Cisco Sx350 Series Fully Managed Switches Product Specifications

Switching Capacity and forward rate

All switches are wire speed and non blocking

Model Name

SF350-48

13.10

17.6

SF350-48P

13.10

17.6

SF350-48MP

13.10

17.6

SG350-10

14.88

20.0

SG350-10P

14.88

20.0

SG350-10MP

14.88

20.0

SG355-10MP

14.88

20.0

SG350-28

41.67

56.0

SG350-28P

41.67

56.0

SG350-28MP

41.67

56.0

Spanning Tree Protocol (STP)

• Standard 802.1d Spanning Tree support

• Fast convergence using 802.1w or 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)

• Up to 8 groups

• Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation

Virtual Local Area Network (VLAN)

• Support for up to 4096 VLANs simultaneously

• Port-based and 802.1Q tag-based VLANs

• Media Access Control (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

• Customer Premises Equipment (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 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, also known as Multicast VLAN Registration(MVR)

Q-in-Q VLAN

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

Generic VLAN Registration Protocol (GVRP) and 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 Frame

Up to 9K (9216) bytes

IPv4 routing

• Wirespeed routing of IPv4 packets

• Up to 512 static routes and up to 128 IP interfaces

Classless Interdomain 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

Secure Shell (SSH) Protocol

SSH is a secure replacement for Telnet traffic. Secure Copy Protocol (SCP) also uses SSH. SSH v1 and v2 are supported.

Secure Sockets Layer (SSL)

SSL support: Encrypts all HTTPS traffic, allowing highly secure access to the browser-based management GUI in the switch.

IEEE 802.1X (Authenticator Role)

• 802.1X: RADIUS authentication and accounting, MD5 hash; guest VLAN; unauthenticated VLAN, single/multiple host mode and single/multiple sessions

• Supports time-based 802.1X

• Dynamic VLAN assignment

Web-based authentication

Web-based authentication provides network admission control through web browser to any host devices and operating systems.

STP Bridge Protocol Data Unit (BPDU) Guard

A security mechanism to protect the network from invalid configurations. A port enabled for BPDU Guard is shut down if a BPDU message is received on that port.

STP Root Guard

This prevents edge devices not in the control of the network administrator 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 IP Source Guard 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 Address Resolution Protocol (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 addresses in the ARP packet. This prevents man-in-the-middle attacks.

IP/MAC/Port Binding (IPMB)

The preceding features (DHCP Snooping, IP Source Guard, and Dynamic ARP Inspection) 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 autoconfig. Access to view the sensitive data as plaintext or encrypted is provided according to the user-configured access level and the access method of the user.

Layer 2 isolation Private VLAN Edge (PVE) with community VLAN

PVE (also known as protected ports) provides Layer 2 isolation between devices in the same VLAN, supports multiple uplinks.

Port Security

The ability to lock source MAC addresses to ports and limits the number of learned MAC addresses.

Remote Authentication Dial-In User Service

(RADIUS), Terminal Access Controller Access Control System (TACACS+)

Supports RADIUS and TACACS authentication; switch functions as a client

Storm Control

Broadcast, multicast, and unknown unicast

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.

Denial of Service (DoS) Protection

DoS attack prevention

Access Control Lists (ACLs)

• Support for up to 512 rules

• Drop or rate limit based on source and destination MAC, VLAN ID or IP address, protocol, port, differentiated services code point (DSCP)/IP precedence, TCP/UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag, time-based ACLs supported.

Priority Levels

8 hardware queues per port

Scheduling

Strict priority and Weighted Round-Robin (WRR) queue assignment based on DSCP and class of service (802.1p/CoS)

Class of Service

Port-based; 802.1p VLAN priority-based; IPv4/v6 IP precedence, Type of Service (ToS), and DSCP-based; Differentiated Services (DiffServ); classification and re-marking ACLs, trusted QoS

Rate Limiting

Ingress policer; egress shaping and rate control; per VLAN, per port, and flow-based

Congestion Avoidance

A TCP congestion avoidance algorithm is required to reduce and prevent global TCP loss synchronization

