벤더별
QSFP+ transceiver 차이점 비교표
For QSFP+ formfactor there are different
variants.
(without Active-Optical-Cables and Direct-Attached-Cables)
The main difference between SR4 and LR4 is the connector type. QSFP+ do
have an integrated CWDM Mux/Demux which multiplexes all 4 lanes to only one
fiber. This gives the ability to use a LC-Duplex connector with a standard
Multimode- or Singlemode-Fiber.
QSFP+ with MTP/MPO connector are more price sensitive. There is just a
cabling with MTP/MPO cables needed.
|
Description/
Connector
|
Distance
|
Wavelength
|
Connector
|
Details
|
Interoperability
|
Provider
|
|
QSFP+
SR4
|
100m (OM3)
150m (OM4)
|
4 x 850nm
|
MTP/MPO
|
IEEE 802.3ba
(40GBASE-SR4)
|
QSFP+ extended SR4
SFP+ SR
|
Cisco
QSFP-40G-SR4
Juniper
QFX-QSFP-40GE-SR4
Arista 40GBASE-SR4
Brocade
40G-QSFP-SR4*
|
|
QSFP+
eSR4
|
300m (OM3)
400m (OM4)
|
4 x 850nm
|
MTP/MPO
|
optimized VCSEL with better
performance of RMS spectral width compared with QSFP+ SR4
|
QSFP+ SR4
SFP+ SR
|
Juniper QFX-QSFP-40GE-ESR4
*Arista 40GBASE-XSR4
|
|
QSFP+ MMR4
|
100m (OM3)
120m (OM4)
|
1270nm,
1290nm,
1310nm,
1330nm
|
LC
|
Multimode optimized
4-Kanal CWDM Mux/Demux inside
|
|
Juniper
JNP-QSFP-40G-LX4
|
|
QSFP+ BIDI SR
|
100m (OM3)
120m (OM4)
|
1 x 850nm
1 x 900nm
|
LC
|
BIDI for Multimode is hot!
20G per lambda!
|
only available from Cisco at
the moment
|
Cisco
QSFP-40G-SR-BD
|
|
QSFP+ IR4
|
1km (G.652)
|
1270nm,
1290nm,
1310nm,
1330nm
|
LC
|
4-Channel CWDM Mux/Demux inside
|
SFP+ CWDM
|
Arista 40GBASE-LRL4
Juniper
JNP-QSFP-40GE-IR4
|
|
QSFP+ LR4
|
10km (G.652)
|
1270nm,
1290nm,
1310nm,
1330nm
|
LC
|
IEEE 802.3ba (40GBASE-LR4)
4-Channel CWDM Mux/Demux inside
|
SFP+ CWDM
|
Juniper
JNP-QSFP-40G-LR4
Cisco QSFP-40G-LR
Arista 40GBASE-LR4
Brocade
40G-QSFP-LR4
|
|
QSFP+ LR4
|
10km (G.652)
|
1270nm,
1290nm,
1310nm,
1330nm
|
LC
|
IEEE 802.3ba (40GBASE-LR4)
4-Channel CWDM Mux/Demux inside
|
SFP+ CWDM
|
Q.1640G.20
|
|
QSFP+ ER4
|
30km (G.652)
|
1270nm,
1290nm,
1310nm,
1330nm
|
LC
|
IEEE 802.3ba (40GBASE-ER4)
|
SFP+ CWDM
|
Q.1640G.40
|
|
QSFP+
PIR4
|
1km (G.652)
|
4 x 1310nm
|
MTP/MPO
APC
|
4 x 10G operations on SMF
|
QSFP+ parallel LR4
SFP+ LR
|
Arista 40GBASE-PLRL4
Juniper JNP-QSFP-4x10GE-IR
|
|
QSFP+
PLR4
|
10km (G.652)
|
4 x 1310nm
|
MTP/MPO
APC
|
4 x 10G operations on SMF
|
QSFP+ short parallel LR4
SFP+ LR
|
Arista
40G-PLR4
|
* Juniper enables for their QFX-QSFP-40GE-ESR4 also 4 x 10G operations -
to split up one QSFP+ port in 4 dedicated 10G ports.
The same applies for Brocade. For this kind of operation they defined a
special article/partnumber 40G-QSFP-SR4-INT. From a technical point of view
this "split operation" is possible with all QSFP+ mentioned above.
QSFP+ get always 4 x 10G from the host on the electrical side. Only the
programming of the transceiver needs to be adapted for the host. On the optical
path you have to check how to split up the signal in 4 dedicated 10G lines. For
the ones with MTP/MPO receptacle this is not a problem with Breakout-cables.
*기술문의 엑사통신 기술팀
for more information.
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