R3303-HP HSR6800 Routers Layer 2 - WAN Command Reference

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Views
Virtual template interface view, MP-group interface view
Default command level
2: System level
Parameters
size: Maximum size of an LFI fragment, in bytes, in the range of 40 to 1500.
Examples
# Configure the maximum size of LFI fragments on interface Virtual-Template 1 as 80 bytes.
<Sysname> system-view
[Sysname] interface virtual-template 1
[Sysname-Virtual-Template1] ppp mp lfi size-per-frag 80
ppp compression iphc
Use ppp compression iphc to enable IP header compression (TCP header compression and RTP header
compression mainly) on an interface.
Use undo ppp compression iphc to disable IP header compression.
Syntax
ppp compression iphc [ nonstandard ]
undo ppp compression iphc
Default
TCP header compression and RTP header compression are disabled.
Views
Interface view
Default command level
2: System level
Parameters
nonstandard: Specifies the nonstandard encapsulation format.
Usage guidelines
Enabling or disabling IP header compression enables or disables both RTP header compression and TCP
header compression.
To use IP header compression, you must enable it on both sides of a PPP link.
After you enable IP header compression on VT and Dialer interfaces, ISDN and asynchronous dialer
interfaces, you must shut down and then bring up the interfaces by using the shutdown and undo
shutdown commands for the configuration to take effect.
After you enable IP header compression on a MP bundle, you must shut down and then bring up all the
MP member interfaces by using the shutdown and undo shutdown commands for the configuration to
take effect.