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10.2.2.2. Configuring a “Direct Link“ Access Point Previous topic Parent topic Child topic Next topic

Figure 180. Configuring a “Direct Link“ access point

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Figure 181. Internal address assignment of a “direct link“ access point

ag00a5ad-2.png
ADD-UCSU:
UNIT=AP,
LTU=17,
 
LTPARTNO=Q2302-X10
SRCGRP=1,
 
FRMTYPE=INCH19,
CONNTYPE=APDL,
 
LSRTADDR=192.168.1.17,
APRTADDR=192.168.1.254,
 
LOCID=1,
LOCATION=“MCH MACHTLFINGERSTR.1 GEB. 7202-111”,
 
PHONE=08972223456,
FAX=08972265432,
 
PLCHECK=YES,
BCHLCNT=20,
 
CONVLAW=NO;
  
ADD-APRT:
TYPE=APNET,
LTU=17,
 
APIPADDR=192.168.200.5,
NETMASK=255.255.255.252;
In the case of a “direct link“ access point, the Ethernet port of the access point is connected directly to the OpenScape 4000 LAN segment and can be reached from CC-A and CC-B without a router.
However, the signaling survivability feature requires the re-routing of a link in the event of a fault (from LAN to modem). In order for this to function, the access point may not be “logically“ present in the OpenScape 4000 LAN segment. In this case, a router is activated within the access point which forwards the packets from the OpenScape 4000 LAN to the “logical“, internal address of the access point.
To this end, the access point contains a “logical“ IP network in which only itself and possibly the TAP/Service PC connection have an address. In order to save addresses, the netmask 255.255.255.252 can be used for this address.
Even these mini-networks and their addresses must be coordinated with the customer’s network administrator and, obviously, may not overlap.
Figure 15 “Configuring a “Direct Link“ access point” shows the following fundamental information required for configuring a direct link access point:
  • The fact that the access point is linked with the OpenScape 4000 LAN segment: Link type APDL, i.e. “direct link“.
  • The LTU number of the access point, i.e. 17.
  • The LTU part number specifies the HG 3575 used.
  • The access point’s shelf type is derived from the type designation.
  • The internal IP address of the access point: 192.168.200.5.
  • The IP address for the TAP/Service PC link at the access point: 192.168.200.6.
  • The IP address of the own Ethernet port via which the AP17 accesses the OpenScape 4000 LAN segment: 192.168.1.17.
  • The netmask in the internal segment of the AP17: 255.255.255.252.
  • The IP address of the router (port) at the OpenScape 4000 LAN segment, via which the AP17 can reach access points which cannot be accessed directly at the OpenScape 4000 LAN segment (that is “networked“ APs), in this case router Ra: 192.168.1.254. This router is omitted if there are no networked APs in the entire configuration or if this is an isolated demo installation. The default router must be configured with the zero address 0.0.0.0.
  • By limiting the number of B-channels, the bandwidth available to AP99 is indirectly reduced in the configuration example. This mechanism works independently of the bandwidth limitation performed by the Resource Manager in the “Large Enterprise Gatekeeper” Feature. For further information, please refer to Chapter 3, “Load Calculation”.
  • Should Payload Quality Handling be activated? For details see Section 2.9, “Payload Survivability”
  • The Source Group Index is explained in detail in Section 2.8, “Source Dependent Routing”.
Additional data is explained in more detail with the corresponding AMO parameters.

Generation

An access point is configured with three AMOs (UCSU, APRT, STMIB) and activated with USSU.

UCSU

With the AMO UCSU, the access point is configured as a new shelf in the system and its reachability via routers is ensured.
assistant-2.gif
Configuration Management > System Data > IPDA > IPDA Access Point
Click New and enter the LTU of the access point.
Enter the relevant data on the General and IP Interface (DL) (Connect Type=APDL) tab and Save.
comwin-2.gif
 
ADD-UCSU:UNIT=AP,LTU=17,LTPARTNO=Q2302-X10,SRCGRP=1,FRM­
TYPE=INCH19,CONNTYPE=APDL,LSRTADDR=192.168.1.17,APRTAD­
DR=192.168.1.254,LOCID=1,LOCATION=“MCH MACHTLFINGERSTR.1 GEB. 7202-
111”,PHONE=08972223456,FAX=08972265432,PLCHECK=YES,BCHLCNT=20,CON­
VLAW=NO;
The parameters FRMTYPE and CONNTYPE cannot be changed after the ADD!
IMPORTANT:
Prior to ADD-UCSU, use ping to check that the IP addresses given to you by the administrator are reachable. APRTADDR must respond. LSRTADDR must not respond, as this would indicate that the corresponding address had already been assigned. LSRTADDR must be set differently for every “direct link“ access point. The AMO does not verify if this rule is observed.

