Juniper JUNOSE 10.0.X PHYSICAL LAYER, Руководство по настройке

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Deferred—Number of packets that the router delayed sending because
the line was busy. In half duplex mode, a high number of deferrals
means the link is very busy with traffic from other stations. In full duplex
mode, when the link is always available for transmission, this number
is zero.
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No Carrier—Number of packets sent when carrier sense was unavailable
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Collisions—Analysis of the collisions that occurred
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Single—Number of packets sent after one collision
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Multiple — Number of packets sent after multiple collisions
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Late — Number of packets aborted during sending because of collisions
after 64 bytes
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Excessive — Number of packets not sent because of too many collisions
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ARP Statistics—Analysis of ARP traffic on this interface; In fields are for
traffic received on the interface and Out fields are for traffic sent on the
interface
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ARP requests—Number of ARP requests
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ARP responses—Number of ARP responses
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Errors—Total number of errors in all ARP packets
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Discards—Total number of discarded ARP packets
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queue—Hardware packet queue associated with the specified traffic class
and interface
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Queue length—Length of the queue, in bytes
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Forwarded packets, bytes—Number of packets and bytes that were
forwarded on this queue
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Dropped committed packets, bytes—Number of committed packets and
bytes that were dropped
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Dropped conformed packets, bytes—Number of conformed packets and
bytes that were dropped
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Dropped exceeded packets, bytes—Number of exceeded packets and
bytes that were dropped
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Example—Displays the status of a Gigabit Ethernet interface
host1:vr2# show interfaces gigabitEthernet 10/2
ERX-40-20-43#show int gigabitEthernet 10/2
GigabitEthernet10/2 is Down, Administrative status is Up
Hardware is SEEQ 8101, address is 0090.1a01.0cc8
Primary MAU is 1000BASE-SX, secondary MAU is SFP (Empty)
MTU: Operational 1518, Administrative 1518
Duplex Mode: Operational Full Duplex, Administrative Auto Negotiate
Speed: Operational 1000 Mbps, Administrative Auto Negotiate
De-bounce: State is Enabled, interval is 2 seconds
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Monitoring Ethernet Interfaces
JUNOSe 10.0.x Physical Layer Configuration Guide