3Com Router 3031, Справочник по командам

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252 C
HAPTER
4: L
INK
L
AYER
P
ROTOCOL
Parameter
seconds: Time interval for the interface to send keepalive packet in second. The
value ranges from 0 to 32767 and defaults to 10.
Description
Using the ppp timer hold command, you can set the timer to send keepalive
packet, while using the undo ppp timer hold command, you can restore the
default value.
For the very slow data links, the seconds parameter must not be set too small.
Because the long datagram can only be transferred totally after a long time, the
transfer of keepalive datagram is delayed. The data link would be regarded to be
broken if the interface has not received the keepalive packet from the other end
for many keepalive periods. So if the keepalive time is set to a very long time, the
datalink would be considered to be broken by the other end, and then be closed.
The keepalive time must be set same at the two end of a ppp link.
For the related command, see display interface.
Example
Set the PPP timer hold to 20 seconds.
[3Com-Serial1/0/0] ppp timer hold 20
ppp timer negotiate
Syntax
ppp timer negotiate seconds
undo ppp timer negotiate
View
Interface view
Parameter
seconds: Time of negotiation timeout in seconds. During the PPP negotiation, if
the local end does not receive the response packet of the peer end, PPP will resend
the last packet. The time ranges from 1 to 10 seconds.
Description
Using the ppp timer negotiate command, you can set the PPP negotiation timeout,
while using the undo ppp timer negotiate command, you can restore the default
value.
By default, the PPP timeout is 3 seconds.
For the related command, see link-protocol ppp.