Arista 7300 Series

Overview:

The Arista 7300 Series modular switches are part of the Arista portfolio of data center switches. The 7300 Series with 7300X Series line cards increase flexibility and scalability for data center switches supporting both leaf and spine and SplineTM applications for collapsed end of row and aggregation. The 7300X systems share a common architecture with the Arista 7050X and 7250X Series and offer a choice of three modular systems, a 4-slot, 8-slot and 16 slot that support advanced features for network monitoring, precision timing and network virtualization to deliver scalable high performance for software defined cloud networking.

Increased adoption of 10 Gigabit Ethernet servers and applications requiring higher bandwidth is driving rapid adoption of 10 and 40 Gigabit Ethernet switching. The 7300 Series support a choice of high density line cards in combination with wire speed layer 2/3/4 performance that provides a flexible combination of 100M, 1G, 10G and 40G switching to design large leaf and spine networks for scale-out of east-west traffic patterns with low latency and power efficiency.

With reversible front-to-rear or rear-to-front airflow, redundant and hot swappable supervisor, power, fabric and cooling modules the system is purpose built for data centers. The 7300 Series is energy efficient with typical power consumption of under 3 watts per 10GbE port for a fully loaded chassis. All of these attributes make the Arista 7300 Series an ideal platform for building reliable, low latency, resilient and scalable data center networks. Combined with Arista EOS the 7300 Series delivers advanced features for big data, cloud, virtualized and traditional designs.

Arista EOS

All Arista products including the 7300 Series runs the same Arista EOS software binary image simplifying network administration with a single standard across all switches. Arista EOS is a modular switch operating system with a unique state sharing architecture that cleanly separates switch state from protocol processing and application logic. Built on top of a standard Linux kernel, all EOS processes run in their own protected memory space and exchange state through an in-memory database. This multi-process state sharing architecture provides the foundation for in-service-software updates and self-healing resiliency together with stateful switchover without the loss of data plane forwarding.

Arista EOS enables advanced monitoring and automation capabilities such as Zero Touch Provisioning, LANZ, VM Tracer and Linux based tools to be run natively on the switch.

Product Highlights

Performance Over 40 Terabits per second fabric capacity Up to 30 billion packets per second Up to 2.56 Terabit per second per line card Wire speed L2 and L3 forwarding 2,048 wire-speed 10GbE ports 512 wire-speed 40GbE ports Latency below 2usec High Availability 1+1 Supervisor redundancy N+N Grid redundant power system N+1 Fan module redundancy Redundant fabric modules Cloud Networking Ready VXLAN and VM Tracer OpenFlow, DirectFlow and eAPI 12MB Dynamic Buffer per port group Advanced Provisioning & Monitoring Zero Touch Provisioning (ZTP) LANZ for microburst detection DANZ Advanced Mirroring for visibility sFlow Self-configure and recover from USB Advanced Event Monitoring

Resilient Control Plane Quad-core Hyper-threaded x86 CPU 16GB DRAM / 4GB Flash Dual Supervisor modules User applications can run in a VM Data Center Class Design 8RU, 13RU or 21RU chassis options Front-to-back or back-to-front reversible airflow for optimized cooling Under 3W per 10GbE port typical power for lower cost of ownership Dense 10GbE and 40GbE Arista Extensible Operating System Single binary image for all products Fine-grained truly modular network OS Stateful Fault Containment (SFC) Stateful Fault Repair (SFR) Full access to Linux shell and tools Extensible platform - bash, python, C++

Features & Benefits:

