Cisco ASR 1000

16-4
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
Chapter 16 Configuring the 2-Port and 4-Port Channelized T3 SPAs
Configuration Tasks
Step 3
Router(config-controller)# t1 t1-number
channel-group channel-number timeslots range
[speed {56 | 64}]
Specifies the T1 channel and time slots to be
mapped to each channel.
• t1-number—T1 number from 1 to 28.
• channel-number—Specifies a channel-group
mapping (0 to 23) under the designated T1.
• range—List of time slots under the channel
group. Time slots assigned to this T1 can be
1–24 or a combination of subranges
within
1–24. You can indicate a range using a
hyphen, commas, or a combination of both.
One time slot equals one DS0.
• speed— (Optional) Specifies the speed of a
time slot in kilobits per second. Valid values
are 56 and 64. The default speed of 64 kbps is
not mentioned in the configuration.
Step 4
Router(config-controller)# t1 t1-number framing
{esf | sf [hdlc-idle {0x7e | 0xff}] [mode {j1}]}
(Optional) Specifies the T1 framing type using the
framing command.
• sf—Specifies Super Frame as the T1 frame
type.
Note If you select sf framing, you should
consider disabling yellow alarm
detection because the yellow alarm
can be incorrectly detected with sf
framing.
• esf—Specifies Extended Super Frame as the
T1 frame type. This is the default.
• hdlc-idle—Allows you to set the idle pattern
for the T1 interface to either 0x7e (the default)
or 0xff.
• mode j1—(Optional) Specifies the JT-G704
Japanese frame type.
Command Purpose