power to one failed device at a time
The connector automatically senses when the internal power supply of a connected device fails and provides power to the failed device, preventing loss of network traffic
Attach only the Cisco RPS 675 (model PWR675-AC-RPS-NI=) to the redundant power supply receptacle with this connector. See above for Catalyst 3550 RPS compatibility
Cisco RPS 300 Connector
The connector offers connection for an optional Cisco RPS 300 that uses AC input and supplies DC output to the switch
The connector offers a 300-watt redundant power system that can support six external network devices and provides power to one failed device at a time
The connector automatically senses when the internal power supply of a connected device fails and provides power to the failed device, preventing loss of network traffic
Attach only the Cisco RPS 300 (model PWR300-AC-RPS-N1) to the redundant power supply receptacle with this connector. See above for Catalyst 3550 RPS compatibility
Indicators
Per-port status LEDs: link integrity, disabled, activity, speed, and full-duplex indications
System status LEDs: system, RPS, and bandwidth utilization indications
System status LEDs: system, RPS, and bandwidth utilization indications
Dimensions and Weight (H x W x D)
2.63 x 17.5 x 15.9 in. (6.7 x 44.5 x 40.4 cm) (Catalyst 3550-12G and 3550-12T)
1.75 x 17.5 x 17.4 in (4.45 x 44.5 x 44 cm) (Catalyst 3550-24 PWR)
1.75 x 17.5 x 14.4 in. (4.45 x 44.5 x 36.6 cm) (Catalyst 3550-24 and 3550-24-DC)
1.75 x 17.5 x 16.3 in. (4.45 x 44.5 x 41.3 cm) (Catalyst 3550-24-FX and 3550-48)
1.5 RU high (Catalyst 3550-12G and 3550-12T)
1.0 RU high (Catalyst 3550-48 and 3550-24, 3550-24 PWR, 3550-24-DC and 3550-24-FX)
16 lb (7.3 kg) (Catalyst 3550-12G and 3550-12T)
14 lb (6.35 kg) (Catalyst 3550-24 PWR)
11 lb (5.0 kg) (Catalyst 3550-24 and 3550-24-DC)
12 lb (5.5 kg) (Catalyst 3550-24-FX)
13 lb (5.9 kg) (Catalyst 3550-48)
1.75 x 17.5 x 17.4 in (4.45 x 44.5 x 44 cm) (Catalyst 3550-24 PWR)
1.75 x 17.5 x 14.4 in. (4.45 x 44.5 x 36.6 cm) (Catalyst 3550-24 and 3550-24-DC)
1.75 x 17.5 x 16.3 in. (4.45 x 44.5 x 41.3 cm) (Catalyst 3550-24-FX and 3550-48)
1.5 RU high (Catalyst 3550-12G and 3550-12T)
1.0 RU high (Catalyst 3550-48 and 3550-24, 3550-24 PWR, 3550-24-DC and 3550-24-FX)
16 lb (7.3 kg) (Catalyst 3550-12G and 3550-12T)
14 lb (6.35 kg) (Catalyst 3550-24 PWR)
11 lb (5.0 kg) (Catalyst 3550-24 and 3550-24-DC)
12 lb (5.5 kg) (Catalyst 3550-24-FX)
13 lb (5.9 kg) (Catalyst 3550-48)
Environmental Ranges
Operating temperature: 32° to 113°F (0° to 45°C)
Storage temperature: -13° to 158°F (-25° to 70°C)
Operating relative humidity: 10 to 85% (non-condensing)
Operating altitude: Up to 10,000 ft (3,049 m)
Storage altitude: Up to 15,000 ft (4,573 m)
Storage temperature: -13° to 158°F (-25° to 70°C)
Operating relative humidity: 10 to 85% (non-condensing)
Operating altitude: Up to 10,000 ft (3,049 m)
Storage altitude: Up to 15,000 ft (4,573 m)
Power Requirements
Power consumption: 190 W (maximum), 650 BTUs per hour (Catalyst 3550-12G and 3550-12T); 525W (maximum), 1790 BTUs per hour (Catalyst 3550-24 PWR); 65 W (maximum), 222 BTUs per hour (Catalyst 3550-24); 110 W (maximum), 375 BTUs per hour (Catalyst 3550-48); 72 W (maximum), 250 BTUs per hour (Catalyst3550-24-DC); 85 W (maximum), 290 BTUs per hour (Catalyst 3550-24-FX)