Layer 2 Features 802.1w Rapid Spanning Tree 802.1s Multiple Spanning Tree Protocol Rapid Per VLAN Spanning Tree (RPVST+) 4096 VLANs Q-in-Q 802.3ad Link Aggregation/LACP 64 ports/channel 1024 groups per system Multi-Chassis Link Aggregation (MLAG) 64 ports per MLAG Custom LAG Hashing Resilient LAG Hashing 802.1AB Link Layer Discovery Protocol 802.3x Flow Control Jumbo Frames (9216 Bytes) IGMP v1/v2/v3 snooping Storm Control Private VLANs RAIL Layer 3 Features Routing Protocols: OSPF, OSPFv3, BGP, MP-BGP, IS-IS, and RIPv2 64-way Equal Cost Multipath Routing (ECMP) Resilient ECMP Routes VRF BFD Route Maps IGMP v2/v3 PIM-SM / PIM-SSM Anycast RP (RFC 4610) VRRP Virtual ARP (VARP) Policy Based Routing (DirectFlow) Network Address Translation * Static NAT Dynamic NAT uRPF Advanced Monitoring and Provisioning Zero Touch Provisioning (ZTP) Latency Analyzer and Microburst Detection (LANZ) * Configurable Congestion Notification (CLI, Syslog) Streaming Events (GPB Encoded) Capture/Mirror of congested traffic Advanced Monitoring and Aggregation Port Mirroring 4 to 128 (4 active sessions per ASIC) L2/3/4 Filtering on Mirror Sessions* Mirror to EOS/SSD* Advanced Event Management suite (AEM) CLI Scheduler Event Manager Event Monitor Linux tools Optional SSD for logging and data capture Integrated packet capture/analysis with TCPDump RFC 3176 sFlow Restore & configure from USB Blue Beacon LED for system identification Software Defined Networking (SDN) Openflow 1.0 Arista DirectFlow * eAPI OpenStack Neutron Support

Virtualization Support VXLAN Gateway (draft-mahalingam-dutt-dcops-vxlan-01) * VXLAN Bridging VXLAN Routing * VXLAN Tunnel Endpoint * VM Tracer VMware Integration VMware vSphere support VM Auto Discovery VM Adaptive Segmentation VM Host View Security Features IPv4 / IPv6 Ingress & Egress ACLs using L2, L3, L4 fields MAC ACLs ACL Drop Logging ACL Counters Control Plane Protection (CPP) DHCP Relay / Snooping MAC Security TACACS+ RADIUS Quality of Service (QoS) Features Up to 8 queues per port 802.1p based classification DSCP based classification and remarking * Explicit Congestion Notification (ECN) QoS interface trust (COS / DSCP) Strict priority queueing Weighted Round Robin (WRR) Scheduling * Per-Priority Flow Control (PFC) Data Center Bridging Extensions (DCBX) 802.1Qaz Enhanced Transmissions Selection (ETS) * ACL based DSCP Marking * ACL based Policing * Policing/Shaping Rate limiting Audio Video Bridging (AVB) * Network Management CloudVision Task-Oriented Multi-Device CLI 10/100/1000 Management Port RS-232 Serial Console Port USB Port SNMP v1, v2, v3 Management over IPv6 Telnet and SSHv2 Syslog AAA Industry Standard CLI Extensibility Linux Tools Bash shell access and scripting RPM support Custom kernel modules Programmatic access to system state Python C++ Native KVM/QEMU support

Standards Compliance 802.1D Bridging and Spanning Tree 802.1p QOS/COS 802.1Q VLAN Tagging 802.1w Rapid Spanning Tree 802.1s Multiple Spanning Tree Protocol 802.1AB Link Layer Discovery Protocol 802.3ad Link Aggregation with LACP 802.3ab 1000BASE-T 802.3z Gigabit Ethernet 802.3ae 10 Gigabit Ethernet 802.3ba 40 Gigabit Ethernet RFC 2460 Internet Protocol, Version 6 (IPv6) Specification RFC 4861 Neighbor Discovery for IP Version 6 (IPv6) RFC 4862 IPv6 Stateless Address Autoconfiguration RFC 4443 Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification SNMP MIBs RFC 3635 EtherLike-MIB RFC 3418 SNMPv2-MIB RFC 2863 IF-MIB RFC 2864 IF-INVERTED-STACK-MIB RFC 2096 IP-FORWARD-MIB RFC 4363 Q-BRIDGE-MIB RFC 4188 BRIDGE-MIB RFC 2013 UDP-MIB RFC 2012 TCP-MIB RFC 2011 IP-MIB RFC 2790 HOST-RESOURCES-MIB RFC 3636 MAU-MIB RMON-MIB RMON2-MIB HC-RMON-MIB LLDP-MIB LLDP-EXT-DOT1-MIB LLDP-EXT-DOT3-MIB ENTITY-MIB ENTITY-SENSOR-MIB ENTITY-STATE-MIB ARISTA-ACL-MIB ARISTA-QUEUE-MIB RFC 4273 BGP4-MIB RFC 4750 OSPF-MIB ARISTA-CONFIG-MAN-MIB ARISTA-REDUNDANCY-MIB RFC 2787 VRRPv2MIB MSDP-MIB PIM-MIB IGMP-MIB IPMROUTE-STD-MIB SNMP Authentication Failure trap ENTITY-SENSOR-MIB support for DOM (Digital Optical Monitoring) User configurable custom OIDs

