Technical Specs

Model name @100 VAC input @200 VAC input @-48 VDC input Minimum number of
power supplies
Notes
NOTE
Device
ships with
two power
supplies.
One
provides
system
power, but
both must
be
installed to
provide
sucient
airow
from fans.
VDX 6940-144S 5.119 A
512 W
1747.5 BTU/hr
2.506 A
500 W
1706.54 BTU/hr
10.3 A
499.2 W
1703.81 BTU/hr
1
Data port specications (Ethernet)
Model Port type Number of ports Description
VDX 6940-36Q 40-GbE 36 24 base ports can be upgraded to 36 with single port upgrade license.
Up to 144 10-
GbE ports in SFP
breakout mode
(also referred to as
4x10 GbE
breakout mode)
Each 40-GbE port can be broken out into four independent 10-GbE SFP+ ports,
providing up to 144 10-GbE SFP+ ports.
VDX 6940-144S 10-GbE xed 96 64 base ports can be upgraded to 96 in two 16-port increments with port upgrade
licenses.
40-GbE 12 Base model with no 40-GbE ports can be upgraded to 12 in two 6-port increments
with port upgrade licenses.
Up to 48 10-GbE
ports in SFP
breakout mode
Each 40-GbE port can be broken out into four independent 10-GbE SFP+ ports,
providing up to 48 10-GbE SFP+ ports. Combined with 96 10-GbE xed ports, up
144 10-GbE ports can be provided on the VDX 6940-144S.
100-GbE Up to 4 100-GbE
ports
Up to four 40/100-GbE capable dual personality ports can be congured as 100-
GbE ports.
For each port congured for 100-GbE operation, three ports are disabled for 40-
GbE operation. Therefore the following congurations are possible:
• 9 40 GbE QSFP ports and 1 100 GbE QSFP28 port
• 6 40 GbE QSFP ports and 2 100 GbE QSFP28 ports
• 3 40 GbE QSFP ports and 3 100 GbE QSFP28 ports
• No 40 GbE QSFP ports and 4 100 GbE QSFP28 ports
Data port specications (Ethernet)
ExtremeSwitching VDX 6940 Technical Specications
10 9036113-00