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Ethernet Access Switches MES2428B

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.

Uninterruptible power supply

MES2428B switches are capable to use external power battery in order to provide uninterruptible operation in case of 220V power shutdown. The switches are equipped with power supply unit that allows charging storage battery if 220V supply line is available. The redundant power system provides monitoring for power supply line and notifies on power sources switching.

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
- 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
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

*SFP modules (doesn't included in basic package)*
1 fiber	Part Number
SFP 1.25 GE module, 3 km, SM, 1 fiber, TX/RX 1310/1550 SC set, DDM	FH-SB3512CDS3 / FH-SB5312CDS3
SFP 1.25 GE module, 3 km, SM, 1 fiber, TX/RX 1310/1550 LC set, DDM	FH-SB3512CDL3 / FH-SB5312CDL3
SFP 1.25 GE module, 20 km, SM, 1 fiber, TX/RX 1310/1550 SC set, DDM	FH-SB3512CDS20 / FH-SB5312CDS20
SFP 1.25 GE module, 20 km, SM, 1 fiber, TX/RX 1310/1550 LC set, DDM	FH-SB3512CDL20 / FH-SB5312CDL20
SFP 1.25 GE module, 20 km, SM, 1 fiber, TX/RX 1310/1550 SC set, DDM, INDUSTRIAL	FH-SB3512IDS20 / FH-SB5312IDS20
SFP 1.25 GE module 40 km, SM, 1 fiber, TX/RX 1310/1550 LC set, DDM	FH-SB3512CDL40 / FH-SB5312CDL40
SFP 1.25 GE module 40 km, SM, 1 fiber, TX/RX 1310/1550 SC set, DDM	FH-SB3512CDS40 / FH-SB5312CDS40
SFP 1.25 GE module 80 km, SM, 1 fiber, TX/RX 1490/1550 LC set, DDM	FH-SB4512CDL80 / FH-SB5412CDL80
SFP 1.25 GE module 80 km, SM, 1 fiber, TX/RX 1490/1550 SC set, DDM	FH-SB4512CDS80 / FH-SB5412CDS80
SFP 1.25 GE module 120 km, SM, 1 fiber, TX/RX 1490/1550 LC set, DDM	FH-SB4512CDL120 / FH-SB5412CDL120
SFP 1.25 GE module 120 km, SM, 1 fiber, TX/RX 1490/1550 SC set, DDM	FH-SB4512CDS120 / FH-SB5412CDS120
SFP 1.25 GE module 160 km, SM, 1 fiber, TX/RX 1490/1550 LC set, DDM	FH-SB4512CDL160 / FH-SB5412CDL160
2 fibers
SFP 1.25 GE module 550 m, MM, 2 fibers, 850 nm, LC, DDM	FH-S8512CDL05
SFP 1.25 GE module 2 km, ММ, 2 fibers, 1310 nm, LC, DDM	FH-S3112CDL2
SFP 1.25 GE module 20 km, SМ, 2 fibers, 1310 nm, LC, DDM	FH-S3112CDL20
SFP 1.25 GE module 40 km, SМ, 2 fibers, 1310 nm, LC, DDM	FH-S3112CDL40
SFP 1.25 GE module 80 km, SМ, 2 fibers, 1550 nm, LC, DDM	FH-S5512CDL80
SFP 1.25 GE module 120 km, SМ, 2 fibers, 1550 nm, LC, DDM	FH-S5512CDL120
SFP 1.25 GE module 160 km, SМ, 2 fibers, 1550 nm, LC, DDM	FH-S5512CDL160
SFP transceivers with RJ-45 interface
SFP transceiver of 10/100/1000 BASE-T	FH-ST2