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Chapter 10. Statistics
10-16 TSU IQ+ User Manual 61200275L1-1
Red Alarm
If A
LARM
is displayed, a loss of frame synchronization occurred one
or more times during the given interval.
Yellow Alarm
If A
LARM
is displayed, the telco end of the T1 was out of frame sync
oneormoretimesduringthegiveninterval.
PLL Alarm
A
LARM
displayed in this field usually signifies that both ends of the
T1 circuit are set to provide timing.
Path Code
Number of path code violations. Path code violations include
frame bit errors for D4 framing and superframes with CRC errors
for ESF framing.
Line Code
Number of line code violations. Line code violations include BPVs
that are not part of B8ZS code or excess zero violations.
Layer 3 Statistics
Layer 3 statistical information provides you with a better
understanding of what type of traffic is occupying your bandwidth.
Configure this menu specifically for your setup by selecting the
two protocol types most commonly found in your network. The
selections are called P
ROTOCOL
1 and P
ROTOCOL
2 andarefoundin
the S
YSTEM
portion of the C
ONFIGURATION
menu (see Protocols 1 and
2 on page 9-4). Layer 3 tracking supports the following four
protocols:
• IP (routed and bridged)
• IPX (routed and bridged)
• SNA (ten SNA types as defined in FRF-3)
SNA-Subarea (FID4) with Layer 2 (LLC2)
SNA-Peripheral (FID2) with Layer 2 (LLC2)
SNA-APPN with Layer 2 (LLC2)
SNA-HPR with Layer 2 (LLC2)
SNA-Netbios with Layer 2 (LLC2)
SNA-Subarea (FID4) without Layer 2 (LLC2)