Linksys SRW208G, SRW208MP, SRW208L, SRW208P manual Security Storm Control, QoS CoS Settings

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Chapter 5

Advanced Configuration

Number of Violations  Indicates the number of packets that arrived on the interface in single-host mode, from a host whose MAC address is not the supplicant MAC address.

Security > Storm Control

Port  Displays the port number for which storm control is enabled.

Security > Storm Control

Broadcast Control  Indicates whether broadcast packet types are forwarded on the specific interface.

Mode  Specifies the Broadcast mode currently enabled on the device. The possible field values are:

•• Unknown Unicast, Multicast & Broadcast  Counts Unicast, Multicast, and Broadcast traffic.

•• Multicast & Broadcast  Counts Broadcast and Multicast traffic together.

•• Broadcast Only  Counts only Broadcast traffic.

Rate Threshold  The maximum rate (packets per second) at which unknown packets are forwarded. The default value is 3500. The range is 70 -100000.

QoS

Network traffic is usually unpredictable, and the only basic assurance that can be offered is best effort traffic delivery. To overcome this challenge, Quality of Service (QoS) is applied throughout the network. This ensures that network traffic is prioritized according to specified criteria, and that specific traffic receives preferential treatment. QoS in the network optimizes network performance and entails two basic facilities:

Classifying incoming traffic into handling classes, based on an attribute, including:

•• The ingress interface

•• Packet content

•• A combination of these attributes

Providing various mechanisms for determining the allocation of network resources to different handling classes, including:

•• The assignment of network traffic to a particular hardware queue

•• The assignment of internal resources

•• Traffic shaping

The terms Class of Service (CoS) and QoS are used in the following context:

CoS provides varying Layer 2 traffic services. CoS refers to classification of traffic to traffic-classes, which are handled as an aggregate whole, with no per-flow settings. CoS is usually related to the 802.1p service that classifies flows according to their Layer 2 priority, as set in the VLAN header.

QoS refers to Layer 2 traffic and above. QoS handles per- flow settings, even within a single traffic class.

QoS > CoS Settings

QOS > CoS Settings

The CoS Settings screen contains fields for enabling or disabling CoS. In addition, the Trust mode can be selected. The Trust mode relies on predefined fields within the packet to determine the egress queue settings.

The CoS Settings screen has two areas, CoS Settings and CoS to Queue.

CoS Mode  Indicates if QoS is enabled on the interface. The possible values are:

•• Disable  Disables QoS on the interface.

8-Port 10/100 Ethernet Switch with Webview

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Contents Port 10/100 Ethernet Switch with Webview Online Resources About This GuideAbout This Guide Icon DescriptionsTable of Contents Port 10/100 Ethernet Switch with Webview Iii Table of Contents Appendix F Regulatory Information Appendix B IntroductionAppendix G Contact Information Introduction Chapter IntroductionWelcome SRW208G Front Panel Chapter Product OverviewProduct Overview SRW208 Front PanelSRW208P/SRW208MP Front Panel SRW208L Front PanelBack Panel Placement Options Chapter InstallationInstallation Positioning the SwitchRack-Mount Placement Wall-Mount Placement Hardware Installation Connecting to the Switch through a Telnet Session Chapter Configuration Using Console InterfaceSystem Configuration Menu Switch Main MenuManagement Settings SSH Configuration User & Password Settings IP Configuration Https Configuration Port Status Port ConfigurationHelp Setup Summary Chapter Advanced ConfigurationAdvanced Configuration Accessing the Web-based UtilityPoE Information Setup Network SettingsIP Configuration System InformationPort Management Port Settings Setup TimePort Configuration Detail Link Aggregation Detail Port Management Link AggregationPort Management Lacp Port Management PoE Power SettingsVlan Range Vlan Management Port SettingsVlan Management Create Vlan Single VlanVlan Management Vlan to Ports Vlan Management Ports to VlanStatistics Rmon Statistics Vlan Management GvrpJoin Vlan Detail Log Table Statistics Rmon HistoryRmon History Statistics Rmon AlarmsAdd Event Statistics Rmon EventsStatistics 802.1x Statistics Statistics Port UtilizationACL IP based ACL Statistics Gvrp StatisticsACL MAC based ACL Security Radius Security ACL BindingSecurity TACACS+ Setting Timer Security 802.1x SettingsSecurity Ports Security Security Multiple Hosts Security Storm Control QoS CoS SettingsQoS QoS Bandwidth QoS Queue SettingsQoS Dscp Settings CoS DefaultQoS Advanced Mode QoS Basic ModePolicy Name Out of Profile DscpNew Class Map Spanning Tree STP Status Spanning TreeNew Aggregate Policer Bridge Settings Global SettingSpanning Tree Global STP Spanning Tree Rstp Port Settings Spanning Tree STP Port SettingsEstablished by the device Spanning Tree Mstp PropertiesSpanning Tree Mstp Instance Settings Multicast Igmp Snooping Snmp Global Parameters Multicast Bridge MulticastSnmp Views Snmp Group Membership Snmp Group ProfileBase Table Snmp CommunitiesSnmp Notification Recipient Snmp Notification FilterAdvanced Table Admin Static Address Admin User AuthenticationAdmin Logging Admin Dynamic AddressQuery Admin Cable Test Admin Port MirroringVia Tftp Admin Save ConfigurationAdmin Firmware Upgrade BackupAdmin Factory Defaults Admin RebootAdmin Server Logs Admin Flash Logs Admin Memory LogsGigabit Ethernet Appendix a About Gigabit Ethernet Fiber Optic CablingFiber Optic Cabling Appendix B Introduction Startup Menu ProceduresDownloading Using Xmodem Glossary Appendix C GlossaryGlossary Smtp Simple Mail Transfer Protocol The standard e Appendix C Specifications Appendix D SpecificationsQoS Specifications SRW208L SRW208MP Limits Bandwidth Intensive Video Traffic to Only Requestors Support 256 multicast groups Ethernet Obtaining Warranty Service Warranty InformationExclusions and Limitations Technical Support Warranty InformationIndustry Canada Statement Safety NoticesRegulatory Information FCC StatementRegulatory Information Appendix F Norsk Norwegian Miljøinformasjon for kunder i EU Appendix F Contact Information Appendix G
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