■
POS framing
■
Cyclic redundancy check (CRC) checking
■
Loopback configuration
SONET/SDH
SONET is an ANSI standard for transmitting bits over fiber-optic cable. SDH is the
international standard defined by the International Telecommunication Union (ITU).
SONET/SDH is the physical infrastructure of choice for carrier ATM networks operating
at speeds above 50 Mbps.
SONET/SDH allows carriers to build high-speed international links without requiring
conversion from one transmission protocol to another (for example, T1 to T3 or T1
to E3 conversion).
SONET transmission speeds start at 51.84 Mbps and are referred to as OC1. SDH
transmission speeds start at 155.52 Mbps and are referred to as STM1. All other
speeds are multiples of these base numbers. Table 18 on page 364 shows the speeds
of the most common SONET/SDH implementations.
Table 18: Most Common SONET/SDH Implementations
Transmission Speed
SDH
SONET
51.84 Mbps
—
OC1
155.52 Mbps
STM1
OC3
622.08 Mbps
STM4
OC12
2.4 Gbps
STM16
OC48
4.876640 Gbps
STM32
OC96
9.953280 Gbps
STM64
OC192
Platform Considerations
You can configure POS interfaces on the following E Series Broadband Services
Routers:
■
E120 router
■
E320 router
■
ERX1440 router
■
ERX1410 router
■
ERX710 router
364
■
Platform Considerations
JUNOSe 11.1.x Link Layer Configuration Guide
Содержание JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010
Страница 6: ...vi...
Страница 8: ...viii JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 26: ...xxvi List of Figures JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 34: ...2 Chapters JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 200: ...168 Monitoring Upper Level Protocols over Ethernet JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 230: ...198 Monitoring VLAN and S VLAN Subinterfaces JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 258: ...226 Monitoring 802 3ad Link Aggregation JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 334: ...302 Troubleshooting JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 394: ...362 Monitoring Multiclass MLPPP JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 406: ...374 Monitoring POS JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 468: ...436 Troubleshooting JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 498: ...466 Monitoring Bridged Ethernet JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 546: ...514 Monitoring Cisco HDLC JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 747: ...Part 2 Index Index on page 717 Index 715...
Страница 748: ...716 Index JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 774: ...742 Index JUNOSe 11 1 x Link Layer Configuration Guide...