NSN GLN0 Interrogating IP

Soc Classification level RN2812CEN13GLN01 © Nokia Siemens Networks

Interrogating IP

S13


Module Objectives

After completing the module, the student will be able to:

• Describe IP Protocol Basics: address, netmask, private network, routing.

• Describe the use of IP in BSC (physical interfaces and logical interfaces)

• Interrogate the IP setting for O&M and for Gb over IP– ZQRI

– ZQRS

– ZQRX (ok and fail)

– ZQKB

– ZFXL

– ZFXI

– ZIAI (for FTP)


ISO OSI model

application

host A

transmission medium

Communication

hardware/software

application

host B

Communication

hardware/software

OSI Stack

1 Physical Layer

2 Data Link Layer

3 Network Layer

4 Transport Layer

5 Session Layer

6 Presentation Layer

7 Application Layer

application

host A

transmission medium

Communication

hardware/software

Communication

hardware/software

application

host B

Communication

hardware/software

Communication

hardware/software

OSI Stack

1 Physical Layer

2 Data Link Layer

3 Network Layer

4 Transport Layer

5 Session Layer

6 Presentation Layer

7 Application Layer

Physical layer : Access to physical medium. E.g. PCM or UTP cable.

Data link layer: Error free exchange switching Performed at this layer based on MAC address. E.g. Ethernet 802.3

Network Layer: routing performed using routing protocols like ospf or static routes. Routing done for IP protocol packets that is used to address subnetworks and hosts. IP is a Network Layer

Transport Layer: distinguishing between different types of exchange between hosts ( telnet, ftp http) TCP, UDP, SCTP are Transport Layers


IP address and subnetmask

IPV4 : IP address is build of 4 parts divided by “.” everyone of them is 1 byte. The decimal system is used to designate the address

IP Address is divided into two parts: subnetwork and host address.

This division can be in any part of the address depending of the user needs.

/24 in the address means that the subnet is made of 24 bits, while the host part is 8 bits

192.168.50.5/24

11000000.10100010.0011010.00000101

Subnetwork

address

Host

AddressNet

mask

11111111.11111111.1111111.00000000

255.255.255.0


IP Address types

Private Addresses (for internal use, they cannot be used in the Internet)

• 10.0.0.0 to 10.255.255.255

• 172.16.0.0 to 172.31.255.255

• 192.168.0.0 to 192.168.255.255

Local address is :

• 127.0.0.1

• It is the local IP address of the computer itself - this address cannot be assigned in the network

Multicast addresses (for a group of hosts such as for media streaming):

• 224.0.0.0 to 247.255.255.255

Broadcast address (to reach every host in the subnet):

• 255.255.255.255

Reserved addresses:

• 248.0.0.0 to 255.255.255.254

All other addresses are public and can be used and routed in the Internet. They are assigned by regulators.


Routing

Routers are network devices that connect subnets on its different interfaces.

Routing is done using a routing protocol like OSPF, RIP or by configuring a static route (default gateway)

For host1 the default gateway is the interface of the router with IP address 172.16.25.1

Routers are exchanging information about the subnetworks connected to each one of them.

Host4

Host3

Host2

Host1192.168.5

0.5

192.168.50.6

172.16.25.4

10.66.82.31

172.16.25.1

10.66.82.1

Subnet 1

Subnet 2

Subnet 3


Transport

Host2

Host1

Once the route from source to destination is granted by the routers, software in each host can create virtual connections to enable different kind of information exchange.

Virtual connections are identified by Transport Protocol and Port Number

TCP (Transport Control Protocol) .Enable reliable information exchange (retransmission)

UDP (Unit Data Protocol). Enable real time exchange (no delay)

SCTP (Signaling Connection Transport Protocol). Enable reliable exchange of SS7 signaling

on IP link.

Port number under 1024 are already assigned for different protocol going upper TCP and

UDP.


IP interfaces in BSC

2 Switching unit present in the BSC.

Three ethernet switches ESB are included

in every switching unit:

One ESB for connecting the CPU-s of the

functional units to different interfaces

like CBC,BBI and other interfaces.

two ESB for connecting the PCU

to the SGSN (GB over IP) and the DNS.


