SF 300-48 48-port 10/100 Managed Switch with Gigabit Uplinks SRW248G4-K9

Cisco Small Business 300 Series

SF 300-48 48-port 10/100 Managed Switch with Gigabit Uplinks SRW248G4-K9

Giá: Liên hệ

Giới thiệu:

- Layer 2: Port nhóm lên đến 8 cổng cho mỗi nhóm với 16 cổng ứng cử viên cho mỗi tập hợp (năng động) liên kết 802.3ad, Số VLAN 256 VLAN hoạt động (4096 range), trưởng dòng (HOL) chặn HOL phòng ngừa ngăn chặn.
- Layer 3: IPv4 định tuyến Wirespeed định tuyến các gói tin IPv4, lên đến 32 tuyến tĩnh và lên đến 32 giao diện IP, Classless Inter-Domain Routing (CIDR) hỗ trợ cho CIDR.
- QoS: mức độ ưu tiên 4 hàng đợi phần cứng, xếp hàng ưu tiên Lập kế hoạch và Queue round-robin (WRR), phân công trọng dựa trên DSCP và lớp học của dịch vụ (802.1p/CoS).

Mua ngay

Switch Cisco SRW248G4-K9 thuộc dòng sản phẩm Cisco small business 300 series.Thiết bị mạng switch Cisco SRW248G4-K9 được thiết kế để phù hợp ở cả 3 lớp mạng. Switch Cisco SRW248G4-K9 cung cấp 48 10/100 ports, 2 10/100/1000 ports, 2 combo mini-GBIC.

48-Port 10/100/1000 Gigabit Switch CISCO LINKSYS SRW2048-K9
48-port 10/100/1000 + 4 shared mini-Gigabit Switch với WebView SRW2048-K9 (SG300-52). 50 10/100/1000, 2 Combo các cổng mini-GBIC.
Hiệu suất: chuyển mạch công suất 104,0 Gbps, nonblocking, giao nhận tỷ lệ 77,38 Mpps với tốc độ dây.
Layer 2: Port nhóm lên đến 8 cổng cho mỗi nhóm với 16 cổng ứng cử viên cho mỗi tập hợp (năng động) liên kết 802.3ad, Số VLAN 256 VLAN hoạt động (4096 range), trưởng dòng (HOL) chặn HOL phòng ngừa ngăn chặn.
Layer 3: IPv4 định tuyến Wirespeed định tuyến các gói tin IPv4, lên đến 32 tuyến tĩnh và lên đến 32 giao diện IP, Classless Inter-Domain Routing (CIDR) hỗ trợ cho CIDR.
QoS: mức độ ưu tiên 4 hàng đợi phần cứng, xếp hàng ưu tiên Lập kế hoạch và Queue round-robin (WRR), phân công trọng dựa trên DSCP và lớp học của dịch vụ (802.1p/CoS).

Thông số kỹ thuật cisco SF300-48

Cổng kết nối: 48 x 10/100 + 2 x combo Gigabit SFP + 2 x 10/100/1000
Loại thiết bị: Chuyển mạch - 48 cổng - L3 - đã được quản lý
Độ ẩm Vận hành: 10-90% (không ngưng tụ)
Trọng lượng: 13 lbs
Nhiệt độ hoạt động tối thiểu: 32 F
Giao tiếp: 48 x 10Base-T / 100Base-TX - RJ-45 - PoE; 1 x bảng điều khiển - 9 chân D-Sub (DB-9) - quản lý; 4 x 10Base-T / 100Base-TX / 1000Base-T - RJ-45; 2 x SFP (mini-GBIC)
Khoảng lưu trữ: 10-90% (không ngưng tụ)
Bộ nhớ Flash: 16 MB
Điện áp yêu cầu: AC 120/230 V (50/60 Hz)
Hiệu suất: Khả năng chuyển mạch: 17,6 Gbps; Hiệu suất chuyển tiếp (kích thước gói 64 byte): 13.1 Mpps
Thiết bị nguồn: Bộ chuyển đổi nguồn điện - bên ngoài
Cấp nguồn qua Ethernet (PoE): PoE
Chỉ báo trạng thái: Hoạt động liên kết, tốc độ truyền dẫn, hệ thống
Ram: 128 MB
Phương thức xác thực: Secure Shell (SSH), RADIUS, TACACS

Thông số kỹ thuật của Switch Cisco SRW248G4-K9

Product Description	● 48 10/100 ports ● 2 10/100/1000 ports ● 2 combo mini-GBIC
Device Type	Switch - 8 ports - L2 - Managed
Enclosure Type	Desktop, rack-mountable 1U
Subtype	Fast Ethernet
Power Over Ethernet (PoE)	N/A
PoE Budget	N/A
Performance	Switching capacity :17.6 Gbps ¦ Forwarding performance (64-byte packet size) :13.10 Mpps
Capacity	ACL rules : up to 512
MAC Address Table Size	8K entries
Jumbo Frame Support	10KB
Routing Protocol	Static IPv4 routing
Remote Management Protocol	SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS, SSH, CLI
Features	Layer 3 switching, Layer 2 switching, DHCP support, BOOTP support, VLAN support, IGMP snooping, Syslog support, DoS attack prevention, port mirroring, DiffServ support, Weighted Round Robin (WRR) queuing, Broadcast Storm Control, IPv6 support, Multicast Storm Control, Unicast Storm Control, firmware upgradable, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, Trivial File Transfer Protocol (TFTP) support, Access Control List (ACL) support, Quality of Service (QoS), Jumbo Frames support, MLD snooping
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.1ab (LLDP), IEEE 802.3at
Power	100-240V 50-60 Hz, internal, universal
Dimensions (WxDxH)	17.3 x 1.45 x 10.1 in. (440 x 44.45 x 257 mm)
Weight	7.47 lb (3.39 kg)
Operating temperature	32°to 122°F (0°to 50°C)
Storage temperature	-4°to 158°F (-20°to 70°C)
Operating humidity	10% to 90%, relative, noncondensing

