Cisco SG-300 Series Switches

Performance

Switching capacity and forwarding rate

All switches are wire-speed and non-blocking

Model Name

Capacity in Millions of Packets per Second (mpps) (64-byte packets)

Switching Capacity in Gigabits per Second (Gbps)

SG300-10PP

SG300-20

40.0

SG300-28

41.67

56.0

Layer 2 Switching

Spanning Tree Protocol (STP)

Standard 802.1d Spanning Tree support

Fast convergence using 802.1w (Rapid Spanning Tree [RSTP]), enabled by default

8 instances are supported

Multiple Spanning Tree instances using 802.1s (MSTP)

Port grouping

Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)

VLAN

Support for up to 4096 VLANs simultaneously Port-based and 802.1Q tag-based VLANs MAC-based VLAN

Management VLAN

Private VLAN Edge (PVE), also known as protected ports, with multiple uplinks

Guest VLAN Unauthenticated VLAN

Dynamic VLAN assignment via Radius server along with 802.1x client authentication

CPE VLAN

Voice VLAN

Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS.

Auto voice capabilities deliver network-wide zero touch deployment of voice endpoints and call control devices.

Multicast TV VLAN

Multicast TV VLAN allows the single multicast VLAN to be shared in the network while subscribers remain in separate VLANs (Also known as MVR)

Q-in-Q VLAN

VLANs transparently cross a service provider network while isolating traffic among customers

Generic VLAN Registration Protocol (GVRP)/Generic Attribute Registration Protocol (GARP)

Protocols for automatically propagating and configuring VLANs in a bridged domain

Unidirectional Link Detection (UDLD)

UDLD monitors physical connection to detect unidirectional links caused by incorrect wiring or cable/port faults to prevent forwarding loops and blackholing of traffic in switched networks

Dynamic Host Configuration Protocol (DHCP) Relay at Layer 2

Relay of DHCP traffic to DHCP server in different VLAN. Works with DHCP Option 82

Internet Group Management Protocol (IGMP) versions 1, 2, and 3 snooping

IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 1K multicast groups (source-specific multicasting is also supported)

IGMP Querier

IGMP querier is used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router

Head-of-line (HOL) blocking

HOL blocking prevention

Jumbo Frames

Up to 9K (9216) bytes

Layer 3

IPv4 routing

Wirespeed routing of IPv4 packets

Up to 512 static routes and up to 128 IP interfaces

Classless Inter-Domain Routing (CIDR)

Support for CIDR

Layer 3 Interface

Configuration of layer 3 interface on physical port, LAG, VLAN interface or Loopback interface

DHCP relay at Layer 3

Relay of DHCP traffic across IP domains

User Datagram Protocol (UDP) relay

Relay of broadcast information across Layer 3 domains for application discovery or relaying of BootP/DHCP packets

DHCP Server

Switch functions as an IPv4 DHCP Server serving IP addresses for multiple DHCP pools/scopes

Support for DHCP options

Power over Ethernet (PoE)

802.3af PoE and 802.3at PoE+ delivered over any of the RJ-45 ports within the listed power budgets

Switches support 802.3at PoE+, 802.3af, and Cisco pre-standard (legacy) PoE. Maximum power of 30.0W to any 10/100 or Gigabit Ethernet port for PoE+ supported devices and 15.4W for PoE supported devices, until the PoE budget for the switch is reached. The total power available for PoE per switch is as follows:

Model Name

Power Dedicated to PoE

Number of Ports That Support PoE

SG300-10PP

62W (PoE+ supported)

8

SG300-52MP

740W (PoE+ supported)

48

Ports

Model Name

Total System Ports

RJ-45 Ports

Combo Ports
(RJ-45 + SFP)

SG300-10PP

10 Gigabit Ethernet

8 Gigabit Ethernet

2 Gigabit Ethernet combo

SG300-52MP

52 Gigabit Ethernet

50 Gigabit Ethernet

2 Gigabit Ethernet combo

SG300-20

20 Gigabit Ethernet

18 Gigabit Ethernet

2 Gigabit Ethernet combo

SG300-28

28 Gigabit Ethernet

26 Gigabit Ethernet

2 Gigabit Ethernet combo

Buttons

Reset button

Cabling type

Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX; UTP Category 5

Ethernet or better for 1000BASE-T

LEDs

System, Link/Act, PoE, Speed, LED power saving option

Flash

16 MB

CPU memory

128 MB

Environmental

Dimensions
(W x H x D)

SG300-10PP – 11 x 1.45 x 6.7 in. (279.4 x 44.45 x 170 mm)

SG300-20 – 17.3 x 1.45 x 7.97 in. (440 x 44.45 x 202.5 mm)

SG300-28 – 17.3 x 1.45 x 10.1 in. (440 x 44.45 x 257 mm)

SG300-52MP – 17.3 x 1.45 x 13.78 in. (440 x 44.45 x 350 mm)

Unit weight

SG300-10PP – 2.73 lb (1.24kg)

SG300-20: 4.78 lb (2.17 kg)

SG300-28: 7.23 lb (3.28 kg)

SG300-52MP: 11.73 lb (5.32 kg)

Power

100-240V 47-63 Hz, internal, universal – SG300-20, SG300-28

100-240V 50-60 Hz, internal, universal – SG300-52MP

100-240V 50-60 Hz, 2A, external – SG300-10PP

Certification

UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A

Operating temperature

SG300-20 and SG300-28 – 32°to 104°F (0°to 40°C)

SG300-52MP and SG300-10PP -32°to 113°F (0°to 45°C)

Storage temperature

–4°to 158°F (–20°to 70°C)

Operating humidity

10% to 90%, relative, noncondensing

Storage humidity

10% to 90%, relative, noncondensing