Table Sizes
STP Instances	64 (MST)/510 (RPVST+)
IGMP Groups	288K, with 8K unique groups
ACLs	4K to 128K
Egress ACLs	1K to 16K
ECMP	64-way, 1K groups
	Base Mode	UFT Modes
MAC Addresses	32K	288K
IPv4 Hosts	32K	208K
IPv4 Routes - Unicast	16K	144K *
IPv4 Routes - Multicast	16K	104K
IPv6 Hosts	16K	104K
IPv6 Routes - Unicast	8K /64, 4K /128	77K *
IPv6 Routes - Multicast	4K	No Change

Maximum values dependent on shared resources in some cases

Specifications:

Scaling Data Center Performance

The Arista 7300X Series delivers wire speed switching at layer 2 and layer 3 to enable dramatically faster and simpler network designs for data centers that lowers network capital and operational expenses. When used in conjunction with Arista 1G and 10G leaf switches and Arista’s Multi-Chassis Link Aggregation (MLAG) technology, a pair of 7300X Switches can support over 12,000 Servers with a leaf and spine active/active L2 network topology. A combination of 16 7300X in a spine at Layer 3 scales the network up to over 32K 10G Servers in a fully non-blocking, low-latency, two-stage network that provides predictable and consistent application performance. The flexibility of the L2 and L3 multi-path design options combined with support for open standards provides maximum flexibility, scalability and network wide virtualization. Arista EOS advanced features provides control, and visibility with single point of management.

Software Defined Cloud Networks

Arista Software Defined Cloud Networking (SDCN), combines the principles that have made cloud computing the unstoppable force that it is: automation, self service provisioning, and linear scaling of both performance and economics coupled with the trend in Software Defined Networking that delivers: network virtualization, custom programmability, simplified architectures, and lower capital expenditure. This combination creates a best-in-class software foundation for maximizing the value of the network to both the enterprise and service provider data center. A new architecture for the most mission-critical location within the IT infrastructure that simplifies management and provisioning, speeds up service delivery, lowers costs and creates opportunities for competitive differentiation, while putting control and visibility back in the hands of the network and systems administrators.

The Four Pillars of Arista's Software Defined Cloud Networking:

• Universal Cloud Network - scalable standards based MLAG at Layer 2, ECMP for Layer 3 and VXLAN for most flexibility
• Cloud Control - Standards based AEM, ZTP/ZTR, LANZ and DANZ
• Network Wide Virtualization - Multi-vendor API Support with eAPI, VXLAN and NSX, and other encapsulation techniques
• Network Applications and Automated Management - Network applications; single point of management and open - Openflow, Openstack, OpenVirtualSwitch and OVSDB

Dynamic Buffer Allocation

In cut-through mode, the Arista 7300X series switches forward packets with a latency of less than 2 usec. Upon congestion, the packets are buffered in shared packet memory that has a total size of 12 Mbytes. Unlike other architectures that have fixed per-port packet memory, the 7300X Series use Dynamic Buffer Allocation (DBA) to allocate up to 6MB of packet memory to a single port for lossless forwarding.

