Avaya P580, P550R, P880 manual Port Mirroring on 80-Series Modules, WFQ Queue-Servicing Algorithm

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WFQ Queue-Servicing Algorithm

You can configure the WFQ service policy. The WFQ policy implemented in the Cajun II Queue Classification and Servicing sub-system is a variation of the textbook WFQ algorithm. In Cajun II WFQ, each queue is assigned a weight increment. The weight increment never varies; however, each queue also maintains an accumulated weight, which is updated after each queue service cycle. Queues are serviced based upon their relative accumulated weights. In each queue service cycle, only the queue with the highest accumulated weight is serviced. If there is a tie, the queue with the highest priority (0 – 7 highest) is serviced first. After each queue service cycle, the accumulated weight for the queue that is serviced is reset to the value of its weight increment, and the accumulated weight for the other queues is increased by their respective weight increments.

When you set a port for WFQ, the switch services priority queues according to their assigned weight. The queue with the highest weight is serviced first.

There are two levels to the WFQ command. The first level specifies the modules/ports to be configured. The second level specifies the queue weights.

Port Mirroring on 80-Series Modules

The port mirroring on 80-series modules that is implemented in v5.2.2 provides the ability for the 80-series modules to monitor traffic that a port transmits and receives. Four channels are provided for monitoring traffic, so you can monitor four different ports or port ranges simultaneously.

*Note: Your switch must be in fabric mode 2 to perform 80-series port mirroring.

You can configure port mirroring on 80-series modules by using either the command-line interface (CLI) or the Web Agent.

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June 14, 2001

610-0184-095

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Contents Cajun P550R/P580/P880/P882 Switch Release Notes OverviewNew Hardware and Software Features Software FeaturesHardware June 14 Type of Switch Binary File Boot File Supported Product Binaries and Boot CodesQueue Classification and Servicing Features OverviewClassification of Traffic Port Mirroring on 80-Series Modules WFQ Queue-Servicing AlgorithmConfiguring Port Mirroring By Using the CLI Setting Up Port MirroringPort Ranges for 80-Series Port Mirroring Port Ranges for 80-Series Port Mirroring Config# clear port mirror fabricmode2 channel channel Configuring Port Mirroring By Using the Web Agent If you select ThenChanging the Status of Option 82 by Using the Web Agent Enabling Option 82 for DhcpMIB Item Changing the Status of Option 82 by Using the CLIChanging the Status of Option 82 by Using Snmp Cjnipv4serv.mibEnabling MAC Address Lock and Traps by Using the Web Agent Enabling MAC Address Lock and Traps by Using the CLIEnabling Traps for Unknown Source Addresses Enabling MAC Address Lock and Traps by Using Snmp ProminetMib.txt, versionMIB, MIB Items, and OIDs for MAC Address Lock ProminetMib.txtChanged CLI Commands Corrected ProblemsEnhancements ATM Uplink Modules Known Problems and WorkaroundsCommand Line Interface CLI Flood Rate LimitingFrames Transmitted with Cyclic Redundancy Check CRC Errors Desired Rate Web or CLI SettingHot Swap Modules Igmp Group Membership TableIntelligent Multicasting Example IPX L3 Forwarding CacheOption 82 for Dchp Point-to-Point Protocol PPP and TelnetPort Mirroring Series ModulesRedundant Switch Controller Remote Monitoring RmonSimple Network-Management Protocol Snmp Downloading the Startup Configuration File P580/P882 Chassis SlotSupervisor Module Switch Ports Following error message in the CLIFunctional Restrictions Vlan IssuesWeb AFT Issues Auto-NegotiationCPU Synchronization Checksum Error MessageCajunView Legacy CLIDistance Vector Multicast Routing Protocol Dvmrp Hunt GroupsLink Status Loopback Tests NetscapeOversized Packets Spanning Tree Protocol STP Redundant Controller SupportSoftware License Keying 3Com TaggingCajun P550R/P880/P882 Switch User Guide Documentation Updates and CorrectionsTftp Download Status Delay Web AgentTechnical Support Click InterfacesSetting the Priority of a Port CommandSetting a Port to Ignore Tag Priority ExamplesDisplaying the Port Settings Setting a Rule in an Access Control List June 14 Displaying Access Control Lists Setting WFQ Correct syntax for Command 2 is Displaying the Queue Service Settings