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Cisco Nexus 3550 Comparison

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

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General

Rack Unit:1111111
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:4848484848144160
Data rates supported:100M, 1G, 10G, 25G100M1, 1G, 10G, 40G2100M1, 1G, 10G, 40G2100M1, 1G, 10G, 40G2100M1, 1G, 10G, 40G21G, 10G, 40G11G, 10G, 40G1
Buffer:1.3MB shared1.5MB shared1.5MB shared32GB shared

Layer 1

Layer 1 switching/app (min latency):Yes (3ns)Yes (3ns)Yes (3ns)Yes (3ns)Yes (5ns)Yes (5ns)

Layer 2 multiplexing

Layer 2 multiplexing (min latency):Yes (39ns3)Yes (39ns3)
Layer 2 multiplexing features:Max fan-in 48:1Max fan-in 48:1
VLAN tag/trunkingVLAN tag/trunking
IGMP snoopingIGMP snooping
MAC learningMAC learning
Layer 2 demultiplexingLayer 2 demultiplexing

Layer 2 switching/app

Layer 2 switching (min latency):Yes (96ns)Yes (95ns)
Layer 2 switching features:MAC Learning, STP, LLDPMAC learning
VLAN tag/trunkingVLAN tag/trunking
IGMP snoopingIGMP Snooping

Layer 2 timestamping

Layer 2 timestamping (resolution):Yes (2.8ns)Yes (2.8ns)Yes (70ps)
Layer 2 timestamping features:Max fan-in 48:1Max fan-in 48:1Max fan-in 40:1
Max instances 4Max instances 4Max instances 1
Max outputs per instance 1Max outputs per instance 1Max outputs per instance 8

Layer 3 switching/app

Layer 3 switching (min latency):Yes (130ns)
Layer 3 switching features:BGP, OSPF, PIM, VRRP, ACL, NAT

Notes

Notes1.Pending SW support: 100MbE only supported at layer 1. SFP module and functionality limitiations apply.1.100MbE only supported at layer 1. SFP module and functionality limitiations apply.1.100MbE only supported at layer 1. SFP module and functionality limitiations apply.1.100MbE module and functionality limitiations apply.1.40GbE interoperability limitations apply.1.40GbE interoperability limitations apply.
Notes2.40GbE only supported at layer 1, interoperability limitations apply. 2.40GbE only supported with 40G firmware and QSFP+ line card. Layer 1, interoperability limitations apply.2.40GbE interoperability limitations apply.
Notes3.Minimum latency not available at maximum fan-in or with layer 2 features.