show [node node-id] csma-cd -
port port-name attribute [,attribute...]
all [attributes]
all counters
all identifiers
all status
The port-name can be either a simple name to uniquely
identify a particular PORT instance, or a wildcard to
identify multiple PORT instances.
Examples:
show csma-cd port CSMACD$ETA_0010 all
show csma-cd port * all
1 – Counters
Unless stated otherwise, counts include both normal and multicast
traffic and all protocol types, service access points (SAPs), and
protocol identifiers.
o creation time
Time at which the port was created.
o multicast octets received
Number of multicast data octets that were successfully received
and made available to the port user. The count is the number
of octets in the CSMA/CD user data field and does not include
MAC (medium access control, a sublayer of the CSMA/CD Data Link
layer) headers. Comparing this count to the octets received count
yields the gross percentage of bandwidth that was consumed (over
time) by multicast PDUs received by the port.
o multicast octets sent
Number of multicast data octets that were successfully sent
through the port. The count is the number of octets in the MAC
user data field, including any padding or length fields; it does
not include MAC headers. Comparing this count to the octets sent
count yields the gross percentage of bandwidth that was consumed
(over time) by multicast pdus transmitted by the port.
o multicast pdus received
Number of multicast PDUs that were successfully received and
made available to the port user. Counted PDUs passed address and
protocol filtering and were received without errors. Comparing
this count to the pdus received count yields a gross percentage
of CSMA/CD usage for multicast pdus received by this port.
o multicast pdus sent
Number of multicast PDUs that were successfully sent through the
port. Comparing this count to the pdus sent count yields a gross
percentage of CSMA/CD usage for multicast pdus sent by this port.
o octets received
Total number of MAC user data octets that were successfully
received and made available to the port user. Counted frames
passed address and protocol filtering for both individual and
multicast MAC addresses and were received without errors. The
count is the number of octets in the CSMA/CD user data field
plus any padding, Ethernet length fields, or logical link control
(LLC) header fields; it does not include MAC headers. Adding the
octets received count to the protocol overhead calculated from
the pdus received count yields the amount of CSMA/CD bandwidth
consumed by frames received by the port.
o octets sent
Total number of user data octets that were successfully sent
through the port. The count is the number of octets in the MAC
user data field including any padding or length fields; it does
not include MAC headers. Adding the octets sent count to the
protocol overhead calculated from the pdus sent count yields the
amount of CSMA/CD bandwidth consumed (over time) by frames sent
by the port.
o pdus received
Total number of PDUs that were successfully received and made
available to the port user. Counted PDUs passed address and
protocol filtering and were received without errors. The count
provides a gross measurement of incoming CSMA/CD usage by the
port.
o pdus sent
Total number of PDUs that were successfully sent through the
port. The count provides a gross measurement of outgoing CSMA/CD
usage by the port.
o unavailable user buffers
Number of times that no user buffer was available at the port for
an incoming frame that passed all filtering for the port. Used
in conjunction with the pdus received count, this counter can
indicate the rate of user buffer receive problems.
2 – Identifier
o name
Simple name assigned to the port when it is created.
3 – Status
o client
Name specified by the data link user when the port was opened.
o ethernet protocol types
Set of Ethernet protocol types that are currently recognized for
this port.
o length present
The data link adds (1) a length field on transmit frames, and (2)
assumes the presence of a length field and attempts to remove it
on received Ethernet frames. When false, the data link does not
add and remove length fields. This attribute is irrelevant for
ISO 8802-3 formatted frames, which always have a length field.
false The data link does not add and remove length fields.
true The data link adds and removes length fields.
o llc sap addresses
Set of individual and group logical link control (LLC) service
access point (SAP) addresses that are currently recognized for
this port.
o llc service
Type of LLC (logical link control) PDU processing that is
required on the port (as defined by the user when the port was
opened).
class 1 The data link provides class 1, type 1 service.
user- The user is responsible for handling the LLC
supplied protocol.
o mac addresses
Set of individual and multicast MAC (medium access control)
addresses that are currently recognized for this port.
o receive mode
Type of receive mode that is currently enabled for the port.
normal The port receives only those frames that meet the
normal address and protocol filtering requirements
requested by the user.
promiscuous The port receives all frames regardless of format
and MAC address.
o snap protocol identifiers
Set of subnetwork access protocol (SNAP) identifiers that are
currently recognized for this port.
o station
Name of the station associated with this port as specified by the
user when the port was opened.
o uid
Entity's unique identifier, which is generated when the port is
created.