3Com 3031 Command Reference Manual page 252

3com 3031: reference guide

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seconds: Time interval for the interface to send keepalive packet in second. The

value ranges from 0 to 32767 and defaults to 10.

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.

Set the PPP timer hold to 20 seconds.

[3Com-Serial1/0/0] ppp timer hold 20

ppp timer negotiate

ppp timer negotiate seconds

undo ppp timer negotiate

Interface view

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.

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

By default, the PPP timeout is 3 seconds.

For the related command, see link-protocol ppp.