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Cisco SF250 48HP PoE Switch

Teknik Özellikler

Performance
Switching capacity and forwarding rate
All switches are wire-speed and nonblocking
Product Name
Capacity in mpps 
(64-byte packets)
Switching Capacity (Gbps)
SF250-48
13.10
17.6
SF250-48HP
13.10
17.6
SG250-10P 14.88 20.0
SG250-26 38.69 52.0
SG250-26HP 38.69 52.0
SG250-26P 38.69 52.0
Layer 2 Switching
Spanning Tree Protocol Standard 802.1d spanning tree support
Fast convergence using 802.1w (Rapid Spanning Tree [RSTP]), enabled by default
8 instances are supported
Multiple Spanning Tree instances using 802.1s (MSTP)
Port grouping/link aggregation Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)
Up to 4 groups
Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad LAG
VLAN Support for up to 256 active VLANs simultaneously
Port-based and 802.1Q tag-based VLANs
Management VLAN
Voice VLAN Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Auto voice capabilities deliver network-wide zero touch deployment of voice endpoints and call control devices.
IGMP (versions 1, 2, and 3) snooping Internet Group Management Protocol (IGMP) limits bandwidth-intensive multicast traffic to only the requesters; supports 1K multicast groups (source-specific multicasting is also supported)
HOL blocking Head-of-line (HOL) blocking.
Security
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) RADIUS authentication, MD5 hash, single/multiple host mode, and single/multiple sessions.
Secure Sensitive Data (SSD) A mechanism to manage sensitive data (such as passwords, keys, and so on) 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.
Port security Ability to lock source MAC addresses to ports and limit the number of learned MAC addresses.
RADIUS Supports RADIUS authentication for management access. Switch functions as a client.
Storm control Broadcast, multicast, and unknown unicast.
DoS prevention Denial-of-service (DOS) attack prevention
Quality of Service
Priority levels 4 hardware queues
Scheduling Strict Priority and weighted round-robin (WRR)
Class of service Port based; 802.1p VLAN priority based; IPv4/v6 IP precedence/ToS/DSCP based; DiffServ; trusted QoS Queue assignment based on differentiated services code point (DSCP) and class of service (802.1p/CoS)
Rate limiting Ingress policer, per VLAN, per port
Standards
Standards IEEE 802.3 10BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet, IEEE 802.3ab 1000BASE-T Gigabit Ethernet, IEEE 802.3ad Link Aggregation Control Protocol, IEEE 802.3z Gigabit Ethernet, IEEE 802.3x Flow Control, IEEE 802.3 ad LACP, IEEE 802.1D (STP), 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 920, RFC 922, RFC 950, RFC 951, RFC 1042, RFC 1071, RFC 1123, RFC 1141, RFC 1155, RFC 1157, RFC 1213, RFC 1215, RFC 1286, RFC 1350, RFC 1442, RFC 1451, RFC 1493, RFC 1533, RFC 1541, RFC 1542, RFC 1573, RFC 1624, RFC 1643, RFC 1700, RFC 1757, RFC 1867, RFC 1907, RFC 2011, RFC 2012, RFC 2013, RFC 2030, RFC 2131, RFC 2132, RFC 2233, RFC 2576, RFC 2616, RFC 2618, RFC 2665, RFC 2666, RFC 2674, RFC 2737, RFC 2819, RFC 2863, RFC 3164, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC 3416, RFC 4330
IPv6
IPv6 IPv6 host mode
IPv6 over Ethernet
Dual IPv6/IPv4 stack
IPv6 neighbor and router discovery (ND)
IPv6 stateless address autoconfiguration
Path maximum transmission unit (MTU) discovery
Duplicate address detection (DAD)
Internet Control Message Protocol (ICMP) version 6
IPv6 over IPv4 network with Intrasite Automatic Tunnel Addressing Protocol (ISATAP) support
USGv6 and IPv6 Gold Logo certified
IPv6 QoS Prioritize IPv6 packets in hardware
Multicast Listener Discovery (MLD v1/2) snooping Deliver IPv6 multicast packets only to the required receivers
IPv6 applications Web/SSL, Ping, Traceroute, Simple Network Time Protocol (SNTP), Trivial File Transfer Protocol (TFTP), Simple Network Management Protocol (SNMP), Remote Authentication Dial-In User Service (RADIUS), Syslog, DNS client, DHCP Client, DHCP Autoconfig
IPv6 RFC supported RFC 4443 (which obsoletes RFC 2463) - ICMPv6
RFC 4291 (which obsoletes RFC 3513) - IPv6 Address Architecture
RFC 4291 - IP Version 6 Addressing Architecture   
RFC 2460 - IPv6 Specification   
RFC 4861 (which obsoletes RFC 2461) - Neighbor Discovery for IPv6   
RFC 4862 (which obsoletes 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 5214 (which obsoletes RFC 4214) - ISATAP tunneling   
RFC 4293 - MIB IPv6: Textual Conventions and General Group   
RFC 3595 - Textual Conventions for IPv6 Flow Label   
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.   
