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Cabletron Systems 1800 User Manual

Page 336

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21-10

SmartSwitch 1800 4. 0 User G uide, Rev 01

Information on the Status Display (the screen shown in Figure 21-9) is
described on

page 20-23

.

Information on the Bridge Port Statistics Display:

Type/Format

– identifies the interface type (Ethernet, Token Ring, or frame

relay) and (if frame relay) frame format (Native LLC2, 8025_SRB, or 8023_TB,
as configured in the Port record).

DesignatedRoot

– is the bridge selected as

Root

in the spanning tree. The

selection of root is determined by the bridge with the lowest Bridge ID, which
consists of a

Bridge Priority

(described on page 16-5) and MAC address.

DesignatedBridge

– is the bridge connecting to the least-cost path to the root

bridge.

DlyExceeded

– is the number of frames discarded because of excessive delay.

OutFrames

– is the number of transmitted frames.

InCfgShort

– is the number of received Configuration BPDUs (Bridge Protocol

Data Units) that were dropped because they were too short.

OutCfgBPDU

– is the number of transmitted Configuration BPDUs.

MTUExceeded

– is the number of frames discarded because of excessive size.

InDiscards

– is the number of incoming frames that were discarded because they

did not match a filter.

InTcnShort

– is the number of received TCN (Topology Change Notification)

BPDUs that were dropped because they were too short.

OutTcnBPDU

– is the number of transmitted TCN BPDUs.

FwdTrans

– is the number of times the Bridge port went from the

Learning

state

to the

Forwarding

state.

OutCfgDrop

– is the number of Configuration BPDUs that were dropped due to

a lack of resources.

InCfgBPDU

– is the number of received Configuration BPDUs.

OutOctets

– is the number of transmitted octets.

InFrames

– is the number of received frames.

OutTcnDrops

– is the number of TCN BPDUs that were dropped due to a lack

of resources.

InTcnBPDU

– is the number of received TCN BPDUs.

InOctets

– is the number of received octets.