Cisco 350X Series Stackable Managed Switches

Performance

Switching capacity and forwarding rate

All switches are wire speed and nonblocking

Product name

Capacity in Mpps (64-byte packets)

Switching capacity (Gbps)

SG350X-8PMD

29.76

80

SG350X-12PMV

148.80

200

SG350X-24

95.23

128

SG350X-24P

95.23

128

SG350X-24MP

95.23

128

SG350X-24PD

104.16

140

SG350X-24PV

142.85

192

SG350X-48

130.94

176

SG350X-48P

130.94

176

SG350X-48MP

130.94

176

SG350X-48PV

178.56

240

SG350XG-2F10

178.56

240

SG350XG-24F

357.12

480

SG350XG-24T

357.12

480

SG350XG-48T

714.24

960

SX350X-08

119.05

160

SX350X-12

178.56

240

SX350X-24F

357.12

480

SX350X-24

357.12

480

SX350X-52

755.81

1040

Layer 2 switching

Spanning Tree Protocol

Standard 802.1d spanning tree support

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

Multiple spanning tree instances using 802.1s (MSTP); 8 instances are supported

Per-VLAN Spanning Tree Plus (PVST+); 126 instances are supported

Rapid PVST+ (RPVST+); 126 instances are supported

Port grouping and link aggregation

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

VLAN

Support for up to 4094 active VLANs simultaneously; port-based and 802.1Q tag-based VLANs; MAC-based VLAN

Management VLAN

Private VLAN with promiscuous, isolated, and community port

Guest VLAN, unauthenticated VLAN, protocol-based VLAN, IP subnet-based VLAN, CPE VLAN

Dynamic VLAN assignment using RADIUS server along with 802.1X client authentication

Voice VLAN

Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Auto voice capabilities deliver networkwide 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. This feature is also known as Multicast VLAN Registration (MVR)

VLAN translation

Support for VLAN One-to-One Mapping. In VLAN One-to-One Mapping, on an edge interface, Customer VLANs (C-VLANs) are mapped to service provider VLANs (S-VLANs) and the original C-VLAN tags are replaced by the specified S-VLAN

Q-in-Q

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

Selective Q-in-Q

Selective Q-in-Q is an enhancement to the basic Q-in-Q feature and provides, per edge interface, multiple mappings of different C-VLANs to separate S-VLANs

Selective Q-in-Q also allows configuration of the EtherType (TPID) of the S-VLAN tag

Layer 2 protocol tunneling over Q-in-Q is also supported

GVRP/GARP

Generic VLAN Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP) enable automatic propagation and configuration of VLANs in a bridged domain

UDLD

Unidirectional Link Detection (UDLD) monitors physical connections to detect unidirectional links caused by incorrect wiring or port faults to prevent forwarding loops and blackholing of traffic in switched networks

DHCP relay at Layer 2

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

IGMP (versions 1, 2, and 3) snooping

Internet Group Management Protocol (IGMP) limits bandwidth-intensive multicast traffic to only the requesters; it supports 4000 multicast groups (source-specific multicasting is also supported)

IGMP querier

Used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router

HOL blocking

Head-Of-Line (HOL) blocking

Layer 3

IPv4 routing

Wirespeed routing of IPv4 packets

Up to 990 static routes and up to 128 IP interfaces

Wirespeed IPv6 static routing

Up to 245 static routes and up to 106 IPv6 interfaces

Layer 3 interface

Configuration of Layer 3 interface on physical port, LAG, VLAN interface, or loopback interface

CIDR

Support for Classless Interdomain Routing (CIDR)

DHCP server

Switch functions as an IPv4 DHCP server serving IP addresses for multiple DHCP pools and scopes

Support for DHCP options

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

Stacking

Hardware stack

Up to four units in a stack. Up to 208 ports managed as a single system with hardware failover

High availability

Fast stack failover delivers minimal traffic loss. Supports link aggregation across multiple units in a stack

Plug-and-play stacking configuration and management

Master and backup for resilient stack control

Auto-numbering

Hot swap of units in stack

Ring and chain stacking options, auto-stacking port speed, flexible stacking port options

High-speed stack interconnects

Cost-effective high-speed 10G fiber and copper interfaces. Support LAG as stacking interconnects for even higher bandwidth

Hybrid stack

A mix of SG350X, SG350XG, and SX350X switches in the same stack (Gigabit and 10 Gigabit Ethernet)

Security

SSH

Secure Shell (SSH) is a secure replacement for Telnet traffic. Secure Copy (SCP) also uses SSH. SSH versions 1 and 2 are supported

SSL

Secure Sockets Layer (SSL) encrypts all HTTPS traffic, allowing secure access to the browser-based management GUI in the switch

IEEE 802.1X (authenticator role)

RADIUS authentication and accounting, MD5 hash, guest VLAN, unauthenticated VLAN, single- and multiple-host mode, and single and multiple sessions

Supports time-based 802.1X dynamic VLAN assignment

IEEE 802.1X supplicant

A switch can be configured to act as a supplicant to another switch. This enables extended secure access in areas outside the wiring closet (such as conference rooms)

Web-based authentication

Web-based authentication provides Network Admission Control (NAC) through a web browser to any host devices and operating systems

STP BPDU Guard

A security mechanism to protect the networks from invalid configurations. A port enabled for Bridge Protocol Data Unit (BPDU) Guard is shut down if a BPDU message is received on that port. This avoids accidental topology loops

STP Root Guard

Prevents edge devices not in the network administrator’s control from becoming Spanning Tree Protocol root nodes

DHCP snooping

Filters out DHCP messages with unregistered IP addresses and/or from unexpected or untrusted interfaces. This prevents rogue devices from behaving as DHCP servers

IP Source Guard (IPSG)

When IPSG is enabled at a port, the switch filters out IP packets received from the port if the source IP addresses of the packets have not been statically configured or dynamically learned from DHCP snooping. This prevents IP address spoofing

Dynamic ARP Inspection (DAI)

The switch discards ARP packets from a port if there are no static or dynamic IP/MAC bindings or if there is a discrepancy between the source or destination address in the ARP packet. This prevents man-in-the-middle attacks

IP/MAC/Port Binding (IPMB)

The preceding features (DHCP snooping, IPSG, and DAI) work together to prevent DoS attacks in the network, thereby increasing network availability

Secure Core Technology (SCT)

Makes sure that the switch will receive and process management and protocol traffic no matter how much traffic is received

Secure Sensitive Data (SSD)

A mechanism to manage sensitive data (such as passwords, keys, and so on) securely on the switch, populating this data to other devices and secure auto-configuration. Access to view the sensitive data as plain text or encrypted is provided according to the user-configured access level and the access method of the user

Trustworthy systems

Trustworthy systems provide a highly secure foundation for Cisco products

Run-time defenses (Executable Space Protection [X-Space], Address Space Layout Randomization [ASLR], Built-In Object Size Checking [BOSC])

Image signing and Secure Boot on select models (SG350X-12PMV, SG350X-24PV, SG350X-48PV, and all SX350X models)

Private VLAN

Provides security and isolation between switch ports, which helps ensure that users cannot snoop on other users’ traffic; supports multiple uplinks

Port security

Provides the ability to lock source MAC addresses to ports and limit the number of learned MAC addresses

RADIUS and TACACS+

Supports RADIUS and TACACS authentication. Switch functions as a client

RADIUS accounting

The RADIUS accounting functions allow data to be sent at the start and end of services, indicating the amount of resources (such as time, packets, bytes, and so on) used during the session

Storm control

Broadcast, multicast, and unknown unicast

DoS prevention

Denial-of-Service (DoS) attack prevention