Thiết bị chuyển mạch Eltex MES2448B

Key features

• Advanced L2 features
• Support for Multicast (IGMP Snooping, MVR)
• Uninterruptible power supply from rechargeable battery

The switches provide end users connection to networks of large enterprises, small and mid-sized businesses and service providers via 1G/10G interfaces.

The switches support Virtual Local Area Networks (VLAN), multicast groups and advanced security functions.

Uninterruptible power
MES2448B switches can be equipped with a rechargeable battery to ensure power supply in case of the primary network connection loss. The switch is also equipped with a power supply unit which allows the battery to be charged when AC power is available. Power supply redundancy makes it possible to monitor the state of the primary network and notify of a power type switching.

Interfaces

• 10/100/1000BASE-T (RJ-45) – 48
• 1000BASE-X(SFP)/ 10GBASE-R(SFP+) – 4
• Console port RS-232 (RJ-45) – 1

Performance

• Packet processor – Realtek RTL9311
• Bandwidth – 176 Gbps Gbps
• Throughput on 64-byte packets – 130.9 MPPS
• Buffer memory – 2 MB
• RAM (DDR3) – 512 MB
• ROM (SPI Flash) – 64 MB
• MAC table – 32K
• TCAM table – 4K
• L2 Multicast groups (IGMP Snooping) – 4K
• VLAN table – 4094
• Quality of service (QoS) – 8 output queues per port
• Link Aggregation Groups (LAG) – 24 groups
• Jumbo frame size – he maximum packet size is 12 288 bytes

Interface features

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

МAC 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

L2 Multicast features

• Multicast profiles
• Static Multicast groups
• IGMP Snooping v1,2,3
• Port-based IGMP Snooping Fast Leave
• IGMP proxy-report features
• 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
• Loopback Detection (LBD)
• Port isolation
• Storm Control for different types of traffic (broadcast, multicast, unknown unicast)
• Layer 2 Protocol Tunneling

Link Aggregation functions

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

Service functions

• Virtual cable testing (VCT)
• Optical transceiver diagnostics

Security functions

• DHCP Snooping
• DHCP Option 82
• MAC-based authentication, Port Security, static MAC entries
• Traffic segmentation
• DHCP clients filtering
• BPDU attacks prevention

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 assignment
• CoS to DSCP remarking
• DSCP to CoS remarking

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
• Telnet client
• Telnet server, SSH server
• Macro commands
• 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 provision

• Automatic switching to and from the rechargeable battery (12 V) in case of the primary (220 V) network fail
• Battery charge (12 V) when primary network (220 V) is available
• Power supply type monitoring (SNMP)
• Notification of a power supply type switching
• Battery connection indication
• Low battery alarm
• Short-circuit protection

Physical specifications and environmental parameters

• Power supply:
  • 110–250 V AC, 60/50 Hz
  • 12 V DC V DC
• Input current:
  • 0.78–0.34 A; 4.5 A
• Output current – 2.7 A
• Maximum power consumption – 86 W (including battery charge)
• Operating temperature – from -20 to +50 °С
• Storage temperature – from -40 to +70 °С
• Operating humidity – no more than 80%
• Cooling – active, 2 fans
• Dimensions (WxHxD), mm – 430×44х280
• Weight – 3.98 kg