What is the switching capacity and port configuration of HPE R6R26A?

The HPE SN4600cM R6R26A offers 12.8 Tbps aggregate bandwidth and 8.4 Bpps forwarding across 64x 100GbE QSFP28 ports. Supports flexible breakouts to 10/25/40GbE, enabling high-density aggregation without oversubscription or head-of-line blocking.

Does the SN4600cM support lossless Ethernet for storage?

Yes, it provides RoCEv2 with PFC, ECN, and adaptive routing for lossless fabrics. 64MB shared buffering and zero packet loss at line-rate make it ideal for NVMe-oF and high-performance storage interconnects in datacenters.

What Layer 3 routing protocols are supported?

Full IPv4/v6 suite including OSPFv2/v3, BGPv4/v6, PIM-SM/SSM, VRF, ECMP, and policy-based routing. 512K shared forwarding entries support ACLs, LPM routes, MAC, and tunnels for large-scale deployments.

What is the latency and buffering architecture?

True cut-through latency of 500ns across all packet sizes and port speeds. On-chip 64MB fully-shared packet buffer prevents congestion in bursty east-west traffic patterns common in server farms.

Is the switch compatible with ONIE and open networking?

Yes, ONIE-enabled with support for ONYX, Cumulus Linux 5.9.2+, and other NOS. Ships with power-to-connector airflow for OEM flexibility in custom deployments.

What redundancy features are included?

Hot-swappable dual 1100W PSUs (1+1), hot-swap fan trays, MLAG, VRRP, and control plane protection (CoPP). Ensures high availability for mission-critical infrastructure.

R6R26A - HPE R6R26A SN4600cM 64x100G 12.8Tbps L3 Switch

Name: HPE R6R26A SN4600cM 64x100G 12.8Tbps L3 Switch
Brand: HPE
SKU: R6R26A

R6R26A - HPE R6R26A SN4600cM 64x100G 12.8Tbps L3 Switch | US IT Hardware

Product overview

The HPE SN4600cM Switch (R6R26A) is a high-density Layer 3 managed switch designed for modern datacenter server and storage networks. Featuring 64x 100 Gigabit QSFP28 ports in a 2U rack-mountable form factor with back-to-front airflow, it provides 12.8 Tbps aggregate bandwidth and 8.4 Bpps forwarding rate with consistent 500ns cut-through latency. Flexible port speeds support 10/25/40/100GbE via breakout cables, enabling efficient scale-out aggregation layers. Key features include on-chip 64MB shared packet buffering, 512K forwarding entries, RoCEv2 for lossless fabrics, VXLAN with 6 bridges/1000 VNIs, EVPN, BGPv4/v6, OSPFv2/v3, VRF, and PTP boundary clock. Dual hot-plug 1100W PSUs ensure 1+1 redundancy. Ideal for high-performance computing, AI/ML clusters, cloud infrastructure, and NVMe-oF storage fabrics requiring zero packet loss and wire-speed performance.

12.8 Tbps aggregate switch bandwidth with full line-rate across all ports.
64x 100GbE QSFP28 ports support 10/25/40/100G breakout flexibility.
500ns low cut-through latency ensures predictable high-performance forwarding.
8.4 Bpps forwarding rate with 64MB on-chip shared packet buffering.
RoCEv2, VXLAN, EVPN enable lossless storage and overlay networking.
Dual hot-plug 1100W PSUs provide 1+1 redundant power protection.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	R6R26A
Brand	HPE
Condition	New
Subtype	100 Gigabit Ethernet
Software	ONYX or ONIE supported
Standards	IEEE 802.1Q/X/W/S/AB/QBB/QAZ/3X/3AD
Device Type	Switch - 64 Ports - L3 - Managed
Layer 2 Features	STP/RSTP/MSTP, LACP, VLAN, LLDP, DCBX
Advanced Features	RoCEv2, VXLAN (1000 VNIs), EVPN, PTP, ONIE
Routing Protocols	BGPv4/v6, OSPFv2/v3, PIM-SM/SSM, VRF, ECMP

Compatible systems

Optimized for HPE ProLiant/Synergy ecosystems; ONIE enables broad NOS and transceiver compatibility.

HPE ProLiant
Model: DL380 Gen10/11
Form factor: 2U Rack
Generation: Gen10/11
Direct 100GbE server uplinks via QSFP28.
HPE Synergy
Model: Any
Form factor: Composable
Virtual Connect integration potential.

Best for

Data Center Spine
High-bandwidth backbone interconnects 100GbE servers with full line-rate forwarding and RoCEv2 lossless support.
Leaf Aggregation
Top-of-rack aggregation for 10/25GbE servers using QSFP28 breakouts, VXLAN overlay for multi-tenancy.
HPC Clusters
Low-latency 500ns switching for compute-intensive workloads with 64MB buffering and ECMP routing.
AI/ML Training
High-throughput fabric for GPU clusters supporting RDMA over Converged Ethernet v2 and adaptive routing.
NVMe-oF Storage
Lossless Ethernet fabric with PFC, ECN for high-IOPS all-flash array interconnects at 100GbE.

Details

Shipping, warranty & returns

Customer reviews

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RAM	8 GB
SSD	32 GB built-in
Packet Buffer	64 MB on-chip shared
Forwarding Table	512K entries (shared)

Latency	500 ns
Forwarding Rate	8.4 Bpps
Jumbo Frame Size	9216 bytes
Switching Capacity	12.8 Tbps aggregate

Ports	64 x 100 Gigabit QSFP28
Management Interface	RJ-45 + Serial RJ-45 + USB 2.0

HPE R6R26A SN4600cM 64x100G 12.8Tbps L3 Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Storage

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions