SONET/SDH Path Attributes

Any CES path can only be configured to operate in access mode. Each path has a configurable text description. The SONET/SDH signal label byte (C2) is configurable. The SONET/SDH path trace string (J1) is configurable. Payload scrambling cannot be enabled on CES paths. The valid SONET and SDH path configurations are shown in Table 1.

Table 1. Valid SONET and SDH Path Configurations

Framing

Path Configuration Options Per Physical Port

Max Number of Paths Per Physical Port

Max Number of Paths Per TDM Satellite Port

SDH

STM1>AUG1>VC4>TUG3>TUG2>VC12>E1 STM1>AUG1>VC3>TUG2>VC12>E1

63 E1 or 512 n*64 kb/s

63 E1

SONET

OC3>STS1 SPE>DS3>E1

SONET

OC3>STS1 SPE>VT GROUP>VT1.5 SPE>DS1

84 DS1 or 512 n*64 kb/s

84 DS1

SONET

OC3>STS1 SPE>DS3

3 DS3

SONET

OC3>STS1 SPE>DS3>DS1

84 DS1, 63 E1 or 512 n*64 kb/s

SDH

STM1>AUG1>VC4>TUG3>TUG2>TU11>VC11>DS1 STM1>AUG1>VC3>TUG2>VC11>DS1

84 DS1 or 512 n*64 kb/s

84 DS1

SDH

STM1>AUG1>VC3>DS3>DS1

84 DS1, 63 E1 or 512 n*64 kb/s

SDH

STM1>AUG1>VC4>TUG3>VC3>E3 STM1>AUG1>VC3>E3

3 E3

SDH

STM1>AUG1>VC3>DS3

3 DS3

SDH

STM1>AUG1>VC3>DS3>E1

3 DS3

All SONET/SDH path alarms are configurable to be either enabled (the default) or disabled. The MTU size is configurable per path in the range of 512 to 2092. The path uses a default MTU size set to equal the largest possible CES packet size.

Load balancing options are not applicable to channelized CES paths.

When an Ethernet port is configured in WAN mode (xgig wan), you can change specific SONET/SDH parameters to reflect the SONET/SDH requirements for this port.