WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Deploying Mobile Wireless
Applications and Services
Session WMT-240
WMT-240
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3
Mobile Wireless Network
Solution (MNET)
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Agenda
• MNET Overview
• Needs Assessment
• Architecture
• Installation and Configuration
• Operations and Maintenance
• Billing
• Project Management
WMT-240
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5
Networkers Wireless Presentations
• WMT-101 Introduction to Wireless
Technology
• WMT-241 Deploying Packet Data
Services in Mobile Wireless Networks
WMT-240
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Prerequisites
• Most applicable to operator, partner
• Basic understanding of SS7 concepts
• Basic understanding of GSM concepts
• Covers deployment of MNET specific
components only
WMT-240
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Acronyms
MNET
GSM
AVVID
VPN
BTS
BSC
VLR
MSC
HLR
MAP
SS7
PSTN
TRAU
Mobile Office Network
Global Systems for Mobile
Communications
Architecture for Voice, Video and
Integrated Data
Virtual Private Network
Base Transceiver Station
Base Station Controller
Visiting Location Register
Mobile Switching Center
Home Location Register
Mobile Application Part
Signaling System #7
Public Switched Telephone
Network
Trans -coder Adapter Unit
GMC
ITP
GP
PBX
PLMN
OAM
SMS
BH
DMZ
VLAN
IVR
CDR
PM
APM
WMT-240
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GSM Mobility Controller
IP Transfer Point
GSM Port
Private Branch Exchange
Public Land Mobile Network
Operations, Administration and
Management
Short Message Service
Busy Hour
De-Militarized Zone
Virtual Local Area Network
Interactive Voice Response
Call Detail Record
Performance Measurement
Activity and Performance
Measurement
8
4
MNET Overview: What Is MNET?
• Cisco Wireless Office Solution based on GSM
and VoIP technology
GSM RF interface to enterprise IP networks
Leverages Cisco IP infrastructure and AVVID
• Corporate users can move between private
and public networks with uninterrupted
service (off-premises roaming)
Using any standard GSM handset, mobile users can
access corporate voice and data services from virtually
anywhere
WMT-240
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Legal Aspects
• Mobile network uses public licensed
frequencies
• The owners of those frequencies are
mobile operators
Mobile network providers are mobile operators
Users are corporate enterprises
The frequencies can not be privatized
WMT-240
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MNET Solution—Enterprise View
Non-existent Local Costs
Reduced Long-distance Costs
MNET: VoIP (H.323)
Within Campus
LAN
IP Intranet
(VPN)
Public
Network
Branch Office
Private
Roaming
Public
Roaming
Corporate Campus
WMT-240
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MNET Solution—Carrier’s View
Public
(metered Calls)
Private
(unmetered calls)
• Mobility with GSM phones—Value-added
efficiencies when enterprise cellular call
setup “roams” on-net or off-net
Extends the Service Provider’s Reach Into the Enterprise
Voice Network (Coverage and Customer Satisfaction)
Reduces Churn by Signing Long Term Contract With
Enterprise—High Revenue Generator
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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MNET Components
Core Solution Components
GP10
Mini-GSM system with BTS, BSC, VLR, MSC, H.323 endpoint
Dimensioning: 1 per 90 subscribers
GMC
NT or VxWorks Workstation–HLR, VLR, MSC, H.323 Gatekeeper
Dimensioning: 1 per Enterprise
MAP/SS7 roaming server
Dimensioning: 1 per Operator
IPT43
VoIP gateway that connects MNET domains to the PSTN
and provides the GSM TRAU function
H.323
Gateway
H.323 support on 2600, 3600, 7200, 7500, AS5300
WMT-240
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MNET Logical Architecture
Signalling
Gateway
(ITP 43)
PSTN
PLMN
Router
MSC/HLR
Voice
Gateway
(AS 5300)
WAN
IP Phone
Softphone
Site A
Site B
IP Phone
Gateway
Gateway
WAN
LAN
LAN
GP10
GP10
GP10
Mobility
Controller
(GMC)
PBX
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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PBX
Mobility
Controller
(GMC)
GP10
14
7
MNET Connectivity
Cisco
H.323
Gateway
GP10
E1
PSTN
Gateway
Integrated
GSM & H.323
1
0
0
GMC
H.323 Gatekeeper
B
a
s
e
T
L
A
N
Legacy
PBX
E1
E1
PLMN
E1- MAP/SS7
OAM
Enterprise
OAM Browser
ITP43 Gateway
MAP/IP
GP10
OAM
Telco Multi-Corp
OAM Browser
Internet
Integrated
GSM & H.323
Firewall
WMT-240
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15
Needs Assessment
• Coverage requirements
• RF Service level required by operator
• Number of floors, floor map, etc
in presentation
WMT-240
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GP10’s Antenna Coverage
90
120
158m
+10 dBi
199m
229m
60
100m
0 dBi
150
237m
78m
30
– 10
–20
180
250m
0
200m
210
330
240
300
200m
270
•
•
•
•
Azimuth and elevation exhibit
similar patterns
Forward gain 6 dBi
3-dB beamwidth is 90°
Gain beamwidth is 120°
•
One GP10 covers
~ 200m x 200m area
~ 40,000 square meters
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
17
What about Major Obstacles?
