Ethernet Access Switches MES2428B

General parameters

• Packet processor: Realtek RTL8332M
• 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 10000 bytes
• Buffer memory 512 KB
• RAM (DDR3) 256 MB
• ROM (SPI Flash) 32 MB
• L2 Multicast groups (IGMP Snooping) 512
• Quality of Service (QoS) 8 output queues per port

Interface features

• Head-of-line blocking (HOL) protection
• Back pressure support¹
• Auto MDI/MDIX
• umbo 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
• MAC flapping events monitoring per ports¹

VLAN features

• IEEE 802.1Q
• Q-in-Q
• Selective Q-in-Q (VLAN Translation)
• GVRP¹

L2 Multicast features

• Multicast profiles
• Static Multicast groups
• IGMP Snooping v1,2,3
• Port-based IGMP Snooping Fast Leave
• IGMP authorization via RADIUS¹
• 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
• ERPS (G.8032v2)¹
• ELPS (G.8031)¹
• 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
• Green Ethernet¹

IPv6

• IPv6 Host
• Dual-stack

Security functions

• DHCP Snooping
• DHCP Option 82
• IP Source Guard
• Dynamic ARP Inspection (Protection)
• sFlow¹
• MAC-based authentication, Port Security, static MAC entries
• Port-based authentication IEEE 802.1x¹
• Guest VLAN¹
• DoS attacks prevention¹
• Traffic segmentation¹
• 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

• – VLAN ID
  – EtherType
  – DSCP
  – IP type
  – TCP/UDP port number
  – User Defined Bytes
  – IEEE 802.1p priority

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
    • CoS to DSCP, DSCP to CoS remarking
    • ACL-based VLAN assignment

OAM

• • • IEEE 802.3ah, Ethernet OAM
    • Dying Gasp
    • IEEE 802.1ag, Connectivity Fault Management (CFM)¹
    • IEEE 802.3ah Unidirectional Link Detection (UDLD)

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)
    • Web interface¹
    • 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 Option 12¹
    • 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
    • RMON/SMON
    • CPU utilization monitoring per task and per traffic type
    • RAM utilization monitoring
    • Temperature monitoring
    • TCAM monitoring

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

Uninterruptible power supply

• • • Automatic switching to storage battery (12V) in case of 220V supply line failure and switching back
    • Battery charging (12V) during primary network operation (220V)
    • Power source type monitoring (including SNMP)
    • Notifications on power source switching
    • Battery connection indication
    • Low battery alarm
    • Short circuit failure protection

¹

Not supported in the current firmware version 10.1.8.2