Cisco VS-C6509E-S720-10G User Manual page 267

Chapter 5 Physical Object Dialog Boxes
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The Kentrox DSU/CSU mode is configurable in the CLI but is currently not supported. The C6576M
Note
EMS will allow a user to configure this value, but it will log a warning message indicating that the value
is unsupported by IOS.
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SONET Path Header (C2) Area
The SONET Path Header (C2) area contains the following information:
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CRC—Cyclical redundancy check (CRC) word size. The CRC is an error-checking technique that
uses a calculated numeric value to detect errors in transmitted data.
DSU Mode—Data Service Unit (DSU) mode. This enables interoperability with other DSUs. The
local interface configuration must match the remote configuration. This attribute can have the
following values:
adtran
–
cisco
–
– digital-link
– larscom
– verilink
kentrox (6)
–
Near End Loopback Mode—Near end channel loopback mode. This mode can have the following
values:
– disabled
local—Sets the loopback after going through the framer toward the terminal.
–
network—Puts the near end in network loopback.
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Far End Loopback Mode—Far end channel loopback mode. If enabled, this mode puts the far end
in loopback by sending far-end alarm control (FEAC). This mode has the following values:
disabled
–
– remote
Payload Scrambling—Indicates whether or not SONET payload scrambling is enabled on the
interface. Payload scrambling ensures that there is sufficient bit-transition density to maintain the
transmit clock for synchronous signalling. Both ends of the connection must use the same
scrambling algorithm.
Encapsulation—Indicates whether HDLC or PPP encapsulation is used on the interface.
DSU Bandwidth—DSU subrate bandwidth in kilobits per second. This attribute reduces the DS3
bandwidth by padding the T3 frame.
SONET Overhead C2 Byte—Value of the SONET overhead Path Signal Label (C2), which indicates
the contents of the SONET STS-SPE Higher Order VC. This attribute is read-only. These are
possible values:
207 (0xCF) = PPP or HDLC with no payload scrambling
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22 (0x16) = PPP or HDLC with payload scrambling
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C6576M OSM Serial Subinterface Dialog Box
Cisco 6500/7600 Series Manager User Guide
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