Zhone 100 User Manual page 89

980-001-0210G
June 1999
Netw Threshold Alarm - Network Link Error Threshold (Data Frame Error
Seconds) reached or exceeded.
User Threshold Alarm - User Link Error Threshold (Data Frame Error Seconds)
reached or exceeded.
PVC Drpd Mon Alarm - PVC Dropped Monitor Packet Threshold reached or
exceeded.
PVC Dlvd Pkt Alarm - Percentage of delivered packets for a PVC, has fallen
below the PVC Dlvd Pkt Threshold value.
PVC Delay Alarm - PVC Delay Threshold reached or exceeded.
BECN/FECN Alarm - BECN/FECN Error Threshold reached or exceeded.
(blank) - No failures or errors detected.
Test Mode - Allows selection of the following mutually exclusive test modes:
Clear - Terminates operator or Telco-initiated Loopbacks, BERT,
and Test Packet tests.
Line Lp to Netw - Sets a Line Loopback at the T1 interface toward the Network.
Payld Lp to Netw - Sets a Payload Loopback in the CSU toward the Network.
Send LoopUp - Sends a T1 Line Loopback code toward the Network.
Send LoopDn - Sends a T1 Remove Line Loopback code toward the Network.
BER Testing:
BER patterns which can be directed toward the Network (T1 facility)
include QRSS, Alt Ones or 2047 Payload. 2047 Payload can also be directed
toward the User (DTE - high-speed port) Only one BER test may be active at
a time. The results are a count of the number of Blocks Sent, Blocks Errored,
Block Error Rate and the duration of the test, displayed as shown on the
example screen above. When the BERT duration reaches the maximum
count of 99:59:59, all counts freeze until cleared or reset by the operator (the
BERT data however, continues to be sent).
Loop to User - Sets a DTE Loopback at the Data Port toward the User.
Test Pkts to Netw - Sends Link Test Packets (40 -1590 octets) toward the network
(T1 Facility). Displayed test results include selected DLCI, packets sent, packets
dropped, percent received, octets sent, test duration and; average and maximum
delay (network and full delay), for each network.
NOTES:
1. PVC tests will prompt for the input of a PVC DLCI destination.
2. This test's delay values may not correlate to values displayed on the PVC Statistics
Screens because the Link Test Packet size (40 - 1590 octets) is larger than the
Delay measurement packet (36 octets).
3. Delay and Loss measurement packets (for ALL PVCs) are halted, while a "Test
Pkts to Netw" test is performed. This will also effect the Delay and Loss packet
counts and measurement fields on the PVC Statistics Screens.
NetPath 100 User's Manual - Installation Guide
5 Diagnostics
5-5