SNMP SNMP versions 1, 2c, and 3 with support for traps, and SNMP version 3 user-based security model (USM)   
Standard MIBs                              lldp-MIB rfc2665-MIB  
lldpextdot1-MIB rfc2668-MIB  
lldpextdot3-MIB rfc2737-MIB  
lldpextmed-MIB rfc2925-MIB  
rfc2674-MIB rfc3621-MIB  
rfc2575-MIB rfc4668-MIB  
rfc2573-MIB rfc4670-MIB  
rfc2233-MIB trunk-MIB  
rfc2013-MIB tunnel-MIB  
rfc2012-MIB udp-MIB  
rfc2011-MIB draft-ietf-bridge-8021x-MIB  
RFC-1212 draft-ietf-bridge-rstpmib-04-MIB  
RFC-1215 draft-ietf-hubmib-etherif-mib-v3-00-MIB  
SNMPv2-CONF draft-ietf-syslog-device-MIB  
SNMPv2-TC ianaaddrfamnumbers-MIB  
p-bridge-MIB ianaifty-MIB  
q-bridge-MIB ianaprot-MIB  
rfc1389-MIB inet-address-MIB  
rfc1493-MIB ip-forward-MIB  
rfc1611-MIB ip-MIB  
rfc1612-MIB RFC1155-SMI  
rfc1850-MIB RFC1213-MIB  
rfc1907-MIB SNMPv2-MIB  
rfc2571-MIB SNMPv2-SMI  
rfc2572-MIB SNMPv2-TM  
rfc2574-MIB RMON-MIB  
rfc2576-MIB rfc1724-MIB  
rfc2613-MIB   dcb-raj-DCBX-MIB-1108-MIB  
rfc1213-MIB  
rfc1757-MIB  
Private MIBs CISCOSB-lldp-MIB CISCOSB-ip-MIB  
  CISCOSB-brgmulticast-MIB CISCOSB-iprouter-MIB  
  CISCOSB-bridgemibobjects-MIB CISCOSB-ipv6-MIB  
  CISCOSB-bonjour-MIB CISCOSB-mnginf-MIB  
  CISCOSB-dhcpcl-MIB CISCOSB-lcli-MIB  
  CISCOSB-MIB CISCOSB-localization-MIB  
  CISCOSB-wrandomtaildrop-MIB CISCOSB-mcmngr-MIB  
  CISCOSB-traceroute-MIB CISCOSB-mng-MIB  
  CISCOSB-telnet-MIB CISCOSB-physdescription-MIB  
  CISCOSB-stormctrl-MIB CISCOSB-PoE-MIB  
  CISCOSBssh-MIB CISCOSB-protectedport-MIB  
  CISCOSB-socket-MIB CISCOSB-rmon-MIB  
  CISCOSB-sntp-MIB CISCOSB-rs232-MIB  
  CISCOSB-smon-MIB CISCOSB-SecuritySuite-MIB  
  CISCOSB-phy-MIB CISCOSB-snmp-MIB  
  CISCOSB-multisessionterminal-MIB CISCOSB-specialbpdu-MIB  
  CISCOSB-mri-MIB CISCOSB-banner-MIB  
  CISCOSB-jumboframes-MIB CISCOSB-syslog-MIB  
  CISCOSB-gvrp-MIB CISCOSB-TcpSession-MIB  
  CISCOSB-endofmib-MIB CISCOSB-traps-MIB  
  CISCOSB-dot1x-MIB CISCOSB-trunk-MIB  
  CISCOSB-deviceparams-MIB CISCOSB-tuning-MIB  
  CISCOSB-cli-MIB CISCOSB-tunnel-MIB  
  CISCOSB-cdb-MIB CISCOSB-udp-MIB  
  CISCOSB-brgmacswitch-MIB CISCOSB-vlan-MIB  
  CISCOSB-3sw2swtables-MIB CISCOSB-ipstdacl-MIB  
  CISCOSB-smartPorts-MIB CISCOSB-eee-MIB  
  CISCOSB-tbi-MIB CISCOSB-ssl-MIB  
  CISCOSB-macbaseprio-MIB CISCOSB-digitalkeymanage-MIB  