Table 37. APNW: AMO UCSU parameters in ADD branch under ART=AP

AMO
Parameter
Sprache/ Language
Beschreibung/Description
UCSU
LTSACHNR
d
Sachnummer der LTU-Baugruppe, hier die Sachnummer der verwendeten NCUI2+/NCUI4.
 
LTPARTNO
e
Part Number of the LTU Board, here part number of the NCUI2+/NCUI4 used.
 
SRCGRP
d
Source Group Index
Zuordnung des Access Points in eine Source Group für “Source Dependent Routing”. (Wegesuche in Abhängigkeit vom Rufenden) Dieser Parameter ist wichtig für Source Dependent Routing und Payload Survivability und wird dort näher beschrieben.
 
SRCGRP
e
Source Group Index
Assignment of the Access Point to a Source Group for “Source Dependent Routing”.
This parameter is relevant for Source Dependent Routing and Payload Survivability and will be described in more detail there.
 
FRAMETYP
d
Typ des LTU-Rahmens (Shelf Typ)
AP-Typ
FRAMETYP
AP 3300 IP
L80XF
AP 3500 IP
INCH19
AP 3700 IP
AP37009
 
FRMTYPE
e
Type of the LTU Frame (Shelf Type)
AP-Type
FRAMETYPE
AP 3300 IP
L80XF
AP 3500 IP
INCH19
AP 3700 IP
AP37009
 
VERBART
d
Art der Verbindung zwischen Access Point und Zentrale Für IPDA kommen nur die Werte APDL und APNW in Frage.
APDL - Access Point Direct Link: - Access Point ist direkt am OpenScape 4000 LAN Segment angeschlossen, d.h. im selben IP-Netz.
 
CONNTYPE
e
Type of the Connection between Access Point and the Central Switch
Only the values APDL and APNW are possible for IPDA.
APDL - Access Point Direct Link: - Access Point is connected directly to the OpenScape 4000 LAN Segment, i.e. in the same IP network.
 
LSRTADR
d
Adresse des Routers im OpenScape 4000 LAN Segment
VERBART=APDL:
Dies ist die IP-Adresse am Ethernet-Port des Access Points, über den er mit dem OpenScape 4000 LAN Segment verbunden ist. Bei APDL enthält der Access Point einen lokalen Router der die IP-Adresse des Access Points (in einem eigenen Netzwerksegment) mit dem OpenScape 4000 LAN Segment verbindet. D.h. auch hier handelt es sich um die Adresse eines (wenn auch unsichtbaren) Routers.
Diese IP-Adresse muss zum OpenScape 4000 LAN Segment gehören (siehe NETADR im AMO SIPCO).
LSRTADR muss für jede Baugruppe unterschiedlich sein. Der AMO prüft nicht die Einhaltung dieser Regel.
 
LSRTADR
e
Address of the Router in the OpenScape 4000 LAN Segment
CONNTYPE=APDL:
This is the IP address of the Access Point’s ethernet port connected to the OpenScape 4000 LAN Segment. With APDL the AP contains a local router that connects the own IP address of the Access Point (in its own network segment) to the OpenScape 4000 LAN Segment. It’s a router’s address, even with the router invisible.
This IP address must belong to the OpenScape 4000 LAN Segment (see NETADDR in AMO SIPCO)
LSRTADDR must be different for every board. The AMO does not check compliance with this rule.
 
