ZyXEL Communications ZyXEL Dimension ES-2024PWR - Manual (Page 85)

Chapter 17 Ethernet OAM Commands
Ethernet Switch CLI Reference Guide
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This example performs Ethernet OAM discovery from port 7.
The following table describes the labels in this screen.
sysname# show ethernet oam discovery 7
Port 7
Local client
------------
OAM configurations:
Mode : Active
Unidirectional : Not supported
Remote loopback : Not supported
Link events : Not supported
Variable retrieval: Not supported
Max. OAMPDU size : 1518
Operational status:
Link status : Down
Info. revision : 3
Parser state : Forward
Discovery state : Active Send Local
Table 49 show ethernet oam discovery
LABEL DESCRIPTION
OAM configurations The remote device uses this information to determine what functions are
supported.
Mode This field displays the OAM mode. The device in active mode (typically the
service provider's device) controls the device in passive mode (typically the
subscriber's device).
Active: The Switch initiates OAM discovery; sends information PDUs; and
may send event notification PDUs, variable request/response PDUs, or
loopback control PDUs.
Passive: The Switch waits for the remote device to initiate OAM discovery;
sends information PDUs; may send event notification PDUs; and may
respond to variable request PDUs or loopback control PDUs.
The Switch might not support some types of PDUs, as indicated in the
fields below.
Unidirectional This field indicates whether or not the Switch can send information PDUs to
transmit fault information when the receive path is non-operational.
Remote loopback This field indicates whether or not the Switch can use loopback control
PDUs to put the remote device into loopback mode.
Link events This field indicates whether or not the Switch can interpret link events, such
as link fault and dying gasp. Link events are sent in event notification PDUs
and indicate when the number of errors in a given interval (time, number of
frames, number of symbols, or number of errored frame seconds) exceeds
a specified threshold. Organizations may create organization-specific link
event TLVs as well.
Variable retrieval This field indicates whether or not the Switch can respond to requests for
more information, such as requests for Ethernet counters and statistics,
about link events.
Max. OAMPDU size This field displays the maximum size of PDU for receipt and delivery.
Operational status
Link status This field indicates that the link is up or down.