20

Trang chủ >> thứ mạng >> vật dụng mạng Cisco >> 20-Port Gigabit Managed Switch CISCO SG350-20-K9-EU
*

20-Port Gigabit Managed Switch CISCO SG350-20-K9-EU

- 16 10/100/1000 ports + 2 Gigabit copper/SFP bộ combo + 2 SFP ports.

Bạn đang xem: 20

- Performance: Switching capacity 40 Gbps, Forwarding rate 29.76 mpps wire-speed performance.

- Layer 2: Port grouping up khổng lồ 8 groups, up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation.

- Layer 3: IPv4 routing Wirespeed routing of IPv4 packets up khổng lồ 1K static routes and up to lớn 256 IP interfaces, Classless Interdomain Routing (CIDR) support for CIDR.

- QoS (Quality of Service): Priority levels 8 hardware queues, Scheduling Strict priority và weighted round-robin (WRR) Queue assignment based on DSCP and class of service (802.1p/CoS).

Xem thêm: #7 Cách Điều Chỉnh Độ Sáng Màn Hình Máy Tính Bàn Và Laptop, Thay Đổi Độ Sáng Màn Hình Trong Windows

Đặc tính kỹ thuật

ModelSG350-20-K9-EU
Performance
Switching capacity và forwarding rateCapacity in Millions of Packets per Second (mpps) (64-byte packets): 29.76
All switches are wire speed & nonblockingSwitching Capacity in Gigabits per Second (Gbps): 40
Total System Ports20 Gigabit Ethernet
RJ-45 Ports16 Gigabit Ethernet
Up link port2 SFP slots, 2 Gigabit Ethernet combo
Jumbo framesFrame sizes up lớn 9K bytes. The default MTU is 2K
MAC table64K addresses
Layer 2 Switching
Spanning Tree ProtocolStandard 802.1d Spanning Tree support Fast convergence using 802.1w (Rapid Spanning Tree ), enabled by mặc định 8 instances are supported Multiple Spanning Tree instances using 802.1s (MSTP)
Port groupingSupport for IEEE 802.3ad link Aggregation Control Protocol (LACP): Up lớn 8 groups, Up to lớn 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad liên kết aggregation
VLANSupport for up lớn 4096 VLANs simultaneously Port-based và 802.1Q tag-based VLANs MAC-based VLAN Management VLAN Private VLAN Edge (PVE), also known as protected ports, with multiple uplinks Guest VLAN Unauthenticated VLAN Dynamic VLAN assignment via RADIUS vps along with 802.1x client authentication CPE VLAN
Voice VLANVoice traffic is automatically assigned to lớn a voice-specific VLAN & treated with appropriate levels of QoS tự động hóa voice capabilities deliver networkwide zero-touch deployment of voice endpoints và call control devices
Multicast TV VLANMulticast TV VLAN allows the single multicast VLAN lớn be shared in the network while subscribers remain in separate VLANs (also known as MVR)
Q-in-Q VLANVLANs transparently cross a service provider network while isolating traffic among customers
Generic VLAN Registration Protocol (GVRP)/Generic Attribute Registration Protocol (GARP)Protocols for automatically propagating và configuring VLANs in a bridged domain
Unidirectional liên kết Detection (UDLD)UDLD monitors physical connection khổng lồ detect unidirectional liên kết caused by incorrect wiring or cable/port faults to prevent forwarding loops & blackholing of traffic in switched networks
Dynamic Host Configuration Protocol (DHCP) Relay at Layer 2Relay of DHCP traffic lớn DHCP server in different VLAN; works with DHCP Option 82
Internet Group Management Protocol (IGMP) versions 1, 2, & 3 snoopingIGMP limits bandwidth-intensive multicast traffic to lớn only the requesters; supports 1K multicast groups (source-specific multicasting is also supported)
IGMP QuerierIGMP querier is used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router
Head-Of-Line (HOL) blockingHOL blocking prevention
Loopback DetectionLoopback 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
Layer 3
IPv4 routingWirespeed routing of IPv4 packets Up khổng lồ 1K static routes and up to lớn 256 IP interfaces
IPv6 routingWirespeed routing of IPv6 packets
Classless Interdomain Routing (CIDR)Support for CIDR
Layer 3 InterfaceConfiguration of Layer 3 interface on physical port, LAG, VLAN interface, or loopback interface
DHCP relay at Layer 3Relay of DHCP traffic across IP domains
User Datagram Protocol (UDP) relayRelay of broadcast information across Layer 3 domains for application discovery or relaying of bootP/DHCP packets
DHCP ServerSwitch functions as an IPv4 DHCP vps serving IP addresses for multiple DHCP pools/scopes tư vấn for DHCP options
Security
Secure Shell (SSH) ProtocolSSH is a secure replacement for Telnet traffic. SCP also uses SSH. SSH v1 và v2 are supported
Secure Sockets Layer (SSL)SSL support: Encrypts all HTTPS traffic, allowing highly secure access lớn the browser-based management GUI in the switch