  CISCOSB-env_mib-MIB CISCOSB-qosclimib-MIB  
  CISCOSB-policy-MIB CISCOSB-digitalkeymanage-MIB  
  CISCOSB-sensor-MIB CISCOSB-tbp-MIB  
  CISCOSB-aaa-MIB CISCOSMB-MIB  
  CISCOSB-application-MIB CISCOSB-secsd-MIB  
  CISCOSB-bridgesecurity-MIB CISCOSB-draft-ietf-entmib-sen  sor-MIB 
  CISCOSB-copy-MIB CISCOSB-draft-ietf-syslog-device-MIB  
  CISCOSB-CpuCounters-MIB CISCOSB-rfc2925-MIB  
  CISCOSB-Custom1BonjourService-MIB CISCO-SMI-MIB  
  CISCOSB-dhcp-MIB CISCOSB-DebugCapabilities-MIB  
  CISCOSB-dlf-MIB CISCOSB-CDP-MIB  
  CISCOSB-dnscl-MIB CISCOSB-vlanVoice-MIB  
  CISCOSB-embweb-MIB CISCOSB-EVENTS-MIB  
  CISCOSB-fft-MIB CISCOSB-sysmng-MIB  
  CISCOSB-file-MIB CISCOSB-sct-MIB  
  CISCOSB-greeneth-MIB CISCO-TC-MIB  
  CISCOSB-greeneth-MIB CISCO-VTP-MIB  
  CISCOSB-interfaces-MIB CISCO-CDP-MIB  
  CISCOSB-interfaces_recovery-MIB   
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 and SCP   
Port mirroring Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe. Up to 4 source ports can be mirrored to one destination port.   
VLAN mirroring Traffic from a VLAN can be mirrored to a port for analysis with a network analyzer or RMON probe. Up to 4 source VLANs can be mirrored to one destination port.   
DHCP (Options 12, 66, 67, 82, 129, and 150) DHCP options facilitate tighter control from a central point (DHCP server), to obtain IP address, autoconfiguration (with configuration file download), DHCP Relay, and host name.   
Autoconfiguration Enables secure mass deployment with protection of sensitive data   
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   
Auto Smartports Applies the intelligence delivered through the Smartport roles and applies it automatically to the port based on the devices discovered over Cisco Discovery Protocol or LLDP-MED. This facilitates zero-touch deployments.   
Cloud services Support for Cisco Active Advisor   
Localization Localization of GUI and documentation into multiple languages   
Login banner Configurable multiple banners for web as well as CLI   
Other management Traceroute; single IP management; HTTP/HTTPS; RADIUS; port mirroring; TFTP upgrade; DHCP client; Simple Network Time Protocol (SNTP); cable diagnostics; Ping; syslog; automatic time settings from Management Station.   
