09_rn28229en30gla0_etp card external interface configuration

For internal use Nokia Solutions and Networks 2014

ETP Card External Interface Configuration

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2 Nokia Solutions and Networks 2014 For internal use

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Nokia Solutions and Networks Academy

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Module Objectives

Refer to RG30 Documentation: Plan and dimension / BSC Site IP Connectivity Guidelines (DN03502792) Plan and dimension / BSC Site IP Configuration Examples (DN70609908)

After completing this learning element, the participant will be able to: List ETPE/T/A configuration

List ETPC configuration

List the ETP interfaces

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ETPE/T/A Configuration

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ETP Hardware and Functional Units

ETP-A

ETPE ETPT

Packet Abis over ethernet

ETP

ETPA ETPC

AoIP with MGW AoIP with TCSM Packet Abis over

TDM

Hardware PIU

Functional unit

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Redundancy principle: Redundant pair

Normally both units are in WO-EX state, one unit is active and the other is protecting (idle) - Only the active unit is processing Abis/AoIP traffic

Switchover: Protecting unit takes the active role - Virtual address mapping is changed at switchover (Gratuitous ARP)

Forced switchover - Initiated by forced state change or restart of the active unit - Forced state change can be caused by a fault or user command - Calls are cleared

Controlled switchover - Initiated when the user changes the active unit to BL state (forced parameter not used) - Ongoing calls are maintained, information of ongoing calls is warmed to the redundant unit during

switchover Disturbance Spare Unit Warmup Failure (1684) if warming fails

ETPE/ETPT/ETPC Equipment Protection

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ETPE and ETPT cards are paired for 2N unit redundancy

Pairs are identified by the first digit in the ETPE/T card number - e.g. pair zero is numbered 0-0, 0-1 and pair one 1-0, 1-1

for ETPA cards load sharing redundancy is used

all installed ETPAs are active, and in case of a problem occurring in one card, its traffic is distributed between the remaining active cards.

ETP Card Redundancy

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On the EL0 interface, either interface redundancy or unit redundancy is applied

Interface redundancy is applied when no redundancy pair has been installed for an ETPE/T card (The dotted lines in the diagram show the cabling of ETPE 0-0 and ETPT 4-0 in case ETPE 0-1 and ETPT 4-1 does not exist.).

Unit redundancy is applied if both units of a redundancy pair have been installed. In such cases, the two units of a pair are connected to separate site equipment or ETS2 units (as shown in diagram by the solid lines).

ETP Card Redundancy for ETPEs and ETPTs

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ETS2 Equipment Redundancy with ETPT

BSC

GSWB-1

ETPT-0-1 idle

ETPT-0-0 active GSWB-0

SET-3

STMU-0 active

SET-2

SET-1

SET-0

SET-7

STMU-1 idle

SET-6

SET-5

SET-4

protecting

Not used

working

STM1/OC3 interfaces

Hotlink interfaces

GigE cs ok

Not used

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ETS2 Interface Redundancy with ETPT

BSC

GSWB-1

ETPT-0-0 active

GSWB-0

SET-3

STMU-0 active

SET-2

SET-1

SET-0

working

protecting

STM1/OC3 interfaces

Hotlink interfaces

MPS1+1 pair

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Unit Redundancy for ETPEs

SWU-7

IL0

IL1

EL0

ETPE 5-0

Switch Router

Switch Router IL0

IL1

EL0

ETPE 5-1

SWU-6

BSC

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Interface Redundancy for ETPEs

SWU-7

IL0

IL1

EL0

ETPE 5-0

Switch Router

Switch Router

SWU-6

BSC

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Unit Redundancy for ETPTs

SWU-7

IL0

IL1

EL0

ETPT 4-0

IL0

IL1

EL0

ETPT 4-1

SWU-6

BSC

SET 3

SET 2 ETS2

SET 7

SET 6 ETS2

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Interface Redundancy for ETPTs

SWU-7

IL0

IL1

EL0

ETPT 4-0 SWU-6

BSC

SET 3

SET 2 ETS2

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Redundancy principle: Load sharing group

Normally all units are in WO-EX state and are able to carry traffic

Forced state change - Forced state change can be caused by a fault (to TE) or user command (to BL) - Calls are cleared

Controlled shutdown - Initiated when the user changes the unit to BL state (forced parameter not used) - Ongoing calls are maintained (until time-out), new calls are not allowed

ETPA Equipment Protection

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In the example configuration below, the six pairs of ETPEs share a routable subnet a.b.d.0/28. Subnet a.b.d.0/28

- Virtual gateway address a.b.d.1 (L2/L3 switches) - Primary gateway address a.b.d.2 (L2/L3 switch 1) - Secondary gateway address a.b.d.3 (L2/L3 switch 2) - Logical address a.b.d.4 shared between the two ETPEs 0-0 and 0-1. - Logical address a.b.d.5 shared between the two ETPEs 1-0 and 1-1 - Logical address a.b.d.6 shared between the two ETPEs 2-0 and 2-1 - Logical address a.b.d.7 shared between the two ETPEs 3-0 and 3-1 - Logical address a.b.d.8 shared between the two ETPEs 4-0 and 4-1 - Logical address a.b.d.9 shared between the two ETPEs 5-0 and 5-1

These addresses are used for both PS and CS U-plane data.

