TCU (traffic control unit)

Содержание

Слайд 2

AGENDA TCU 2 Overview TCU 2 Configuration TCU 2 Integration

AGENDA
TCU 2 Overview
TCU 2 Configuration
TCU 2 Integration

Слайд 3

TCU Overview The Site Transport Node (STN) is a node in

TCU Overview

The Site Transport Node (STN) is a node in the

Base Station System (BSS), this is the TCU logical name, that handle & provides a common interface between RBS (GSM, WCDMA, CDMA, LTE, single or multi-standard, legacy or 3rd party equipment), and IP/Ethernet over IP over E1/T1 transport networks.
The TCU 02 (Transport Connectivity Unit) is a component in the RBS 6000 product family and has been designed primarily to support Multi Standard RBS with advanced transport functionality.
Слайд 4

TCU 2 4 SPF Ethernet ports Multipurpose use: Connected to 4

TCU 2

4 SPF Ethernet ports
Multipurpose use: Connected to 4 of the

RJ45 ports, the configuration decides which one use.

8 E1s Ports: Connect 2G RBSs or to transmission network with ML-PPP

Power -48 DC

Clock Port (SNC)

4 RJ45 Ethernet ports

Local management Port

Слайд 5

SW TCU 02 Abis over IP Abis optimization NTP, PTP client,

SW TCU 02

Abis over IP
Abis optimization
NTP, PTP client, Sync E
Ethernet Bridging
Performance

monitoring
Ethernet OAM
Routing Ethernet & MLPPP (E1/T1)
IPv4 Bi-directional forwarding Detection
Policy based routing
Слайд 6

TCU Overview What does the TCU do? In the downlink direction,

TCU Overview

What does the TCU do?
In the downlink direction, STN unpacks

the IP packets received on the Ethernet interface. The contained LAPD packets are sent to the BTS using the super channel.
In the uplink direction, LAPD frames from the BTS are received on the super channel in LAPD format. The LAPD frames from the super channels are sorted according to traffic types. Traffic types configured by the operator to be bundled together are sent to the same bundling process and packed together into the same IP packet and sent to the BSC/PGW.
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TCU Overview The feature Abis over IP makes it possible for

TCU Overview

The feature Abis over IP makes it possible for the

operators to use an IP infrastructure for the transmission of signaling and payload between BSC and BTS.
The Packet Gateway, PGW, is used to terminate IP on the BSC side. Other BTS side, IP is terminated in the Site Transport Node for RBS, STN.
The IP network between the PGW in the BSC and the STN in the BTS uses IPv4. For Abis over IP, the SC concept is only a model in the PGW, the real super channels only exists between the STN and the BTS. The whole PCM link constitutes a super channel. Similarly to the Digital Paths, there are four SCs with fixed size of 31 timeslots possible to use per TG. There exist a fixed relationship between TRXs and SCs, one TRX cannot transmit over different SCs. The SCs going to one TG are grouped in one Super Channel Group (SCGR).
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TCU Overview Using IP transport on the Abis interface the operator

TCU Overview

Using IP transport on the Abis interface the operator can

substantially lower the cost for operation and maintenance of transport networks. IP networks also give a more cost effective transmission compared to E1/T1 based transmission.
The PGW handles the speech, GPRS/EGPRS and the signaling in the same piece of hardware. The PGW can handles a mix of IP based Abis transmission and E1/T1 based Abis transmission. Each TG can only use one type of transmission mode.
To support QoS handling, it is possible to put different codes on different traffic types.
BSC supports upto 64 PGW RPs.
The amount of traffic one PGW can handle depends on network configuration and traffic load. One PGW can support upto 127 TRXs and upto 500 Erlang with a traffic load according to the traffic model.
Cascaded sites are not supported.
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Ethernet bridging

Ethernet bridging

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Access TCU Connect TCU via Local Management Terminal RJ45 conector to

Access TCU

Connect TCU via Local Management Terminal
RJ45 conector to Local Management

port
telnet 192.168.1.1/24
username: admin
password: hidden
TCU prompt: OSmon>
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Basic Command List available commands: OSmon> help Print the log with

Basic Command

List available commands:
OSmon> help
Print the log with complete configuration:
OSmon> syslog

read -s system
OSmon> syslog read -s event
OSmon> syslog read -s messages
List all active alarms in the TCU
OSmon>getalarmlist
Print uptime for the system:
OSmon> uptime
Reset to default factory setting, all configuration will be erased
OSmon>ResetToFactorySetting
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Basic Command List MO instances in a specific MO containment hierarchy

