Channelized Intelligent Queuing Interface Naming

Channelized interfaces enable you to configure a number of individual channels that subdivide the bandwidth of a larger interface and minimize the number of PICs that an installation requires.

NOTE: Channelized IQ interfaces require M-series Enhanced FPCs. Wherever the JUNOS documentation refers to channelized interfaces and PICs without the "intelligent queuing" or "IQ" descriptor, they are referring to the original channelized interfaces and PICs.

You can configure each port of a channelized IQ PIC as a single interface that uses the entire available bandwidth, or partition each port into smaller data channels. Following are the interface names associated with channelized IQ PICs:

• coc12-fpc/pic/port—On a Channelized OC-12 IQ PIC
• coc1-fpc/pic/port:channel—On a Channelized OC-12 IQ PIC
• ct3-fpc/pic/port<:channel>—On a Channelized OC-12 IQ PIC or a Channelized DS-3 IQ PIC
• cstm1-fpc/pic/port—On a Channelized STM-1 IQ PIC
• cau4-fpc/pic/port:channel—On a Channelized STM-1 IQ PIC
• ct1-fpc/pic/port<:channel>—On a Channelized OC-12 IQ PIC or a Channelized DS-3 IQ PIC
• ce1-fpc/pic/port<:channel>—On a Channelized E1 IQ PIC or a Channelized STM-1 IQ PIC
• e1-fpc/pic/port<:channel>—E1 channels configured on a Channelized E1 IQ or a Channelized STM-1 IQ PIC
• ds-fpc/pic/port<:channel>—NxDS-0 channels configured on a Channelized OC-12 IQ PIC, Channelized STM-1 IQ PIC, Channelized DS-3 IQ PIC, or Channelized E1 IQ PIC
• so-fpc/pic/port<:channel>—SONET/SDH channels configure four OC-3 channels on a Channelized OC-12 IQ PIC, one OC-12 channel on a Channelized OC-12 IQ PIC, or one STM-1 channel on a Channelized STM-1 IQ PIC
• t1-fpc/pic/port<:channel>—T1 channels configured on a Channelized OC-12 IQPIC or a Channelized DS-3 IQ PIC
• t3-fpc/pic/port<:channel>—T3 channels configured on a Channelized OC-12 IQ PIC or a Channelized DS-3 IQ PIC

How Interface Configurations Are Displayed

When you display a configuration, using either the show command in configuration mode or the show configuration top-level command, interfaces are listed in numerical order as follows:

• From lowest to highest slot number
• From lowest to highest PIC number
• From lowest to highest port number