Service manual

4
Repair Procedures - EFCM Basic Edition
4-17
Repair Information
Performance View The EFCM Basic Edition interface provides access to port statistics
information through the Performance View.
• To open this view, select Performance from the Product menu
(Product>Performance). The following statistical information
appears:
Internal Loopback
Test
An internal loopback test checks internal port, serializer, and
deserializer circuitry and checks for the presence of an optical
transceiver, but does not check fiber-optic components of the
installed transceiver. Operation of the attached device is disrupted
during the test.
Table 4-6 Performance View Table
Statistics Description
Traffic Statistics Port transmit and receive values for frames
Four-byte words transmit and receive value for frames
Offline sequences transmit and receive value for frames
Link resets and link utilization percentage.
Time spent using no transmission buffer-to-buffer credit (BB_Credit)
Error Statistics Number of:
Link failures
Synchronization and signal losses
Discarded frames
Invalid transmission words
Primitive sequence errors
Cyclic redundancy check (CRC) errors
Delimiter errors
Address identification errors
Short frames.
Class 2 Statistics Number of:
4-byte words transmitted and received
Class 2 frames transmitted, received, busied, or rejected.
Class 3 Statistics Number of:
4-byte words transmitted and received
Class 3 frames transmitted, received, or discarded.
Open Trunking Statistics These statistics include the number of traffic flows rerouted to or from an ISL due to
congestion.