PPP configuration task list
273
SmartWare Software Configuration Guide
24 • PPP configuration
Creating a PPP profile
A PPP profile allows to adjust additional PPP parameters like the maximum transmit unit (MTU) and maxi-
mum receive unit (MRU). Only the most important parameters are listed here.
The profile default is always present and supplies the parameters if no other profile has been created or no pro-
file can be used with a certain type of PPP connection. Profiles created by the user can only be used with PPP
over Ethernet connections. For all other types of PPP connections the default profile applies.
This procedure describes how to create a PPP profile or to modify the default PPP profile
Mode: Configure
Example:
Create a PPP profile
The procedure below creates a PPP profile, sets some of its parameters, and assigns it to a PPPoE session.
node(cfg)#profile ppp PPPoE
node(pf-ppp)[PPPoE]#mtu min 68 max 1492
node(pf-ppp)[PPPoE]#mru min 68 max 1492
node(pf-ppp)[PPPoE]#van-jacobson compression
Step
Command
Purpose
1
node(cfg) #[no] profile ppp { name |
default }
Creates the new PPP profile
name and enters
the PPP profile configuration. The profile
‘default’ already exists.
2
(optional)
node(pf-ppp)[name]#mtu min
min
max
max
Defines the minimum and maximum size of IP
packets (in Bytes) allowed on the outbound PPP
connection. Outbound packets larger than the
maximum size are fragmented into smaller
ones if allowed.
The default value is 1492 Bytes.
On the IP interface over which the PPP connec-
tion runs, the minimum of the IP interface MTU
and PPP MTU applies.
3
(optional)
node(pf-ppp)[name]#mru min
min
max
max
Defines the minimum and maximum size of IP
packets (in Bytes) allowed on the inbound PPP
connection. The default value is 1492 Bytes.
Inbound packets larger than the maximum size
are fragmented into smaller ones if allowed.
The default value is 1492 Bytes.
4
(optional)
node(pf-ppp)[name]#[no] van-jacobson
{compression|decompression} max-slots
max-slots
Allows PPP to use Van Jacobson header com-
pression for TCP packets. Only the negotiation
between the PPP peers determines whether this
header compression is really used.
max-slots
determines the maximum number of concurrent
TCP sessions for which header compression
shall be done. The default is 31.