The traffic types are differentiated by UDP port numbering.

IP Planning Packet Abis CS and PS User Plane

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Since traffic is carried in fixed lines over a TDMA Packet Abis interface with no actual routing involved, a non-routable subnet may be used for addressing the ETPTs (and the associated BTSs). In the example, the subnet 10.0.3.0 /24 is reserved for the configuration of ETPT 5-0, ETPT 5-1 (and the associated BTSs). Subnet 10.0.3.0/24

- Logical address 10.0.3.1 shared between the two ETPTs 0-0 and 0-1 - Logical address 10.0.3.2 shared between the two ETPTs 1-0 and 1-1 - Logical address 10.0.3.3 shared between the two ETPTs 2-0 and 2-1 - Logical address 10.0.3.4 shared between the two ETPTs 3-0 and 3-1 - Logical address 10.0.3.5 shared between the two ETPTs 4-0 and 4-1 - Logical address 10.0.3.6 shared between the two ETPTs 5-0 and 5-1 - Starting BTSs addresses 10.0.3.6

These addresses are used for both PS and CS U-plane data. The traffic types are differentiated by UDP port numbering.

In addition, a HDLC link needs to be configured between BTS and the ETPT unit attached to it. This is described in the

S15/S16 ETP/ETP-A Implementation document.

IP Planning Packet Abis CS and PS User Plane

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In the example configuration below, a subnet a.b.d.16 /29 is reserved for the ETPA card address configuration. Subnet a.b.d.16/29 Virtual gateway address a.b.d.17 (L2/L3 switches) Primary gateway address a.b.d.18 (L2/L3 switch 2) Secondary gateway address a.b.d.19 (L2/L3 switch 1) Physical address a.b.d.20 for ETPA0 Physical address a.b.d.21 for ETPA1 Physical address a.b.d.22 for ETPA2 Physical address a.b.d.23 for ETPA3

IP Planning AoIP CS and PS User Plane

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ETP M/C & U Plane Configuration

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Each BTS configured for Packet Abis is logically associated with just one ETPE, which is then used as a gateway for the traffic to that BTS.

ETPE cards support up to 256 BTS connections. - It is recommended that all BTSs attached to a given ETPE card are allocated an IP address from the

same subnet.

ETPE Configuration

BCSU BTS

ETPE

SWU

Router

M-plane and C-plane

U-plane

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Each BTS configured for Packet Abis is logically associated with just one ETPT, which is then used as a gateway for the traffic to that BTS.

ETPT cards support up to 256 BTS connections. - It is recommended that all BTSs attached to a given ETPT card are allocated an IP address from the

same subnet.

ETPT Configuration

ETPT BTS

BCSU

STMU

M-plane and C-plane

U-plane

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On the A-interface, an ETPA is attached to one or more Media Gateway

C- plane is using SIGTRAN

ETPA Configuration

MGW

MGW

Router

U-plan ETPA 0

ETPA 2

ETPA 1

ETPA 3

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ETPE/T/A Configuration Summary

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ETPC Configuration

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The redundancy scheme for the external EL0 interface of ETPC cards is identical with that of ETPE/ETPT cards.

either interface or unit redundancy is applied depending on whether both units of a redundancy pair have been installed.

The dotted lines complete the cabling when the redundancy pairs have not been installed and only interface redundancy is applied on EL0.

The IL0/IL1 interface is not applied in case of ETPC cards.

Redundancy for ETPC

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ETPC units are installed into either a standalone transcoder (TCSM3i), or into a combined BSC/transcoder installation. Each TCSM3i may accommodate five pairs of ETPC units. For each ETPC the following addresses need to be configured: On EL0: one physical address for ETPSIG-m One logical address for ETPSIG-c One logical address for U-plane Subnet a.b.d.32/27 Virtual gateway address a.b.d.33 (L2/L3 switches) Primary gateway address a.b.d.34 (L2/L3 switch 1) Secondary gateway address a.b.d.35 (L2/L3 switch 2) Logical address a.b.d.36 shared between the two ETPCs 0-0 and 0-1 Logical address a.b.d.37 shared between the two ETPCs 1-0 and 1-1 Logical address a.b.d.38 shared between the two ETPCs 2-0 and 2-1 Logical address a.b.d.39 shared between the two ETPCs 3-0 and 3-1 Logical address a.b.d.40 shared between the two ETPCs 4-0 and 4-1 Logical address a.b.d.41 shared between the two ETPCs 5-0 and 5-1 .

1/3 ETPC Configuration

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. For ETPSIG-m physical address a.b.d.42 for ETPC 0-0. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.43 for ETPC 0-1. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.44 for ETPC 1-0. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.45 for ETPC 1-1. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.46 for ETPC 2-0. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.47 for ETPC 2-1. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.48 for ETPC 3-0. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.49 for ETPC 3-1. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.50 for ETPC 4-0. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.51 for ETPC 4-1. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.52 for ETPC 5-0. Address type: P. Address attributes: VIM For ETPSIG-m physical address a.b.d.53 for ETPC 5-1. Address type: P. Address attributes: VIM


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For ETPSIG-c logical address a.b.d.54 shared between the two ETPC units numbered 0-0 and 0-1.