APRTADR
d
Adresse des Routers im Netzwerk des Access Points
IP Adresse des Routers (Ports) im Netz, in dem sich der Access Point befindet, über den der Access Point Adressen außerhalb dieses Netzes erreicht.
VERBART=APDL:
Über diesen Router muss der direkt am OpenScape 4000 LAN Segment angeschlossene Access Point alle Access Points erreichen, die sich in anderen Netzen befinden. Meist ist dies der Default-Router des OpenScape 4000 LAN Segments, welcher mit dem Parameter DEFRT im AMO SIPCO eingerichtet wird*).
Sind in der gesamten Konfiguration keine “networked“ APs enthalten, oder ist dies eine isolierte Demo-Installation, so enfällt dieser Router. Geben Sie dazu hier die Null-Adresse 0.0.0.0 an.
*)Ausnahmen für Sonderrouten sind möglich und werden im Routing Table Zweig des AMO APRT eingerichtet.
 
APRTADDR
e
Address of the Router in the Access Point’s Network
IP address of the router (port) in the network where the Access Point is located, via which the Access Point reaches addresses outside of this network.
CONNTYPE=APDL:
Via this router an Access Point directly connected to the OpenScape 4000 LAN Segment must be able to reach all Access Points that are located in different networks. Usually this is the default router of the OpenScape 4000 LAN Segment, administered in parameter DEFRT with AMO SIPCO*).
If there are no “networked“ APs in the whole configuration or if this is a stand-alone demo installation, this router is not needed. Give the address 0.0.0.0 for this purpose.
*) Exceptions for special routes are possible. They are administered in the routing table branch of AMO APRT.
 
STANDOID
d
Standort Identifikation
Schlüsselzahl zur Identifikation des Standorts eines Access Points, der unterschiedlich zum Standort der Zentralanlage sein kann. Der Parameter wird benötigt, um den vertrieblichen Bestand (PARK-Daten) der Anlagenteile standortabhängig zu pflegen. Der Wert wird vom Konfigurator-Tool vergeben und muss so übernommen werden. Gegebenenfalls ist der Wert vom Systemplaner zu erfragen. Ist kein Tool-generierter Wert verfügbar, z.B. bei Teststellungen, soll der Wert 999 verwendet werden, um dies auszudrücken. Bei Erweiterungen an einem Standort (zusätzlicher Access Point) kann der Wert des bereits existierenden Access Points übernommen werden. Systemkomponenten in einem anderen Raum, Stockwerk, oder Gebäude werden unter einer anderen Standort-Identifikation geführt!
 
LOCID
e
Location Identification
Key number for identification of the location of an Access Point, which can differ from the location of the central switch. This parameter is necessary to maintain the sales database for the parts of the system, based on locations. The value is determined by the Configurator tool and must be taken over unchanged. If necessary, ask the system planner for the value. If no tool-generated value is available, e.g. for test and demo configurations, the value 999 shall be used to express this. For expansions at a certain location (additional Access Point), the value of the already exisiting Access Point can be taken. System components in another room, floor or building are listed under a different location ID.
 
STANDORT
d
Angabe darüber, wo der Access Point zu finden ist.
z.B. Firma, Ort, Straße, Gebäude, Stockwerk, Raumnummer, ...
Maximal 48 Zeichen können eingegeben werden.
 
LOCATION
e
Info, where to find the Access Point
E.g. Company, city, street, building, floor, room number, ...
A maximum of 48 characters is allowed.
 
TEL
d
Telefonnummer am Standort des Access Points
Nächstgelegenes Telefon, über das ein Techniker vor Ort am Access Point erreicht werden kann.
 
PHONE
e
Phone number at the Access Point
The nearest phone, where a service engineer can be reached at the Access Point.
 
FAX
d
Faxnummer am Standort des Access Points
Nächstgelegenes Faxgerät, über das ein Techniker vor Ort am Access Point erreicht werden kann.
 
FAX
e
Fax number at the Access Point
The nearest fax, where a service engineer can be reached at the Access Point.
 
