Description

Cisco Nexus31128PQ Network Switch Ghana

The Cisco Nexus31128PQ Ghana comes in a compact two-rack-unit (2RU) form factor and runs the industry-leading Cisco® NX-OS Software operating system, providing customers comprehensive features and functions that are widely deployed. The Cisco Nexus31128PQ Ghana Switch is a dense, high-performance Layer 2 and 3, 10- and 40-Gbps switch that is a member of the Cisco Nexus 3100 switches. The Cisco Nexus31128PQ Ghana features the second-generation Cisco Nexus 3000 series and offers improved port density, scalability, and features compared to the first-generation switches. It supports both forward and reverse (port side exhaust and port side intake) airflow schemes with AC and DC power inputs. The Cisco Nexus31128PQ Ghana is well suited for data centers that require a cost-effective, power-efficient line-rate Layer 2 and 3 access or leaf switch.

Features

Wire-rate Layer 2 and 3 switching on all ports

The Cisco Nexus31128PQ Ghana features Layer 2 and 3 switching of up to 2.5 Terabits per second (Tbps) and up to 1.4 Billion packets per second (bpps) is provided in a compact 2RU form-factor switch.

High availability

Cisco Nexus31128PQ Ghana has Virtual Port Channel (vPC) technology providing Layer 2 multipathing through the elimination of Spanning Tree Protocol and enables fully utilized bisectional bandwidth and simplified Layer 2 logical topologies without the need to change the existing management and deployment models.
The 64-way Equal-Cost Multipath (ECMP) routing enables the use of Layer 3 fat-tree designs and allows organizations to prevent network bottlenecks, increase resiliency, and add capacity with little network disruption.
Hot swappable Power-Supply Units (PSUs) and fans.

High Performance

The Cisco Nexus31128PQ Ghana delivers low nominal latency, which enables customers to implement high-performance infrastructure for High-Frequency Trading (HFT) and High-Performance Computing (HPC) workloads.

Purpose-built Cisco NX-OS operating system with comprehensive, proven innovations

PowerOn Auto Provisioning (POAP) enables touchless bootup and configuration of the switch, drastically reducing provisioning time.
Cisco Embedded Event Manager (EEM) and Python scripting enable automation and remote operations in the data center.
Advanced buffer monitoring reports real-time buffer utilization per port and per queue, which allows organizations to monitor traffic bursts and application traffic patterns.
Ethanalyzer is a built-in packet analyzer for monitoring and troubleshooting control-plane traffic and is based on the popular Wireshark open source network protocol analyzer.
Precision Time Protocol (PTP; IEEE 1588) provides accurate clock synchronization and improved data correlation with network captures and system events.
Complete Layer 3 unicast and multicast routing protocol suites are supported, including Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), Routing Information Protocol Version 2 (RIPv2), Protocol Independent Multicast Sparse Mode (PIM-SM), Source-Specific Multicast (SSM), and Multicast Source Discovery Protocol (MSDP).

Cisco Nexus31128PQ Specifications

Description	Specification
Physical	2RU fixed form-factor switch 8 QSFP+ ports 96 SFP+ ports 2 redundant power supplies 2 redundant (1+1) fans (2 rotors per fan) Management, console, and 2 USB flash-memory ports
Performance	2.5 Tbps switching capacity Forwarding rate up to 1.4 bpps Line-rate traffic throughput (both Layer 2 and 3) on all ports Configurable Maximum Transmission Units (MTUs) of up to 9216 bytes (jumbo frames)
Hardware tables and scalability	Number of MAC addresses	288,000
	Number of VLANS	4096
	Number of spanning-tree instances	RSTP : 512 MSTP : 64
	Number of Access Control List (ACL) entries	4000 ingress 1000 egress
	Routing table	16,000 prefixes and 16,000 host entries 8000 multicast routes
	Number of EtherChannels	64 (with vPC)
	Number of ports per EtherChannel	16
	Buffer size	12 MB shared
	Boot flash memory	64 GB SSD
Power	Frequency	50 to 60 Hz
	Power supply types	AC (forward and reversed airflow) DC (forward and reversed airflow)
	Typical operating power	148 watts (W)
	Maximum power	413 watts (W)
	AC PSUs Input voltage Frequency Efficiency	100 to 240 VAC 50 to 60 Hz 89 to 91% at 220V
	DC PSUs Input voltage Maximum current (PSU output – System input) Efficiency	-40 to -72 VDC 78A 85 to 88%
	Power-supply efficiency	89 to 91% at 220V
	Typical heat dissipation	505 BTU/hr
	Maximum heat dissipation	1409 BTU/hr
Cooling	Forward and reversed airflow schemes Forward airflow : Port-side exhaust (air enters through fan tray and power supplies and exits through ports); supported with AC and DC power supplies Reversed airflow : Port-side intake (air enters through ports and exits through fan tray and power supplies); supported with AC power supply only Redundant fans Hot swappable (must swap within 1 minute)
Sound	Measured sound power (maximum) Fan speed : 40% duty cycle Fan speed : 70% duty cycle Fan speed : 100% duty cycle	66.1 dBA 70.6 dBA 76.9 dBA
Environment	Dimensions (height x width x depth)	3.39 x 17.40 x 23.70 in. (8.6 x 44.2 x 60.2 cm)
	Weight	22.2 lb (10.1 kg)
	Operating temperature	32 to 122°F (0 to 50°C)
	Storage temperature	-40 to 158°F (-40 to 70°C)
	Operating relative humidity	10 to 85% non-condensing Up to 5 days at maximum (85%) humidity Recommend ASHRAE data center environment
	Storage relative humidity	5 to 95% non-condensing
	Altitude	0 to 10,000 ft (0 to 3000m)

