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Page 516 7750 SR OS Interface Configuration Guide 
Detailed  Port Output Fields Detailed Port Output — The following table describes detailed port output fields. 
Label Description 
Description
A text description of the port.
Interface
The port ID displayed in the slot/mda/port format.
Speed
The speed of the interface.
Link-level
Ethernet — The port is configured as Ethernet.
SONET — The port is configured as SONET/SDH.
MTU
The size of the largest packet which can be sent/received on the Ether-
net physical interface, specified in octets.
Admin State
Up — The port is administratively up.
Down — The port is administratively down.
Oper State
Up — The port is operationally up.
Down — The port is operationally down.
Duplex
Full — The link is set to full duplex mode.
Half — The link is set to half duplex mode.
Hold time up
The link up dampening time in seconds. The port link dampening 
timer value which reduces the number of link transitions reported to 
upper layer protocols.
Hold time down
The link down dampening time in seconds. The down timer controls 
the dampening timer for link down transitions.
IfIndex
Displays the interface's index number which reflects its initialization 
sequence.
Phy Link
Yes — A physical link is present.
No  — A physical link is not present.
Configured Mode
network — The port is configured for transport network use.
access — The port is configured for service access.
Network Qos Pol
The QoS policy ID applied to the port.
Access Egr. Qos Specifies the access egress policy or that the default policy 1 is in use.
Egr. Sched. Pol Specifies the port scheduler policy or that the default policy default is 
in use.
Encap Type
Null — Ingress frames will not use any tags or labels to delineate a 
service.