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Description Use the x25 map command to set the address mapping between IP address and
X.121 address.
Use the
undo x25 map command to delete a mapping.
By default, no address mapping is configured.
Since X.25 protocol can multiplex multiple logical virtual circuits on a physical
interface, you need to manually specify the mapping relation between all network
addresses and X.121 addresses.
Once you have specified an address mapping, its contents (including protocol
address, X.121 address and all options) cannot be changed. To make
Table 66 Description on the attributes or user facilities of X.25 address mapping
Option Description
broadcast Sends broadcasts of network protocol and multicasts of IP to
the destination. This option provides support for some routing
protocols (such as Routing Information Protocol).
closed-user-group group
number
Specifies a closed user group (CUG) number for the X.25
interface, in the range 0 to 9999.
compress Compresses X.25 payloads.
encapsulation-type Encapsulation type, with nonstandard, ietf, multi-protocol
and snap available.
idle-timer minutes Maximum idle time for the VC associated with the address
mapping. 0 means that the idle time is infinite.
no-callin Disables accepting calls to the address mapping.
no-callout Disables calls originating from the address mapping.
packet-size input-size
output-size
Carries out maximum packet size negotiation when initiating
calls from the mapping. It needs two parameters: maximum
input packet size and maximum output packet size, which must
range from 16 to 4096 bytes, and must be the integer power of
2.
reverse-charge-accept If a call initiated by the address mapping carries reverse
charging request, to accept the call, this option must be
configured in the address mapping.
reverse-charge-request Specifies calls from the address mapping to carry reverse
charging requests
roa-list roa-name Specifies an ROA list name for the X.25 interface. The roa name
is a string of 1 to 19 characters.
send-delay delay-time Carries out the maximum network transmission delay
negotiation when initiating calls from the mapping. The delay
time is in the range 0 to 65534 ms.
threshold input-value
output-value
Specifies threshold values when initiating throughput
negotiation with the peer from the mapping. The values of
input/output can only be 75, 150, 300, 600, 1200, 2400, 4800,
9600, 19200, or 48000.
vc-per-map count Maximum number of VCs associated with the address
mapping, in the range 1 to 8.
window-size
input-window-size
output-window-size
Carries out the window size negotiation with the peer when
initiating calls from the address mapping, including input
window size and output window size. When the modulo is 8,
the size is in the range 1 to 7; when the modulo is 128, it is in
the range 1 to 127.