Data traffic types
Unicast, multicast, broadcast.
Software features Lenovo Cloud Networking OS (CNOS):
Layer 2 switching, Layer 3 switching, virtual local area networks (VLANs), VLAN tagging,
spanning tree protocol (STP), link aggregation (trunk) groups (LAGs), virtual LAGs (vLAGs),
Layer 2 failover, quality of service (QoS), IPv4/IPv6 management, IPv4/IPv6 routing, equal cost
multiple paths (ECMP), IPv4/IPv6 virtual router redundancy protocol (VRRP), IPv4/IPv6 policy-
based routing (PBR), Converged Enhanced Ethernet, Network Policy Agent, VXLAN gateway,
Python scripting, REST API programming, Telemetry agent.
Performance
Non-blocking architecture with wire-speed forwarding of traffic:
100% line-rate performance
Up to 3.6 Tbps aggregated throughput
As low as 480 ns (QSFP28) or 535 ns (SFP28) port-to-port switching latency
Up to 2,678 Million packets per second (Mpps) (64-byte packets)
Up to 9,216-byte jumbo frames
Buffer size: 22 MB
Scalability
MAC address forwarding database entries: 104,000
VLANs: 4,095 (3,999 user-configurable; 96 reserved)
Rapid Per VLAN Spanning Tree (RPVST) instances: 500
Multiple STP (MSTP) instances: 64
Link aggregation groups: 72
Active ports in a link aggregation group: 32
Maximum ingress ACL entries: 3,072
Maximum egress ACL entries: 512
Static routes (IPv4 / IPv6): 256 / 256
Dynamic routes (IPv4 / IPv6): 15,870 / 6,143
Cooling
Five N+1 redundant hot-swap fans. Rear (non-port side) to front (port side) or front to rear
airflow.
Power supply
Two load-sharing, redundant hot-swap 770 W AC (100 - 240 V) power supplies (each power
supply has an IEC 320-C14 connector).
Hot-swap parts
SFP28/SFP+/QSFP28/QSFP+ transceivers, DAC cables, and AOCs; power supplies; fans.
Management
ports
1x 10/100/1000 Mb Ethernet port (RJ-45); 1x RS-232 port (RJ-45); 1x USB 2.0 port (Micro-
USB Type A; for additional firmware, log, and configuration files storage).
Management
interfaces
Industry standard command line interface (isCLI); SNMP v1, V2, and v3; REST API. Optional
Lenovo XClarity for discovery, inventory, monitoring and events. Optional Lenovo Networking
Content Pack for VMware vRealize Log Insight. Optional Lenovo Networking Neutron Plugin
for OpenStack-based environments. Ansible support for IT automation. Ganglia support for
telemetry analytics.
Security features
Secure Shell (SSH); Secure Copy (SCP); Secure FTP (sFTP); user level security; Role-based
Access Control (RBAC); LDAP/LDAPS, RADIUS, and authentication; access control
lists (ACLs); secure mode; Trusted Platform Module (TPM) 1.2.
Hardware
warranty
Three-year (Machine Type 7159) customer-replaceable unit and onsite limited warranty with
9x5 next business day terms. Optional warranty service upgrades are available through
Lenovo: onsite service, 24x7 coverage, 2-hour or 4-hour response time, 1-year or 2-year
warranty extensions, basic installation services.
Software
maintenance
Three-year software support and subscription is included in the base warranty. Optional 1-
year and 2-year warranty extensions include software support and subscription.
Mean Time
Between Failures
(MTBF)
242,685 hours.
Dimensions
Height: 44 mm (1.7 in.); width: 441 mm (17.3 in.); depth: 487 mm (19.2 in.)
Component
Specification
Lenovo ThinkSystem NE2572 RackSwitch
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