Cuda 12000 IP Access Switch CLI-based Administration Guide
Packet Over SONET (POS) Interface Administration 121
The display includes a number of statistics, as described in the following table. Tabl e 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 addre ss
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.