Cabletron Systems SEHI-22/24, SEHI-32/34 manual Frame Sizes, Port Type, Using the SEHI Hub View

Models: SEHI-22/24 SEHI-32/34

1 90
Download 90 pages 61.33 Kb
Page 23
Image 23
Frame Sizes

Using the SEHI Hub View

For error type descriptions, see Checking Statistics, page 2-15.

Frame Sizes

Displays a percentage for each active port that represents what portion of that port’s traffic is of a specific size, measured in bytes. You can display any one of the following frame sizes:

Runts (packets with fewer than 64 bytes)

64-127

128-255

256-511

512-1023

1024-1518

Giants (packets with more than 1518 bytes)

NOTE

For the statistical port display form options listed above, three dashes (- - -) will display for all inactive ports; any active (green) port will display a numeric value, even if it’s 0.0000.

Port Type

Provides the following administrative information about the port:

Admin/Link Status indicates the connection status of the port:

-ON indicates that the port has a valid link signal or does not support a link signal.

-OFF indicates that the port has been turned off through management action.

-NLK (No Link) indicates that the port does not have a link to a device at the other end of the cable, or that there is no cable attached.

-SEG (Segmented) indicates that the port has been segmented by the repeater due to an excessive collision level.

NOTE

Because BNC thin coax, AUI, and transceiver ports do not support the link feature, the displayed Admin/Link status for those ports may be misleading: for example, a BNC port will display as segmented when, in fact, there is no cable or terminator attached or the cable has been disconnected; an AUI or transceiver port will display as on (with a valid link signal) even when no cable is attached. Be sure to keep these anomalies in mind when troubleshooting a device so equipped.

Admin Status displays either ON or OFF, an indication of whether management has the port enabled or disabled. A port can be ON but not operational; for example, under the Admin display, ports that are segmented or not linked are shown as ON.

Monitoring Hub Performance

2-9

Page 23
Image 23
Cabletron Systems SEHI-22/24, SEHI-32/34 manual Frame Sizes, Port Type, Using the SEHI Hub View, Monitoring Hub Performance