26 Ports:
L2+ Managed Fast Ethernet Switch
24* 10/100BaseTX + 2* Giga Copper/SFP Combo
BES-M242C-A is a managed L2+ Fast Ethernet switch that supports SNMP, Web and CLI
management with 26 ports of 24*10/100TX and 2* Gigabit Copper/SFP combo ports .It is a standard
switch that meets all IEEE 802.3/u/x/z Gigabit, Fast Ethernet specifications. In addition, the switch
implements DHCP Option 82, the QoS (Quality of Service) , Spanning Tree, VLAN , Port Trucking,
Bandwidth Control, Port Security, SNMP/RMON and IGMP Snooping capability via the intelligent
software. It is suitable for both metro-LAN and office application
QoS with four priority queues
The QoS(Quality Of Service) feature provides
four internal queues to support four different
classifications of traffic. High priority packet streams
experience less delay inside the switch, which
supports lower latency for certain delay-sensitive
traffic. The BES-M242C-A can classify the packet as
one of the four priorities according to vip port, 802.1p
priority tag, DiffServ and/or IP TOS. The QoS operate
at full wire speed. The actual scheduling at each
egress port can be based upon a strict priority,
weighted round robin or a mix of both.
Q-in-Q VLAN for performance & security
The VLAN feature in the switch offers the
benefits of both security and performance. VLAN is
used to isolate traffic between different users and
thus provides better security. Limiting the broadcast
traffic to within the same VLAN broadcast domain
also enhances performance. VLAN support
enabling advanced techniques such as
“802.1Q-in-1Q” to be deployed.
Mac-based LACP with Automatic Link
Dynamic fail-over means packets will not get
assigned to any trunk member port that has failed. If
one of the ports were to fail, traffic will automatically
get distributed to the remaining active ports.
Port Mirroring
This mechanism helps track network errors or
abnormal packet transmission without interrupting
the flow of data. Allow ingress traffic to be monitored
by a single port that is defined as mirror capture port.
The mirror capture port can be any 10/100 port,
10/100/1000 port. Mirroring multiple ports is possible
but can create congestion at the mirror capture port.
Isolated Group, Provide Secure for Certain Ports
The isolated group feature allows certain ports to
be designated as protected. All other ports are
non-isolated. Traffic between isolated group
members are blocked. Traffic can only be sent from
isolated group to non-isolated group.
802.1x Access Control Improve Network Security
802.1x features enable user authentication for
each network access attempt. Port security features
allow you to limit the number of MAC addresses per
port in order to control the number of stations for
each port. Static MAC addresses can be defined for
each port to ensure only registered machines are
allowed to access. By enabling both of these
features, you can establish an access mechanism
based on user and machine identities, as well as
control the number of access stations.
802.1D Compatible & 802.1w Rapid Spanning Tree Broadcast/Multicast/unknown-unicast Storm
For mission critical environments with multiple
To limit too many broadcast/multicast
switches supporting STP, you can configure the
unknown-unicast flooding in the network,
switches with a redundant backup bridge path, so
broadcast/multicast storm control is used to restrict
transmission and reception of packets can be
excess traffic. Threshold values are available to
guaranteed in event of any fail-over switch on the
control the rate limit for each port. Packets are
discarded if the count exceeds the configured upper
IP-MAC-Port Binding
Access Control List (ACL)
The IP network layer uses a four-byte address. The
The ACLs are divided into EtherTypes. IPv4, ARP
Ethernet link layer uses a six-byte MAC address.
