Compact SFP (CSFP)
Yoga and Outdoor Estrella-Shenglan LI
Vice President Sales Marketing at Hubei Baozou Electronic Commerce Co., Ltd.
Compact SFP (CSFP) principle:
Compact SFP (CSFP) goes even further, by using same SFP port we can have 2 BiDi bidirectional streams of traffic, thus we can get 2xGE out from one SFP port. Only thing which is required that equipment line card support CSFP and actually for this not so many vendor equipment has been designed to accept CSFP modules.
When Compact SFP (CSFP) is used?
Most commonly CSFP is used in Central Office/Aggregation site operating at Tx1&Tx2:1490nm Rx1&Rx2:1310nm and it get’s connected to 2 CPE sites which have simple BiDi SFP operating in Tx:1310nm Rx:1490 at each site. Compact SFP (CSFP) major application is to use it in FTTx scenario where we have (point-to-point) connections from Central Office/Aggregation Site to (CPE) Customer Premises Equipment. With help of CSFP we can double the Central Office/Aggregation Site port density (we can achieve 2xGE from one aggregation site port) and as well reduce power consumption in Central Office as we use 2 times less ports.
Which Vendor platforms support Compact SFP (CSFP)?
Most popular vendors which support Compact SFP are Cisco, Huawei and Nokia (ex. Alcatel) and here as well we need to be careful as not all Cisco, Huawei and Nokia (ex. Alcatel) platforms will support Compact SFPs.
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