Configuring Ip/Hdlc; Figure 18: Ppp Interface Configuration Parameters; Figure 19: Structure Of Cisco Hdlc Protocol - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SYSTEM BASICS CONFIGURATION GUIDE 2010-10-04 Configuration Manual

Configuring IP/HDLC

Copyright © 2010, Juniper Networks, Inc.

Figure 18: PPP Interface Configuration Parameters

The following sample command sequence configures PPP on a serial interface. See
JunosE Link Layer Configuration Guide, for details.
host1(config)#interface serial 3/0:2/5
host1(config-if)#encapsulation ppp
host1(config-if)#ip address 192.32.22.10 255.255.255.0
The E Series router supports IP over Cisco HDLC on many types of serial interfaces. Cisco
HDLC monitors line status on a serial interface by exchanging keepalive request messages
with peer network devices. It also allows routers to discover IP addresses of neighbors
by exchanging Serial Link Address Resolution Protocol (SLARP) address request and
address response messages with peer network devices.
The E Series router Cisco HDLC is compatible with the Cisco Systems Cisco-HDLC
protocol, the default protocol for all Cisco serial interfaces.
The router supports the following framing features:
HDLC for data-link framing
18,000-byte information field size

Figure 19: Structure of Cisco HDLC Protocol

As shown in Figure 19 on page 21, the Cisco HDLC protocol can exist directly on top of
the HDLC layer or ATM or SONET interface. Both SONET and DSx/Ex interfaces are
supported at the physical layer.
The following example configures HDLC on a serial interface. See JunosE Link Layer
Configuration Guide , for details.
host1(config)#interface serial 3/1:2/1
host1(config-if)#encapsulation hdlc
host1(config-if)#ip address 192.32.10.2 255.255.255.0
Chapter 1: Planning Your Network
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