Interfaces
Page 664 7750 SR Interface Configuration Guide
Channelized Port Output Fields Channelized Port Output — The following table describes channelized port output fields.
Label Description
Description
A text description of the port.
Interface
The port ID displayed in the slot/mda/port format.
TimeSlots
Specifies the DS0 timeslot used in the T1/E1 channel-group.
Speed
Indicates the speed of the DS0 channels used in the associated channel-
group.
CRC
Indicates the precision of the cyclic redundancy check.
16 — A16-bit CRC calculation.
32 — A 32-bit CRC calculation. 32-bit CRC increases the error detection
ability, but it also adds some performance overhead.
Admin Status
Up — The port is administratively up.
Down — The administratively down.
Oper Status
Up — The port is operationally up.
Down — The port is operationally down.
Last State
Change
Displays the last time the operational status of the port changed state.
Chan-Grp IfIndex
Displays the channel group’s interface index number which reflects its
initialization sequence.
Configured Mode
network — The port is configured for transport network use.
access — The port is configured for service access. Channelized ports
are always access ports.
Encap Type
The type of encapsulation protocol configured on this port's network
interface.
bcp-null — Indicates that BCP is used as the NCP control protocol.
dot1q — Indicates that ingress frames carry 802.1Q tags where each tag
signifies a different service.
Oper MTU
The negotiated size of the largest packet which can be sent on the channel,
specified in octets. For channels that are used to transmit network
datagrams, this is the size of the largest network datagram that can be sent.
Physical Link
Indicates whether or not the port has a physical link.
Unicast Packets
Input/Output
The number of packets, delivered by this sub-layer to a higher (sub-) layer,
which were not addressed to a multicast or broadcast address at this sub-
layer.
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