Cisco SG300-28P 28-port Gigabit PoE Swit

Cisco SG300-28P 28-port Gigabit PoE Swit

Availability: Out of stock

Cisco SG300-28P SRW2024P-K9-NA 28-port Gigabit PoE Managed Switch
  • Item Part#: SRW2024P-K9--R
  • Mfg Part#: SRW2024P-K9-NA
  • Manufacturer: CISCO
  • Warranty: 90 Days
  • Condition: Refurbished
  • Free Shipping: Yes
$269.99
Description

Details

Additional Information:

 

This Cisco Managed Switch is in great working condition.

The unit has been fully tested and is completely functional.

 

Note:

  •  Missing rack mount kit.

 

Included in the Box:

Cisco Managed Switch, power cord, console cable, documentation, soft CD

 

Packaging:

The item is securely packaged in Original box.

 

Brand: Cisco

Model: SRW2024P-K9-NA

 

Features:

  • A stellar addition to your business, the SG300-28P Managed 28-Port 10/100/1000 PoE Gigabit Ethernet Switch from Cisco is a feature-packed, 28-Port Gigabit Ethernet switch for your network. It has 26 Gigabit Ethernet (RJ-45) ports. Because these ports feature Power-over-Ethernet, they can distribute power to external devices connected to the switch, such as Access Points, IP cameras, and external storage drives. Beyond these ports, this switch also features 2 Gigabit Ethernet Combo (RJ-45 + SFP / mini-GBIC) ports, which can operate as either SFP / mini-GBIC Ethernet or as standard RJ-45 Ethernet gigabit connections. With these specific ports, you can connect gigabit or fiber optic devices to the switch.

 

Specifications:

 

Performance
Standards IEEE 802.3 10BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet, IEEE 802.3ab 1000BASE-T Gigabit Ethernet, IEEE 802.3ad LACP, IEEE 802.3z Gigabit Ethernet, IEEE 802.3x Flow Control, IEEE 802.1D (STP, GARP, and GVRP),IEEE 802.1Q/p VLAN, IEEE 802.1w RSTP, IEEE 802.1s Multiple STP, IEEE 802.1X Port Access Authentication, IEEE 802.3af, IEEE 802.3at, RFC 768, RFC 783, RFC 791, RFC 792, RFC 793, RFC 813, RFC 879, RFC 896, RFC 826, RFC 854, RFC 855, RFC 856, RFC 858, RFC 894, RFC 919, RFC 922, RFC 920, RFC 950, RFC 951, RFC 1042, RFC 1071, RFC 1123, RFC 1141, RFC 1155, RFC 1157, RFC 1350, RFC 1533, RFC 1541, RFC 1542, RFC 1624, RFC 1700, RFC 1867, RFC 2030, RFC 2616, RFC 2131, RFC 2132, RFC 3164, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC 2576, RFC 4330, RFC 1213, RFC 1215, RFC 1286, RFC 1442, RFC 1451, RFC 1493, RFC 1573, RFC 1643, RFC 1757, RFC 1907, RFC 2011, RFC 2012, RFC 2013, RFC 2233, RFC 2618, RFC 2665, RFC 2666, RFC 2674, RFC 2737, RFC 2819, RFC 2863, RFC 1157, RFC 1493, RFC 1215, RFC 3416
Ports 26x  RJ-45 Gigabit Ethernet
2x  RJ-45 + SFP Gigabit Ethernet Combo Ports
PoE 26x  RJ-45 Gigabit Ethernet
Total Power Dedicated: 180 W
Max Power Dedicated per port: 15.4 W
Speed Switching Capacity in Gigabits per Second (Gbps): 56
Capacity in Millions of Packets per Second (mpps) with each packet being 64-bytes: 41.67
MAC Address Table Size Up to 8000 MAC addresses
Frame Sizes Jumbo Frames: up to 10 KB supported on 10/100 and Gigabit interfaces
Switching Method Managed
Layer 2 Switching Spanning Tree Protocol (STP):
Standard 802.1d Spanning Tree support
Fast convergence using 802.1w (Rapid Spanning Tree [RSTP]), enabled by default
Multiple Spanning Tree instances using 802.1s (MSTP)

Port grouping:
Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)
Up to 8 groups
Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation

VLAN:
Support for up to 256 VLANs simultaneously (out of 4096 VLAN IDs)
Port-based and 802.1Q tag-based VLANs
MAC-based VLAN
Management VLAN
Private VLAN Edge (PVE), also known as protected ports, with multiple uplinks
Guest VLAN
Unauthenticated VLAN

Voice Lan:
Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS

Generic VLAN Registration Protocol (GVRP)/Generic Attribute Registration Protocol (GARP):
Protocols for automatically propagating and configuring VLANs in a bridged domain

Dynamic Host Configuration Protocol (DHCP) Relay at Layer 2:
Relay of DHCP traffic to DHCP server in different VLAN. Works with DHCP Option 82

Internet Group Management Protocol (IGMP) versions 1, 2, and 3 snooping:
IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 256 multicast groups (source-specific multicasting is also supported)

IGMP Querier
IGMP querier is used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router

Head-of-line (HOL) blocking:
HOL blocking prevention
Layer 3 IPv4 Routing:
Wirespeed routing of IPv4 packets
Up to 32 static routes and up to 32 IP interfaces

Classless Inter-Domain Routing (CIDR):
Support for CIDR

DHCP relay at Layer 3:
Relay of DHCP traffic across IP domains

User Datagram Protocol (UDP) relay:
Relay of broadcast information across Layer 3 domains for application discovery or relaying of BootP/DHCP packets
Security Secure Shell Protocol (SSH):
SSH secures Telnet traffic to and from the switch; SSH v1 and v2 are supported

Secure Sockets Layer (SSL):
SSL support: Encrypts all HTTPS traffic, allowing highly secure access to the browser-based management GUI in the switch

IEEE 802.1X (Authenticator role):
802.1X: RADIUS authentication and accounting, MD5 hash; guest VLAN; unauthenticated VLAN, single/multiple host mode and single/multiple sessions
Supports time-based 802.1X
Dynamic VLAN assignment

Layer 3 isolation:
Allow / disallow routing between IP subnets or directly connected IP networks

Layer 2 isolation Private VLAN Edge (PVE) with community VLAN:
PVE (also known as protected ports) provides Layer 2 isolation between devices in the same VLAN, supports multiple uplinks

Port security:
Locks MAC addresses to ports, and limits the number of learned MAC addresses

RADIUS/TACACS+:
Supports RADIUS and TACACS authentication. Switch functions as a client

Storm control:
Broadcast, multicast, and unknown unicast

DoS prevention:
DoS attack prevention

Congestion avoidance:
A TCP congestion avoidance algorithm is required to minimize and prevent global TCP loss synchronization

ACLs:
Support for up to 512 rules
Drop or rate limit based on source and destination MAC, VLAN ID or IP address, protocol, port, differentiated services code point (DSCP)/IP precedence, TCP/ UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag
Quality of Service Priority Levels: 4 hardware queues

Scheduling:
Strict priority and weighted round-robin (WRR)
Queue assignment based on DSCP and class of service (802.1p/CoS)

Class of Service:
Port based; 802.1p VLAN priority based; IPv4/v6 IP precedence/type of service (ToS)/DSCP based; Differentiated Services (DiffServ); classification and re-marking ACLs, trusted QoS

Rate Limiting:
Ingress policer; egress shaping and rate control; per VLAN, per port, and flow based
IPv6 IPv6:
IPv6 host mode
IPv6 over Etheret
Dual IPv6/IPv4 stack
IPv6 neighbor and router discovery (ND)
IPv6 stateless address auto-configuration
Path maximum transmission unit (MTU) discovery
Duplicate address detection (DAD)
ICMP version 6
IPv6 over IPv4 network with Intra-Site Automatic Tunnel Addressing Protocol(ISATAP) support

IPv6 QoS
Prioritize IPv6 packets in hardware
IPv6 ACL
Drop or rate limit IPv6 packets in hardware

Multicast Listener Discovery (MLD) snooping
Deliver IPv6 multicast packets only to the required receivers

IPv6 applications
Web/SSL, Telnet server/SSH, ping, traceroute, Simple Network Time Protocol (SNTP), Trivial File Transfer Protocol (TFTP), SNMP, RADIUS, syslog, DNS client, protocol-based VLANs

