Thiết bị chuyển mạch Eltex MES2428B AC

Key features

• Advanced L2 features
• Support for Multicast (IGMP Snooping, MVR)
• Advanced security functions (L2-L4 ACL, IP Source Guard, Dynamic ARP Inspection, etc.)
• Uninterruptible power supply via battery  

The switches provide end users connection to networks of large enterprises, small and mid-sized businesses and service providers via Fast and Gigabit Ethernet interfaces.
The switches support Virtual Local Area Networks (VLAN), multicast groups and advanced security functions.

General parameters

• Packet processor: Realtek RTL8382M
• 24 ports 10/100/1000BASE-T
• 4 Combo ports 10/100/1000BASE-T/100BASE-FX/1000BASE-X 
• Console port RS-232/RJ-45
• Bandwidth 56 Gbps
• Throughput for 64-byte packets 41.658 MPPS
• MAC table 8K
• ACL table 1.5K
• Jumbo frame size the maximum packet size is 10 000 bytes
• Buffer memory 512 KB
• RAM (DDR3) 256 MB
• ROM (SPI Flash) 32 MB
• L2 Multicast groups (IGMP Snooping) 509
• Quality of Service (QoS) 8 output queues per port

Interface features

• Head-of-line blocking (HOL) protection
• Auto MDI/MDIX
• Jumbo frames
• Flow Control IEEE 802.3X
• RSPAN
• Port mirroring

MAC table

• Independent learning mode per VLAN
• MAC Multicast Support
• Configurable aging time of MAC addresses
• Static MAC Entries
• MAC change events monitoring per ports

VLAN features

• IEEE 802.1Q
• Q-in-Q
• Selective Q-in-Q (VLAN Translation)

L2 Multicast features

• Multicast profiles
• Static Multicast groups
• IGMP Snooping v1,2,3
• Port-based IGMP Snooping Fast Leave
• IGMP proxy-report features
• MLD Snooping v1,2
• IGMP Querier
• MVR

L2 features

• STP (Spanning Tree Protocol, IEEE 802.1d)
• RSTP (Rapid Spanning Tree Protocol, IEEE 802.1d)
• MSTP (Multiple Spanning Tree Protocol, IEEE 802.1s)
• STP Root Guard
• STP Loop Guard
• STP BPDU Guard
• BPDU Filtering
• Spanning Tree Fast Link option
• Layer 2 Protocol Tunneling
• Loopback Detection (LBD)
• Port isolation
• Storm Control for different types of traffic (broadcast, multicast, unknown unicast)

Link Aggregation functions

• Static LAG
• Dynamic LAG (LACP)
• LAG Balancing Algorithm

Service functions

• Virtual cable testing (VCT)
• Optical transceiver diagnostics

IPv6

• IPv6 Host
• Dual-stack

Security functions

• DHCP Snooping
• DHCP Option 82
• IP Source Guard
• Dynamic ARP Inspection (Protection)
• MAC-based authentication, Port Security, static MAC entries
• DoS attacks prevention
• Traffic segmentation
• DHCP clients filtering
• BPDU attacks prevention
• PPPoE Intermediate agent

Access control lists (ACL)

• L2-L3-L4 ACL (Access Control List)
• IPv6 ACL
• ACL based on:
• Switch port
• IEEE 802.1p priority
• VLAN ID
• EtherType
• DSCP 
• IP type 
• TCP/UDP port number
• User Defined Bytes 

Quality of service (QoS) and rate limiting

• Shaping, policing
• Support for IEEE 802.1p Class of Service
• Scheduling algorithms: Strict Priority/Weighted Round Robin (WRR)
• IEEE 802.1p priority for management VLAN
• ACL-based traffic classification
• ACL-based CoS/DSCP mark assignmen
• ACL-based VLAN assignment
• CoS to DSCP remarking
• DSCP to CoS remarking

ОАМ 

• IEEE 802.3ah, Ethernet OAM
• IEEE 802.3ah Unidirectional Link Detection (UDLD)
• Dying Gasp

Main management functions

• Download and upload of configuration file via TFTP/SFTP
• Automated backup of configuration file via TFTP/SFTP
• Simple Network Management Protocol (SNMP)
• Command LIne Interface (CLI)
• Syslog
• Simple Network Time Protocol (SNTP)
• Traceroute
• LLDP (IEEE 802.1ab) + LLDP MED
• Access management – privilege levels for users
• Management interface blocking
• Local authentication
• IP addresses filtering for SNMP
• RADIUS and TACACS+ clients
• SSH server
• SSL
• Input commands logging via TACACS+
• DHCP autoprovision
• DHCP Relay (support for IРv4)
• DHCP Relay Option 82
• PPPoE Circuit-ID tag adding
• Flash File System
• Debugging commands
• Limiting of traffic to CPU
• Password encryption
• Ping (support for IPv4/IPv6)
• IPv4/IPv6 static routes support
• Support for several versions of configuration file

Monitoring functions 

• Interface statistics
• CPU utilization monitoring per task and per queue
• RAM utilization monitoring
• Temperature monitoring
• TCAM monitoring

Uninterruptible power supply

Physical specifications and ambient parameters

• Power supply 220 VAC, 50 Hz/12 VDC
• Maximum power consumption 45 W (including battery charging)
• Operating temperature: from -20 to +50 °С
• Storage temperature: from -40 to +70 °С
• Operating humidity: no more than 80%
• Cooling: passive
• Dimensions (WxDxH), mm: 430x178x44
• Weight 2.35 kg

Giao hàng toàn quốc. Chúng tôi sử dụng các dịch vụ giao hàng và thanh toán tại nhà (COD) của Giaohangtietkiem, Viettel Post, GHN và những dịch vụ khác để giao hàng đến quý khách hàng trong thời gian sớm nhất