Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010, Руководство по настройке

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lower-layer-down —Displays interfaces with operational status
LowerLayerDown
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not-present —Displays interfaces with operational status NotPresent
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open —Displays interfaces with administrative status Open
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up —Displays interfaces with operational status Up
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full —Displays configuration information, status, and statistics
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filter —Specifies a CLI output filter
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Field descriptions
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interface status—State of the interface:
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Up — Traffic can flow on the interface
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Down — Traffic cannot flow because of a problem in the interface at the
current protocol layer
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LowerLayerDown — Traffic cannot flow because of a problem in an
interface at a lower protocol layer
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NotPresent — Traffic cannot flow because hardware is unavailable
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Interface administrative status—Configured state of the interface:
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Open— no hdlc shutdown command is operative
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Closed— hdlc shutdown command is operative
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Interface maximum-transmission-unit—Configured MTU size
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Interface keepalive time—Configured keepalive interval value
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Interface loop detection—Status of loopback detection: enabled, disabled
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Interface statistics:
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packets in — Number of inbound packets received on the interface
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packets out—Number of outbound packets transmitted on the interface
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octets in—Number of inbound octets received on the interface
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octets out — Number of outbound octets transmitted on the interface
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errors in—Number of inbound errors received on the interface
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errors out—Number of outbound errors transmitted on the interface
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discards in—Number of inbound packets discarded on the interface
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discards out—Number of outbound packets discarded on the interface
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Example 1
host1# show hdlc interface serial 5/1:5/1
Cisco-HDLC interface serial 5/1:5/1 is LowerLayerDown
512 ■
Monitoring Cisco HDLC
JUNOSe 11.1.x Link Layer Configuration Guide