protocol, MAC and VLAN parameters etc. Here we
Binding these two address types together allows the
will just go over the standard and extended access
transmission of data between the layers. The primary lists for TCP/IP. As you create ACEs for ingress
purpose of IP-MAC binding is to restrict the access to classification, you can assign a policy for each port,
a switch to a number of authorized users. Only the
the policy number is 1-8, however, each policy can be
authorized client can access the Switch’s port by
applied to any port. This makes it very easy to
checking the pair of IP-MAC Addresses and port
determine what type of ACL policy you will be working
number with the pre-configured database. If an
unauthorized user tries to access an IP-MAC binding
enabled port, the system will block the access by
dropping its packet
Standard compliance
IEEE 802.3 10Base-T Ethernet(twisted-pair copper)
IEEE 802.3u 100Base-TX Ethernet(twisted-pair copper)
IEEE 802.3ab 1000Base-TX Ethernet(twisted-pair copper)
IEEE 802.3z 1000Base-TX/FX Ethernet
IEEE 802.3x flow control capability
ANSI/IEEE 802.3 auto-negotiation
IEEE 802.1q VLAN
Subscriber Interface
1-24 10/100Mbps Fast Ethernet ports.
25,26 are Gigabit TP/(SFP) Fiber auto sense
Auto-Negotiation and Auto-MDIX
Backpressure flow control for half duplex.
802.3x flow control for full duplex.
Connector: 24 RJ-45 and 25,26 dual media (RJ-45/SFP)
 Performance
 Switching capacity:
 Non-blocking switch fabric supports up to 24FE+2GbE, ports
8 K MAC addresses
256k packet buffer and 128k control memory
With 64 bytes packets throughput is 6.547Mpps.
 VSM(Virtual Stacking Management)
 Supports 16 devices stacking
 Multiple switches can be managed via one IP address, just like software stacking
 Low cost and easy to establish network environment, no extra hardware required
 Not center on the physical location of wiring closets
Supports SVL/IVL configuration to meet your VLAN requirement
Port-base VLAN
IEEE802.1q tag-base VLAN, 4094 max, up to 256 active VLANs included static plus dynamic
IEEE802.1q tag-base VLAN
Flooding unknown vlan frame setting, can flood packet with some vlan tag associated to a
invalid/inactive vlan
 Q-in-Q is an efficient method for enabling Subscriber Aggregation
 Port Based, 802.1p , TOS and Diffserv(IPv4/IPv6) based QoS packet classification
Supports four level priority queues to prioritize in-bound and out-bound traffic
Supports two scheduling, WRR and Strict
 Supports priority in a Q-in-Q tag
Broadcast Storm
 Multicast/Broadcast/Unknown-Unicast Storm suppression.
Port Mirroring
 Support 1: N RX port mirroring
In tag-base VLAN, supports egress/ingress packet filter
Supports port sniffer function with 3 modes: (TX Monitor Mode, RX Monitor Mode and
TX-RX pair Monitor Mode)
Isolated Group
 Provide one group allows certain ports to be designated as protected.
Rate Limit
Ingress rate limit:
Port 1~24: 64K up to 100Mbps
Port 25, 26: 64K up to 1000Mbps
Egress rate limit:
Port 1~24: 64K up to 100Mbps
Port 25, 26: 64K up to 1000Mbps
 Protocol
12 Fast Ethernet +1 Gigabit Ethernet groups
Per-group max 8 member
Provides DA, SA and DA+SA Mac-based trucking with automatic link fail-over
 802.1q with GVRP/ GARP
 Multicasting
 Supports IGMP snooping including active and passive mode
 802.1d/1w/1s STP
 Network Security
802.1x access control
Isolated group
Management Access Policy Control
Static mac, to limit which mac addresses can pass through or not
Mac addresses learning limit, to set up the maximum amount of mac that each port can
Access control List
IP-mac-port binding
DHCP option 82
 Snmpv1,v2c Network Management
 RFC 1213 MIB (MIB-II)
 Interface MIB
 Statistics Group 1
 Address Translation MIB
 History Group 2
 Alarm Group 3
 Event Group 9
 RFC 1493 Bridge MIB
 RFC 1643 Ethernet MIB
 Enterprise MIB
Hardware Spec
Detailed Description
100240 VAC
5060 Hz
Ambient Temperature
0 to 40C
5% to 90%
44(H)  442(W)  209(D) mm
Complies with FCC Part 15 Class A & CE Mark including EN 55022
and EN61000
Order Information.
Detailed Description
26-Port L2+ Managed Fast Ethernet Switch (24* 10/100BaseTX + 2* Giga
Copper/SFP Combo