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DESCRIPTION
SPECIFICATIONS
INCLUDED
WARRANTY
SHIPPING
FAQS
DESCRIPTION
Arista DCS-7500R2M-36CQ-LC – 36 x QSFP100 100GbE Line Card
The DCS-7500R2M-36CQ-LC is an Arista 7500R2 Series line card for the 7500 modular platform, providing 36 x QSFP100 100GbE with a 16 GB packet buffer. It is a front-serviceable, hot-insertable field-replaceable unit.
Key Specifications
Ports: 36 x QSFP100 100GbE
Packet buffer: 16 GB
AlgoMatch: Yes
Accelerated sFlow: No
Encryption: MACsec hardware-capable at wire speed on every port; encryption operation requires the applicable Arista license
Using breakout cables and appropriate transceivers (subject to EOS scale and transceiver capabilities), maximum port counts per card are: 36 x 40GbE, 36 x 100GbE.
Fully Scheduled Lossless Architecture
The Arista 7500 platform is a purpose-built multi-chip system with end-to-end scheduling: a cell-based fabric sprays uniform cells across all fabric links, Virtual Output Queues eliminate head-of-line blocking, distributed credit scheduling keeps every egress port independent, and deep buffers absorb in-cast and bursts without packet loss – so a fully populated chassis behaves like a single, internally lossless switching chip. All models run Arista EOS.
Deployment Scenarios
Spine and core layers: deep-buffer, fully scheduled forwarding for environments where in-cast overwhelms shallow-buffer switches
Data center interconnect and WAN edge: buffers absorb speed mismatches and long-haul burst patterns without drops
Service provider core and peering: full-table routing at chassis scale
Incremental scale-out: add cards to a populated 7500 chassis without a forklift upgrade
Choosing Among the Variants
7500 line card naming decodes as follows: M adds MACsec encryption capability (license-gated), K adds the large-routes resource profile, A denotes AlgoMatch and Accelerated sFlow support, and the generation marker (E, R, R2, R3) sets the ASIC family and buffer depth. Pick the plainest variant that meets your encryption and route-scale needs – the premium features carry price and power costs.
Frequently Asked Questions
Which chassis support the DCS-7500R2M-36CQ-LC?
The DCS-7500R2M-36CQ-LC installs in DCS-7516N, DCS-7512N, DCS-7508N, DCS-7504N, DCS-7508, DCS-7504.
What is the port configuration of the DCS-7500R2M-36CQ-LC?
The DCS-7500R2M-36CQ-LC provides 36 x QSFP100 100GbE. Packet buffer is 16 GB.
Does the DCS-7500R2M-36CQ-LC support encryption?
The DCS-7500R2M-36CQ-LC is MACsec hardware-capable. Encryption operation requires the applicable Arista license (LIC-MOD-MACSEC or equivalent) – the hardware capability alone does not enable it.
Can I mix this card with other 7500 line cards in one chassis?
Yes. 7500 chassis accept combinations of supported line cards for the chassis generation, so you can mix port speeds as your fabric grows.
Is the refurbished DCS-7500R2M-36CQ-LC tested before shipping?
Yes. BrightStar Systems inspects and tests every unit on original-spec firmware, performs a factory reset and configuration wipe, and backs it with warranty (1 year end-user / 90 days reseller).
BrightStar Systems supplies professionally tested refurbished Arista 7500 Series hardware. Every unit is inspected, tested on original-spec firmware, factory reset, and configuration wiped before shipment, and backed by our standard warranty. Modular systems and line cards of this class are typically project-priced – request a quote for current availability and pricing.
SPECIFICATIONS
Model: DCS-7500R2M-36CQ-LC
Type: Arista 7500R2 Series line card for 7500 modular systems
Ports: 36 x QSFP100 100GbE
Packet buffer: 16 GB
Encryption: MACsec hardware-capable at wire speed on every port; encryption operation requires the applicable Arista license
Typical power: 683 W typical (941 W max)
INCLUDED
Model: DCS-7500R2M-36CQ-LC
Type: Arista 7500R2 Series line card for 7500 modular systems
Ports: 36 x QSFP100 100GbE
Packet buffer: 16 GB
Encryption: MACsec hardware-capable at wire speed on every port; encryption operation requires the applicable Arista license
WARRANTY
1-Year BrightStar warranty for end user customers
90-Day BrightStar Warranty for resellers
SHIPPING
Free FedEx Ground shipping within the United States
FedEx Overnight shipping available as well
FedEx International Shipping available for customers outside of the United States
FAQS
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