Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 128

JUNOS 10.1 Network Interfaces Configuration Guide
interface. For channelized IQ and channelized IQE interfaces, channel 1 identifies
the first channelized interface. A nonconcatenated (that is, channelized) SONET/SDH
OC48 interface has four OC12 channels, numbered 0 through 3.
To determine which types of channelized PICs are currently installed in the router,
use the
interface (CLI). Channelized IQ and IQE PICs are listed in the output with "intelligent
queuing IQ" or "enhanced intelligent queuing IQE" in the description. For more
information, see "Channelized Interfaces Overview" on page 393.
For ISDN interfaces, you specify the B-channel in the form
B-channel ID and can be 1 or 2. You specify the D-channel in the form
NOTE: For ISDN, the B- and D-channel interfaces do not have any configurable
parameters. However, when interface statistics are displayed, B- and D-channel
interfaces have statistical values.
NOTE: In the JUNOS Software implementation, the term logical interfaces generally
refers to interfaces you configure by including the
interface-name]
end of the interface name, as in
number is
Although channelized interfaces are generally thought of as logical or virtual, the
JUNOS Software sees T3, T1, and NxDS0 interfaces within a channelized IQ or IQE
PIC as physical interfaces. For example, both
as physical interfaces by the JUNOS Software. In contrast,
are considered logical interfaces because they have the
names.
Interface Naming for a Routing Matrix Based on a TX Matrix Router
A routing matrix based on a Juniper Networks TX Matrix Router is a multichassis
architecture composed of one TX Matrix router and from one to four interconnected
T640 routers. From the perspective of the user interface, the routing matrix appears
as a single router. The TX Matrix router controls all the T640 routers, as shown in
Figure 3 on page 59.
58
Interface Naming Overview
command from the top level of the command-line
show chassis hardware
hierarchy level. Logical interfaces have the
ge-0/0/0.1
.
1
bc-pim/0/port:n
dc-pim/0/port:0
unit statement at the [edit interfaces
descriptor at the
.logical
or t1-0/0/0:0.1 , where the logical unit
t3-0/0/0 and t3-0/0/0:1
and
t3-0/0/0.2
at the end of the interface
.2
. is the
n
.
are treated
t3-0/0/0:1.2