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Sparx-5 Family of L2/L3 Enterprise 25G Ethernet Switches

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Sparx-5 Family of L2/L3 Enterprise 25G Ethernet Switches SparX-5 Family of L2/L3 Enterprise 25G Ethernet Switches Introduction The SparX-5 Enterprise Ethernet switch family provides a rich set of Enterprise switching features such as advanced TCAM-based VLAN and QoS processing enabling delivery of differentiated services, and security through TCAM- based frame processing using versatile content aware processor (VCAP). IPv4/IPv6 Layer 3 (L3) unicast and multicast routing is supported with up to 18K IPv4/9K IPv6 unicast LPM entries and up to 9K IPv4/3K IPv6 (S,G) multicast groups. L3 security features include source guard and reverse path forwarding (uRPF) tasks. Additional L3 features include VRF-Lite and IP tunnels (IP over GRE/IP). The SparX-5 switch family features a highly flexible set of Ethernet ports with support for 25G aggregation links, QSGMII, USGMII, and USXGMII. The device integrates a powerful 1 GHz dual-core ARM® Cortex®-A53 CPU enabling full management of the switch and advanced Enterprise applications. The SparX-5 switch family targets managed Layer 2 and Layer 3 equipment in SMB, SME, and Enterprise where high port count 1G/2.5G/5G/10G switching with 25G aggregation links is required. The SparX-5 switch family consists of following SKUs. VSC7552 SparX-5-128 supports up to 128 Gbps of bandwidth with the following primary port configurations. • 12 × 10G • 6 x 10G + 2 x 25G • 16 × 2.5G + 8 × 10G • 48 × 1G + 8 × 10G VSC7556 SparX-5-160 supports up to 160 Gbps of bandwidth with the following primary port configurations. • 16 × 10G • 10 × 10G + 2 × 25G • 16 × 2.5G + 10 × 10G • 48 × 1G + 10 × 10G VSC7558 SparX-5-200 supports up to 200 Gbps of bandwidth with the following primary port configurations. • 20 × 10G • 8 × 25G In addition, the device supports one 10/100/1000/2500/5000 Mbps SGMII/SerDes node processor interface (NPI) Ethernet port. Features This section lists the key device features and benefits. • Layer 2 and Layer 3 Forwarding – IEEE®802.1Q switch with 4K VLANs and 32K MAC table entries – Push/pop/translate up to three VLAN tags on ingress and egress – RSTP and MSTP support © 2021 Microchip Technology Inc. Datasheet DS00003823C-page 1 and its subsidiaries – Fully nonblocking wire-speed switching performance for all frame sizes – Link aggregation and DRNI per IEEE 802.1AX – External bridge port extender role per IEEE 802.1BR – IPv4/IPv6 unicast and multicast Layer 2 switching with up to 32K groups and 2K port masks – IPv4/IPv6 unicast and multicast Layer 3 forwarding (routing) with reverse path forwarding (RPF) support – IGMPv2, IGMPv3, MLDv1, and MLDv2 support – IPv4 tunnels including GRE, 6to4, 6rd, 6over4, ISATAP, and 6in4 – Energy Efficient Ethernet (EEE) (IEEE 802.3az) • Quality of Service – Four megabytes of integrated shared packet memory – Two megabytes of integrated shared packet memory – Eight QoS classes with a pool of up to 32K queues – TCAM-based classification with pattern matching against Layer 2 through Layer 4 information – Dual-rate policers selected by VCAP IS2, eight dual-rate priority policers per port, and four single-rate port policers for each port – Flexible 4K ingress QoS mappings and 8K egress QoS mappings for VLAN tags and DSCP values – 4K egress VLAN tag operations – Low latency cut-through forwarding mode – Priority-based flow control (PFC) (IEEE 802.1Qbb) • Security – Versatile content aware processor (VCAP™) packet filtering engine using ACLs for ingress and egress packet inspection with four ingress lookups per frame and two egress lookups per egress frame copy – Hierarchical VLAN ACLs and router ACLs – Storm controllers for flooded broadcast, flooded multicast, and flooded unicast traffic – Per-port, per-address registration for copying/redirecting/discarding – 64 single-rate policers for ingress ACLs – 64 single-rate policers for egress ACLs • Management – VCore-IV™ CPU system with integrated dual-core 1 GHz ARM Cortex-A53 CPU with MMU and DDR3/ DDR4 SDRAM controller – Integrated ARM Cortex-M3 CPU core for dedicated PCIe bootup and POE management. – PCIe 1.x/2.0/3.0 CPU interface – CPU frame extraction (eight queues) and injection (two queues) through DMA, which enables efficient data transfer between Ethernet ports and CPU/PCIe – JTAG CPU debug interface – Configurable 32-bit data plus 8-bit ECC-capable DDR3/DDR4 SDRAM interface supporting up to eight gigabytes (GB) of memory – eMMC flash interface – Sixty-four pin-shared general-purpose I/Os: • Serial GPIO and two LED controllers controlling up to 32 ports with four LEDs each • Triple PHY management controller (MIIM) • Dual UART • Dual built-in two wire serial interface multiplexer • External interrupts • SFP loss of signal inputs – External access to registers through PCIe, SPI, MIIM, or through an Ethernet port with inline versatile register access protocol (VRAP) – Per-port counter set with support for the RMON statistics group (RFC 2819) and SNMP interfaces group (RFC 2863) – Support for CPU modes with internal CPU only, external CPU only, or dual CPU © 2021 Microchip Technology Inc. Datasheet DS00003823C-page 2 and its subsidiaries • Applications – Enterprise L2 managed and L2/L3 (L3-Lite) managed – Enterprise edge – WiFi aggregation – High-end SMB/net café – Embedded and control plane switches – Security appliances – Base stations and baseband processor interconnect – Service provider CPEs © 2021 Microchip Technology Inc. Datasheet DS00003823C-page 3 and its subsidiaries Table of Contents Introduction.....................................................................................................................................................1 Features.................................................................................................................................................. 1 1. Port Configurations................................................................................................................................. 7 2. Product Parameters................................................................................................................................ 8 3. Functional Overview..............................................................................................................................10 3.1. Frame Arrival in Ports and Port Modules................................................................................... 12 3.2. Basic Classification.................................................................................................................... 13 3.3. Enterprise Ethernet Flows..........................................................................................................13 3.4. Security and Control Protocol Classification.............................................................................. 14 3.5. Policing.......................................................................................................................................14 3.6. Layer 2 Forwarding.................................................................................................................... 15 3.7. Layer 3 Forwarding.................................................................................................................... 16 3.8. Shared Queue System and Hierarchical Scheduler...................................................................17 3.9. Egress Security Classification....................................................................................................18 3.10. Rewriter and Frame Departure...................................................................................................18 3.11. CPU Port Module....................................................................................................................... 19 3.12. CPU Subsystem.........................................................................................................................19 4. Functional Descriptions.........................................................................................................................20 4.1. Register Notations......................................................................................................................20 4.2. Frame Headers.......................................................................................................................... 21 4.3. Port Numbering and Mappings...................................................................................................33 4.4. SERDES.....................................................................................................................................45 4.5. DEV2G5 Port Module.................................................................................................................47 4.6. DEV5G Port Module...................................................................................................................55 4.7. DEV10G Port Module.................................................................................................................67 4.8. DEV25G Port Module.................................................................................................................79 4.9. Assembler.................................................................................................................................. 94 4.10. Versatile Content-Aware Processor (VCAP™)........................................................................... 98 4.11. Pipeline Points..........................................................................................................................113 4.12. Analyzer....................................................................................................................................117
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