Cisco SG300-28PP 28-Port Gigabit PoE+ Managed Switch *Used* For Sale

Cisco SG300-28PP 28-Port Gigabit PoE+ Managed Switch *Used*


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Cisco SG300-28PP 28-Port Gigabit PoE+ Managed Switch *Used*:
$160

This item is used, in working condition and being sold as is.
Power cable not includedFew minor scuff marks but barely noticeable
Priced to move!
Full specs:Performance41.67 Mp/s (64-byte packets)Switching Capacity56.0 Gb/sLayer 2 SwitchingSpanning Tree Protocol: Standard 802.1d Spanning Tree support
Fast convergence using 802.1w (Rapid Spanning Tree), enabled by default
Multiple Spanning Tree instances using 802.1s

Port Grouping: Support for IEEE 802.3ad Link Aggregation Control Protocol
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)
Private VLAN Edge, also known as protected ports, with multiple uplinks
Guest VLAN

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

Q-in-Q VLAN: VLANs transparently cross a service provider network while isolating traffic among customers

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

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

Internet Group Management Protocol 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

Up to 32 static routes and up to 32 IP interfaces


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

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

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

IEEE 802.1X (Authenticator Role): 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

STP Bridge Protocol Data Unit Guard: A security mechanism to protect the network from invalid configurations.
A port enabled for BPDU Guard is shut down if a BPDU message is received on that port

STP Root Guard: This prevents edge devices not in the network administrator's control from becoming Spanning Tree

DHCP Snooping: Filters out DHCP messages with unregistered IP addresses and/or from unexpected or untrusted interfaces. This prevents rogue devices from behaving as a DHCP Server

IP Source Guard (IPSG): When IP Source Guard is enabled at a port, the switch filters out IP packets received from the port if the source IP addresses of the packets have not been statically configured or dynamically learned from DHCP snooping. This prevents IP Address Spoofing

Dynamic ARP Inspection (DAI): The switch discards ARP packets from a port if there are no static or dynamic IP/MAC bindings or if there is a discrepancy between the source or destination address in the ARP packet. This prevents man-in-the-middle attacks


Secure Core Technology: Ensures that the switch will receive and process management and protocol traffic no matter how much traffic is received

Secure Sensitive Data (SSD): A mechanism to manage sensitive data (such as passwords, keys, etc.) securely on the switch, populating this data to other devices, and secure autoconfig. Access to view the sensitive data as plaintext or encrypted is provided according to the user configured access level and the access method of the user

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


Storm Control: Broadcast, multicast, and unknown unicast

DoS Prevention: DoS attack prevention


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/IP precedence, TCP/ UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol packets, IGMP packets, TCP flagQuality of Service (QoS)Priority Levels: 4 hardware queues

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/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 basedStandardsIEEE 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 3416IPv6IPv6: IPv6 host mode
IPv6 over Ethernet
Dual IPv6/IPv4 stack
IPv6 neighbor and router discovery
IPv6 stateless address auto-configuration
Path maximum transmission unit discovery
ICMP version 6
IPv6 over IPv4 network with Intra-Site Automatic Tunnel Addressing Protocol support

IPv6 QoS: Prioritize IPv6 packets in hardware

IPv6 ACL: Drop or rate, limit IPv6 packets in hardware


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

Remote Monitoring: 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

Dynamic Host Configuration Protocol (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), DHCP relay, and hostname

Secure Copy (SCP): Securely transfer files to and from the switch




Auto Smartports: Applies the intelligence delivered through the Smartport roles and applies it automatically to the port based on the devices discovered over CDP or LLDP-MED. This facilitates zero touch deployments Textview CLI: Scriptable command-line interface. A full CLI as well as a menu-based CLI is supported

Cloud Services: Support for Cisco Small Business FindIT Network Discovery Utility


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)


Login Banner: Configurable multiple banners for web as well as CLIPower EfficiencyEnergy 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 Length Detection: Adjusts the signal strength based on the cable length. It reduces the power consumption for cables shorter than 10 m

Disable Port LEDs: LEDs can be manually turned off to save on EnergyGeneral FeaturesJumbo Frames: Frame sizes up to 9 KB supported on 10/100/1000 Gigabit interfaces

MAC Table: Up to 16K (16384) MAC addressesDiscoveryBonjour: Bonjour locates devices such as printers, other computers and the services that those devices offer on a local network using multicast Domain Name System (mDNS) service records

Link Layer Discovery Protocol (802.1ab) with LLDP-MED Extensions: LLDP allows the switch to advertise its identification, configuration and capabilities to neighboring devices that store the data in a MIB. LLDP-MED is an enhancement to LLDP that adds the extensions needed for IP phones

Cisco Discovery Protocol (CDP): CDP is a proprietary data link layer and network layer protocol which is used to share information about other directly connected Cisco equipment, such as the operating system version and IP addressPoE FeaturesIEEE 802.3af PoE delivered over any of the RJ-45 ports within the listed power budgets
Power Dedicated to PoE: 180W (PoE+ supported)
Number of Ports That Support PoE: 24Power ConsumptionPower Savings Mode: Energy Detect
System Power Consumption: 110 V, 31.9 W 220 V, 33.0 W
Power Consumption Case: 110 V, 218.57 W 220 V, 213.35 W
Heat Dissipation: 727.98 BTU/hrPortsTotal System Ports: 28 x Gigabit Ethernet
RJ-45 Ports: 26 x Gigabit Ethernet
Combo Ports (RJ-45 + SFP): 2 x Gigabit Ethernet ComboButtonsReset buttonCabling TypeUnshielded twisted pair Category 5 or better for 10BASE-T/100BASE-TX; UTP Category 5 Ethernet or better for 1000BASE-TLEDsSystem, Link/Act, PoE, Speed, LED power saving optionFlash16 MBCPU128 MBPacket Buffer Memory8 MbPower Supply100 to 240 V, 47 to 63 Hz, internal, universalFan2 PiecesAcoustic Noise40.4 dBMTBFAt 113°F (45°C): 310,755 hoursCertificationsUL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class AEnvironmental RequirementsOperating Temperature: 32 to 113°F (0 to 45°C)
Storage Temperature: -4 to +158°F (-20 to +70°C)
Storage Relative Humidity: 10 to 90% (non-condensing)Minimum RequirementsWeb Browser: Mozilla Firefox version 8 or later; Microsoft Internet Explorer version 7 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


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Documentation

  • AIX Local Security Checks
  • Backdoors
  • CentOS Local Security Checks
  • CGI abuses
  • CISCO
  • Databases
  • Debian Local Security Checks
  • Default Unix Accounts
  • Denial of Service
  • Fedora Local Security Checks
  • Finger abuses
  • Firewalls
  • FreeBSD Local Security Checks