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Switch CISCO SG250-26-K9

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MSSP: SG250-26-K9

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Switch Cisco SG250-26-K9 (SG250 26 K9) Cisco Small Business 250 Series 24 10/100/1000 ports, 2 Gigabit copper/SFP combo ports

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Vũ Huy Sơn

Switch Cisco SG250-26-K9 thuộc dòng sản phẩm Cisco Small Business 250 series. Thiết bị mạng Switch Cisco SG250-26-K9 được thiết kế để phù hợp ở cả 3 lớp mạng. Switch Cisco SG250-26-K9 cung cấp 24 10/100/1000 ports, 2 Gigabit copper/SFP combo ports cho các kết nối LAN tại các doanh nghiệp vừa và nhỏ.

Switch Cisco SG250-26-K9 để kết nối các máy tính, máy in, camera hoăc các thiết bị wifi trong 1 phòng ban, trong các doanh nghiệp nhỏ với số lượng user ít... hoặc sử dụng để mở rộng mạng LAN trong các doanh nghiệp.

Model	SG250-26-K9-EU
Performance
Switching capacity and forwarding rate	Capacity in Millions of Packets per Second (mpps) (64-byte packets): 38.69 Switching Capacity in Gigabits per Second (Gbps): 52
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	26 Gigabit Ethernet
RJ-45 ports	24 Gigabit Ethernet
Uplink ports	2 Gigabit Ethernet combo
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
Environmental
Dimensions (W x H x D)	440 x 44 x 202 mm
Unit weight	2.72 kg
Power	100 to 240V 50 to 60 Hz, internal, universal

Model	SG250-26-K9-EU
Performance
Switching capacity and forwarding rate	Capacity in Millions of Packets per Second (mpps) (64-byte packets): 38.69 Switching Capacity in Gigabits per Second (Gbps): 52
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	26 Gigabit Ethernet
RJ-45 ports	24 Gigabit Ethernet
Uplink ports	2 Gigabit Ethernet combo
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
Environmental
Dimensions (W x H x D)	440 x 44 x 202 mm
Unit weight	2.72 kg
Power	100 to 240V 50 to 60 Hz, internal, universal