Maximum Flexibility for Scale Out Network Designs

Scale out network designs enable solutions to start small and evolve over time. A simple two-way design can grow as wide as 64-way without significant changes to the architecture. The 7300X Series include enhancements that allow for flexible scale-out designs:

• 64-way ECMP and 64-way MLAG to provide scalable designs and balance traffic evenly across large scale 2 tier leaf-spine designs
• Flow based FDLB architecture to balance large flows and dynamic packet buffering to absorb congestion from microbursts
• Flexible allocation of L2 and L3 forwarding table resources for more design choice
• Wide choice of dense 10GbE and 40GbE modules with broad range of optics and cables for multi-speed flexibility
• VXLAN routing, bridging and gateway for physical to virtualization communication to enable next generation data center designs
• DANZ, sFlow, and multi-port mirroring to detect micro-burst congestion and provide network wide visibility and monitoring

Enhanced Features for High Performance Networks

The Arista 7300X Series delivers a suite of advanced traffic control and monitoring features to improve the agility of modern high performance environments, with solutions for data monitoring, precise timing and next-generation virtualization.

Smart System Upgrade

Smart System Upgrade is a network application designed to address one of the most complicated and challenging tasks facing data center administrators - network infrastructure maintenance. Changes to the underlying network infrastructure can affect large numbers of devices and cause significant outages. SSU provides a fully customizable suite of features that tightly couples data center infrastructure to technology partners allowing for intelligent insertion and removal, programmable updates to software releases and open integration with application and infrastructure elements.

Precise Data Analysis

Arista Latency Analyzer (LANZ) is an integrated feature of EOS. LANZ provides precise real-time monitoring of micro-burst and congestion events before they impact applications, with the ability to identify the sources and capture affected traffic for analysis.

Virtualization

Supporting next-generation virtualized data centers requires tight integration with orchestration tools and emerging encapsulation technologies such as VXLAN. The 7300 Series builds on the valuable tools already provided by the Arista VM Tracer suite to integrate directly into encapsulated environments. Offering a wire-speed gateway between VXLAN and traditional L2/3 environments, the 7300 Series makes integration of non-VXLAN aware devices including servers, firewalls and load-balancers seamless and provides the ability to leverage VXLAN as a standards based L2 extension technology for non-MPLS environments.

Advanced Event Management (AEM)

Simplifying the overall operations, AEM provides the tools to customize alerts and actions. AEM is a powerful and flexible set of tools to automate tasks and customize the behavior of EOS and the operation of the overall data center switching infrastructure. AEM allows operators to fully utilize the intelligence within EOS to respond to real-time events, automate routine tasks, and automate actions based on changing network conditions.

Line Card Modules

Wire-speed line cards deliver up to 1.92 Billion packets per second of forwarding with a single stage architecture that delivers provides fair access to all ports. Line cards contains up to 24MB of packet memory that ensures up to 6MB for any single port for lossless forwarding. Each line card connects to all fabric modules in a non-blocking full mesh and leverages flow based dynamic load balancing to improve the fabric efficiency by reducing the probability of hash polarization.

The Arista 7300 Series can be populated with any combination of line cards. For environments requiring the highest performance combined with scalability a range of both copper and fiber options is available addressing dense 1G/10G and 10G/40G with full support for industry standard connections and comprehensive layer 2 and 3 features for flexible deployment choice.

Designed for High Availability and Manageability

The Arista 7300 Series are designed for continuous operations with system wide monitoring of both hardware and software components, simple serviceability and provisioning to prevent single points of failure. The hardware supports high-availability with hot-swap of all components with redundant supervisors, power supplies, fabric and cooling modules. Fabric redundancy provides deterministic degradation and integrated reversible fan systems for dynamic temperature control combined with N+1 redundancy. Each of the 7300 Series offers power redundancy that supports both power source and power supply redundancy.

The Arista EOS software supports stateful failover between the dual redundant supervisors as well as self-healing stateful fault containment (SFC), stateful fault repair (SFR) and live patching through in-service-software updates to help ensure continuous service.

The Arista 7300 lowers total cost of ownership as it is designed to be efficient with power per port as low as 3W per 10GbE port which combined with reversible cooling to for both leaf and spine data center deployment produces the most reliable, dense and power efficient modular switch.

