Led Indicators; Packet Forwarding Ability; Broadcast Control; Quality Of Service - Comtrol RocketLinx ES8108 User Manual

Introduction

LED Indicators

There are system diagnostic LEDs and Ethernet Port LEDs located on the front panel of the RocketLinx ES8108/ES8108F.
The LED indicators provide administrators with real-time system status. The following table describes the function of each
LED indicator Refer to the figure in
LED
Green on
PWR1
Off
Green on
PWR2
Off
Red on
Alm
Off
Port 1- 8 Link (Green on)
(RocketLinx
Activity (Green blinks)
ES8108)
Speed (Yellow on/ 100Mbps) A network device is detected and link established at 100Mbps.
Port 1- 6
(RocketLinx
Speed (Yellow off)
ES8108F)
100Mbps Link (Green on)
Fiber port #7, #8
(RocketLinx
100Mbps Activity (Green
ES8108F)
Blinks)

Packet Forwarding Ability

The RocketLinx ES8108/ES8108F features a packet filtering function for broadcast packet control protection and Quality of
Service (QoS). Both features can provide higher performance in a crowded network through traffic filtering and prioritization.
This subsection will introduce the principles of traffic control and forwarding precedence, including Broadcast control and

Quality of Service.

Broadcast Control

The RocketLinx ES8108/ES8108F begins to drop broadcast packets with DA (destination address) equal to
FF:FF:FF:FF:FF:FF if the received broadcast packets are more than the threshold – 198 packets/ per second at 100Mbps or 19
packets / per second at 10Mbps link speed.
All ports are enabled with this function by default to provide better network performance and prevent congestion caused by the
flooding of broadcast packets.
Quality of Service
The RocketLinx ES8108/ES8108F supports the frame type priority function, where high priority packets will be queued to a
high priority queue to share more bandwidth. The ratio of bandwidth of the high priority to the low priority queue is 8:1. After
8 high priority packets are processed, then 1 low priority packet is processed.
Both the RocketLinx ES8108 and RocketLinx ES8108F can examine the specific bits of VLAN Tag and TCP/IP TOS of IPv4
and IPv6.
8 - RocketLinx ES8108/ES8108F User Guide: 2000514 Rev. B
on Page 7 for LED locations.
Front Panel
Status
Power is on.
No power is being supplied.
Power is on.
No power is being supplied.
Port link down or power failure event occurred.
No event.
A network device is detected and linked up.
The port is transmitting or receiving packets from the connected
device.
A network device is detected and link established at 10Mbps.
The port is operating in full-duplex mode.
The port is transmitting or receiving packets from the connected
device.
Description
LED Indicators