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High SVC LCN = [254 / N] + Low SVC LCN - 1
where:
N is the number of LAPB circuits on the slot.
[254 / N] is the integer quotient of 254 divided by N.
Low SVC LCN is the value assigned to the Low SVC LCN parameter.
If you are configuring a combination of X.25 DDN, X.25 PDN or X.2 5 Switch
service in conjunction with X.25 Point-to-Point service, use the following formula
to calculate High SVC LCN:
High SVC LCN = [(254 - V) / N] + Low SVC LCN - 1
where:
V is the number of X.25 Point-to-Point service dedicated virtual circuits and PVCs
on the slot.
N is the number of LAPB B circuits on the slot.
[(254 – V) / N] is the integer quotient of (254 – V) divided by N.
Low SVC LCN is the value assigned to the Low SVC LCN parameter.
Enter the value of High SVC LCN (within the range 0 to 4095) as calculated above,
then press [Return].
Note: Because the LCN range for the physical link determines the number of virtual
connections that can be established, the values assigned to Low SVC LCN and High
SVC LCN must be identical on both sides of the X.25 physical link.
Note: PVC LCN ranges and SVC LCN ranges must not overlap.
Internet Address
Specifies the 32-bit IP address of Upper Circuit Name. Enter this address in dotted-
decimal notation. The DDN algorithm maps the IP address to an X.121 address. For
more information about entering addresses in dotted-decimal notation, refer to
Appendix D, “Network Addresses”.
IP Address
Accepts the IP address of a recipient of IP datagrams transmitted by an X.25 PDN
service. Enter the 32-bit IP address in dotted-decimal notation. For more information
about entering addresses in dotted-decimal notation, refer to Appendix D, “Network
Addresses”.
X.25 Service
Parameters
13
X.25 Service Parameters
Parameters and Options
13-7