Switch Cisco SF250-24 24-Port (SF250-24-K9)
24 10/100 Mbps ports; 2 Gigabit Ethernet combo + 2 SFP.
Performance: Capacity in millions of packets per second (mpps) (64-byte packets): 9.52; Switching capacity in gigabits per second (Gbps) 12.8 Gbps.
Hỗ trợ Layer 3 routing : IPv4 routing : Up to 32 static routes and up to 16 IP interfaces; IPv6 routing; Layer 3 interface; Classless Interdomain Routing (CIDR); DHCP relay at Layer 3 Relay; User Datagram Protocol (UDP) relay.
Layer 2: Port grouping up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation, Support for up to 256 VLANs simultaneously (out of 4096 VLAN IDs), Head-of-line (HOL) blocking HOL blocking prevention.
Internet Group Management Protocol(IGMP) versions 1 and 2 snooping: IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 256 multicast groups.
Tham khảo datasheet về các tính năng của Switch : Performance, Layer 2 Switching, Layer 3 routing, Security, Quality of Service, Standards, IPV6, Management, Green (power efficiency) ...
|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|
|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|
|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|