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Chapter 2
Configuring T1/E1 Interfaces
Command
Step 3
Router(config-controller)# linecode {b8zs |
hdb3}
For T1 Controllers:
Step 4
Router(config-controller)# framing {sf |
esf}
For E1 Controllers:
Router(config-controller)# framing {crc4 |
no-crc4}
Step 5
channel-group t1 t1-number {timeslots
range} [speed {56 | 64}]
Example:
Router(config-controller)#
channel-group 1 timeslots 1-24
Router(config-controller)#
channel-group 1 timeslots 1-31
Step 6
exit
Example:
Router(config)# exit
OL-27620-01
Purpose
Selects the linecode type.
•
b8zs—Specifies binary 8-zero substitution (B8ZS)
as the linecode type. Valid for T1 controller only.
This is the default for T1 lines.
•
hdb3—Specifies high-density binary 3 (HDB3) as
the linecode type. Valid for E1 controller only. This
is the default for E1 lines.
Selects the framing type.
•
sf—Specifies Super Frame as the T1 frame type. (sf
is not supported.)
•
esf—Specifies Extended Super Frame as the T1
frame type. This is the default for E1.
crc4—Specifies CRC4 as the E1 frame type. This is
•
the default for E1.
no-crc4—Specifies no CRC4 as the E1 frame type.
•
Define the time slots that belong to each T1 or E1 circuit.
•
t1 t1-number—Channel-group number. When
configuring a T1 data line, channel-group numbers
can be values from 0 to 23. When configuring an E1
data line, channel-group numbers can be values from
0 to 30.
•
timeslots range—One or more time slots or ranges
of time slots belonging to the channel group. The
first time slot is numbered 1. For a T1 controller, the
time slot range is from 1 to 24. For an E1 controller,
the time slot range is from 1 to 31.
Channelization not supported. Use full time slots
Note
range 1-24 for t1 and 1-31 for e1.
speed—(Optional) Speed of the underlying DS0s.
•
Can be 56 or 64.
Each channel group is presented to the system as a serial
interface that can be configured individually. Once a
channel group has been created with the channel-group
command, the channel group cannot be changed without
removing the channel group. To remove a channel group,
see the section
Changing a Channel Group
Configuration, page
Exits configuration mode and returns to the EXEC
command interpreter prompt.
Cisco ME-3600X-24CX Series Switch Chassis Configuration Guide
Required Configuration Tasks
2-8.
2-3
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