Standards

IEEE 802.3 10BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet, IEEE 802.3ab1000BASE-T Gigabit Ethernet, IEEE 802.3ad LACP, IEEE 802.3z Gigabit Ethernet, IEEE 802.3x Flow Control, IEEE 802.1D (STP, GARP, and GVRP),IEEE 802.1Q/p VLAN, IEEE 802.1w RSTP, IEEE 802.1s Multiple STP, IEEE 802.1X Port Access Authentication, IEEE 802.3af, IEEE 802.3at, RFC 768, RFC 783, RFC 791, RFC 792, RFC 793, RFC 813, RFC 879, RFC 896, RFC 826, RFC 854, RFC 855, RFC 856, RFC 858, RFC 894, RFC 919, RFC 922, RFC 920, RFC 950, RFC 1042, RFC 1071, RFC 1123, RFC 1141, RFC 1155, RFC 1157, RFC 1350, RFC 1533, RFC 1541, RFC 1624, RFC 1700, RFC 1867, RFC 2030, RFC 2616, RFC 2131, RFC 2132, RFC 3164, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC 2576, RFC 4330, RFC 1213, RFC 1215, RFC 1286, RFC 1442, RFC 1451, RFC 1493, RFC 1573, RFC 1643, RFC 1757, RFC 1907, RFC 2011, RFC 2012, RFC 2013, RFC 2233, RFC 2618, RFC 2665, RFC 2666, RFC 2674, RFC 2737, RFC 2819, RFC 2863, RFC 1157, RFC 1493, RFC 1215, RFC 3416

IPv6

• IPv6 host mode

• IPv6 over Ethernet

• IPv6/IPv4 Dual Stack

• IPv6 neighbor and router discovery (ND)

• IPv6 stateless address auto-configuration

• Path maximum transmission unit (MTU) discovery

• Duplicate address detection (DAD)

• ICMP version 6

IPv6 QoS

Prioritize IPv6 packets in hardware

IPv6 ACL

Drop or rate limit IPv6 packets in hardware

• IPv6 First Hop Security

• RA guard

• ND inspection

• DHCPv6 guard

• Neighbor binding table (snooping and static entries)

• Neighbor binding integrity check

Multicast Listener Discovery (MLD v1/2) Snooping

Deliver IPv6 multicast packets only to the required receivers

IPv6 Applications

Web/SSL, Telnet server/SSH, Dynamic Host Configuration Protocol (DHCP) Client, DHCP Autoconfig, Cisco Discovery Protocol (CDP), Link Layer Discovery Protocol (LLDP)

IPv6 Request for Comments (RFCs) Supported

• RFC 4443 (which obsoletes RFC2463) - ICMP version 6

• RFC 4291 (which obsoletes RFC 3513) - IPv6 address architecture

• RFC 4291 - IPv6 addressing architecture

• RFC 2460 - IPv6 specification

• RFC 4861 (which obsoletes RFC 2461) - Neighbor discovery for IPv6

• RFC 4862 (which obsoletes RFC 2462) - IPv6 stateless address auto-configuration

• RFC 1981 - Path MTU discovery

• RFC 4007 - IPv6 scoped address architecture

• RFC 3484 - Default address selection mechanism

• Web browser upgrade (HTTP/HTTPS) and TFTP and upgrade over SCP running over SSH
• Upgrade can be initiated through console port as well
• Dual images for resilient firmware upgrades

EEE Compliance (802.3az)

Supports 802.3az on all copper ports (SG350 models)

Energy Detect

• Automatically turns power off on Gigabit Ethernet and 10/100 RJ-45 ports when detecting a link down

• Active mode is resumed without loss of any packets when the switch detects the link up

Cable length detection

Adjusts the signal strength based on the cable length for Gigabit Ethernet models. Reduces the power consumption for cables shorter than 10m.

Disable port LEDs

LEDs can be manually turned off to save on energy

Jumbo frames

Frame sizes up to 9K (9216) bytes supported on 10/100 and Gigabit interfaces

MAC table

Up to 16K (16384) MAC addresses

Bonjour

The switch advertises itself using the Bonjour protocol

Link Layer Discovery Protocol(LLDP) (802.1ab) with LLDP-MEDExtensions

LLDP allows the switch to advertise its identification, configuration, and capabilities to neighboring devices that store the data in a MIB. LLDP-MED is an enhancement to LLDP that adds the extensions needed for IP phones.

Cisco Discovery Protocol

The switch advertises itself using the Cisco Discovery Protocol. It also learns the connected device and its characteristics via Cisco Discovery Protocol.