Switch Cisco SG220-50 50-port (SG220-50-K9)
48-port Gigabit; 2 Combo mini-GBIC ports.
Performance: Switching capacity 100 Gbps.
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.
QoS: Priority levels 4 : hardware queues, Scheduling: Priority queuing and weighted round-robin (WRR), Queue assignment based on DSCP and class of service (802.1p/CoS).
Tham khảo datasheet về các tính năng của Switch : Performance, Layer 2 Switching, Security, Quality of Service, Standards, IPV6, Management, ...
|Switching capacity and forwarding rate||Capacity in Millions of Packets per Second (mpps) (64-byte packets): 74.4|
Switching Capacity in Gigabits per Second (Gbps): 100
|Jumbo frames||Frame sizes up to 9216 supported|
|MAC table||Up to 8192 MAC addresses|
|Total system ports||50 Gigabit Ethernet|
|RJ-45 ports||48 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 8 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|
Port-based and 802.1Q tag-based VLANs
|Auto voice VLAN||Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS|
|QinQ VLAN||VLANs transparently cross a service provider network while isolating traffic among customers|
|Generic VLAN Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP)||Protocols for automatically propagating and configuring VLANs in a bridged domain|
|Head-Of-Line (HOL) blocking||HOL blocking prevention|
|Loopback detection||Loopback detection provides protection against loops by transmitting loop protocol packets out of ports on which loop protection has been enabled. It operates independently of STP.|
|Automatic Media-Dependent Interface Crossover (MDIX)||Automatically adjusts transmit and receive pairs if an incorrect cable type (crossover or straight-through) is installed.|
|ACLs||Drop or rate limit based on source and destination MAC, VLAN ID or IP address, protocol, port, Differentiated Services Code Point (DSCP)/IP precedence, TCP/UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag|
Support up to 512 rules
|Port security||Creates the ability to lock source MAC addresses to ports; limits the number of learned MAC addresses|
|IEEE 802.1X (authenticator role)||802.1X: RADIUS authentication; guest VLAN;|
|RADIUS, TACACS+||Supports RADIUS and TACACS authentication; switch functions as a client|
|MAC address filtering||Supported|
|Storm control||Broadcast, multicast, and unknown unicast|
|DoS protection||DOS attack prevention|
|STP Bridge Protocol Data Unit (BPDU) Guard||This security mechanism protects the network from invalid configurations. A port enabled for BPDU Guard is shut down if a BPDU message is received on that port|
|Spanning Tree Loop Guard||This feature provides additional protection against Layer 2 forwarding loops (STP loops).|
|Secure Shell (SSH) Protocol||SSH is a secure replacement for Telnet traffic. SCP also uses SSH. SSH v1 and v2 are supported|
|Secure Sockets Layer (SSL)||SSL support: Encrypts all HTTPS traffic, allowing highly secure access to the browser-based management GUI in the switch|
|Quality of Service|
|Priority levels||8 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|
|Dimensions (W x H x D)||440 x 44 x 201 mm|
|Unit weight||3.3 kg|
|Power||100 to 240V 50 to 60 Hz, internal|