Configuring Lsq Interfaces As Nxt1 Or Nxe1 Bundles Using Mlppp On Acx Series - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide

Configuring LSQ Interfaces as NxT1 or NxE1 Bundles Using MLPPP on ACX Series

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To configure an NxT1 bundle using MLPPP, you aggregate N different T1 links into a bundle.
The NxT1 bundle is called a logical interface, because it can represent, for example, a
routing adjacency. To aggregate T1 links into a an MLPPP bundle, include the
statement at the
[edit interfaces t1-fpc/pic/port unit logical-unit-number family mlppp]
hierarchy level:
[edit interfaces t1-fpc/pic/port unit logical-unit-number family mlppp]
bundle lsq-fpc/pic/port.logical-unit-number;
NOTE: LSQ interfaces support both T1 and E1 physical interfaces. These
instructions apply to T1 interfaces, but the configuration for E1 interfaces is
similar.
To configure the LSQ interface properties, include the following statements at the
interfaces lsq-fpc/pic/port unit logical-unit-number]
[edit interfaces lsq-fpc/pic/port unit logical-unit-number]
drop-timeout milliseconds;
encapsulation multilink-ppp;
fragment-threshold bytes;
link-layer-overhead percent;
minimum-links number;
mrru bytes;
short-sequence;
family inet {
address address;
}
NOTE: ACX Series routers do not support drop-timeout and
link-layer-overhead properties.
The logical link services IQ interface represents the MLPPP bundle. For the MLPPP bundle,
there are four associated queues on M Series routers and eight associated queues on
M320 and T Series routers. A scheduler removes packets from the queues according to
a scheduling policy. Typically, you designate one queue to have strict priority, and the
remaining queues are serviced in proportion to weights you configure.
For MLPPP, assign a single scheduler map to the link services IQ interface (
each constituent link. The default schedulers for M Series and T Series routers, which
assign 95, 0, 0, and 5 percent bandwidth for the transmission rate and buffer size of
queues 0, 1, 2, and 3, are not adequate when you configure LFI or multiclass traffic.
Therefore, for MLPPP, you should configure a single scheduler with nonzero percent
transmission rates and buffer sizes for queues 0 through 3, and assign this scheduler to
the link services IQ interface (
Configuring an LSQ Interface as an NxT1 Bundle Using MLPPP" on page
hierarchy level:
) and to each constituent link, as shown in
lsq
Copyright © 2017, Juniper Networks, Inc.
bundle
[edit
) and to
lsq
"Example:
523.