Multichannel STM-1 Port Adapter for the Cisco 7500 Series Router
Configuration Tasks
11
12.0(14)S
Configuring an E1 Line Mapped to a TUG-3
Step 9
Router(config-ctrlr-au3)# [
no
]
tug-2
tug-2-number
e1
e1-number
loopback
[
local
|
network
{
line
|
payload
}]
Specifies a loopback for an E1 line.
•
tug-2-number
—a number in the range of
1 to 7
•
e1-number
—a number in the range of 1 to 3
•
local
—Loops transmitted E1 output back to
the router via the internal E1 framer and loops
E1 output to the network via the internal E1
framer.
•
network
—Loops E1 input back to the
network.
Step 10
Router(config-ctrlr-au3)# [
no
]
tug-2
tug-2-number
e1
e1-number
shutdown
Shuts down an E1 line.
•
tug-2-number
—a number in the range of
1 to 7
•
e1-number
—a number in the range of 1 to 3
Step 1
Router(config)#
controller sonet 2/0/0
Enters SONET controller configuration mode.
Step 2
Router(config-controller)# [
no
]
aug mapping au-4
Maps the AUG to AU-4 with the following
muxing/alignment/mapping:
C-12 <-->VC-12 <--> TU-12<--> TUG-2
<--> TUG-3 <--> VC-4 <--> AU-4 <--> AUG
Step 3
Router(config-controller)#
au-4
au-4-number
tug-3
tug-3-number
Specifies the AU-4 and TUG-3 number to
configure:
•
au-4-number
—a number in the range of 1 to N
where N is the STM level.(For the
PA-MC-STM-1 N is always 1.)
•
tug-3-number
—a number in the range of
1 to 3.
Step 4
Router(config-ctrlr-tug3)#
mode c-12
Specifies the mode of operation of a TUG-3.
•
c-12
—The TUG-3 is divided into 21 TU-12s
each carrying an E1.
Step 5
Router(config-ctrlr-tug3)#
tug-2
tug-2-number
e1
e1-number
framing
{
crc4
|
no crc4
}
Specifies the type of framing used an by an E1
line.
•
tug-2-number
—a number in the range of
1 to 7
•
e1-number
—a number in the range of 1 to 3
•
crc4—
4-bit cyclic redundancy check
•
no crc4—
basic framing
The default is CRC4.