Object
Concrete walls: 10-cm, 25-cm, double 20-cm
25-cm concrete wall with large windows vs. incident angle
Brick wall with small windows
Light indoor wall
Loss (dB)
6, 13, 17
4–11
4
2
Glass walls: standard, reinforced
2, 8
1-cm steel wall with large reinforced windows
10
5-m storage rack packed with paper products, metal parts
Floors: total of 1, 2, 3, 4 floors in signal path
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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18, 35, 44, 51
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9
RF Planning: Example
Map the environment and the distribution of users
Users per floor:
50
Stairway
Elevators
50
80
Partitions
80
80
130
Light walls
50
100 meters
60 meters
50
• Planning the network: Sample environment map
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
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Estimate the Number
and Locations of GP10s
GP10 location
Alternate
location
• Expected path loss:
–81 dB for distance
37.5+ 30log(Distance)
–10 dB for walls
–12 dB antenna
Total loss = 103 dB
Allows 22 dB margin
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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• Expected path loss:
–98 dB for distance
–2 dB for walls
+5 dB antenna
Total loss= 95 dB
Allows 30 dB margin
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10
Needs Assessment (Cont.)
• Traffic requirements
• Number of users
• Voice traffic per user (milliErlangs at BH)
• SMS traffic per user (SMS/sec at BH)
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
21
GSM Port Voice Parameters
• GSM port (GP10) provides
15 voice channels (Erlang B Tables)
8.108 Erlangs at 1% blocking
9.010 Erlangs at 2% blocking
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Subscriber Profiles
• A corporate wireless office user requires
~100 mE
8.1E/100mE ~ 81 users at 1% blocking
9E/90mE
~ 90 users at 2% blocking
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
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Example GSM Port Requirement Results
• Capacity requirements
One GP10 (one of the floors may require
two GP10s)
• Coverage requirements
Requires one GP10
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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12
Will GSM Port Service Two Floors?
Answer: Not in
This Building
• Expected path loss:
–103 dB from first floor
–1 dB extra distance
–18 dB floor
Total = 121 dB …too high,
may not cover here!
• Expected path loss:
–95 dB from first floor
–1 dB extra distance
–0 dB antenna angle
–18 dB floor
Total = 114 dB
…not enough margin!
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
25
Needs Assessment (Cont.)
• Service requirements
• Features
• Incoming/outgoing call routing
• Numbering plan
• User classes
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Architecture
WMT-240
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High Level Architecture
PSTN
SS7
PLMN
PLMN
Mobile
Mobile
Network
Network
Corporate Network
Mobile
PLMN
Network
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Mobile
Network
PLMN
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14
Main Campus Topology
Building
A
Building
C
PSTN
Mobile Network
Mobile Network
Corporate
Network
Mobile Network
Voice
Gateway
DMZ
Enterprise
Router
GMC
MSC
HLR
VLR
Operator’s
Router
ITP 40
PLMN
Building
B
Cellular Operators
Enterprise Campus
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
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Remote Office Topology
Voice
Gateway
PSTN
Mobile
Network
Remote Office
Network
DMZ
GMC
Remote
Office
Enterprise
Router
MSC
HLR
VLR
Operator’s
Router
ITP 40
Corporate
Network
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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PLMN
Cellular Operators
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15
Network Configuration
(In PBX Environment)
PBX
Desk Phone
Voice Gateway
GP10
PSTN
Mobile Network Domain
IP
Domain
GMC
DMZ
ITP 40
Enterprise
Router
Firewall
GP10
Corporate LAN
(VLAN A)
Operator’s
Router
NM WS
MSC
HLR
VLR
PLMN
Cellular Operators
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
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Security
• Both GMC and Voice Gateway placed
in DMZ
• Control enforced in DMZ
• Very strict access control from DMZ to
corporate network
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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TCP Ports Used
GMC – GP10
TCP 2121
GW – GP10 – GMC
TCP 1720
NMS – GP10/GMC
TCP 80
GMC Java
TCP 11786
RTP traffic
UDP 16232+
SNMP traffic
UDP 161, 162
GP10 telnet log
TCP 11784
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
33
Installation
WMT-240
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Configuring GSM Port
• Web interface
• System information
• GSM parameters
• Voice over IP parameters
• Setting system features
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
35
Be Careful?
