arbitrated loop

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arbitrated loop

A ring topology used in Fibre Channel. Up to 127 devices may be attached in the loop, but only two can communicate at the same time, reflecting the channel nature of Fibre Channel technology. To communicate with a device several hops down the ring, each device repeats the data to its adjacent node. See Fibre Channel.


Arbitrated Loop
This ring topology is widely used and can connect up to 127 nodes without using a switch. All devices share the bandwidth, and only two can communicate with each other at the same time, with each node repeating the data to its adjacent node. TX means transmit, and RX means receive.
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References in periodicals archive ?
Fibre Channel Arbitrated Loop is a little different.
Fibre Channel Arbitrated Loop (FCAL) architecture allows for up to 126 devices per loop, but throughput drops as devices are added because each node represents a latency factor against total loop performance.
Two Types Of Fibre Channel Arbitrated Loop: Private And Public
Fibre Channel arbitrated loop can support up to 126 devices within a single loop.
The problem may stem from loop arbitration (Fibre Channel arbitrated loop) or because every drive must pass the loop to the next.
These features have been around since the first Fibre Channel arbitrated loop, but today's Storage Area Network (SAN) configurations are even more challenging.
* Phase One: Using the Fibre Channel Arbitrated Loop (FCAL) standard, extend server-to-storage connections over the WAN.
It is a "looped switch", providing interconnection for FC-AL fibre channel arbitrated loops, and upgradable to a full fabric switch via software downloads.

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