GB7300 Stackable Gigabit Switching Chip

date：2024-05-27 / popularity： / source：

Overview

The GB7200 is a stackable Gigabit switching chip independently developed and designed by Guoban Semiconductor for enterprise networks, metro Ethernet and SMB scenarios. It features rich functions, high integration and low power consumption. The chip supports 120G I/O bandwidth, integrates a dual-core A53 CPU, and supports interface standards including SGMII, QSGMII, USGMII and XFI.

Features

Supports 12 flexible SerDes interfaces with multi-rate support: 1G/2.5G/5G/10G/10.3125G
Embedded 1GHz dual-core A53 CPU
Supports external CPU management via PCIe interface
Supports rich Layer 2 and Layer 3 functions
Supports multi-chip stacking
Supports IEEE 1588v2
Supports buffer and table entry sharing; MAC address table, routing table and packet buffer can be flexibly allocated based on scenarios
Typical power consumption: 8W (Industrial Grade)
Package: FCBGA, 17 × 17 mm

Chip Characteristics

It integrates a dual-core A53 processor running at 1 GHz. The DDR interface supports up to 2 GB DDR4, and an external PCIe interface is provided.
It provides 12 high-speed SerDes lanes, of which 6 lanes support rate configurations of 1G, 2.5G, 5G and 10Gbps, and can connect to external multi-port PHYs to expand high-density Gigabit or 2.5G ports.

- Total switching capacity: 120 Gbps for packets of 128 bytes or longer.
- Total switching capacity: 100 Gbps for 64-byte packets.

Rich Layer 2 functions including diversified VLAN mechanisms, MAC address management, link aggregation, port mirroring, storm control, etc.
Complete IPv4 and IPv6 routing functions including VRF, ECMP, IP tunnel and URPF.
Supports Layer 2 and Layer 3 multicast.
Supports SRv6 BE mode.
Supports ACL flow classification and QoS based on Layer 2, IPv4/IPv6 Layer 3 and UDF.
Supports stacking of up to 9 devices.
Intelligent packet buffer management optimizes burst traffic handling.
Network ports support 8 queues, and the CPU control port supports 32 queues.
Supports various network security features including port-based and MAC-based 802.1X authentication, DDoS attack detection, etc.
Supports trusted secure boot with a hardware encryption engine, common symmetric and asymmetric encryption/decryption algorithms, and true random number generation.
Supports IEEE 1588v2.
Advanced low-power design: supports power saving by disabling unused SerDes lanes and dynamic power saving based on traffic load.

Typical Applications