5-4
Cisco ONS 15530 Configuration Guide and Command Reference
78-14227-01, Cisco IOS Release 12.1(10)EV2
Chapter5 Configuring Transponder Line Card Interfaces
Configuring Protocol Encapsulation or Clock Rate
Note Disable autonegotiation 2-Gbps Fibre Channel client equipment connected to Cisco ONS 15530 and set
the speed to match the clock rate or protocol encapsulation set on transparent interfaces. The transponder
line cards only recognize the configured clock rate or protocol encapsulation and do not support
autonegotiation.
Caution Do not configure y-cable protection with Sysplex CLO, Sysplex ETR, or ISC compatibility protocol
encapsulation, or with the OFC safety protocol.
Sysplex CLO and Sysplex ETR are supported outside the nominal range of the cl ock rat es for th e
Cisco ONS15530 because of the nature of the traffic type.
Table 5 -1 lists the clock rates for well-known protocols supported by the transponder line card:
Note Error-free transmission of some D1 video signals (defined by the SMPTE 259M standard) and test
patterns (such as Matrix SDI) cannot be guaranteed by the Cisco ONS 15500 Series because of the
pathological pattern in D1 video. This well-known limitation is usu all y overcome by the D1 vi deo
equipment vendor, who uses a proprietary, second level of scrambling. No standards exist at this time
for the second level of scrambling.
Table5-1 Supported Clock Rates for Well-Known Protocols
Well-Known Protocol Clock Rate (in kbps)
DS3 44,736
DV11 in ADI2 mode
1. DV = digital video
2. ADI = Asynchronous Digital Interface
270,000
E3 34,368
ESCON 200,000
Fibre Channel (1 Gbps) 1,062,500
Fibre Channel (2 Gbps) 2,125,000
FICON (1 Gbps) 1,062,500
FICON (2 Gbps) 2,125,000
Gigabit Ethernet 1,250,000
ISC Compatibility Mode (ISC-1) 1,062,500
ISC Peer Mode (ISC-3) 2,125,000
SONET OC-1 51,840
SONET OC-3/SDH STM-1 155,520
SONET OC-12/SDH STM-4 622,080
SONET OC-24/SDH STM-8 933,120
SONET OC-48SDH STM-16 2,488,320