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Table 3-1 MIB-II Interface Statistics (continued)
Variable
ifInNUcastPkts
IfInDiscards
IfInErrors
IfOutOctets
ifOutUcastPkts
ifOutNUcastPkts
IfOutErrors
IfOutDiscards
Overview of WAN Interfaces
The XSR supports as many as six serial cards (in an XSR-3250), each of which can support four
ports for a maximum of 24 serial ports. Each port is individually configurable regarding speed,
media-type, and protocol.
The Serial WAN interface performs the following functions:
•
Transmit packets given by the protocol layer onto a serial link.
•
Receive packets from a serial link and pass up to the protocol layer.
•
Allow CLI configuration commands to be issued.
•
Accumulate all MIB-II (RFC-1213) interface statistics regarding the transmission and reception
of bytes and packets.
WAN Features
The XSR supports the following WAN interface features:
•
Alarms/events - For a complete list, refer to
ASCII Table"
•
Interfaces - The following interface types can be configured using the
–
–
–
–
–
–
•
Either Sync or Async mode is set by using
•
Encoding - On Sync interfaces,
default).
Description
Sum of non-unicast packets delivered to a higher layer protocol.
Sum of inbound packets discarded.
Sum of inbound packets that contained errors.
Sum of octets transmitted on the interface
Sum of subnetwork-unicast packets sent to the network.
Sum of non-unicast packets transmitted to the network.
Sum of outbound packets that could not be sent due to errors.
Sum of outbound packets discarded.
on page A-1 in this manual.
RS232 (also known as V.28) (default)
RS422 (also known as RS-530)
RS449 (also known as V.36)
RS530A
V.35
X.21
"Alarms/Events, System Limits, and Standard
physical-layer
nrzi-encoding
sets NRZI encoding (NRZ encoding is the
Overview of WAN Interfaces
media-type
.
XSR User's Guide 3-3
command:
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Troubleshooting
