Example: Configuring Sonet/Sdh Interfaces; Configuring Aggregated Sonet/Sdh Interfaces - Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual

JUNOS 10.1 Network Interfaces Configuration Guide
For more information about logical interface encapsulation, see "Configuring the
Encapsulation on a Logical Interface" on page 171.

Example: Configuring SONET/SDH Interfaces

SONET/SDH interfaces can use either PPP or Cisco HDLC encapsulation. Use PPP if
you are running Cisco IOS Release 12.0 or later. If you need to run Cisco HDLC, the
JUNOS Software automatically configures an ISO family MTU of 4469 in the router.
This is due to an extra byte of padding used by Cisco. The following configuration,
which uses PPP encapsulation, is sufficient to get a SONET/SDH OC3 or OC12 interface
up and running:

Configuring Aggregated SONET/SDH Interfaces

The JUNOS Software enables link aggregation of SONET/SDH interfaces; this is similar
to Ethernet link aggregation, but is not defined in a public standard. The JUNOS
Software balances traffic across the member links within an aggregated SONET/SDH
bundle based on the Layer 3 information carried in the packet. This implementation
uses the same load balancing algorithm used for per-packet load balancing. For
information about per-packet load balancing, see the JUNOS Routing Protocols
Configuration Guide.
You configure an aggregated SONET/SDH virtual link by specifying the link number
as a physical device and then associating a set of physical interfaces that have the
same speed. Channelized OC IQ and IQE PICs do not support SONET aggregation.
By default, no aggregated SONET/SDH interfaces are created. You must define the
number of aggregated SONET/SDH interfaces by including the
at the
The maximum number of aggregated interfaces is 16. The aggregated SONET/SDH
interfaces are numbered from
JUNOS Services Interfaces Configuration Guide.
NOTE: SONET/SDH aggregation is proprietary to the JUNOS Software and might not
work with other software.
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Example: Configuring SONET/SDH Interfaces
[edit interfaces]
so-fpc/pic/port {
encapsulation ppp;
unit 0 {
family inet {
address local-address {
destination remote-address;
}
}
}
}
[edit chassis aggregated-devices sonet]
[edit chassis aggregated-devices sonet]
device-count number;
hierarchy level:
as0 through as15 . For more information, see the
device-count statement