Enterasys-networks X-Pedition 2000 Uživatelský manuál stáhnout pdf (Strana 19)

Enterasys X-Pedition 2000 Getting Started Guide 3

Features

that are not shaded. Notice that Layer-2 is divided into an LLC layer and a MAC layer. The XP-

2000 operates at the MAC layer but not the LLC layer.

TCP/UDP Services

The following table lists some well known TCP/UDP services provided by the XP-2000.

Features

This section describes the following XP-2000 features:

• Address-based and flow-based bridging

• Port-based VLANs and protocol-based VLANs

• IP and IPX routing

• Layer-4 (application) switching

• Security

• Quality of Service (QoS)

Layer 7 Application

Layer 6 Presentation

Layer 5 Session

Layer 4 TCP/UDP - application

Layer 3 IP/IPX - routing

Layer 2 LLC

Layer 2 MAC -bridging

Layer 1 Physical Interfaces

Table 2. TCP/UDP services

TCP Port UDP Port Description

23 Telnet

161 SNMP

67 BOOTP/DHCP Relay Agent

520 Routed

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 85 86

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Enterasys-networks X-Pedition 2000 Uživatelský manuál Strana 19