AC input voltage/frequency: 100 to 127/200 to 240 VAC (auto-ranging), 50 to 60 Hz
DC Input Voltages
RPS input +12V @ 13A (Catalyst 3550-12G, 3550-12T, and 3550-48); +12V @ 8.3A (Catalyst 3550-24 and 3550-24-FX); +12V @ 7.5A and – 48V @ 7.8A (Catalyst 3550-24 PWR)
DC input for 3550-24-DC: -36 to 72VDC @ 2A
AC input voltage/frequency: 100 to 127/200 to 240 VAC (auto-ranging), 50 to 60 Hz
DC Input Voltages
RPS input +12V @ 13A (Catalyst 3550-12G, 3550-12T, and 3550-48); +12V @ 8.3A (Catalyst 3550-24 and 3550-24-FX); +12V @ 7.5A and – 48V @ 7.8A (Catalyst 3550-24 PWR)
DC input for 3550-24-DC: -36 to 72VDC @ 2A
Acoustic Noise
ISO 7770, bystander position operating to an ambient temperature of 30 degrees Celsius:
Catalyst 3550-12G and 3550-12T: 58 dBa
Catalyst 3550-24 and 3550-24-DC: 48 dBa
Catalyst 3550-48 and 3550-24-FX: 46 dBa
Catalyst 3550-24 PWR: 47 dBa
Catalyst 3550-12G and 3550-12T: 58 dBa
Catalyst 3550-24 and 3550-24-DC: 48 dBa
Catalyst 3550-48 and 3550-24-FX: 46 dBa
Catalyst 3550-24 PWR: 47 dBa
Why Buy Refurbished?
Product Details
We provide refurbished Cisco kit, finished to exceptional standards: rigorously tested, immaculately packed and backed by the best customer service you'll find anywhere.
Committed to Cisco
Go Communications specialises in Refurbished Cisco Systems equipment. We can source virtually any Cisco part. Through our SAMEasNEW refurbished programme, we can even provide high quality, pre-owned parts that Cisco no longer makes - reducing your need to upgrade end-of-life equipment.
Committed to quality
Go Communications is committed to the highest levels of reliability and quality. Our state-of-the-art Cisco Certified Internetwork Expert (CCIE) development facility 'soak tests' every device and component we sell: only if it meets our exceptionally high standards can it be accepted onto our market-leading two-year warranty programme.
Committed to service
We believe in honouring our commitments, providing outstanding quality and delivering fantastic customer service at prices which are very hard to beat. As a result we have built a reputation as a trusted, reliable and knowledgeable source of high quality refurbished Cisco components.
Experience
Everyone at Go Communications has been involved with Cisco Systems products for more than fifteen years. That's not just those in our sales and engineering teams, but also our purchasing, logistics and even finance departments.
Fast Delivery
We believe we are one of the UK's fastest and most efficient Cisco delivery services. For instance, 'in stock' items can be delivered within the M25 corridor within two hours, or to Scotland and Wales within eight hours.
Two Year Warranty
We offer an industry-leading two year warranty* on all of our refurbished products. This includes overnight advanced replacement and ongoing technical support from our CCIE and CCNA certified technicians. We aim to replace all equipment under warranty within 24 hours. If the item isn't in stock, please allow up to 72 hours. If a replacement isn't available in time, we may offer a temporary solution free of charge. * Retail end-user clients only.
Terms and conditions of sale and purchase
Please follow the links for more details on our Terms of Purchase and Terms of Sale. For more information about our products, please call 01279 408 777 or email us at: sales@gocomsys.com.