7300 Chassis - 16-slot, 8-slot and 4-slot

The Arista 7300 chassis provides room for two supervisor modules, four, eight or 16 line card modules, multiple power supply modules, and four fabric modules. The 7304 chassis fits into 8 rack units while the 7308 chassis fits into 13U and the 7316 chassis fits in 21 RU of a standard data center rack. Supervisor and line card modules plug in from the front, as do power supply modules, while the fabric and fan modules are inserted from the rear. The midplane is completely passive and provides control plane connectivity to each of the fabric and line card modules. The system is optimized for data center deployments with front-to-rear and rear to front airflow options.

7300 Supervisor Module

The supervisor modules for the 7300 series run Arista Extensible Operating System (EOS) and handle all control plane and management functions of the system. One supervisor module is needed to run the system and a second can be added for stateful 1+1 redundancy. Each supervisor module takes up only a half slot resulting in very efficient use of space and a higher density design. The quad-core x86 CPU with 16GB of DRAM and an optional SSD provides the control plane performance needed to run an advanced data center switch scaling to over 2,000 physical ports and thousands of virtual ports. A pulse per second clock input port enables synchronizing with an external source to improve the accuracy of network timing and monitoring tools.

7300 Fabric and Fan Module

At the heart of the 7300 series is the fabric. It interconnects all line cards in a non-blocking architecture irrespective of the traffic pattern providing a full 2.56 Tbps of forwarding to each line card module. Each line card module connects to the fabric with multiple links and flows are spread across these paths to efficiently utilize the available fabric capacity. The fabric modules are always active-active, providing high availability and can be hot-swapped with graceful performance degradation. The fabric modules for the three chassis are different based on the size of the chassis and each accommodate a set of individual hot-swap fan modules. The fan modules support forward and reverse airflow and provide redundant cooling. Each fan module can be independently replaced without any impact of the system.

7300 Power Supply Module

The 7300 series switches are equipped with reversible airflow direction 3000W AC power supplies. The power supplies are grid redundant and hot-swappable. The power supplies are platinum climate saver rated and have an efficiency of over 93% with single stage conversion to the internal DC voltage.

Comparison Chart:

7300 Series Technical Specifcations
Chassis	DCS-7316	DCS-7308	DCS-7304
Supervisor slots	2	2	2
Linecard Slots	16	8	4
Fabric Module Slots	4	4	4
Power Supply Slots	8	6	4
Fan Modules	32	16	8
Physical Dimensions (HxWxD)	36.6” x 17.36” x 27.8” (93 x 44.1 x 70.6cm)	22.53” x 17.36” x 23.74” (57.2 x 44.1 x 60.3cm)	13.86” x 17.36” x 23.74” (35.2 x 44.1 x 60.3cm)
Rack Space	21RU	13RU	8RU
Weight (Chassis only)	178 lbs (81 kg)	110 lbs (49.9 kg)	78 lbs (35.3 kg)
Weight (Fully confgured system)	536 lbs (243.6 kg)	299 lbs (135.6 kg)	188.4 lbs (85.45 kg)
Maximum 10GbE Port Density	2048 Ports	1,024 Ports	512 Ports
Maximum 40GbE Port Density	512 Ports	256 Ports	128 Ports
Maximum Throughput / Packets per Second	40 Tbps / 30 Bpps	20 Tbps / 15 Bpps	10 Tbps / 7.5 Bpps
Maximum Power Consumption	12000W	6000W	3000W
Fabric Module	DCS-7316X-FM	DCS-7308X-FM	DCS-7304X-FM
Redundancy	Graceful Degradation	Graceful Degradation	Graceful Degradation
Physical Dimensions (HxWxD)	32.2” x 3.7” x 15.9” (81.78 x 9.4 x 40cm)	17.3” x 3.7” x 11.8” (43.9 x 9.4 x 30cm)	11.80” x 3.70” x 10.27” (30x 9.4 x 26.1cm)
Weight	37.2 lbs (7.8 kg)	17.3 lbs (7.8 kg)	10.2 lbs (4.6 kg)
Typical Power (Maximum)	550W (760W)	195W (343W)	97.5W (172W)
Chassis Support	DCS-7316	DCS-7308	DCS-7304
Linecard Module	DCS-7300X-32Q-LC	DCS-7300X-64S-LC	DCS-7300X-64T-LC
Ports	32 QSFP+ (10G/40G)	48 SFP+ & 4 QSFP+	48 10GBASE-T & 4 QSFP+
Max 10GbE	128 (via splitter cables)	64 (16 via splitter cables)	64 (16 via splitter cables)
Max 40GbE	32	4	4
Port Buffer	24MB	12MB	12MB
Weight	10.2 lbs (4.6 kg)	9.6 lbs (4.35kg)	10.2 lbs(4.6kg)
Typical (Maximum) Power *	219W (372W)	166W (232W)	290W (430W)
Physical Dimensions (WxHxD)	11.83” x 17.11” x 1.73” (30 x 43.5 x 4.4 cm)
Chassis Support	DCS-7316, DCS-7308 and DCS-7304

