Cisco ASR 9000 Series Configuring page 13

Configuring Channelized SONET/SDH on the Cisco ASR 9000 Series Router
Command or Action
Step 3
clock source {internal | line}
Example:
RP/0/RSP0/CPU0:router(config-sonet)#
clock source internal
Step 4
framing sonet
Example:
RP/0/RSP0/CPU0:router(config-sonet)#
framing sonet
Step 5
sts number
Example:
RP/0/RSP0/CPU0:router(config-sonet)# sts
1
Step 6
mode mode
Example:
RP/0/RSP0/CPU0:router(config-stsPath)#
mode t3
Step 7
width number
Example:
RP/0/RSP0/CPU0:router(config-stsPath)#
width 3
Step 8
root
Example:
RP/0/RSP0/CPU0:router(config-stsPath)#
root
OL-26061-03
Cisco ASR 9000 Aggregation Services Router Interfaces and Hardware Component Configuration Guide
Purpose
Configures the SONET port transmit clock source, where the
internal keyword sets the internal clock and the line keyword sets
the clock recovered from the line.
Use the line keyword whenever clocking is derived from the
•
network. Use the internal keyword when two routers are
connected back to back or over fiber for which no clocking is
available.
line is the default keyword.
•
Internal clocking is required for SRP interfaces.
Note
Configures the controller for SONET framing.
SONET framing (sonet) is the default.
Configures the STS stream specified by number. The ranges are:
1 to 48—1 Port Channelized OC-48/STM-16 SPA
•
1 to 3—1-Port Channelized OC-3/STM-1 SPA
•
1 to 12—2-Port Channelized OC-12/DS0 SPA
•
Sets the mode of interface at the STS level. The possible modes are:
• t3—SONET path carrying T3
vt15-t1—SONET path carrying virtual tributary 1.5 T1s
•
(VT15 T1) (1-Port Channelized OC-3/STM-1 SPA and 2-Port
Channelized OC-12c/DS0 SPA only)
• pos—Packet over SONET
Configures the number of the STS streams that are concatenated.
The possible values for number are:
• 1—Indicating one STS stream
3—Indicating three STS streams (STS-3c)
•
12—Indicating concatenation of 12 STS streams (STS-12c)
•
48—Indicating concatenation of 48 STS streams (STS-48c).
•
This is the default on the 1-Port Channelized OC-48/STM-16
SPA.
Widths 3, and 12, and 48 are configured on STS paths at natural
boundaries, which coincide with the following path numbers:
1, 4, 7, 10, and so on, for STS-3c
•
• 1, 13, 25, and 37 for STS-12c
• 1 for STS-48c
Exits to global configuration mode.
How to Configure Channelized SONET/SDH
HC-329