• ViperCell.Cfg—Does it have the correct IP
address?
• Did you back up your old MIB and your old
“sysUser” file? (If you are upgrading)
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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18
GSM Port GUI Login
sed
is u P10
ser the G
w
ro s
A b cces
to a
y
db
ure ord
sec assw
s
i
P
s
ces and
Ac in ID
g
o
L
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
37
GSM Port Manager Table of Contents
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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GP10 Configuration—System Information
• GSM port IP address
and default gateway
(Requires reboot)
• Logging time
• Asset/contact
information
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
39
GP10 Configuration—GSM Parameters
• Cell characteristics
• Layer 2 and layer 3 air interface timers
• Adjacent cells
• Power control parameters
• Handover control parameters
Note: The GSM parameters are complex and require specialized knowledge in
order to configure them correctly
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Configuring H.323 Voice Gateway
interface Loopback0
ip address 1.1.1.1 255.255.255.0
voip-gateway voip bind srcaddr 1.1.1.1
dial-peer voice 101 voip
destination-pattern 1111
session target ipv4:10.1.1.101
voice class h323 1
voice class h323 1
h225 timeout tcp establish 3
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
41
H323 GW Be Careful!
• Do you have working PRI connected to
your E1/T1 port (make sure it is up on the
PBX side)
• Do you have “isdn network” configured on
your “interface” configuration? (At the
time of this writing, this is a hidden
command)
• Did you back up your old running_config?
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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BTS Basic Package
• Administrative state
• Base station
identity code
• Cell global identity
• Cell reselect
hysteresis
• PLMN permitted NCCs
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
43
Configuring Voice over IP Parameters
• Control connection
between GMC and
GSM port
• GMC listens for
GP10 traffic on
port 1719
• GMC IP address
• Changes require
reboot
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Setting System Features
• Authentication
options
• Authentication
frequency
• SMS cell broadcast
enabled/disable
• Overloaded cell
Barring
enable/disable
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
45
Configuring GMC
• Web interface
• Alias and translation table list
• Gateway table
• Class table and class
• Originating class table
• Translation and gateway mobiles tables
• Alias-mobile aliases
• Subscriber manager
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Be Careful!
• Be very careful when copying DLL’s—
backup your old DLL’s
• Configuration files: V7M.Ini, jcvbase.Dat,
vnxlndb.Dat, cbcdata.Dat, cbcindex.Txt—
MAKE BACKUPS of these if you are
upgrading
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
47
GMC Configuration—System Information
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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GMC Configuration—General
Configuration Settings
• Port and
timer
settings
should
rarely be
changed
• RAS port
is not
currently
used
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
49
GMC Configuration—ITP
For non-redundant mode,
with a single network
card, fill only “IP Address
1” & “Port 1”
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Alias and Translation Tables
• The alias and translation tables map the
called party number with a destination
route
• In each originator class, we define
translation tables that point to the allowed
destination
• The alias/translation table can also modify
the called party number
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
51
Alias Table
WMT-240
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Alias Table List
WMT-240
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53
Translation Table
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Translation Table List
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
55
Gateway Table
WMT-240
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Class Table
WMT-240
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57
Origination Table
• The ‘Originator class table’ will map the calling
party number with a class
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Subscriber Manager
• Subscriber
management
• Windows NT
“Visual C++”
application
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
59
Subscriber Types
• Home mobile subscribers
• Known visitors
• Public visitors
• Unknown
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Home Mobiles
• HLR in GSM
• Typically
used for
testing
purposes
only
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
61
Visitor Mobiles
• Registered Visitors
Table (VLR)
• “Delete” is needed
for stuck entries
• Profile cannot be
changed for
visitors (read only
access)
• Maximum visitors
allowed 1000
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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ITP43: The Gateway
Between MNET and PLMN
Sun Netra 1125t
Units—2 systems
MNET
PLMN
• Operating system
Solaris 2.7 for SPARC
• SS7 stack and drivers
Natural Microsystems version 3.5
• IntelliNet SS7 protocol stack
Handles upper layer protocols
• ITP43 application module
Logic for message routing between IP and SS7
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
63
ITP43 Connections
•hme0
• Cables:
•IBC
•E1/T1
•znb0, znb1
hme0 motherboard to IP network connection
IBC Ethernet port for inter-connectivity
znb0, znb1 Ethernet cables to GMC IP connection
E1/T1 Serial Ports and SS7 / IP Ports
Power Cables
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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ITP Configuration
• No graphical interface
• Telnet or physical serial interface (default
username/password root/cisco)
• Configure IP via “ifconfig”
• Configure SS7 4/16 T1/E1 interfaces
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
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Be Careful!