Power Efficiency    
Energy Detect Automatically turns power off on RJ-45 port when detecting link down. Active mode is resumed without loss of any packets when the switch detects the link is up.   
Cable length detection Adjusts the signal strength based on the cable length. Reduces the power consumption for shorter cables.   
EEE compliant (802.3az) Supports IEEE 802.3az on all copper Gigabit Ethernet ports.   
Disable port LEDs LEDs can be manually turned off to save on energy.   
General    
Jumbo frames Frame sizes up to 9K bytes. The default MTU is 2K bytes.   
MAC table 8K addresses.   
Discovery    
Bonjour The switch advertises itself using the Bonjour protocol.   
LLDP (802.1ab) with LLDP-MED extensions Link Layer Discovery Protocol (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) The switch advertises itself using the Cisco Discovery Protocol. It also learns the connected device and its characteristics using Cisco Discovery Protocol.   
Auto Smartports Automatically applies the intelligence delivered through the Smartports roles to the port based on the devices discovered over Cisco Discovery Protocol or LLDP-MED. This capability facilitates zero-touch deployments.   
Ports    
Model Name Total System Ports RJ-45 Ports Combo Ports (RJ-45 + SFP) 
SF250-48 48 Fast Ethernet + 2 Gigabit Ethernet 48 Fast Ethernet 2 Gigabit Ethernet combo + 2 SFP 
SF250-48HP 48 Fast Ethernet + 2 Gigabit Ethernet 48 Fast Ethernet 2 Gigabit Ethernet combo + 2 SFP 
SG250-10P 10 Gigabit Ethernet 8 Gigabit Ethernet 2 Gigabit Ethernet combo 
SG250-26 26 Gigabit Ethernet 24 Gigabit Ethernet 2 Gigabit Ethernet combo 
SG250-26HP 26 Gigabit Ethernet 24 Gigabit Ethernet 2 Gigabit Ethernet combo 
SG250-26P 26 Gigabit Ethernet 24 Gigabit Ethernet 2 Gigabit Ethernet combo 
Product Specifications    
USB slot USB Type-A slot on the front panel of the switch for easy file and image management   
Buttons Reset button   
Cabling type Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX; UTP Category 5e or better for 1000BASE-T   
LEDs System, Link/Act, PoE, Speed   
Flash 256 MB   
CPU 800 MHz ARM   
CPU memory 512 MB   
Package Contents    Cisco 250 Series Smart Switch   
Power cord (power adapter for 10-port SKUs)   
Mounting Kit   
Quick Start Guide   
Minimum Requirements   Web browser: Mozilla Firefox version 36 or later; Microsoft Internet Explorer version 9 or later, Chrome version 40 or later, Safari version 5 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   
Packet buffer    
All numbers are aggregate across all ports, as the buffers are dynamically shared:    
Model Name Packet Buffer      
SF250-48 24Mb      
SF250-48HP 24Mb      
SG250-10P 12Mb      
SG250-26 12Mb      
SG250-26HP 12Mb      
SG250-26P 12Mb      
Supported SFP/SFP+ Modules
SKU Media Speed Maximum Distance  
MGBBX1 Single-mode fiber 100 Mbps 10 km  
MGBSX1 Multimode fiber 100 Mbps 500 km  
MGBLH1 Single-mode fiber 100 Mbps 40 km  
MGBLX1 Single-mode fiber 100 Mbps 10 km  
MGBT1 UTP cat 5 100 Mbps 100 m  
Environmental
Power 100–240V 50–60 Hz, internal, universal – SF250-48, SF250-48HP, SG250-26, SG250-26HP, SG250-26P
100–240V 50–60 Hz, external – SG250-10P
Certification UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
Operating temperature 32° to 122°F (0° to 50°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
