HPE FlexNetwork MSR Series Comware 5 Layer 2 - Wan Access Configuration Guide

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the system removes the CUG facilities only of those incoming calls matching the mapping
specified as preference rule, but let other incoming calls with CUG facilities pass through. The
details are as follows:
{ Incoming suppression policy—The system lets the incoming calls without CUG facilities
pass through, but suppresses the incoming calls with CUG facilities but without access
configuration configured by the CUG mapping rule.
{ Outgoing suppression policy—The system lets the outgoing calls without CUG facilities
pass through, but suppresses the outgoing calls with CUG facilities but without access
configuration configured by the CUG mapping rule.
{ All suppression policy—The system removes CUG facilities (if any) and makes call
processing for all incoming calls. This policy is ineffective on outgoing calls.
{ Preference mapping suppressing policy—The system removes CUG facilities and
makes call processing for the incoming calls with CUG facilities and with preference
mapping rule, but lets the incoming calls without preference mapping rule pass through.
This policy is ineffective on outgoing calls.
You can only configure the CUG function on an X.25 interface operating as DCE, and you must
specify the serial interface as DCE when specifying the X.25 protocol on it.
2. CUG mapping and suppression rule
CUG mapping refers to CUG number conversation from local end (DTE) to network end (X.25)
during CUG call processing. For example, when processing the call from the DTE with CUG 10
to DTE with CUG 20, the system first searches the mapping table for this mapping entry: if the
table has this entry, it forwards the packets, if not, it denies the forwarding.
You can define the following suppression rules in configuring CUG mapping:
{ Outgoing call restriction
{ Incoming call restriction
{ Specifying as the preference rule
Specifying as the preference rule depends on the CUG suppression policy. If the suppression
policy is configured as only suppressing the CUG of preference mapping, the system removes
the CUG facilities in the incoming call packet of this mapping and makes call processing.
You must configure CUG function on X.25 DCE interface, and you must specify it as DCE end
when enabling X.25 encapsulation on serial interface.
Configuration procedure
To configure CUG:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Enable CUG function and
configure the suppression
policy.
x25 cug-service
[
incoming-access
|
outgoing-access | suppress
{
all
|
preferential
} ] *
Disabled by default.
4. Configure a local CUG to
network CUG mapping and
define suppression rule.
x25 local-cug
local-cug-number
network-cug
network-cug-number
[
no-incoming
|
no-outgoing
|
preferential
]*
Not configured by default.
The x25 cug-service and x25 local-cug commands are supported only on the X.25 DCE interface.
Specify the interface as DCE when enabling X.25 encapsulation on the serial interface.

HPE FlexNetwork MSR Series Specifications

General

Brand	HPE
Model	FlexNetwork MSR Series
Category	Network Router
Language	English