Real-Time Statistics; Topology Views - Extreme Networks EPICenter Guide Manual

EPICenter Features
the most recent macro run on each device are saved into log files, and can be viewed from within the
Telnet applet.
Saved telnet macros can also be run from outside the Telnet applet, through the Tools menu or from the
right-click pop-up menus that are available in most EPICenter features. When a macro is created, the
administrator can define both an execution context—whether the macro should be available to be run
on all devices in a device group, or only individual devices or individual ports— and can allow these
macros to be run by users with specific roles.
You can use the interactive Telnet capability (but not telnet macros) to view and modify configuration
information for some Cisco and 3COM devices as well as for Extreme Networks devices.

Real-Time Statistics

The Real-Time Statistics feature of the EPICenter software provides a graphical presentation of
utilization and error statistics for Extreme switches in real time. The data is taken from Management
Information Base (MIB) objects in the etherHistory table of the Remote Monitoring (RMON) MIB. You
can choose from a variety of styles of charts and graphs as well as a tabular display.
You can view data for multiple ports on a device, device slot, or within a port group, optionally limiting
the display to the "top N" ports (where N is a number you can configure). You can also view limited
historical statistics for an individual port. If you choose to view a single port, the display shows the
value of the selected variable(s) over time, and can show utilization history, total errors history, or a
breakdown of individual errors.
In addition, the Real-Time Statistics applet lets you "snapshot" a graph or table as a separate browser
page. You can then save, print, or e-mail the page.

Topology Views

The EPICenter software's Topology feature allows you to view your network (EPICenter-managed
devices and the links between Extreme Networks devices) as a set of maps. These maps can be
organized as a tree of submaps that allow you to represent your network as a hierarchical system of
campuses, buildings, floors, closets, or whatever logical groupings you want.
EPICenter can add device nodes to your topology map automatically as devices are added to EPICenter
software's device inventory. The EPICenter software automatically detects and adds links that exist
between Extreme Networks devices, and organizes the device nodes into submaps as appropriate. The
links between devices provide information about the configuration and status of the links.
You can customize the resulting maps by creating submaps, moving map elements within or between
submaps, adding new elements, such as links, "decorative" (non-managed) nodes, and text, and
customizing the look and labeling of the discovered nodes themselves. In addition, options are available
to organize and optimize the map layout to display very large numbers of devices with the minimum of
device and link overlap. You can place a background image behind your map—either one of the images
available with EPICenter, or one you provide yourself, such as a building or campus layout.
The Topology applet shows alarm status for individual devices, and propagates that information up the
map hierarchy so that from a higher-level map you can tell the what level of alarms have occurred for
devices in a submap. The Topology applet also provides information about the VLANs configured on
devices in a topology view. Using the Display VLANs feature, you can visually see which links and
devices are configured for a selected VLAN, or select a specific device or link to see what VLANs are
configured on that device. You can also configure a VLAN in a topology by adding ports or trunk links.
EPICenter Concepts and Solutions Guide 17