Unit Dimensions (W x H x D)
SF250-48 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SF250-48HP 440 x 44 x 350 mm (17.3 x 1.45 x 13.78 in)
SG250-10P 280 x 44 x 170 mm (11.0 x 1.45 x 6.69 in)
SG250-26 440 x 44 x 202 mm (17.3 x 1.45 x 7.95 in)
SG250-26HP 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
SG250-26P 440 x 44 x 257 mm (17.3 x 1.45 x 10.12 in)
Unit weight
SF250-48 3.57 kg (7.87 lb)
SF250-48HP 4.93 kg (10.87 lb)
SG250-10P 1.2 kg (2.65 lb)
SG250-26 2.72 kg (6.0 lb)
SG250-26HP 3.37 kg (7.43 lb)
SG250-26P 3.81 kg (8.40 lb)
Acoustic noise and mean time between failures (MTBF)
Model Name Fan (Number) Acoustic Noise MTBF at 40°C (Hours)
SF250-48 No fan N/A 256,281.25
SF250-48HP 2 °C to 30°C: 38.0dB 286,555.77
50°C: 52.7dB
SG250-10P No fan N/A 205,647.00
SG250-26 No fan N/A 343,592.66
SG250-26HP 1 °C to 30°C: 37.5dB 333,792.21
50°C: 49.7dB
SG250-26P 2 °C to 30°C: 36.0dB 430,341.06
50°C: 53.7dB
Warranty Limited lifetime
Power over Ethernet (PoE)
Switches support 802.3at PoE+, 802.3af, 802.3xx 60W, and Cisco prestandard (legacy) PoE. Maximum power of 60W to any 10/100 or Gigabit Ethernet port for PoE+ supported devices and 15.4W for PoE supported devices, until the PoE budget for the switch is reached. The total power available for PoE per switch is as follows:
802.3af PoE, 802.3at PoE+, and 802.3xx 60W power are delivered over any of the RJ-45 ports within the listed power budgets Model Name Power Dedicated to PoE Number of Ports That Support PoE
SF250-48HP 195W 48
SG250-10P 62W 8
SG250-26HP 100W 24
SG250-26P  195W  24  
PoE powered device and PoE passthrough
In addition to AC power, compact switch models can work as PoE powered devices and be powered by PoE switches connected to the uplink ports. The switch can also pass through the power to downstream PoE end devices if required.
Maximum of 60W can be drawn per uplink port if the peer PoE switch supports 60W PoE. When multiple uplink ports are connected to PoE switches, the power drawn from these ports is combined.
When AC power is connected and functioning properly, it will have priority over the PoE powered device function. The PoE powered device function will then act as a backup power source to the AC power. The PoE powered device function will be the primary power source for the switch if AC power is not connected.
Model Power Option Available PoE Power (W) Can Switch Be Powered with Uplinks?
SG250-10P 1 PoE uplink 0W Yes
2 PoE uplink 0W Yes
1 PoE+ uplink 0W Yes
2 PoE+ uplink 22W Yes
1 60W PoE uplink 22W Yes
2 60W PoE uplink 50W Yes
AC power 62W Yes
Model Green Power (mode) System Power Consumption Power Consumption (with PoE) Heat Dissipation (BTU/hr)
SF250-48 EEE, Energy Detect 110V=23.4W N/A 82.57
220V=24.2W
SF250-48HP EEE, Energy Detect 110V=43.1W 110V=265.2W 904.90
220V=44.3W 220V=255.8W
SG250-10P EEE, Energy Detect, Short Reach 110V=13.25W 110V=85.19W 290.68
220V=13.42W 220V=84.17W
SG250-26 EEE, Energy Detect, Short Reach 110V=18.1W N/A 64.49
220V=18.9W
SG250-26HP EEE, Energy Detect, Short Reach 110V=23.5W 110V=135.2W 461.32
220V=24.4W 220V=133.9W
SG250-26P EEE, Energy Detect, Short Reach 110V=34.2W 110V=262W 893.98
220V=37.2W 220V=254.5W

Teknik Kısa

PoE : PoE Plus
Port Hızı : 100 Mbps
Yönetilebilirlik : Yönetilebilir
Aktarım Port Sayısı : 2
Aktarım Türü : Combo
PoE Port Sayısı : Tooltip 48 Port
PoE Güç Bütçesi : 130-200 Watt