DETAILED STEPS
Purpose
Command or Action
Creates a logical channel group on an E1 line, where:
Router(config-controller)#
e1 e1#
channel-group channel-group# timeslots
list-of-timeslots speed
[
56 | 64
]
Step 1
•
e1#
—
A number in the range of 1 to 3.
Example:
•
channel-group
—
Defines a logical channel group to be a channelized
E1 line.
•
channel-group#
—
Specifies the channel group number.
•
list-of-timeslots
—
Specifies the number of timeslots that make up the
E1 line.
•
speed
[
56 | 64
]
—
Specifies the line speed in kilobits per second. Valid
values are 56 and 64
Creates an E1 unframed (clear channel) logical channel group on an E1
line, where:
Router(config-controller)#
e1 e1#
unframed
Step 2
•
e1#
—
A number in the range of 1 to 3.
Sets the type of framing (including unframed) used by an E1 line, where:
Router(config-controller)#
e1 e1#
[unframed | framing]
{
crc4 | no-crc4
}
Step 3
•
e1#
—
A number in the range of 1 to 3.
•
crc4
—
Specifies 4-bit cyclic redundancy check (CRC) framing.
•
no-crc4
—
Specifies basic framing.
Sets the clock source on an E1 line, where:
Router(config-controller)#
e1 e1# clock
source
{
internal | line
}
Step 4
•
internal
—
Specifies that the internal clock source is used.
•
line
—
Specifies the E1 line as the clock source.
Sets the national reserved bits on an E1 line, where:
Router(config-controller)#
e1 e1# national
bits pattern
Step 5
•
e1#
—
A number in the range of 1 to 3.
•
pattern
—
A hexadecimal value in the range 0x0 to 0x1F (hexadecimal)
or 0 to 31 (decimal).
Specifies a loopback on an E1 line, where:
Router(config-controller)#
e1 e1# loopback
[local | network]
Step 6
•
e1#
—
A number in the range of 1 to 3.
Example:
•
local loopback
—
(Optional) Loops data from the transmit path to the
receive path.
•
network loopback
—
(Optional) Loops data received on the external
port to the transmit path and back out the external port.
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
302
OL-14127-17
Configuring the 1-Port Channelized OC-3/STM-1 SPA and 1-Port Channelized OC-12/STM-4 SPA
Required Configuration Tasks