Basic Command

List MO instances in a specific MO containment hierarchy under

and including the baseObjectInstance .
Eg.
>getContainmentt1 STN=0
>STN=0;
>STN=0,Equipment=0;
>STN=0,EthernetInterface=0;
>STN=0,IPInterface=0;
>STN=0,Synchronization=0;
>STN=0,MeasurementDefinition=0;
>STN=0,E1T1Interface=0;
>STN=0,TGTransport=p2;
>STN=0,TGTransport=p2,SuperChannel=0;
>OperationSucceeded
Слайд 13

Basic Command Displays Managed Object (MO) attribute values Eg OSmon> getmoattribute

Basic Command

Displays Managed Object (MO) attribute values
Eg OSmon> getmoattribute stn=0,e1t1interface=0
STN=0,E1T1Interface=0;

instanceId= 0;
STN=0,E1T1Interface=0; operationalState= disabled;
STN=0,E1T1Interface=0; type= E1;
STN=0,E1T1Interface=0; transmitClockSource= localTiming;
STN=0,E1T1Interface=0; receiveClockSource= notUsed;
STN=0,E1T1Interface=0; loopbackMode= off;
OperationSucceeded
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Basic Command To execute configuration commands via CLI (command line interface)

Basic Command

To execute configuration commands via CLI (command line interface) is

needed to do it within a transaction
Eg
>starttransaction s1
>setMOAttribute s1 …
>…
>Checkconsistency s1
>commit s1
>endtransaction s1
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SW release for TCU

SW release for TCU

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TCU Configuration Attaching Local Terminal O&M Resetting Configuration Set Time for

TCU Configuration

Attaching Local Terminal O&M
Resetting Configuration
Set Time for TCU
Start basic CM

Transaction
Set Unique Name for TCU
Configuring WAN & VLAN
Configuring IP interface Traffic & OAM
Configuring Routing Table for IP Interface Traffic
Configuring OSS Registration for TCU
Configuring Time Reference for TCU
Configuring Synchronization for TCU
Configuring E1/T1
Configuring TG Transport and Super Channel
Configuring QoS Mapping Policy
Finishing Configuration TCU
Getting TCU logs
Слайд 17

Basic trouble shooting knowledge: LED indicators Power – Green color. On,

Basic trouble shooting knowledge: LED indicators

Power – Green color.
On, TCU has

power
Off, TCU has no power
Fault – Red color.
On, Major alarms detected.
Off, No faults detected.
Operational – Green color.
On, TCU is operational.
Flashing 10 Hz, active SSH or SFTP session.
Flashing 0.5 Hz, TCU powered but not operational.
Off, TCU no powered.
Information – Yellow color.
On, Minor alarm detected.
Off, No faults detected.
Synchronized – Green color.
On, TCU provides sufficient timing to RBSs for RF generation.
Off, Timing provided by TCU cannot be used for RF generation
Слайд 18

TCU Configuration Resetting Configuration To reset the STN configuration to default

TCU Configuration

Resetting Configuration
To reset the STN configuration to default values, do

the following:
Command: resettofactorysetting
This command resets the TCU to default factory setting. MIB content is erased and persistent data including security and synchronization data is cleared. Software archives are not affected by this command.
The STN restart takes a few minutes.
Слайд 19

TCU Configuration Set Time for TCU Example: settime Year(1970->) Mon(1-12) Day(1-31)

TCU Configuration

Set Time for TCU
Example:
settime Year(1970->) Mon(1-12) Day(1-31) Hour(0-23) Min(0-59) Sec(0-59)

Msec(0-999)
settime 2011 6 15 24 00 00 000
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TCU Configuration Start basic CM Transaction Example: starttransaction asdf Name of

TCU Configuration

Start basic CM Transaction
Example:
starttransaction asdf
Name of the transaction can be

changed with unique name eg:; 1,2,3,asdf,t1 etc
Слайд 21

TCU Configuration Set the Unique Name (maximum 18 characters) for TCU

TCU Configuration

Set the Unique Name (maximum 18 characters) for TCU
Example:
setmoattribute asdf

STN=0 stn_name TCURBR0073
Слайд 22

TCU Configuration Configuring WAN & VLAN Example: createmo asdf STN=0,EthernetInterface=WAN setmoattribute

TCU Configuration

Configuring WAN & VLAN
Example:
createmo asdf STN=0,EthernetInterface=WAN
setmoattribute asdf STN=0,EthernetInterface=WAN port WANFastEthernet
setmoattribute

asdf STN=0,EthernetInterface=WAN mode AUTO
setmoattribute asdf STN=0,EthernetInterface=WAN portNumber 0
setmoattribute asdf STN=0,EthernetInterface=WAN sendLinkAlarmAllowed true
createmo asdf STN=0,VLANGroup=WAN
setmoattribute asdf STN=0,VLANGroup=WAN depLinkLayer STN=0,EthernetInterface=WAN
createmo asdf STN=0,VLANGroup=WAN,VLAN=2G
setmoattribute asdf STN=0,VLANGroup=WAN,VLAN=2G tagValue 3172 !VLAN ABIS!
setmoattribute asdf STN=0,VLANGroup=WAN,VLAN=2G tagged true
createmo asdf STN=0,VLANGroup=WAN,VLAN=OM
setmoattribute asdf STN=0,VLANGroup=WAN,VLAN=OM tagValue 3122 !VLAN OM!
setmoattribute asdf STN=0,VLANGroup=WAN,VLAN=OM tagged true
Слайд 23

