Bridge Performance Graph Window Fields | Cabletron Systems 9E312

9E312/9E423 Module Bridging

Bridge Performance Graph Window Fields

You can select the following statistics to display in the Bridge Performance Graph or Bridge Port Performance Graph. Statistics are provided numerically (as an average or peak value) and graphically. The device is polled for the graphed information every 2 seconds, and numeric values are updated based on this poll.

The graph updates at the ﬁxed two second interval. For the ﬁrst 60 seconds of graphing, you will note the graph lines extending as each interval’s data is added to the graph. Once the ﬁrst 60 seconds has passed, the newest data is added at the right edge of the graph, and the oldest data is scrolled off to the left.

Peak statistics are based on the peak level of activity returned from a single poll since the Performance Graph window was invoked. A date and time is provided for peak levels.

The Average statistics are updated every 2 seconds as averaged over the previous four poll intervals (i.e., averaged over a sliding eight second time window).

Frames Forwarded (Green)

ForwardedThe number of frames forwarded by the 9E312/9E423 Module’s bridge, at the device or port level.

Nothing	The Frames Forwarded function is currently not
	measuring any statistics.
Filtered (Magenta)
Filtered	The total number of frames ﬁltered by the 9E312/9E423
	Module’s bridge, at the device or port level.
Nothing	The Filtered scale is not currently measuring the number
	of packets ﬁltered by the bridge at the device or port
	level.
Errors (Red)
Total Errors	The total number of errors that all bridging interfaces on
	the device, or an individual bridge interface, has
	experienced during bridging.
Nothing	The Errors scale is currently not measuring any type of
	error packets coming through the device or port.
Xmitted (Blue)
Xmitted	The total number of frames transmitted by the selected
	bridge interface, or all bridge interfaces.
Nothing	The Xmitted scale is not currently measuring the number
	of packets ﬁltered by the bridge or the individual
	interface.

3-8	Bridge Statistics

Image 43

Cabletron Systems 9E312 manual Bridge Performance Graph Window Fields, Frames Forwarded Green, Filtered Magenta, Errors Red

Contents

Page Virus Disclaimer Page Restricted Rights Notice Page Contents 9E312/9E423 Module Bridging Index Introduction Introduction Using the 9E312 and 9E423 User’s Guide Related Manuals Common 9E312 and 9E423 Window Fields Software Conventions Using Buttons and Menus Getting Help Using On-line HelpGetting Help from Cabletron Systems Technical Support FTP 9E312 and 9E423 Firmware Introduction 9E312 and 9E423 Firmware 9E312/9E423 Module View 9E312/9E423 Module View Viewing Module Information Connection Status Front Panel Information Menu Structure Device Menu E312/9E423 Module View Menu Structure Help Menu Utilities MenuBridge Menu Bridge Port Menu 9E312/9E423 Module Port Status Display Chassis Manager Window Managing the Module Setting the Device Date and TimeViewing the Device Type Edit Time Window Enabling and Disabling Bridge Ports Using the Find Source Address Feature Find Source Address Window Summary Information Description Interface Description FieldsIndex Type Raw Counts Interface Performance Statistics/Bar Graphs Load Interface Detail WindowRate Unicast Interface Detail Window Statistics Unknown Protocol ErrorMulticast Discarded Making Sense of Interface Statistics Testing and Disabling the Current InterfacePackets Received Packets Transmitted Using the Applications Pull-down menu 9E312/9E423 Module View Summary Information Bridging Basics 9E312/9E423 Module Bridging More on Transparent Bridging An Overview of Remote Bridge Management Bridge Status Window Bridge State on Interface Bridge Status Window Information Fields Interface Address Interface TypeInterface Speed Bridge Statistics Enabling and Disabling Bridging Performance Graphs Filtered Magenta Errors RedBridge Performance Graph Window Fields Frames Forwarded Green Conﬁguring the Bridge Performance Graphs Interface Statistics Window Address Interface Statistics Window Fields Non-Unicast Bridge Spanning Tree 9E312/9E423 Module Bridging Bridge Level Fields Conﬁguring the Bridge Spanning Tree WindowBridge Priority Protocol Root BridgeRoot Cost Root Port Bridge Port Level Fields Designated Bridge Path CostDesignated Cost Designated Root Changing Bridge Priority Changing Bridge Spanning Tree ParametersChanging the Spanning Tree Algorithm Protocol Type Changing Hello Time Changing Forwarding Delay TimeChanging Max Age Time Changing Port Priority Filtering DatabaseChanging Path Cost 9E312/9E423 Module Bridging Filtering Database Window Capacity Filtering Database Window FieldsList Number Port Filtering Conﬁguring the Filtering DatabaseSource Port Receive Port Changing the Type of Entry Altering the Ageing TimeChanging the Receive Port Adding or Deleting Individual Entries Changing the Port Filtering Action Clearing All Permanent, Static, or Dynamic Entries Using Port Source Addressing Device Ageing Time Window Setting the Ageing Time Duplex Modes Window Duplex Modes Interface Duplex Modes Window FieldsFull Duplex Setting the Duplex Mode Index Index-2