Address type: L. Address attributes: VC. For ETPSIG-c logical address a.b.d.55 shared between the two ETPC units numbered 1-0 and 1-1.





Address type: L. Address attributes: VC.


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ETP Interface Configuration

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The external EL0 interface supports carrier sense interface redundancy: EL0 comprises two SFP units between which this is applied.

The internal IL0/IL1 interface is of type BOND: i.e. unlike on a carrier

sense interface, both physical interfaces are active and may send and receive simultaneously.

On the IL0/IL1 interface, interface redundancy is always applied for ETPEs, ETPTs and ETPAs.

In addition, unit redundancy is applied to ETPEs and ETPTs when both units of a redundancy pair have been installed.

IP Interfaces of ETP

EL0

IL0 IL1

BOND0

IM0

ETP

ETPLAN

Pair unit

IN0 DSPs

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ETP or ETP-A connects to the transport network via two different interfaces, one interface is active and the other is passive - Carrier sense Ethernet - ETP Ethernet interface failure (3515) alarm

ETPT is a special case: interface redundancy is implemented in the ETS2. A control channel exists between the ETPT and ETS2 for interface redundancy purposes. - Unit state bit in the hotlink.

Interface Redundancy

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IN0 and IM0 Interfaces

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For all ETPE/T/C cards an IN0 interface is used for connecting the card to Octeon DSP interface. For each card a physical address is configured for IN0.

Address type: P and address attributes: I.

A non- routable address space is used.

For all ETPE/T/C cards an IM0 interface is used for the direct link connecting the two cards forming a redundancy pair. For each card a physical address is configured for IM0. Address type: P. Address attributes: I. A non-routable address space is used.

IN0 is the ETP internal interface that connects the ETPEs Octeon processor to the DSPs. This interface is needed for ETP - GSWB connectivity. To create the IN0 a subnet of size /24 has to be planned, the same subnet can be used for all the ETP units of the BSC.

Upon giving the first address of the subnet to be a base address, Octeon calculates and applies DSP core addresses as offset of this base address.

IN0 and IM0 Interfaces

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EL0 External Link 0: Abis CS/PS u-planes, e2e measurement packets and SynchE, Telnet, ssh. - Carrier sense interface

IL0/1 Internal Link 0/1: ETPSIG-c, ETPSIG-m, PEP Link, EEP link, DHCP, FTP (SW upgrade).

BOND0 Internal links IL0 and IL1 are connected into one BOND interface - Both interfaces are active providing redundancy

IN0 Internal Octeon - DSP interface.

IM0 Internal direct link between Sn+ load sharing pair.

Summary IP Interfaces

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Interrogate Network Interface Data

ZQRI:ETPE,5,; FlexiBSC BSC1 2011-08-23 22:20:45 INTERROGATING NETWORK INTERFACE DATA UNIT ADMIN ADDR INTERFACE STATE MTU ATTR IP ADDRESS ------------ ----- ----- -------- --------------------------------------------- ETPE-5-0 BOND0 UP 1500 PIDM (10.0.1.19/26) ->IL0 IL1 LVIC (10.0.1.30/26) EL0 UP 1500 IL0 UP 1500 IL1 UP 1500 IM0 UP 1500 PI (10.0.4.11/27) IN0 UP 1500 PI (10.0.3.11/24) VLAN21 UP 1500 LVI (10.0.1.70/26) EEP ->BOND0 21 0/0 VLAN22 UP 1500 LVI (10.0.2.6/24) PEP ->BOND0 22 0/0 VLAN321 UP 1500 L (10.26.220.41/27) ->EL0 321 0/0

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ETP Card External Interface ConfigurationNokia Solutions and Networks AcademyModule ObjectivesETPE/T/A ConfigurationETP Hardware and Functional UnitsETPE/ETPT/ETPC Equipment ProtectionETP Card RedundancyETP Card Redundancy for ETPEs and ETPTsETS2 Equipment Redundancy with ETPTETS2 Interface Redundancy with ETPTUnit Redundancy for ETPEsInterface Redundancy for ETPEsUnit Redundancy for ETPTsInterface Redundancy for ETPTsETPA Equipment ProtectionIP Planning Packet Abis CS and PS User PlaneIP Planning Packet Abis CS and PS User PlaneIP Planning AoIP CS and PS User PlaneETP M/C & U Plane ConfigurationETPE ConfigurationETPT ConfigurationETPA ConfigurationETPE/T/A Configuration SummaryETPC ConfigurationRedundancy for ETPCETPC ConfigurationETPC ConfigurationETPC ConfigurationETP Interface ConfigurationIP Interfaces of ETPInterface RedundancyIN0 and IM0 InterfacesIN0 and IM0 InterfacesIP InterfacesInterrogate Network Interface Data

09_rn28229en30gla0_etp card external interface configuration

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