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Thương hiệu:

Switch Cisco SF250-24P-K9-EU

  • Thương Hiệu: Cisco
  • Mã: SF250-24P-K9-EU
  • Port : 24 10/100 ports PoE+ with 185W power budget + 2 Gigabit copper/SFP combo + 2 SFP ports.

Giá: Liên hệ

Thông Số Kỹ Thuật Switch Cisco SF250-24P-K9-EU

Model SF250-24P-K9-EU
Performance
Switching capacity and forwarding rate Capacity in Millions of Packets per Second (mpps) (64-byte packets): 9.52
Switching Capacity in Gigabits per Second (Gbps): 12.8
Jumbo frames Frame sizes up to 10 KB supported on 10/100 and Gigabit Ethernet interfaces (9 KB for SG200-08 and SG200-08P)
MAC table Up to 8,000 MAC addresses
Total system ports 24 Fast Ethernet + 4 Gigabit Ethernet
RJ-45 ports 24 Fast Ethernet
Uplink ports 2 Gigabit Ethernet combo + 2 SFP
Layer 2 Switching
Spanning Tree Protocol (STP) Standard 802.1d STP support
Fast convergence using 802.1w (Rapid Spanning Tree [RSTP]), enabled by default
Port grouping 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 link aggregation
VLAN Support for up to 256 VLANs simultaneously (out of 4096 VLAN IDs). 16 VLANs supported in SG200-08 and SG200-08P
Port-based and 802.1Q tag-based VLANs
Voice VLAN Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS
Internet Group Management Protocol (IGMP) versions 1 and 2 snooping IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 256 multicast groups (16 for SG200-08 and SG200-08P)
Head-of-line (HOL) blocking HOL blocking prevention
Security
IEEE 802.1X (Authenticator role) 802.1X: RADIUS authentication, MD5 hash
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
Quality of Service
Priority levels 4 hardware queues
Scheduling Strict priority and weighted round-robin (WRR)
Queue assignment based on differentiated services code point (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)
Rate limiting Ingress policer, per VLAN and per port
Power over Ethernet
802.3af PoE or 802.3at PoE+ delivered over any of the RJ-45 network ports within the listed power budgets Switches support 802.3af, 802.3at, and Cisco pre-standard (legacy) PoE with maximum power of 30 W per port.
This applies to the following PoE-enabled models; the maximum number of ports providing PoE power simultaneously is determined by the total PoE budget for the switch listed as below:
PoE Power Budget: 185 W
Number of Ports That Support PoE: 24
Pre-standard PoE Support Cisco Pre-Standard PoE
Intelligent PoE power management Support the granular power negotiation with CDP/LLDP communication with PD devices after IEEE classification
Environmental
Dimensions (W x H x D) 440 x 44 x 257 mm
Unit weight 4.1 kg
Power 100 to 240V 50 to 60 Hz, internal, universal
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