Software features

Description	Specification
Layer 2	Layer 2 switch ports and VLAN trunks IEEE 802.1Q VLAN encapsulation Support for up to 4096 VLANs Rapid Per-VLAN Spanning Tree Plus (PVRST+) (IEEE 802.1w compatible) MSTP (IEEE 802.1s) : 64 instances Spanning Tree PortFast Spanning Tree Root Guard Spanning Tree Bridge Assurance Cisco EtherChannel technology (up to 16 ports per EtherChannel) LACP : IEEE 802.3ad vPC Advanced Port Channel hashing based on Layer 2, 3, and 4 information Jumbo frames on all ports (up to 9216 bytes) Storm control (unicast, multicast, and broadcast) Private VLANs NvGRE Entropy Resilient Hashing
Layer 3	Layer 3 interfaces : Routed ports on interfaces, Switch Virtual Interfaces (SVIs), Port Channels, and sub interfaces (total : 1024) 64-way ECMP 4000 ingress and 1000 egress ACL entries Routing protocols : Static, RIPv2, EIGRP, OSPFv2, and BGP Bidirectional Flow Detection (BFD) for BGP HSRP and VRRP ACL : Routed ACL with Layer 3 and 4 options to match ingress and egress ACLs VRF : VRF-lite (IP VPN), VRF-aware unicast (BGP, OSPF, and RIP), and VRF-aware multicast uRPF with ACL; strict and loose modes Jumbo frame support (up to 9216 bytes) Advanced BGP features including BGP add-path for eBGP and iBGP, remove-private-as enhancements and eBGP next hop unchanged IP-in-IP Tunnel support VXLAN
Multicast	Multicast : PIMv2, PIM-SM, and PIM-SSM Bootstrap Router (BSR), Automatic Rendezvous Point (Auto-RP) and Static RP Multicast Source Discovery Protocol (MSDP) and Anycast RP Internet Group Management Protocol (IGMP) Versions 2 and 3
Quality of service (QoS)	Layer 2 IEEE 802.1p (Class of Service [CoS]) 8 unicast and 8 multicast hardware queues per port Per-port QoS configuration CoS trust Port-based CoS assignment Modular QoS CLI (MQC) compliance ACL-based QoS classification (Layers 2, 3, and 4) MQC CoS marking Differentiated Services Code Point (DSCP) marking Weighted Random Early Detection (WRED) CoS-based egress queuing Egress strict-priority queuing Egress port-based scheduling : Weighted Round-Robin (WRR) Explicit Congestion Notification (ECN) Priority Flow Control (with 3 no-drop queues and 1 default queue with strict priority scheduling between queues Policy Based Routing (PBR)
Security	Ingress ACLs (standard and extended) on Ethernet Standard and extended Layer 3 to 4 ACLs : IPv4, Internet Control Message Protocol (ICMP), TCP, User Datagram Protocol (UDP), etc. VLAN-based ACLs (VACLs) Port-based ACLs (PACLs) Named ACLs ACLs on virtual terminals (vtys) DHCP snooping with Option 82 Port number in DHCP Option82 DHCP relay Dynamic Address Resolution Protocol (ARP) inspection Configurable CoPP SPAN with ACL Filtering
Management	Switch management using 10/100/1000-Mbps management or console ports CLI-based console to provide detailed out-of-band management In-band switch management Locator and beacon LEDs Port-based locator and beacon LEDs Configurable CoPP Configuration rollback SSHv2 Telnet AAA AAA with RBAC RADIUS TACACS+ Syslog Syslog generation on system resources (for example, FIB tables) Embedded packet analyzer SNMP v1, v2, and v3 Enhanced SNMP MIB support XML (NETCONF) support Remote Monitoring (RMON) Advanced Encryption Standard (AES) for management traffic Unified username and passwords across CLI and SNMP Microsoft Challenge Handshake Authentication Protocol (MS-CHAP) Digital certificates for management between switch and RADIUS server Cisco Discovery Protocol Versions 1 and 2 RBAC Cisco SPAN on physical, Port Channel, VLAN, and Fibre Channel interfaces ERSPAN Ingress and egress packet counters per interface PTP (IEEE 1588) boundary clock Network Time Protocol (NTP) Cisco OHMS Comprehensive bootup diagnostic tests Cisco Call Home Cisco DCNM Advanced buffer monitoring Linux Bash NX-API