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Junos OS Interfaces Command Reference - Juniper Networks

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Table 74: T3 or E3 show interfaces Output Fields (continued)<br />

Field Name<br />

SNMP ifIndex<br />

Generation<br />

Link-level type<br />

MTU<br />

Clocking<br />

Speed<br />

Loopback<br />

FCS<br />

Mode<br />

Long buildout<br />

Framing<br />

Device flags<br />

Interface flags<br />

Link flags<br />

Hold-times<br />

Keepalive settings<br />

Field Description<br />

Copyright © 2012, <strong>Juniper</strong> <strong>Networks</strong>, Inc.<br />

SNMP index number for the physical interface.<br />

Unique number for use by <strong>Juniper</strong> <strong>Networks</strong> technical support only.<br />

Encapsulation being used on the physical interface.<br />

MTU size on the physical interface.<br />

<strong>Reference</strong> clock source. It can be Internal or External.<br />

Speed at which the interface is running.<br />

Whether loopback is enabled and the type of loopback (local or remote).<br />

Frame check sequence on the interface (either 16 or 32). The default is 16 bits.<br />

(T3 only) Whether C-bit parity mode or M13 mode is enabled.<br />

(T3 only) Buildout setting: less than 255 feet (68 meters) or greater than 255<br />

feet and shorter than 450 feet (137 meters).<br />

(E3 only) Physical layer framing format used on the link. It can be G751 or<br />

Unframed. The default is G751.<br />

Information about the physical device. Possible values are described in the<br />

“Device Flags” section under “Common Output Fields Description” on page 125.<br />

Information about the interface. Possible values are described in the “Interface<br />

Flags” section under “Common Output Fields Description” on page 125.<br />

Information about the link. Possible values are described in the “Link Flags”<br />

section under “Common Output Fields Description” on page 125.<br />

Current interface hold-time up and hold-time down, in milliseconds.<br />

(PPP and HDLC) Configured settings for keepalives.<br />

Chapter 6: Digital Transmission Interface Operational Mode <strong>Command</strong>s<br />

• interval seconds—Time in seconds between successive keepalive requests.<br />

The range is 10 seconds through 32,767 seconds, with a default of 10 seconds.<br />

• down-count number—Number of keepalive packets a destination must fail to<br />

receive before the network takes a link down. The range is 1 through 255, with<br />

a default of 3.<br />

• up-count number—Number of keepalive packets a destination must receive<br />

to change a link's status from down to up. The range is 1 through 255, with a<br />

default of 1.<br />

Level of Output<br />

detail extensive none<br />

detail extensive<br />

All levels<br />

All levels<br />

All levels<br />

All levels<br />

All levels<br />

All levels<br />

All levels<br />

All levels<br />

All levels<br />

All levels<br />

All levels<br />

All levels<br />

detail extensive<br />

detail extensive none<br />

415

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