TCU Configuration Configuring IP interface Traffic & OAM Example: createmo asdf

TCU Configuration

Configuring IP interface Traffic & OAM
Example:
createmo asdf STN=0,IPInterface=2G
setmoattribute asdf STN=0,IPInterface=2G

primaryIP_Address 10.235.1.204 !IP address ABIS!
setmoattribute asdf STN=0,IPInterface=2G primarySubNetMask 255.255.255.240 !Netmask ABIS!
setmoattribute asdf STN=0,IPInterface=2G depLinkLayer STN=0,VLANGroup=WAN,VLAN=2G
setmoattribute asdf STN=0,IPInterface=2G trustDSCP true
createmo asdf STN=0,IPInterface=OM
setmoattribute asdf STN=0,IPInterface=OM primaryIP_Address 10.234.1.204 !IP address OM!
setmoattribute asdf STN=0,IPInterface=OM primarySubNetMask 255.255.255.240 !Netmask OM!
setmoattribute asdf STN=0,IPInterface=OM defaultGateway 10.234.1.193 !Default gateway OM!
setmoattribute asdf STN=0,IPInterface=OM depLinkLayer STN=0,VLANGroup=WAN,VLAN=OM
setmoattribute asdf STN=0,IPInterface=OM trustDSCP true
setmoattribute asdf STN=0 depIP_interface stn=0,ipinterface=OM
Слайд 24

TCU Configuration Configuring Routing Table for IP Interface Traffic Example: createmo

TCU Configuration

Configuring Routing Table for IP Interface Traffic
Example:
createmo asdf STN=0,RoutingTable=0,IPRoute=2G
setmoattribute asdf

STN=0,RoutingTable=0,IPRoute=2G forwardingInterface STN=0,IPInterface=2G
setmoattribute asdf STN=0,RoutingTable=0,IPRoute=2G nextHopIpAddress 10.235.1.193 !Default gateway ABIS!
setmoattribute asdf STN=0,RoutingTable=0,IPRoute=2G destIpSubnet 10.235.0.128/26 !destIpSubnet PGW!
setmoattribute asdf STN=0,RoutingTable=0,IpRoute=2G admDistance 2
createmo asdf STN=0,RoutingTable=0,IPRoute=NWIE
setmoattribute asdf STN=0,RoutingTable=0,IpRoute=NWIE forwardingInterface STN=0,IPInterface=2G
setmoattribute asdf STN=0,RoutingTable=0,IpRoute=NWIE nextHopIpAddress 10.235.1.193 !Default gw ABIS!
setmoattribute asdf STN=0,RoutingTable=0,IpRoute=NWIE destIpSubnet 10.235.0.0/25 !destIpSubnet NWIE!
setmoattribute asdf STN=0,RoutingTable=0,IpRoute=NWIE admDistance 3
Слайд 25

TCU Configuration Configuring OSS Registration for TCU Set wake-up registration to

TCU Configuration

Configuring OSS Registration for TCU
Set wake-up registration to OSS, the

OSS IP address is used.
Example:
setmoattribute asdf STN=0 wakeupregistration 10.224.16.4 !IP Address OSS!
Configure SNMP to IP address OSS
Example:
subscribe 10.224.16.4 3 !Configure SNMP to IP Address OSS!
Слайд 26

TCU Configuration Configuring Time Reference for TCU Example: setmoattribute asdf STN=0

TCU Configuration

Configuring Time Reference for TCU
Example:
setmoattribute asdf STN=0 systemClockTimeServer 192.168.1.25 !IP

Address NTP Server!
setmoattribute asdf STN=0 systemClockTimeServerType NTP
setmoattribute asdf STN=0 STN_systemClockUDP_Port 123
Слайд 27

TCU Configuration Configuring Synchronization for TCU Example: setmoattribute asdf STN=0,synchronization=0 synchType

TCU Configuration

Configuring Synchronization for TCU
Example:
setmoattribute asdf STN=0,synchronization=0 synchType timeServer
setmoattribute asdf STN=0,synchronization=0