IPv6 RFCs supported
RFC 2463 - ICMP version 6
RFC 3513 - IPv6 address architecture
RFC 4291 - IPv6 addressing architecture
RFC 2460 - IPv6 specification
RFC 2461 - Neighbor discovery for IPv6
RFC 2462 - IPv6 stateless address auto-configuration
RFC 1981 - Path MTU discovery
RFC 4007 - IPv6 scoped address architecture
RFC 3484 - Default address selection mechanism
RFC 4214 - ISATAP tunneling
RFC 4293 - MIB IPv6: Textual conventions and general group
RFC 3595 - Textual conventions for IPv6 flow label
Cable Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX; UTP Category 5 Ethernet or better for 1000 BASE-T
Buttons Reset button
LED System, Link/Act, PoE, Speed
Memory CPU: 128 MB
Flash: 16 MB
Buffer Packet Buffer: 4.0 Mb
Management Web user interface:
Built-in switch configuration utility for easy browser-based device configuration (HTTP/HTTPS). Supports configuration, system dashboard, system maintenance, and monitoring

Remote Monitoring (RMON):
Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis

IPv4 and IPv6 dual stack:
Coexistence of both protocol stacks to ease migration

Firmware upgrade:
• Web browser upgrade (HTTP/HTTPS) and TFTP
• Upgrade can be initiated through console port as well
• Dual images for resilient firmware upgrades

Port mirroring:
Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe. Up to 8 source ports can be mirrored to one destination port. A single session is supported

VLAN mirroring:
Traffic from a VLAN can be mirrored to a port for analysis with a network analyzer or RMON probe. Up to 8 source VLANs can be mirrored to one destination port. A single session is supported

DHCP (Options 66, 67, 82, 129, and 150):
DHCP Options facilitate tighter control from a central point (DHCP server) to obtain IP address, auto-configuration (with configuration file download), and DHCP relay

Text-editable config files:
Config files can be edited with a text editor and downloaded to another switch, facilitating easier mass deployment

Smartports:
Simplified configuration of QoS and security capabilities

Secure Copy:
Securely transfer files to and from the switch

Textview CLI:
Scriptable command-line interface

Cloud Services:
Support for Small Business Toolbar application

Localization:
Localization of GUI and documentation into multiple languages

Other management:
Traceroute; single IP management; HTTP/HTTPS; SSH; RADIUS; port mirroring; TFTP upgrade; DHCP client; BOOTP; SNTP; Xmodem upgrade; cable diagnostics; ping; syslog; Telnet client (SSH secure support)

SNMP: 
SNMP versions 1, 2c, and 3 with support for traps, and SNMP version 3 user-based security model (USM)

SNMP MIBS: Please consult the manufacturer's website for an extensive list of supported MIBS
Fan 2 pcs
Acoustic Noise 40.6 dB
MTBF 187334.9 hr @ 40 C
Power Save Mode Energy Detect:
Automatically turns off power off on Gigabit Ethernet RJ-45 port when detecting link down
Active mode is resumed without loss of any packets when the switch detects the link up

Cable Link Detection: Adjusts the signal strength based on the cable length. Reduces the power consumption for cables shorter than 10m
Certification UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
General
Form Factor 1U
System Requirements Minimum
Web browser: Mozilla Firefox version 2.5 or later; Microsoft Internet Explorer version 6 or later
Category 5 Ethernet network cable
TCP/IP, network adapter, and network operating system (such as Microsoft Windows, Linux, or Mac OS X) installed on each computer in the network
Environmental Requirements Operating Temperature: 32° to 104°F / 0° to 40°C
Storage Temperature: -4° to 158°F / -20° to 70°C
Operating Humidity: 10% to 90%, relative, noncondensing
Storage Humidity: 10% to 90%, relative, noncondensing
Power Requirements 100-240 V, 47-63 Hz, internal, universal
Power Consumption At most:
110 V = 235.1 W
220 V = 229.1 W

Heat Dissipation: 802.2 BTU / hr

Energy Detect, Short Reach
Dimensions (WxHxD) 17.3 x 1.45 x 10.1" (44 x 4.44 x 25.7 cm)
Weight Not specified by manufacturer

 

 

 

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