Thiết bị chuyển mạch Eltex MES2428

The switches provide connection of end users 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

Physical specifications and ambient parameters

• Power supply 220 VAC, 50 Hz
• Maximum power consumption 18 W
• Hardware support for Dying Gasp
• 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