BSC IP interface types

BSC units can manage different types of IP interfaces

LOOPBACK:

Interface loopback is used for sending messages from the unit to itself to test it. This kind of interface is used in troubleshooting.

Physical Address:

Given to the OMU this address is assigned to the unit permanently.

OMU has no redundancy.

Logical Address:

Given to redundant units, this address follow the active unit. When unit state is changed to spare the address will to the working unit.


Address Allocation in BSC

Every unit is connected to

two switching units for

redundancy.

OMU has two physical

addresses EL0 and EL1.

MCMU and BCSU everyone

has two logical addresses

EL0 and EL1.

PCU has Two addresses

IFETH0 and IFETH1.

E S B

E S B

E S B

O

M

U

M

C

M

UE S B

E S B

E S B

BCSU

P

C

U


GB over IP structure

PCU is connected to

the PAPU in SGSN.

IP addresses of PAPU

And PCU can be in

different subnetwork.

router is used to

enable the exchange

of in information between PCU and PAPU.

Port numbers should be higher then 1024. Lower ports are already assigned.

NSEI

UDP port 30001

PAPU BCSU PCU

IP 192.168.4.5

SGSN BSC

NSEI

UDP port 50001

IP 172.16.3.7

router

Default gateway= Router IP Adresse


GB over IP interrogation In S11.5 Gb over IP interrogation is performed with the same command as frame relay (ZFWO)

In S13 there are three separate commands, one for frame relay and two for IP

ZFXI:

• Shows the structure of PSEIs, NSEIs, NSVLIs configured in the BSC

• Given one NSEI, shows details of the NSVLI such as the PAPU address and ports used

• PSEI (Packet Service Entity Id) is the identification of the GPRS core network

• NSEI (Network SEI)is the address or the identifier of the PCU

• NSVLI (Network Service Virtual Link Id) is the identifier of a virtual connection.

ZFXL:

• Shows the available PSEIs

• Given one PSEI shows PCUs, BTSs and DAPs using this PSE.


ZQRI Output< ZQRI;

LOADING PROGRAM VERSION 12.12-0

BSC3i BSC31-LAB 2007-01-25 12:46:07

INTERROGATING NETWORK INTERFACE DATA

ADDR ADM MTU PRIO-UNIT NAME IP ADDRESS TYPE NML ASSIGNED STATE RISED------------------ -------- --------------- ---- --- -------- ----- ----- -----OMU EL0 10.2.99.82 L 24 YES UP 1500 NO EL1 10.2.99.82 L 24 NO UP 1500 NO MCMU-0 EL0 10.1.1.1 L I 24 YES UP 1500 NO EL1 10.1.1.1 L I 24 NO UP 1500 NO EMB0 10.1.2.1 L I 27 YES UP 1500 NO EMB1 10.1.3.1 L I 27 YES UP 1500 NO MCMU-1 EL0 10.1.1.1 L I 24 NO UP 1500 NO EL1 10.1.1.1 L I 24 NO UP 1500 NO EMB0 10.1.2.1 L I 27 NO UP 1500 NO EMB1 10.1.3.1 L I 27 NO UP 1500 NO BCSU-0 -PCU2D- 3 IFETH0 10.2.77.40 L 24 YES UP 1500 NO -PCU2D- 3 IFETH1 UP 1500 NO BCSU-1 EL0 10.6.6.6 L 24 YES UP 1500 NO -PCU2D- 3 IFETH0 10.2.77.41 L 24 YES UP 1500 NO

COMMAND EXECUTED

Netmask length


ZQRS Output

QRS:OMU:;

BSC3i BSC31-LAB 2007-01-25 13:00:39

UNIT: OMU

Active Internet connections (including servers)Proto Recv-Q Send-Q Local Address Foreign Address Statetcp 0 2 10.2.99.82.telnet 172.21.222.11.3891 ESTABLISHEDtcp 0 0 *.www *.* LISTENtcp 0 0 *.11111 *.* LISTENtcp 0 0 *.ftp *.* LISTENtcp 0 0 *.telnet *.* LISTENudp 0 0 127.0.0.1.524 *.* Active Internet6 connections (including servers)Proto Recv-Q Send-Q Local Address Foreign Address Statetcp6 0 0 *.80 *.* LISTENtcp6 0 0 *.11111 *.* LISTENtcp6 0 0 *.21 *.* LISTENtcp6 0 0 *.23 *.* LISTEN

