Details:

Description

Feature	Nexus 3550-T Programmable Network Platform	Nexus 3550-F Programmable Layer 2 Application Platform	Nexus 3550-F Programmable Multiplexer Switch	Nexus 3550-F High Precision Timestamping Switch	Nexus 3550-F Modular Layer 1 Matrix Switch	Nexus 3550-H High-density Layer 1-144 Switch	Nexus 3550-H High-density Layer 1-160 Switch
Rack Unit	1	1	1	1	1	1	1
Maximum port count and options	48p SFP+	48p SFP+/12p QSFP+	48p SFP+/12p QSFP+	48p SFP+/12p QSFP+	48p SFP+/12p QSFP+	36p QSFP+	20p QSFP-DD
Number of switching channels	48	48	48	48	48	144	160
Data rates supported	100M, 1G, 10G, 25G	100M1, 1G, 10G, 40G2	100M1, 1G, 10G, 40G2	100M1, 1G, 10G, 40G2	100M1, 1G, 10G, 40G2	1G, 10G, 40G1	1G, 10G, 40G1
Buffer	1.3MB shared	1.5MB shared	1.5MB shared	32GB shared	–	–	–
Layer 1 switching/app (min latency)	–	Yes (3ns)	Yes (3ns)	Yes (3ns)	Yes (3ns)	Yes (5ns)	Yes (5ns)
Layer 2 multiplexing (min latency)	–	Yes (39ns3)	Yes (39ns3)	–	–	–	–
Layer 2 multiplexing features	–	Max fan-in 48:1	Max fan-in 48:1	–	–	–	–
VLAN tag/trunking	–	VLAN tag/trunking	VLAN tag/trunking	–	–	–	–
IGMP snooping	–	IGMP snooping	IGMP snooping	–	–	–	–
MAC learning	–	MAC learning	MAC learning	–	–	–	–
Layer 2 demultiplexing	–	Layer 2 demultiplexing	Layer 2 demultiplexing	–	–	–	–
Layer 2 switching (min latency)	Yes (96ns)	Yes (95ns)	–	–	–	–	–
Layer 2 switching features	MAC Learning, STP, LLDP	MAC learning	–	–	–	–	–
Layer 2 timestamping (resolution)	–	Yes (2.8ns)	Yes (2.8ns)	Yes (70ps)	–	–	–
Layer 2 timestamping features	–	Max fan-in 48:1	Max fan-in 48:1	Max fan-in 40:1	–	–	–
Max instances	–	Max instances 4	Max instances 4	Max instances 1	–	–	–
Max outputs per instance	–	Max outputs per instance 1	Max outputs per instance 1	Max outputs per instance 8	–	–	–
Layer 3 switching (min latency)	Yes (130ns)	–	–	–	–	–	–
Layer 3 switching features	BGP, OSPF, PIM, VRRP, ACL, NAT	–	–	–	–	–	–

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