* Typical power consumption measured at 25C ambient with 50% load on all ports

Characteristics:

Supervisor Module	DCS-7300-SUP
Processor	2.6GHz, Quad Core, x86, 64-bit
System Memory	16 GB
Flash Storage Memory	4 GB
RS-232 Serial Ports	One (RJ-45)
100/1000 Management Ports	Two (RJ-45)
USB 2.0 Interface	Two
SSD Storage	100 GB Optional
Physical Dimensions (WxHxD)	1.73” x 8.24” x 11.84” (4.4 x 21 x 30.1cm)
Weight	4.2 lbs (1.9 kg)
Typical Power (Maximum)	65W (80W)
Chassis Support	DCS-7316, DCS-7308 and DCS-7304
PWR-3000AC Power Supply Specifcations
Branch Circuit	200 - 240V, 16A (20A North America)
Input Frequency	50/60 Hz, single phase AC
Output Power	3000W (2550W in reverse)
Input Connector	IEC 320 C19
Efficiency (Typical)	Over 93% Platinum
Size (WxHxD)	2.75” x 4.13” x 11.65” (7.0 x 10.5 x 29.6cm)
Weight	5.5 lbs (2.49 kg)
Chassis Support	DCS-7316, DCS-7308 and DCS-7304
Environmental Characteristics
Operating Temperature	0 to 40°C (32 to 104°F)
Storage Temperature	-25 to 70°C (-13 to 158°F)
Relative Humidity	20 to 95%
Operating Altitude	0 to 10,000 ft, (0-3,000m)
Standards Compliance
EMI	FCC Part 15 Class A, ICES-003 Class A, VCCI Class A
Safety	IEC/EN/UL/CSA 60950 CE, uTUVc Mark
Other	ROHS-2 compliant

Interface Type	SFP+ ports	QSFP+ ports
40GBASE-CR4	-	0.5m-7m QSFP+ to QSFP+
AOC-40G-Q-Q		3m to 100m
40G-UNIV		150m (OM3) / 150m (OM4) 500m (SM)
40GBASE-SR4	-	100m (OM3) /150m (OM4)
40GBASE-XSR4	-	300m (OM3) /400m (OM4)
40G-PLRL4	-	1km (1km 4x10G LR/LRL)
40G-PLR4	-	10km (10km 4x10G LR/LRL)
40G-LRL4	-	1km
40GBASE-LR4	-	10km
10GBASE-CR	SFP+ to SFP+: 0.5m-5m	0.5m-5m QSFP+ to 4 x SFP+
10G-AOC	SFP+ to SFP+: 3m-30m
10GBASE-SRL	100m	-
10GBASE-SR	300m	-
10GBASE-LRL	1km
10GBASE-LR	10km	-
10GBASE-ER	40km	-
10GBASE-ZR	80km
10G-DWDM	80km	-
100Mb 1GbE SX, LX, TX	Yes	-

Documentation:

Download the Arista 7300 Series Datasheet (PDF).