Juniper JUNOSE SOFTWARE 11.2.X - LINK LAYER CONFIGURATION GUIDE 7-7-2010 Configuration Manual page 609

ppp fragmentation
ppp hash-link-selection
ppp initiate-ip
Copyright © 2010, Juniper Networks, Inc.
Use the no version to restore the default minimum 16 bytes and default maximum 32
bytes.
See ppp chap-challenge-length.
Use to enable fragmentation on an MLPPP link interface and optionally specify the
maximum fragment size, in octets, to be used on the link.
Example
host1(config-profile)#ppp fragmentation 128
Use the no version to disable fragmentation on the link and restore the default fragment
size, which is the link's MTU.
See ppp fragmentation.
Use to enable use of a hash-based algorithm to select the link on which the router
transmits non-best-effort (high-priority) packets, such as voice or video, on the dynamic
MLPPP interfaces created by this profile.
Hash-based MLPPP link selection is available only for non-best-effort traffic. For
best-effort traffic, the router uses a round-robin algorithm for link selection.
Using hash-based link selection instead of the default round-robin link selection for
non-best-effort traffic ensures that the router maintains the proper packet order when
transmitting high-priority packets.
When you configure hash-based link selection, the router uses the IP source address
and IP destination address of the packet as a hash to select the MLPPP member link
on which to transmit the packet.
Example—The following commands configure hash-based MLPPP link selection for
all dynamic MLPPP interfaces created by the profile named dynamicMlppp.
host1(config)#profile dynamicMlppp
host1(config-profile)#ppp multilink enable
host1(config-profile)#ppp hash-link-selection
Use the no version to restore the default round-robin algorithm for MLPPP link selection.
See ppp hash-link-selection.
Use to initiate IPv4 for passive clients. By default, PPP creates IP instances when it
receives client requests.
Example
host1(config-profile)#ppp initiate-ip
Use the no version to disable initiation of IP.
See ppp initiate-ip.
Chapter 17: Configuring Dynamic Interfaces
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