HP MSR Router Series Configuration Guide

Step Command Remarks
12. (Optional.) Restore the default
settings for the AM interface.
default N/A
13. Bring up the AM interface.
undo shutdown By default, an AM interface is up.
Displaying and maintaining AM interfaces
Execute the display command in any view and the reset command in user view.
Task Command
Display AM interface information.
display interface [ analogmodem
[ interface-number ] ] [ brief [ description | down ] ]
Clear statistics for AM interfaces.
reset counters interface [ analogmodem
[ interface-number ] ]
Configuring an ISDN BRI interface
Integrated services digital network (ISDN) provides all-digital terminal-to-terminal services and fulfills the
fully digitized delivery of services integrating voice, data, graphics, and video.
ISDN implements digital transmission on a user loop and provides end-to-end digitization. As a
standardized digital interface, ISDN BRI interface can forward digital and analog information.
The most commonly used ISDN standards include ITU-T I.430, Q.921, and Q.931 recommendations. All
devices that meet ITU-T ISDN standards can access an ISDN network.
ITU-T I.411 standardizes the ISDN user-network interface and provides a reference configuration for ISDN
access. As shown in Figure 2, the reference configuration contains the following elements:
• Function groups—Sets of functions required for accessing an ISDN network.
{ Network terminal 1 (NT1)—Implements the functionality of the first layer in the OSI reference
model, such as subscriber-line transmission, loop test, and D-channel competition.
{ Network terminal 2 (NT2)—Implements the functionality of layers 1 through 3. NT2 is also
known as the intelligent network terminal.
{ Category-1 terminal equipment (TE1)—User equipment compliant with the ISDN interface
provisions. TE1 is also known as the ISDN standard terminal. Digital phone-set is an example
of TE1.
{ Category-2 terminal equipment (TE2)—User equipment incompliant with the ISDN interface
provisions. TE2 is also known as non-ISDN standard terminal equipment.
{ Terminal adapter (TA)—Provides adaptation for TE2 to access a standard ISDN interface.
• Reference points—Points used to differentiate function groups.
{ R—Reference point between a non-ISDN equipment and TA.
{ S—Reference point between a user terminal and NT2.
{ T—Reference point between NT1 and NT2.
{ U—Reference point between NT1 and line terminal.
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HP MSR Router Series Specifications

General

Brand	HP
Model	MSR Router Series
Category	Network Router
Language	English