Cisco Switch SF250-24P-K9-EU
- 24 10/100 ports PoE+ with 185W power budget + 2 Gigabit copper/SFP combo + 2 SFP ports.
- Performance: Switching capacity 12.8 Gbps, Forwarding rate 9.52 mpps wire-speed performance.
- Layer 2: Port grouping up to 4 groups, up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation.
- Layer 3: IPv4 routing Wire-speed routing of IPv4 packets up to 32 static routes and up to 16 IP interfaces, IPv6 routing Wire-speed routing of IPv6 packets, Classless Interdomain Routing (CIDR) Support for CIDR.
- PoE: PoE Power Budget: 185 W, Number of Ports That Support PoE: 24.
- QoS (Quality of Service): Priority levels 8 hardware queues, Scheduling Strict priority and weighted round-robin (WRR) Queue assignment based on DSCP and class of service (802.1p/CoS).
Đặc tính kỹ thuật
|
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 |
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Uplink ports |
2 Gigabit Ethernet combo + 2 SFP |
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Layer 2 Switching |
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Spanning Tree Protocol (STP) |
Standard 802.1d STP support
Fast convergence using 802.1w (Rapid Spanning Tree [RSTP]), enabled by default |
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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) |
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Head-of-line (HOL) blocking |
HOL blocking prevention |
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Security |
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IEEE 802.1X (Authenticator role) |
802.1X: RADIUS authentication, MD5 hash |
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Port security |
Locks MAC addresses to ports, and limits the number of learned MAC addresses |
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Storm control |
Broadcast, multicast, and unknown unicast |
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DoS prevention |
DoS attack prevention |
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Quality of Service |
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Priority levels |
4 hardware queues |
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Scheduling |
Strict priority and weighted round-robin (WRR)
Queue assignment based on differentiated services code point (DSCP) and class of service (802.1p/CoS) |
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Class of service |
Port based, 802.1p VLAN priority based, IPv4/v6 IP precedence/type of service (ToS)/DSCP based, Differentiated Services (DiffServ) |
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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 |
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Power |
100 to 240V 50 to 60 Hz, internal, universal |