ADTRAN E1 Manual de usuario descargar pdf (Pagina 8)

Configuring Layer 2 Protocols (Frame Relay, PPP, HDLC) T1/E1 WAN Configuration Guide

The fragmentation and interleave options can be used to enhance multilink operation. Fragmentation is

used to reduce serialization delays during the transmission of large packets. The fragmentation process

evenly divides the data among all the links in the bundle with a minimum packet size of 96 bytes. Use

the ppp multilink fragmentation command (at the Global configuration level) to activate the

fragmentation option for all multilink PPP bundles configured on the system. The interleave process is

used with streaming protocols to reduce delay by giving priority to packets identified as high priority.

Sequential delivery is guaranteed with multilink fragmentation, but is not guaranteed with multilink

interleave operation. Use the ppp multilink interleave command (at the Global configuration level) to

activate the interleave option for all multilink PPP bundles configured on the system.

The following commands specify the configuration parameters required for a standard multilink PPP

interface:

>enable

#config terminal

(config)#interface ppp 1

(config-ppp 1)#ppp multilink

(config-ppp 1)#no shutdown

(config-ppp 1)#exit

Now, cross connect multiple physical interfaces to the same multilink PPP interface:

(config)#cross-connect 1 t1 3/1 1 ppp 1

(config)#cross-connect 2 t1 3/2 2 ppp 1

(config)#cross-connect 3 t1 3/3 3 ppp 1

Configuring HDLC Interfaces

HDLC is a protocol developed by the International Organization for Standardization (ISO) under standards

ISO 3309 and 4335. Originally created for the mainframe environment, HDLC has become popularly used

in many network environments because of its flexibility and ease of configuration. HDLC provides

synchronous data transmission regardless of the physical layer access. Because HDLC is totally unaware

of the physical layer access, it supports both half duplex and full duplex communication lines, can work in

both point-to-point and multi-point network configurations, and can be transmitted over switched or

non-switched channels. The AOS supports HDLC transmission over T1, E1, and serial interfaces.

HDLC configuration in AOS products consists of creating the HDLC interface and assigning an IP

address. There are no protocol-specific configuration parameters for HDLC.

The following commands specify the configuration parameters required for a standard HDLC interface:

>enable

#config terminal

(config)#interface hdlc 1

(config-hdlc 1)#ip address 68.22.15.2 /30

(config-hdlc 1)#no shutdown

(config-hdlc 1)#exit

(config)#

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 21 22

Sin comentarios

ADTRAN E1 Manual de usuario Pagina 8