FSW-848-4SFP+

Code 287766

Managed swithes

The FSW-848-4SFP+ switch is a high-density Layer 2+ switching solution specifically engineered for aggregation and secondary distribution segments within complex network architectures. The hardware architecture is optimized for critical multicast traffic management, ensuring peak efficiency in the delivery of carrier-grade IPTV services sourced from professional Headend systems such as 3DG-FLEX and GALAXIA. Advanced IGMP Snooping integration enables dynamic traffic segmentation, preventing intra-VLAN packet flooding and ensuring stream integrity for UHD video surveillance and low-latency high-definition streaming.

The device's hardware configuration features 48 Gigabit Ethernet interfaces for massive network service connectivity, complemented by 4 x 10Gbps SFP+ slots dedicated exclusively to high-bandwidth uplink functions or hardware stacking implementation. This stacking capability, restricted to devices within the same series, allows for centralized logical management via a single IP address, drastically simplifying routine maintenance operations and enhancing overall network backbone resilience.

Technical chars

Layer 2+
48 ports 10/100/1000 GE
4 ports 10G/1G SFP+
Switching capacity: 176Gbps
Forwarding rate: 132Mpps
Native Multicast/IGMP Snooping support

Layer 2 Multicast Architecture

Layer 2 Optimization and Multicast Management

IGMP Snooping (v1/v2/v3): Performs Deep Packet Inspection (DPI) of control messages for the dynamic generation of the Multicast Forwarding Table (MFT). On this 48-port architecture, it prevents intra-VLAN flooding by isolating streams exclusively to interfaces with an active Join Report, preserving access bandwidth and reducing computational overhead on client devices.
IGMP Fast Leave: Enables immediate forwarding termination upon detection of a Leave message, bypassing standard query response intervals. This function is critical for optimizing convergence times during channel switching (zapping) in high-density networks and preventing bandwidth spikes that cause jitter or pixel blocking.
MVR (Multicast VLAN Registration): Optimized for large-scale Multi-tenant/Hospitality scenarios. It allows sharing a single Multicast Source VLAN (e.g., from a 3DG-FLEX headend) across multiple users, eliminating flow duplication in the backbone while maintaining unicast traffic isolation.

Access Control (ACL) and Security

IGMP Filter: Granular per-port policies that restrict subscriptions to specific Multicast Group IPs. It ensures content security for Pay-TV and protects the switch's Control Plane from DoS attacks based on IGMP flooding.
Transparent Pass-through: A bypass mode for control protocols on specific VLANs or interfaces, allowing video traffic to transit as native broadcast within the Layer 2 domain.
Hardware Protection & Storm Control: Architecture featuring hierarchical scheduling and mechanisms for the automatic suppression of anomalous Broadcast, Multicast, and Unknown Unicast traffic. Includes a multi-level defense suite against DoS attacks and RBAC (Role-Based Access Control) for secure CLI management.

QoS Policies and Performance

Bandwidth Control: Traffic management via CAR (Committed Access Rate) on a per-port or per-flow basis to deliver guaranteed bandwidth.
Scheduling Algorithms: Advanced hardware queue management using SP (Strict Priority), WRR (Weighted Round Robin), or hybrid SP+WRR configurations for real-time traffic prioritization.

Functions
		FSW-848-4SFP+
Code		287766
LAN input		48 x 10/100/1000M auto-negotiation, 4 x SFP+
RJ45 console	RJ45	1
Backplane	Gbps	176
Forwarding rate	Mpps	132
Fans		2
Noise@25°C	dBA	45
Forwarding mode		Store-forward
Flash memory	MB	32
DRAM memory	MB	256
MAC		32k
Buffer size	MB	1.5
VLAN Interface		64
Routing table	RIB	512
MTBF	h	>200000
Management		Console, Telnet, SSHv1/2,Web-GUI: HTTP, HTTPS/SSL, SNMP v1/v2c/v3, RMON, SNMP alarm/inform/traps, Upload and download of FTP/TFTP files, Debugging, Syslog for alarm/notification/command/debug, NTP, SPAN, RSPAN (1:1 and N:1 mirror), LLDP, LLDP-MED, ZTP (Zero Touch Provisioning), Optical DDM
Applications		Spanning Tree: 802.1D (STP), 802.1W (RSTP) and 802.1S (MSTP), BPDU protection, root protection and ring protection, L2PT for BPDU IPv6: ICMPv6, DHCPv6, ACLv6 and IPv6 Telnet, IPv6 QoS, Path MTU Discovery, MLD snooping, IPv6 Neightbor Discovery Reliablity: Static/LACP link aggregation, 64 groups, ups 8 ports in one group, EAPS and ERPS, ISSU MAC switching: Static configuration and dynamic MAC learning(16K), MAC browsing and removal, Configurable aging time of the MAC address, Limited number of learnable MAC addresses, MAC filtration, Black-hole MAC list Jumbo frame: 9k
VLAN		4096 VLAN IDs, 4094 active VLAN, GVRP, 1:1 and N:1 VLAN Mapping, QinQ and selective QinQ, Private VLAN, Voice-VLAN
MULTICAST		IGMP v1/v2/v3 (1024 groups), IGMP Snooping, IGMP Fast Leave, Multicast group policy and multicast number limit, Multicast filtering, MVR, Support for transparent passing of multicast traffic without IGMP snooping in certain port and VLAN
QoS		Traffic classification of port/L2~4 protocol headers/VLAN/CoS/DSCP CAR traffic control 802.1P/DSCP priority mapping and remark Multiple queuing algorithms such as SP, WRR or SP+WRR Tail-Drop, WRED Traffic supervision and traffic shaping 8 queues per port
DHCP		DHCP server, relay, client, snooping
Security		L2~L4 ingress/egress ACL Anti-DOS/IP spoofing/TCP/ping/SYN/ICMP flood attacks Broadcast/multicast/unknown-unicast storm-control Port isolation Port Security, MAC address limitation, IP+MAC+port binding DHCP Snooping, DHCP Option 82 DAI(Dynamic ARP Inspection) IPSG(IP Source Guard) IEEE 802.1x certification MAC-based authentication AAA Radius, TACACS+ Multiple user privileges
Specifications
Power supply voltage	V	100-240 (50-60Hz)
Current consumption	W	<45
Operating temperature	°C	0 to +50
Relative humidity	%	from 10 to 90 (without condensation)
Dimensions and packaging
Packing		Power cable (Schuko plug) Rack mounting kit (screws and cage nuts not included) RJ45 to RS232 female serial cable
Pieces		1
EAN code		8016978108459
Packaging dimensions	mm	576 x 448 x 94
Product dimensions	mm	440 x 280 x 44
Packaging weight	kg	5.5
Weight	kg	4.3

Documentation

Datasheet

High resolution image

Warranty Q2 classification - 2 years from date of purchase or 30 months from date of manufacture

Conformity
Declaration of Conformity available on ce.fracarro.com

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