DSCP_synchronization 48 !DSCP for Synchronization!
setmoattribute asdf STN=0,synchronization=0 depIP_interface stn=0,ipinterface=OM
createmo asdf STN=0,synchronization=0,Timeserver=TS1
setmoattribute asdf STN=0,synchronization=0,Timeserver=TS1 timeServerType NTP
setmoattribute asdf STN=0,synchronization=0,Timeserver=TS1 STN_TS_UDP_Port 123
setmoattribute asdf STN=0,synchronization=0,Timeserver=TS1 TS_IP_Address 192.168.1.25 !IP Address NTP Server!
setmoattribute asdf STN=0,synchronization=0,Timeserver=TS1 TS_Priority 1 !Pbit for NTP Sync!
Слайд 28

TCU Configuration Configuring E1/T1 Example: E1/T1 port 1 createmo asdf STN=0,E1T1Interface=0

TCU Configuration

Configuring E1/T1
Example:
E1/T1 port 1
createmo asdf STN=0,E1T1Interface=0
setmoattribute asdf STN=0,E1T1Interface=0 type E1
createmo

asdf STN=0,E1T1Interface=1
setmoattribute asdf STN=0,E1T1Interface=1 type E1
E1/T1 port 2
createmo asdf STN=0,E1T1Interface=2
setmoattribute asdf STN=0,E1T1Interface=2 type E1
createmo asdf STN=0,E1T1Interface=3
setmoattribute asdf STN=0,E1T1Interface=3 type E1
Слайд 29

TCU Configuration Configuring TG Transport and Super Channel Example: TG Transport

TCU Configuration

Configuring TG Transport and Super Channel
Example:
TG Transport for E1/T1 port1
createmo

asdf STN=0,TGTransport=RBR0073_TG0153
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0153 depIP_interface stn=0,ipinterface=2G
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0153 pgw_ip_address 10.235.0.131 !IP Address pool PGW!
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0153 DSCP_L2TP_CP 48 !DSCP for L2TP_CP!
createmo asdf STN=0,TGTransport=RBR0073_TG0153,SuperChannel=0
createmo asdf STN=0,TGTransport=RBR0073_TG0153,SuperChannel=1
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0153,SuperChannel=0 depE1T1Interface 0
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0153,SuperChannel=1 depE1T1Interface 1
Слайд 30

TCU Configuration TG Transport for E1/T1 port2 createmo asdf STN=0,TGTransport=RBR0073_TG0154 setmoattribute

TCU Configuration
TG Transport for E1/T1 port2
createmo asdf STN=0,TGTransport=RBR0073_TG0154
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0154 depIP_interface

stn=0,ipinterface=2G
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0154 pgw_ip_address 10.235.0.131 !IP Address pool PGW!
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0154 DSCP_L2TP_CP 48 !DSCP for L2TP_CP!
createmo asdf STN=0,TGTransport=RBR0073_TG0154,SuperChannel=0
createmo asdf STN=0,TGTransport=RBR0073_TG0154,SuperChannel=1
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0154,SuperChannel=0 depE1T1Interface 2
setmoattribute asdf STN=0,TGTransport=RBR0073_TG0154,SuperChannel=1 depE1T1Interface 3
Слайд 31

TCU Configuration Configuring QoS Mapping Policy Example: DSCP-to-Queue mapping createmo asdf

TCU Configuration

Configuring QoS Mapping Policy
Example:
DSCP-to-Queue mapping
createmo asdf STN=0,QoSPolicy=0
setmoattribute asdf STN=0,QoSPolicy=0 dscp2q48

1
setmoattribute asdf STN=0,QoSPolicy=0 dscp2q46 2
setmoattribute asdf STN=0,QoSPolicy=0 dscp2q28 3
DSCP-to-PCP mapping
setmoattribute asdf STN=0,QoSPolicy=0 dscp2pcp48 7
setmoattribute asdf STN=0,QoSPolicy=0 dscp2pcp46 5
setmoattribute asdf STN=0,QoSPolicy=0 dscp2pcp32 6
setmoattribute asdf STN=0,QoSPolicy=0 dscp2pcp28 4
setmoattribute asdf STN=0,QoSPolicy=0 dscp2pcp8 4
Слайд 32

TCU Configuration Finishing Configuration TCU Example: checkconsistency asdf commit asdf forcedcommit endTransaction asdf

TCU Configuration

Finishing Configuration TCU
Example:
checkconsistency asdf
commit asdf forcedcommit
endTransaction asdf

Слайд 33

TCU Configuration Getting TCU logs Example: log clear traceallmoattributeinlog log read

TCU Configuration

Getting TCU logs
Example:
log clear
traceallmoattributeinlog
log read

Слайд 34

VERIFYING TCU STATUS Do ping test: Ping from TCU to ME

VERIFYING TCU STATUS

Do ping test:
Ping from TCU to ME Router
Ping from

TCU to OSS
Ping from TCU to FTP Time Server
Ping from TCU to NWIE and PGW
Слайд 35

TCU Health Commands

TCU Health Commands

Слайд 36

Thank you

Thank you

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