5-12
PA-MC-2T3+ Multi-Channel T3 Port Adapter Installation and Configuration
OL-3526-05
Chapter 5 Configuring Channelized mode for the Cisco PA-MC-2T3+
Configuring a Channelized T3 Link
The example that follows is for a port adapter on a VIP in interface processor slot 1:
Router(config)#
controller T3 1/0/0
Router(config-controller)#
t1 6 framing sf
The example that follows is for a port adapter in slot 1 of the Cisco 7200 series routers:
Router(config)#
controller T3 1/0
Router(config-controller)#
t1 6 framing sf
•
Other options for setting Super Frame (SF) include:
router(config-controller)#
t1 6 framing ?
esf Extended Superframe Framing format
sf Superframe Framing Format
router(config-controller)#
t1 6 framing sf ?
hdlc-idle Specify the HDLC idle pattern on a T1
<cr>
router(config-controller)#
t1 6 framing sf hdlc-idle ?
0x7E Use 0x7E as HDLC idle pattern
0xFF Use 0xFF as HDLC idle pattern
router(config-controller)#
t1 6 framing sf hdlc-idle 0x7e ?
•
Set ESF framing format for T1 line 16 as follows:
The example that follows is for a port adapter on a VIP in interface processor slot 1:
Router(config)#
controller T3 1/0/0
Router(config-controller)#
t1 16 framing esf
The example that follows is for a port adapter in slot 1 of the Cisco 7200 series routers:
Router(config)#
controller T3 1/0
Router(config-controller)#
t1 16 framing esf
Note
Use of the 0xFF HDLC idle pattern may help prevent false yellow alarms in the remote T1 device when
SF framing is used.
Setting the Yellow Alarm Configuration for a T1 Line
You can use the [
no
]
t1
t1-line-number
yellow
{
detection
|
generation
}
command (where
t1-line-number
is 1–28) to turn the detection or generation of a yellow alarm on and off. When you select
SF framing, you should consider using the
no
t1-line-number
yellow detection
command to turn off
yellow alarm detection, because the yellow alarm can be incorrectly detected with SF framing.
Setting the Clock Source on a T1 Line
You can set the internal or line (network) clock source for a T1 line with the controller command:
t1
t1-line-number
clock source
{
internal
|
line
}
where:
•
t1-line-number
is 1–28.
•
The default clock source is internal.
Examples follow:
