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•
Digital Signal 1 (DS1) - A framing and formatting specification
that transmits 24 digital data channels on a T1 synchronous line.
Each channel transmits at 64 Kbps (full-duplex), providing an
aggregate bandwidth of 1.544 Mbps. Typical T1 lines are
long-distance, point-to-point connections used for private
networks and corporate Internet communication. The iFCP
protocol overhead for a clear-channel (private) T1 link is 4.4%,
which provides a bandwidth of 1.48 Mbps (0.18 MBps) for
storage traffic.
•
Thin Ethernet - A transmission medium specified by IEEE 802.3
that carries information at 10 Mbps (full-duplex) in baseband
form using low-cost (50-ohm type RG58) coaxial cable. The
specification was developed to enable communication of
LAN-connected computers. Thin Ethernet is also called 10 Base-T.
The iFCP protocol overhead for a thin Ethernet link is 6.3%,
which provides a bandwidth of 9.37 Mbps (1.17 MBps) for
storage traffic.
•
Digital Signal 3 (DS3) - A framing and formatting specification
that transmits 672 digital data channels on a T3 synchronous line.
Each channel transmits at 64 Kbps (full-duplex), providing an
aggregate bandwidth of 44.736 Mbps. Typical T3 lines are
long-distance, point-to-point connections used by ISPs
connecting to the Internet backbone and for the backbone itself.
— The iFCP protocol overhead for a clear-channel (private)
T3 link is 5.1%, which provides a bandwidth of 42.48 Mbps
(5.31 MBps) for storage traffic.
— The iFCP protocol overhead for an asynchronous transfer
mode (ATM) DS3 link is 22.7%, which provides a bandwidth
of 34.59 Mbps (4.32 MBps) for storage traffic.
•
Optical Container 1 (OC-1) - A specification that defines the
transport level for SONET traffic transmitted at 51.84 Mbps
(full-duplex) using fiber-optic cable.
— The iFCP protocol overhead for a packet over SONET (PoS)
OC-1 link is 8.9%, which provides a bandwidth of 47.22 Mbps
(5.90 MBps) for storage traffic.
— The iFCP protocol overhead for an ATM OC-1 link is 17.9%,
which provides a bandwidth of 42.58 Mbps (5.32 MBps) for
storage traffic.
Implementing SAN Internetworking Solutions
Implementing SAN Internetworking Solutions
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