Skip to content Types of Switches Modular vs. Fixed Managed vs. Smart [] vs. Unmanaged Stackable vs. Standalone Edge Switches Features of Switches Management Interface Cable Diagnostics QoS (Quality of Service) EEE (Energy Efficient Ethernet) PoE (Power over Ethernet)802.3af – Power up to 15.4 Watts/port. 802.3at (PoE+) – Power up to 30 Watts/port. SNMP (Simple Network Management Protocol) RMON (R emote Network Mon itoring) VLANs 802.1x (Endpoint Authentication) ACLs (Access Control Lists)Flexible Dropping Rate Limiting Mirroring Logging by various factors (L2, L3, TCP/UDP port nums., etc.) 802.1q/TOS/DSCP L2 Switching L3 IP Routing Network Storm Control DoS (Denial of Service) ProtectionDynamic ARP Inspection IPv4 DHCP Snopping IPv6 First Hope Security w/RA Guard ND Inspection Neighbor Binding Integrity Control Plane Policing (CoPP) 802.1x VRRP (Virtual Router Redundancy Protocol) Link Aggregation Spanning Tree Root Guard BPDU Guard IGMP and MLD Snopping Querier functions for optimizing IPv4/v6 multicast traffic TCP Congestion Avoidance 4 or 8 Queues to Treat Traffic Differently by Importance Setting / Tagging Traffic by L2 (802.1p) or L3 (DSCP/TOS) Rate Limiting Traffic Device Discovery TroubleshootingVLAN MonitoringPort Monitoring Traceroute Ping Syslog Cable Diagnostics RMON Unicast Multicast Netflow/SFlow MPLS/VRF Support SpeedFast Ethernet (10/100 Mbps) Gigabit Ethernet (10/100/1000 Mbps) Ten Gigabity (10/1000/1000/10000 Mbps) Uplink Ports Downlink Ports – Connect to end users. Uplink Ports – Connect to switches, other network infrastructure. Number of Ports – Typically 5, 8, 10, 16, 24, 28, 48, 52. Type of PortsCopper / RJ-45: 100 meters. Fiber SFP: 40 kilometers. Static Routing Policy Based Routing ANSI/TIA-1057: LLDP-Media Endpoint Discover (MED) IEEE 802.1AB: Link Layer Discovery Protocol (LLDP ) IEEE 802.1Q: Virtual LANs with Port-Based VLANs IEEE 802.1p: Ethernet Priority with User Provisioning and Mapping. IEEE 802.3: 10 BASE-T IEEE 802.3u: 100BASE-T IEEE 802.3ab: 1000BASE-T IEEE 802.1ak: Virtual Bridged Local Areea Networks – Amending 07: Multiple Registration Protocol IEEE 802.3ac: VLAN Tagging IEEE 802.3ad: Link Aggregation IEEE 802.3x: Flow Control IEEE 802.1D-2004: Generic Attribute Registration Protocol: Clause 12 (GARP) IEEE 802.1D-2004: Dynamicd L2 Multiplecast Registration: Clause 10 (GMRP) IEEE 802.1Q-2003: Dynamic VLAN Registration: Clause 11.2 (GVRP) RFC 4541: Considerations for Internet Group Management Protocol (IGMP) Snooping Switches RFC 5171: Unidirectional Link Detection (UDLD) Protocol Broadcast Storm Recovery Broadcast/Multicast/Unknown Unicast Storm Recovery IGMP Snooping Querier Independent VLAN Learning (IVL) Support Jumbo Ethernet Frame Support Port MAC Locking Port Mirroring Protected Ports Static MAC Filtering Voice VLANs Unathenticated VLAN Internal 802.1X Authentication Server DHCP Server Routing MAC Addresses MSTP Instances LAGS ACLs Traffic Classes (Queues) RFC 2021: Remote Network Monitoring Management Information Base V2 RFC 2030: Simple Network Time Protocol (SNTP) RFC 2819: Remote Network Monitoring Management Information Base RFC 2865: RADIUS Client RFC 2866: RADIUS Accounting RFC 2868: RADIUS Attributes for Tunnel Protocol Support RFC 2869: RADIUS Extensions RFC 3579: RADIUS Support for EAP RFC 3580: IEEE 802.1X RADIUS Usage Guidelines RFC 3164: BSD Syslog Protocol SNMP v1, v2, v3 SSH 1.5, 2.0 SSL 3.0, TLS 1.0 Secure Copy (SCP) Spanning Tree Protocol (STP) Resources Virtual LAN (VLAN) Link Aggregation (LAG) Allows multiple connections to be logically organized as a single connection. This also allows for a network connection to continue operating (at reduced speeds) with the failure of one or more of the physical links. Split Multi-Link Trunking (SMLT) – Allows for ports to be aggregated across multiple physical devices. Routed-SMLT (RSMLT) – Allows for ports to be aggregated across multiple physical devices. Resources Quality of Service (QoS) Differentiated Services (DiffServ). Class of Service (CoS). Access Control Lists Time-Based Source/Destination IP TCP/UDP Source/Destination Port IP Protocol Type Type of Service (ToS) Differentiated Services (DSCP) Source/Destination MAC Address EtherType IEEE 802.1p User Priority VLAN IDRFC 1858: Security Considerations for IP Fragment Filtering. Authentication TACACS+ / RADIUS PPP (Point-to-Point Protocol) – Offers way to authenticate a user. EAP (Extensible Authentication Protocol) – Extends the methods of authentication available via PPP. IEEE 802.1X – For passing EAP without the use of PPP.Supplicant – Client requesting authentication. Authentication Server – Performs authentication. Authenticator – The device to which the request has been made (e.g., a WAP or switch). Resources Joel Snyder. What is 802.1X? Network World, 2010. – Solid overview, explains 802.1X as well as PPP and EAP. Network Switch Companies Bibliography / Further Reading Like this: Like Loading...
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