Cisco Cisco IOS Software Release 12.0(19)S
IP Services Engine Line Cards
Feature Overview
4
Cisco IOS Release 12.0(19)S
Channel Combinations in the ISE Line Card Ports
The STS-1s/VC-3s can be configured as single STS-1 POS interfaces or as single DS-3 (T3) or E3 serial
interfaces. These STS-1s/VC-3s can also be combined to create interfaces of larger capacity (for
example, three STS-1s are combined to form an STS-3).
interfaces. These STS-1s/VC-3s can also be combined to create interfaces of larger capacity (for
example, three STS-1s are combined to form an STS-3).
shows the channelization combinations supported by each fiber port of the ISE line cards.
European SDH Multiplexing Terms and Description
This section describes the relationship between the various levels of the SDH STM-n multiplexing
hierarchy. To configure interfaces under SDH framing, the port controller is configured for either
SDH AU-3 or SDH AU-4 framing, and the individual interface channels are defined and configured as
either POS (STM-n) interfaces or serial (DS-3 or E3) interfaces.
hierarchy. To configure interfaces under SDH framing, the port controller is configured for either
SDH AU-3 or SDH AU-4 framing, and the individual interface channels are defined and configured as
either POS (STM-n) interfaces or serial (DS-3 or E3) interfaces.
At the user level, the following terms apply:
•
AU-3:
Administrative Unit 3 controller used in SDH framing to carry STM-n, DS-3 or E3 data.
Administrative Unit 3 controller used in SDH framing to carry STM-n, DS-3 or E3 data.
•
AU-4:
Administrative Unit 4 controller used in SDH framing to carry STM-n, DS-3 or E3 data.
Administrative Unit 4 controller used in SDH framing to carry STM-n, DS-3 or E3 data.
•
DS-3:
Serial interface that carries data at 44.736 Mbps. The North American term for DS-3 is T3.
Serial interface that carries data at 44.736 Mbps. The North American term for DS-3 is T3.
•
E3:
Serial interface that carries data at 34.368 Mbps.
Serial interface that carries data at 34.368 Mbps.
OC-48
STS-48
STM-16
2488.32 Mbps
48 x DS-3/E3s
Note
“T3” is the North American term for DS-3.
Table 1
OC-n and SONET/SDH Signal Capacities
Optical Carrier Signal
SONET Signal
(North America)
SDH Signal
(Europe)
Signal Bit Rate
Serial Line Capacity
Table 2
ISE Line Card Channelization Support
Card Type
SONET
Channelization
(per fiber port)
SDH-AU4
Channelization
(per fiber port)
SDH-AU3
Channelization
(per fiber port)
4-port OC-12/STM-4
STS-12c,
STS-3c,
STS-1:DS-3
or combination of
STS-3c and
STS-1:DS-3
STM-4,
STM-1,
TUG-3:VC-3:DS-3/E3
or combination of
STM-1 and
TUG-3:VC-3:DS-3/E3
STM-4.
STM-1,
VC-3:DS-3/E3
or combination of
STM-1 and
VC-3:DS-3 /E3
16-port OC-3/STM-1
STS-3c or
STS-1:DS-3
STM-1 or
TUG-3:VC-3:DS-3/E3
STM-1 or
VC-3:DS-3 /E3