Netgear GSM7248

Physical Interfaces

RJ-45 Connectors for 10BASE-T, 100BASE-TX, and 1000BASE-T (Auto Uplink™ on all ports):

GSM7224-200 24 ports

GSM7248-200 48 ports

Small form-factor pluggable (SFP) modules for fiber Gigabit Ethernet interfaces:

GSM7224-200 4 slots

GSM7248-200 4 slots

RS-232 console port

Layer 2 Services

IEEE 802.1Q static VLAN (1024)

IEEE 802.1p Class of Service (CoS)

IEEE 802.1D Spanning Tree Protocol

IEEE 802.1v Protocol VLAN & Port VLAN and MAC-based VLAN

Voice VLAN

Guest VLAN

IP subnet-based VLAN

IEEE 802.1 Q-in-Q

IEEE 802.1w Rapid Spanning Tree

IEEE 802.1s Multiple Spanning Tree

IEEE 802.3ad Link Aggregation (LACP)

IEEE 802.1x port access authentication

IGMP v1, v2, v3 snooping support

IGMP querier

Static multicast filtering

Ingress rate limit in 1 Kbps increments

Weighted round robin (WRR) queue technology

MLD v1, v2 snooping

Layer 3 Services

Static routing

ARP

Security

Access Control Lists (ACL) - MAC, IP, TCP

ACLs: L2/L3/L4

Network storm protection including broadcast multicast and unicast traffic

Protected ports

MAC filtering

Private group

CoS

Diffserv QoS (RFC 2998)

IEEE 802.1x port access authentication

Port security

DoS

DHCP snooping

IP Source Guard

Dynamic ARP inspection

RADIUS (RFC 2865)

RADIUS accounting (RFC 2866)

TACACS+

Switch Management Specifications

SNMP v1, v2c, v3 with multiple IP addresses

RFC 1157, 1902-1907

RFC 768 UDP

UDP relay

RFC 854-859 telnet

RFC 951 BOOTP

RFC 1213 MIB II

RFC 1757 RMON groups 1,2,3, and 9

RFC 1215 SNMP Traps

RFC 1493 Bridge MIB

RFC 1643 Ethernet Interface MIB

RFC 1534 DHCP and BOOTP interoperation

RFC 2131, 2132 DHCP and BOOTP

Private Enterprise MIB

Port mirroring support (many-to-one)

DHCP/BOOTP relay-primary and backup (RFC 3046, option 82)

RFC 2030 Simple Network Time Protocol (SNTP)

DHCP server

DHCP L2 relay

IEEE 802.1AB Link Layer Discovery Protocol (LLDP)

ANSI/TIA-1057 LLDP Media Endpoint Discovery (LLDP-MED)

DHCP relay (with backup servers)

GARP/GVRP/GMRP

SYSLOG

TFTP, SFTP, HTTP, SCP, or local USB flash firmware upgrade

Port description

RFC 1519 CIDR

Proxy ARP

DNS lookup

Single IP Address Management (firmware version 7.3 or higher)

Manage up to 48 fully managed switches

Feature can be used with the following models:

FSM726E, FSM7226RS, FSM7250RS

FSM7328S, FSM7352S, FSM7328PS, FSM7352PS

GSM7224R, GSM7248R

GSM7328S, GSM7328FS, GSM7352S

FSM726v3

GSM7224-200

GSM7248-200

Performance Specifications

Forwarding modes: Store-and-forward

Bandwidth:

• GSM7224-200: 48 Gbps 35.7 Mpps
• GSM7248-200: 96 Gbps 71.4 Mpps
• Switch latency: 20 us for 64-byte frames (1 G to 1 G)
• System memory: 128 MB

Packet buffer memory:

• GSM7224-200: max support 0.75 MB buffer memory
• GSM7248-200: max support 1.5 MB buffer memory
• Code storage (flash): 32 MB
• Address database size: 8 K media access control (MAC) addresses
• Number of VLANs: 1024 (1-4093)
• Number of trunks: 64
• Number of queues: 8
• Number of static route: 32
• Number of routed VLANs: 32
• Number of ARP entries: 480
• Number of ACL rules: 224
• Jumbo frame support: up to 9 K packet size

Acoustic noise:

• GSM7224-200: 38.6 dB
• GSM7248-200: 48.8 dB

Heat dissipation:

• GSM7224-200: 131.439 BTU/hr
• GSM7248-200: 244.101 BTU/hr

Mean time between failures (MTBF):

• GSM7224-200: 239,032 hours (~27 years)
• GSM7248-200: 162,303 hours (~19 years)

User Interfaces

Command Line Interface (CLI) via console port (5 sessions)

Web-based management via embedded HTTP server protected with Secure Sockets Layer (SSLv3) or Transport Layer Security (TLS v1)

Telnet remote login (5 sessions) securable with Secure Shell (SSH v1.5, v2)

LEDs

• Per port: Speed, link, activity
• Per device: Power, fan, RPS status

Network Standards Compatibility

IEEE 802.3i 10BASE-T

IEEE 802.3u 100BASE-TX, 100BASE-FX

IEEE 802.3ab 1000BASE-T

IEEE 802.3z 1000BASE-X

IEEE 802.3x flow control

Physical Specifications

Dimensions (w x d x h): 440 x 205 x 43 m