Mô tả
18-Port Gigabit Smart Switch CISCO SG250-18-K9-EU
– 16 10/100/1000 ports + 2 Gigabit copper/SFP combo ports.
– Performance: Switching capacity 36 Gbps, Forwarding rate 26.78 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.
– 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).
Thông số, tính năng kỹ thuật
| Model | SG250-18-K9-EU |
| Performance | |
| Switching capacity and forwarding rate | Capacity in Millions of Packets per Second (mpps) (64-byte packets): 26.78 Switching Capacity in Gigabits per Second (Gbps): 36 |
| 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 | 18 Gigabit Ethernet |
| RJ-45 ports | 16 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 | 2.08 kg |
– Bảo hành: 12 tháng.