Tính năng của Switch Cisco SRW248G4-K9

Layer 2 Switching

Spanning Tree Protocol (STP)

Standard 802.1d Spanning Tree support
Fast convergence using 802.1w (Rapid Spanning Tree [RSTP]), enabled by default
8 instances are supported
Multiple Spanning Tree instances using 802.1s (MSTP)

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 4096 VLANs simultaneously Port-based and 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 server along with 802.1x client authentication
CPE VLAN

Voice VLAN

Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS.
Auto voice capabilities deliver network-wide zero touch deployment of voice endpoints and call control devices.

Multicast TV VLAN

Multicast TV VLAN allows the single multicast VLAN to be shared in the network while subscribers remain in separate VLANs (Also known as MVR)

Q-in-Q VLAN

VLANs 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 and configuring VLANs in a bridged domain

Unidirectional Link Detection (UDLD)

UDLD monitors physical connection to detect unidirectional links caused by incorrect wiring or cable/port faults to prevent forwarding loops and blackholing of traffic in switched networks

Dynamic Host ConfigurationProtocol (DHCP) Relay at Layer 2

Relay of DHCP traffic to DHCP server in different VLAN. Works with DHCP Option 82

Internet Group ManagementProtocol (IGMP) versions 1, 2, and3 snooping

IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 1K multicast groups (source-specific multicasting is also supported)

IGMP Querier

IGMP querier is used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router

Head-of-line (HOL) blocking

HOL blocking prevention

Jumbo Frames

Up to 9K (9216) bytes

Layer 3

IPv4 routing

Wirespeed routing of IPv4 packets
Up to 512 static routes and up to 128 IP interfaces

Classless Inter-Domain Routing(CIDR)

Support for CIDR

Layer 3 Interface

Configuration of layer 3 interface on physical port, LAG, VLAN interface or Loopback interface

DHCP relay at Layer 3

Relay of DHCP traffic across IP domains

User Datagram Protocol (UDP)relay

Relay of broadcast information across Layer 3 domains for application discovery or relaying of BootP/DHCP packets

DHCP Server

Switch functions as an IPv4 DHCP Server serving IP addresses for multiple DHCP pools/scopes
Support for DHCP options

Security

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

IEEE 802.1X (Authenticator role)

802.1X: RADIUS authentication and accounting, MD5 hash; guest VLAN; unauthenticated VLAN, single/multiple host mode and single/multiple sessions
Supports time-based 802.1X Dynamic VLAN assignment

Web Based Authentication

Web based authentication provides network admission control through web browser to any host devices and operating systems.

STP Bridge Protocol Data Unit(BPDU) Guard

A security mechanism to 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 Guard

This prevents edge devices not in the network administrator’s control from becoming Spanning Tree Protocol root nodes.

DHCP snooping

Filters out DHCP messages with unregistered IP addresses and/or from unexpected or untrusted interfaces. This prevents rogue devices from behaving as a DHCP Server.

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 is no static or dynamic IP/MAC bindings or if there is a discrepancy between the source or destination address in the ARP packet. This prevents man-in-the-middle attacks.

IP/Mac/Port Binding (IPMB)

The features (DHCP Snooping, IP Source Guard, and Dynamic ARP Inspection) above work together to prevent DOS attacks in the network, thereby increasing network availability.

Secure Core Technology (SCT)

Ensures that the switch will receive and process management and protocol traffic no matter how much traffic is received.

Secure Sensitive Data (SSD)

A mechanism to manage sensitive data (such as passwords, keys, etc) securely on the switch, populating this data to other devices, and secure autoconfig. Access to view the sensitive data as plaintext or encrypted is provided according to the user configured access level and the access method of the user.

Layer 2 isolation Private VLAN Edge (PVE) with community VLAN

PVE (also known as protected ports) provides Layer 2 isolation between devices in the same VLAN, supports multiple uplinks.

Port security

The ability to lock Source MAC addresses to ports, and limits the number of learned MAC
addresses.

RADIUS/TACACS+

Supports RADIUS and TACACS authentication. Switch functions as a client.

Storm control

Broadcast, multicast, and unknown unicast

RADIUS accounting

The RADIUS accounting functions allow data to be sent at the start and end of services, indicating the amount of resources (such as time, packets, bytes, and so on) used during the session.

DoS prevention

Denial-of-Service (DOS) attack prevention

ACLs

Support for up to 512 rules
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, Time-based ACLs supported.

Bảo hành 12 tháng, theo chính sách bảo hành của hãng Cisco Việt Nam.

Download tài liệu thiết bị mạng Cisco 300 Series Smart Switches Cisco Small Business data_sheet_c78-610061.pdf