ADC CUDA 3 User Manual
Page 123
Cuda 12000 IP Access Switch CLI-based Administration Guide
Packet Over SONET (POS) Interface Administration
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The display includes a number of statistics, as described in the following 
table. 
Table 7-1 POS Interface Statistics
Display Element
Description
Interface Type
Number representing Packet over SONET.
POS 1/3/1 (line protocol)
Indicates whether a SONET line-layer 
connection is open or closed. 
Hardware is Packet over SONET
Indicates hardware module type.
Internet Address
IP address of the POS interface.
Rx Giants
The number of packets received on this 
link which are larger than the maximum 
packet size.
Bad FCS’s
This LCP statistic indicates the number of 
received packets that have been 
discarded due to having an incorrect FCS. 
Bad Addresses
Number of packets discarded because 
they were received with incorrect address 
or control fields. Address field was not 
0xFF or control field was not 0x03.
Bad Controls
Number of packets received on this link 
with an incorrect Control Field. 
Local MRU
Local Maximum Receive Unit (MRU), 
which is the current value of the MRU for 
the local PPP Entity. The remote entity 
uses this MRU when sending packets to 
the local PPP entity. Value is only 
meaningful only when the link has 
reached the open state 
FCS Size
Frame Check Sequence (FCS) in bits that 
the local entity generate s when sending 
and receiving packets to and from the 
remote entity. Value is only meaningful 
when the link has reached the open state.
Transmission Errors (Tx)
This Line-layer statistic calculates the sum 
of all transmit errors that caused the 
packet to not be transmitted. These 
errors consist of tx fifo error, link layer 
errors, minimum packet size violations, 
maximum packet size violations and tx 
parity errors.