IEEE 802.1X (Authenticatorrole)802.1X: RADIUS authentication and accounting, MD5 hash; guest VLAN; unauthenticated VLAN, single/multiple host mode & single/multiple sessions Supports time-based 802.1X Dynamic VLAN assignment
Web-based authenticationWeb based authentication provides network admission control through website browser to lớn any host devices và operating systems
STP Bridge Protocol Data Unit (BPDU) GuardA security mechanism lớn protect the network from invalid configurations. A port enabled for BPDU Guard is shut down if a BPDU message is received on that port
STP Root GuardThis prevents edge devices not in the network administrator’s control from becoming Spanning Tree Protocol root nodes
DHCP snoopingFilters out DHCP messages with unregistered IP addresses and/or from unexpected or untrusted interfaces. This prevents rogue devices from behaving as DHCP Servers
IP Source Guard (IPSG)When IP Source Guard is enabled at a port, the switch filters out IP packets received from the port if the source IP addresses of the packets have not been statically configured or dynamically learned from DHCP snooping. This prevents IP Address Spoofing
Dynamic ARP Inspection (DAI)The switch discards ARP packets from a port if there are no static or dynamic IP/MAC bindings or if there is a discrepancy between the source or destination addresses in the ARP packet. This prevents man-in-the-middle attacks
IP/MAC/Port Binding (IPMB)The preceding features (DHCP Snooping, IP Source Guard, & Dynamic ARP Inspection) work together lớn prevent DOS attacks in the network, thereby increasing network availability
Secure Core công nghệ (SCT)Makes sure that the switch will receive và process management và protocol traffic no matter how much traffic is received
Secure Sensitive Data (SSD)A mechanism to lớn manage sensitive data (such as passwords, keys, & so on) securely on the switch, populating this data to other devices, và secure autoconfig. Access lớn view the sensitive data as plaintext or encrypted is provided according lớn the user-configured access level và the access method of the user
Layer 2 isolation Private VLAN Edge (PVE) with community VLANPVE (also known as protected ports) provides Layer 2 isolation between devices in the same VLAN, supports multiple uplinks
Port securityThe ability khổng lồ lock source MAC addresses khổng lồ ports & limits the number of learned MAC addresses
RADIUS/TACACS+Supports RADIUS & TACACS authentication. Switch functions as a client
Storm controlBroadcast, multicast, và unknown unicast
RADIUS accountingThe RADIUS accounting functions allow data to lớn be sent at the start & end of services, indicating the amount of resources (such as time, packets, bytes, & so on) used during the session
DoS preventionDenial-Of-Service (DOS) attack prevention
ACLsSupport for up khổng lồ 512 rules Drop or rate limit based on source và destination MAC, VLAN ID or IP address, protocol, port, Differentiated Services Code Point (DSCP)/IP precedence, TCP/UDP source và destination ports, 802.1p priority, Ethernet type, mạng internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag, time-based ACLs supported
Quality of Service
Priority levels8 hardware queues
SchedulingStrict priority and Weighted Round-Robin (WRR)Queue assignment based on DSCP and class of service (802.1p/CoS)
Class of servicePort based; 802.1p VLAN priority based; IPv4/v6 IP precedence/Type of Service (ToS)/DSCP based; Differentiated Services (DiffServ); classification and remarking ACLs, trusted QoS
Rate limitingIngress policer; egress shaping và rate control; per VLAN, per port, và flow based
Environmental
Dimensions440 x 44 x 203 mm
Weight2.12 kg

- Bảo hành: 12 tháng.

table('setting')->where("{$db->web}")->select('code_footer'); if($oh->code_footer){ # nếu có code header tùy chỉnh $code_footer = htmlspecialchars_decode($oh->code_footer); $code_footer = str_replace('[home_link]', $home, $code_footer); $code_footer = str_replace('[home_name]', $h, $code_footer); $code_footer = str_replace('[link]', $link, $code_footer); $code_footer = str_replace('[title]', $head->tit, $code_footer); $code_footer = str_replace('[des]', $head->des, $code_footer); $code_footer = str_replace('[key]', $head->key, $code_footer); $code_footer = str_replace('[image]', $head->img, $code_footer); $code_footer = str_replace('[link]', $link, $code_footer); $code_footer = str_replace('[date_Y]', date('Y'), $code_footer); echo $code_footer; } ?>