PLCHECK
d
Payload Quality Check
Gibt an, ob für diesen Access Point auf schlechte Payload Qualität reagiert werden soll (durch Sperren der Verkehrsbeziehung bzw. Weg über Payload Survivability) oder nicht.
-> Section 2.9, “Payload Survivability”
 
PLCHECK
e
Payload Quality Check
Defines whether this Access Point shall react on bad Payload Quality (by blocking of the relation or routing via Payload Survivability Path) or not.
-> Section 2.9, “Payload Survivability”
 
ANZBKAN
d
Anzahl B-Kanäle
Gibt an, wieviele B-Kanäle an der Schnittstelle zwischen Access Point und LAN gleichzeitig genutzt werden dürfen. Auf diese Weise lässt sich die maximale Bandbreite, die der Access Point im LAN benötigt, grob begrenzen.
siehe Chapter 3, “Load Calculation”
 
BCHLCNT
e
B Channel Count
Defines how many B channels may be used concurrently at the interface between Access Point and LAN. By this the maximum bandwidth needed by an Access Point can be limited coarsely.
see Chapter 3, “Load Calculation”
 
KONVLAW
d
Konvertierung von A-Law zu µ-Law bzw. µ-Law nach A-Law auf der HG 3575 Baugruppe.
 
CONVLAW
e
Conversion from A-law to µ-law or µ-law to A-law on the HG 3575 board.

APRT

With the AMO APRT, the access point is assigned its own (internal) IP address.
assistant-2.gif
Configuration Management > System Data > IPDA > IPDA Access Point
Click Search and select the access point.
Enter IP addresses on the IP Interface (DL) tab and Save.
comwin-2.gif
 
ADD-APRT:TYPE=APNET,LTU=17,APIPADDR=192.168.200.5, NET­
MASK=255.255.255.252;
IMPORTANT:
If you want to check the (internal) APIPADDR IP address after startup using ping, you must configure the route to the AP internal network segment on the computer from which the ping is dispatched. => Host=APRT:APIPADDR, Netmask=APRT:NETMASK, Router=UCSU:LSRTADDR. APIPADDR must be set differently for every access point. The AMO does not verify if this rule is observed.

Table 38. APDL: AMO APRT parameters in ADD branch under TYPE=APNET

AMO
Parameter
Sprache/ Language
Beschreibung/Description
APRT
APIPADR
d
Eigene IP-Adresse des Access Points
VERBART*)=APDL:
IP-Adresse des Access Points in seinem eigenen Netzwerksegment
- nicht die IP-Adresse the Ethernet-Ports, welche in diesem Fall vom internen Router belegt wird.
APIPADR muss für jede Baugruppe unterschiedlich sein. Der AMO prüft nicht die Einhaltung dieser Regel.
*) AMO UCSU, ART=AP: siehe Parameter VERBART in Table 6 “APNW: AMO UCSU parameters in ADD branch under TYPE=AP”
 
APIPADDR
e
Own IP Address of the Access Point
CONNTYPE*)=APDL:
IP address of the Access Point in its own network segment
- not the IP address of it’s ethernet port which is assigned to the internal router in this case.
APIPADDR must be different for every board. The AMO does not check compliance with this rule.
*) AMO UCSU, UNIT=AP: see parameter CONNTYPE in Table 6 “APNW: AMO UCSU parameters in ADD branch under TYPE=AP”
 
NETMASK
d
Netzmaske des Netzes, dem APIPADR angehört
 
NETMASK
e
Netmask of the network which APIPADDR is part of
With the AMO APRT, additional functions of an access point can be configured.

STMIB

Nothing special has to be configured with STMIB. The CHANGE branches allow a multitude of parameters to be set. Details are described in Section 2.2.3, “Changing Access Point Parameters with the AMO STMIB”.

USSU

In order to actually put the access point into operation after the configuration process, it has to be activated.
assistant-2.gif
Configuration Management > System Data > IPDA > IPDA System Data
Click Search and select the access point.
Click Execute on the Action pull-down menu
and set the mode of action Configure AP, confirm with OK.
comwin-2.gif
 
EXEC-USSU:MODE=CONFAP,LTU=xx;
From this moment on, the OpenScape 4000 CC attempts to reach the access point and, as soon it achieves this, to start it.
IMPORTANT:
Prior to EXEC-USSU:CONFAP, the configuration must be updated on the system hard disk, Otherwise, the data on the system would conflict with the data on the HG 3575 when the system is reloaded and could only be synchro­nized again with EXEC-USSU:UPDATAP,LTU number,UL.
In order to be able to reach the access point from the CC upon initial installation, various data has to be entered locally at the access point (see Section 2.2.5, “Local Configuration of an Access Point”).
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