Description

The KSZ8842-PMQLI is a 2-port switch that belongs to the KSZ8842-series of switches. It includes PCI and non-PCI CPU interfaces. This specific model, the KSZ8842-PMQLI, is packaged in PQFP and is designed for PCI CPU interfaces. For non-PCI interface switches, refer to the KSZ8842-MQL/MBL datasheet.

Specifications and features

- Non-blocking switch fabric with a 1K entry MAC Address look-up engine and store-and-forward architecture for fast packet delivery.

- Fully compliant with IEEE802.3u standards.

- Full-duplex IEEE 802.3x flow control (Pause) with force mode option.

- Half-duplex back pressure flow control.

- IEEE 802.1Q VLAN support for up to 16 groups (full range of VLAN IDs).

- VLAN ID tag/untag options on a per port basis.

- IEEE 802.1p/Q tag insertion or removal on a per-port basis (egress).

- Programmable rate limiting at the ingress and egress port.

- Broadcast storm protection.

- IEEE 802.1d spanning tree protocol support.

- MAC filtering function to filter unicast packets.

- Unknown MAC address forwarding function.

- Direct forwarding mode enabling the identification of the ingress and egress ports by the processor.

- IGMP v1/v2 snooping support for multicast packet filtering.

- IPV6 Multicast Listener Discovery (MLD) snooping support.

- Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port.

- Management information base (MIB) counters for fully compliant statistics gathering: 32 MIB counters per port.

- Loop back modes for remote failure diagnostics.

- Comprehensive register access including PCI configuration, control/status, and switch registers for transceiver control and status.

Application Scenarios

- Video Distribution Systems.

- High-end Cable, Satellite, and IP set-top boxes.

- Video over IP.

- Voice over IP (VoIP) and Analog Telephone Adapters (ATA).

- Industrial Control in Latency Critical Applications.

- Motion Control.

- Industrial Control Sensor Devices (Temperature, Pressure, Levels, and Valves).

- Security and Surveillance Cameras.

Comparison

• Fast packet delivery with non-blocking switch fabric and store-and-forward architecture.
• Compliant with IEEE802.3u standards.
• Supports full-duplex IEEE 802.3x flow control.
• Programmable rate limiting for improved network performance.
• Supports VLAN and IGMP snooping for efficient multicast packet filtering.

• Only supports up to 16 groups for VLAN support.
• Does not support advanced features like IEEE 802.1s Multiple Spanning Tree Protocol.
• Limited register access compared to some other models.