Cisco Small Business 300 Series Managed Switches: Overview
Cisco 300 Series Switches deliver the ideal combination of price, performance, and capabilities in a solution designed specifically for small businesses. This broad portfolio of affordable, managed switches provide a powerful foundation to support your business network. Cisco 300 Series Switches offer:High Performance and Reliability: Get the high availability and performance you need to support vital business applications while reducing downtime. Advanced Features: Control network traffic with advanced features such as quality of service (QoS), Layer 3 static routing and IPv6 support. Easy Setup and Management: Intuitive browser-based tools, mass deployment capabilities, and consistent features across all models simplify setup and configuration. An Eco-Friendly Solution: Switches optimize power usage for energy efficiency without compromising performance. Peace of mind: All Cisco 300 Series Switches are protected for the life of the product by the Cisco Limited Lifetime Hardware Warranty, which includes next-business-day advance replacement.
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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 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 VLAN Support for up to 256 VLANs simultaneously (out of 4096 VLAN IDs) 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 Voice VLAN Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS Generic VLAN Registration Protocol (GVRP)/Generic Attribute Registration Protocol (GARP) Protocols for automatically propagating and configuring VLANs in a bridged domain 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 256 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 Layer 3 IPv4 routing Wirespeed routing of IPv4 packets Up to 32 static routes and up to 32 IP interfaces Classless Inter-Domain Routing (CIDR) Support for CIDR 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 Security Secure Shell (SSH) Protocol SSH secures Telnet traffic to and from the switch; 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 Layer 3 isolation* Allow/disallow routing between IP subnets or directly connected IP networks 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 Locks MAC addresses to ports, and limits the number of learned MAC addresses RADIUS/TACACS+ Supports RADIUS and TACACS authentication. Switch functions as a client Storm control Broadcast, multicast, and unknown unicast DoS prevention DoS attack prevention Congestion avoidance A TCP congestion avoidance algorithm is required to minimize and prevent global TCP loss synchronization. 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 Quality of Service Priority levels 4 hardware queues 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)/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 |
