Verilink XEL XSP-100 SHARK IAP (9SA-USRS-9.0R1.02) Product Manual - Manual (Page 160)

Chapter 6: Using the Command Line Interface (CLI)
Chapter 6-44 XEL P/N & Release 9SA-USRS-9.0R1.02 SHARK™ IAD User’s Guide
MRU value for the virtual PPP interface is 1500.
async-map set async-map map
Specifies the asynchronous control character map for the PPP link. The default
value for the map argument is 0x00000000
magic-number set magic-number { on | off }
Enables or disables LCP magic number negotiation. By default, magic number
negotiation is turned on.
protocol-
compression
set protocol-compression { on | off }
Specifies whether you want the SHARK™ IAD to compress the PPP Protocol
field when it transmits datagrams over the PPP link. By default, protocol field
compression is turned on.
address-
compression
set address-compression { on | off }
If on is selected, the SHARK™ IAD will compress the HDLC Address and
Control fields when it transmits datagrams over the PPP link. By default, the
address field compression is turned on.
lcp-echo-requests set lcp-echo-requests { on | off }
If on is selected, the SHARK™ IAD will send LCP echo requests. By default,
LCP echoing is turned on. You should turn off LCP echoing if you do not want
the SHARK™ IAD to drop a PPP link to a non-responsive peer.
failures-max set failures-max integer
Specifies the maximum number of Configure-NAK messages the PPP module
can send without having sent a Configure-ACK message. The integer argument
can be any number between 1 and 20. The default value for the maximum
failure count is 10.
configure-max set configure-max integer
Specifies the maximum number of unacknowledged configuration requests that
your SHARK™ IAD will send. The integer argument can be any number
between 1 and 10. The default value for the integer argument is 10.
terminate-max set terminate-max integer
Specifies the maximum number of unacknowledged termination requests that
your SHARK™ IAD will send before terminating the PPP link. The integer
argument can be any number between 1 and 10. The default value for the
integer argument is 2.
restart-timer set restart-timer integer
Specifies the number of seconds the SHARK™ IAD will wait before re-
transmitting a configuration or termination request. The integer argument can
be any number between 1 and 30. The default value for the integer argument is
3 seconds. You can reduce the restart timer value if your link is relatively fast
(28,800 bps or greater). Conversely, you should increase the restart timer value
for slow links.