COMMAND EXECUTED


ZQRX OutputQRX:OMU::IP=10.2.77.220:PING:;BSC3i BSC31-LAB 2007-01-25 12:48:35

PING, SENDING UNIT: OMU

PING 10.2.77.220 (10.2.77.220): 56 data bytes64 bytes from 10.2.77.220: icmp_seq=0 ttl=254 time=9.282 ms

----10.2.77.220 PING Statistics----1 packets transmitted, 1 packets received, 0% packet lossround-trip min/avg/max = 9.282/9.282/9.282 ms

COMMAND EXECUTED< QRX:OMU::IP=10.2.77.220:TRACE;


BSC3i BSC31-LAB 2007-01-25 12:49:39

TRACEROUTE, SENDING UNIT: OMU

traceroute to 10.2.77.220 (10.2.77.220), 15 hops max, 38 byte packets

1 10.2.99.2 1.056 ms 2 10.2.77.220 0.781 ms

COMMAND EXECUTED

Hosts that through them message

reach the destination


ZQKB Output

QKB:;

BSC3i BSC31-LAB 2007-01-25 12:51:24

INTERROGATED STATIC ROUTES

ROUTE

UNIT DESTINATION GATEWAY ADDRESS TYPE NBR

------------------- ------------------ ------------------ ----- ----

BCSU-1 -PCU2D-3 DEFAULT ROUTE 10.2.77.2 LOG 2

OMU DEFAULT ROUTE 10.2.99.2 LOG 1

COMMAND EXECUTED


ZFXL OutputFXL:;BSC3i BSC31-LAB 2007-01-24 17:30:18PACKET SERVICE ENTITY DATAPSE-00

COMMAND EXECUTED< FXL:PSEI=0;LOADING PROGRAM VERSION 1.13-0BSC3i BSC31-LAB 2007-01-25 12:53:56PACKET SERVICE ENTITY DATA

PSE-00======

ATTACHED NSE(S) TO PSE:NSEI---------------------------------------------------------------------01755

ATTACHED PCU(S) TO PSE:PCU BCSU PCUID INDEX INDEX--- ----- -----00 00 03COMMAND EXECUTED


ZFXI Output< FXI:NSVLI=5500;


BSC3i BSC31-LAB 2007-01-25 12:56:54

NETWORK SERVICE VIRTUAL LINK PARAMETERS:

EQOS ENABLED

PSE-00 NSE-01755

================

LOCAL UDP PORT: 33000

NSE PFC MODE: ON

STATIC CONFIGURED NS-VL(S):

OP REMOTE REMOTE

ID NAME STATE RDW RSW IP ADDRESS UDP PORT

----- ---------- ----- --- --- --------------- --------

05500 GBIP WO-EX 010 005 10.2.77.220 50000

ID REMOTE HOST NAME

----- ----------------

COMMAND EXECUTED


ZIAI OutputIAI:USERID=ALL;EXECUTION STARTEDBSC3i BSC31-LAB 2007-01-25 12:58:40

USER ID: SYSTEMPROFILE NAME: PROFILE COMMAND CLASS AUTHORITIES:

A=250 B=250 C=250 D=250 E=250 F=250 G=250 H=250 I=250 J=250 K=250 L=250 M=250 N=250 O=250 P=250 Q=250 R=250 S=250 T=250 U=250 V=250 W=250 X=250 Y=250

PARALLEL PASSWORD EXISTENCE: YESPASSWORD VALIDITY TIME LEFT: PASSWORD NEVER EXPIRESMML COMMAND LOG ACCESSIBILITY: LIMITED

UNIQUE PROFILE: NO

MML SESSION IDLE TIME LIMIT: 15 MIN(S)

FTP ACCESSIBILITY: WRITE

NETWORK USE ALLOWED: NO

COMMAND EXECUTED

FTP setting for this profile


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NSN GLN0 Interrogating IP

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