RAD Data comm 100 Especificações descarregar pdf (Página 58)

Chapter 1 Introduction Installation and Operation Manual

1-26 Functional Description Egate-100 Ver. 4.0

• One of the DS3 Rxs

• Internal clock.

Buffer Management

Egate-100 has a total of 2500 frame buffers. The frames in each buffer are

limited in size by the maximum frame length.

Each bridge port priority queue (at egress) has a configurable threshold. When a

frame enters the bridge, it is assigned for transmission to the appropriate bridge

port based on the functionality of the bridge, and to the appropriate bridge port

priority queue based on the packet’s priority fields.

If the number of packets in the bridge port priority queue exceeds the configured

threshold, the incoming packet is dropped. Otherwise, it is queued for transmission.

A second threshold is used at the level of a group of priority queues. For each

priority level, a threshold can be configured for the group of all priority queues

(of the E1/T1 bridge ports) of that priority level. Before a packet is queued for

transmission, both thresholds (individual and group) are checked.

The buffer-management scheme described allows for over-subscription of buffers

(Number-of-bridge-ports × Packet-threshold > 2500) allowing for a high burst

tolerance at the bridge port level while preventing the high-priority queues from

suffering buffer starvation.

The setting also includes the Gigabit Ethernet buffer threshold. Proper design of

the setting ensures that there is no buffer starvation for the Gigabit Ethernet

interface regardless of E1/T1 buffer state:

E1/T1-threshold + Gigabit Ethernet threshold = 2500.

All thresholds are configurable, and the user may modify settings as well as

specify the desired amount of oversubscription, if any.

Management

Egate-100 can be monitored locally from an ASCII terminal or from a remote site

using Telnet or the ConfiguRAD Web-based application. The RADview Lite

application is also supported.

Inband Management

Egate-100 supports inband management via Telnet, Web, and RADView Lite.

Configuration, monitoring, and statistics are available.

Out-of-Band Management

Egate-100 allows full configuration and diagnostics via ASCII terminal or Fast

Ethernet management port. The ASCII terminal is connected to the control port

on the Egate-100 front panel.

An explanation of ASCII terminal activation is provided in

Chapter 3

including

general instructions for navigating through the system menus and windows and

modifying data.

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 317 318

Comentários a estes Manuais

Sem comentários

RAD Data comm 100 Especificações Página 58

Comentários a estes Manuais

Manuais e produtos relacionados com Redes RAD Data comm 100