• Did you back up your old mtp3cp1.Cfg,
nmsinst3.Ini and V7M.Ini?
• Do you have a correctly configured INET
and/or a T1/E1 link to a test MSC/STP?
• Have you set your env variables correctly?
(Type env to check and edit .Profile to
change)
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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ITP Configuration Process
• Modify IPT configuration files
• Configure and align SS7 links
• Start up and test application
Note: ITP SS7 Is Delivered Fully Configured
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
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Network Configuration
PBX
Desk Phone
Voice Gateway
GP10
PSTN
Mobile Network Domain
IP
Domain
GMC
DMZ
ITP 40
Enterprise
Router
Firewall
GP10
Corporate LAN
(VLAN A)
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Operator’s
Router
NM WS
MSC
HLR
VLR
PLMN
Cellular Operators
68
34
Operation and Maintenance
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
69
Managing the GMC Data Files
• There are several types of data files used
by the GMC:
GMC database
Cell broadcast index and data files
IVR initialization file
The CDR server record files
The alarm log and performance
measurement files
WMT-240
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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The Alarm Log and
Performance Measurement Files
• Alarms
GP10 generates both HW and SW alarms
Alarms are collected and stored by the GMC
alarm server in the GMC’s local file system
Alarm information can be viewed by GP10
manager and GMC manager
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
71
The Alarm Log and
Performance Measurement Files
• The Performance Measurement Files
GP10 generates all the relevant GSM PM
counts pertaining to BTS, BSC, and MSC
All PM records are collected by APM server in
GMC and stored in the local file system in
ASCII format
The PM counters for the last completed
measurement period (fixed 15 minutes) can be
viewed by GP10 manager
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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GP10 List
• Cell Id here is
actually the
LAC filled in
the GP10
• Click the IP
address of the
GP10 to which
you want to
connect
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Maintaining the GP10 Configuration
User Management
MIB Management
Performance Measurement Data
Alarms
Maintenance Commands
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Maintaining GP10 Users
Provide a user ID and a password
You must have at least one administrative
user. You can have up to 100 users (in any
combination of administrative and normal
users).
If you logged in with administrative
authority, you can add and delete other
users and change their passwords.
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Monitoring GP10 Alarms
• Server is offline => Alarm
Server down?
• When you view
the alarms
through the
GMC manager,
you see a
summary of the
errors
encountered
on all GP10s
registered with
the system
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Alarm Management—
Alarm Detail Window
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
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Monitoring the GP10 MIB Variables
• Dual TRX card page
Use the dual TRX card page to view the characteristics
of the card
• Clock card page
Use the clock card page to view the characteristics
of the card
• Power card page
Use the power card page to view the power
characteristics of the card
• CDC board page
Use the CDC board page to view the characteristics of
the board
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Billing
WMT-240
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Call Detail Record (CDR)
• CDRs are generated in GP10 and in GMC,
but stored in GMC only
• CDR is generated in proprietary ASCII format
• CDR information is designed based on GSM
TS 12.05 with modification to suit MNET’s
unique architecture
• Support MS origination, MS termination,
handover, supplementary service, SMS-PP,
and emergency call events only; No
HLR/VLR events
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Project Management
WMT-240
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Contact List
• Customer IT, PBX
• Microcell PM, RF, ITP, SS7
• Cisco/partner system integration
• Cisco business unit
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Phased Approach Plan
• Phase 1: Standalone
• Phase 2: PBX/voice mail integration
• Phase 3: ITP/roaming
• Phase 4: Subscriber provision
WMT-240
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More Information
• http://www.cisco.com/univercd/cc/td/doc/product/voi
ce/gsm_ip/viper1_0/index.htm
• http://www.cisco.com/univercd/cc/td/doc/product/voi
ce/gsm_ip/viper1_0/mnet15/index.htm
• http://www.cisco.com/warp/partner/synchronicd/cc/s
erv/mkt/sup/sp/wless/mnets_ai.htm
• http://www.cisco.com/univercd/cc/td/doc/product/voi
ce/gsm_ip/viper1_0/mnet15/mc21inst/viwrnb.htm
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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Deploying Mobile Wireless
Applications and Services
Session WMT-240
WMT-240
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Please Complete Your
Evaluation Form
Session WMT-240
WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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WMT-240
3146_05_2001_c1_X © 2001, Cisco Systems, Inc. All rights reserved.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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