Nokia SBC Network Design Overview

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Questions and Answers

What is the maximum number of bearer networks that one PIM can support?

8 (correct)

What type of IP scheme does OpenStack uniquely require compared to RMS and VMware?

No additional IPs required

A higher overall number of IPs

Extra floating IPs for OAM services

Secondary IPs for each floating IP (correct)

Which of the following statements is correct regarding the maximum peering networks supported by FW-P?

It supports a maximum of 5 peering networks on OpenStack. (correct)

It can support an unlimited number of peering networks.

It supports a maximum of 10 peering networks in both OpenStack and VMware.

It can only support one peering network.

In the context of PIM capacities, which configuration allows reaching above 19K sessions?

At least 2 trusted and 2 untrusted bearer networks Signup and view all the answers

Which statement is true regarding the combination of H248?

H248 can be combined with SIG Trusted. Signup and view all the answers

What is the role of the Firewall in the SBC Networking architecture?

To provide protection against unauthorized access Signup and view all the answers

Which module is responsible for media conversion in the Nokia SBC components?

MCM Signup and view all the answers

What does the term 'Signaling VNFC' refer to in the SBC Networking architecture?

Virtual Network Function for signaling management Signup and view all the answers

Which component in the SBC setup is responsible for handling Diameter signaling?

DFED Signup and view all the answers

What type of network does the Session Controller serve in the SBC architecture?

Signaling Network Signup and view all the answers

Which SBC component is utilized for Operations and Management (OAM)?

SCM Signup and view all the answers

In terms of SBC Network Design Considerations, what does VMware not support?

Separate X1 and X2 vNIC Signup and view all the answers

What is the function of the Border Gateway Controller in SBC architecture?

It acts as an interface between internal and external networks. Signup and view all the answers

Which component would you expect to handle the H.248 signaling in the internal networks?

iCCF Signup and view all the answers

Which of the following is NOT a part of the SBC Networking architecture?

Mass Storage Module Signup and view all the answers

What does 'OAM' stand for in the context of SBC Networking?

Operations and Management Signup and view all the answers

Which of the following components is involved in both Access and Peering SBC configurations?

SCM Signup and view all the answers

What is the primary function of the Packet Interface Module in the SBC architecture?

To manage packet interfacing Signup and view all the answers

What is the primary function of the Signaling Floating IP in OpenStack?

It provides an internal DNS service for Signaling. Signup and view all the answers

Which of the following statements about P-CSCF and IBCF regarding external IP requirements is true?

Only P-CSCF requires an external IP in SIG Peering Networks. Signup and view all the answers

How does iCCF charging interact with diameter Rf configuration?

Diameter Rf can be configured using the Signaling internal network. Signup and view all the answers

In the SBC BGC and BGW IP and Port Allocation, what local port does VMG1 use for its connection?

2944 Signup and view all the answers

What is the primary purpose of the CDR IP in the network configuration?

For pulling CDR records from iCCF. Signup and view all the answers

What IP address is used by VMG2 for its remote connection?

192.168.1.2:2944 Signup and view all the answers

Which part of the network configuration does not require a public IP in SIG Untrusted networks?

IBCF Signup and view all the answers

What type of networks are used in the Duplex SR-IOV setup for the Nokia SBC?

Neutron networks with VLAN Signup and view all the answers

In the context of the SBC BGC and Background Gateway (BGW), what does the 'gwid' represent?

Gateway Identifier Signup and view all the answers

What does the acronym OAM stand for in the context of networking?

Operations and Maintenance Signup and view all the answers

Which type of interface does the Firewall and Front End Distributor handle?

Media interface Signup and view all the answers

What must be done in setting up the Duplex SR-IOV networks for external interfaces?

Pre-create two neutron networks with the same VLAN but different mappings. Signup and view all the answers

How many local IPs does VMG3 utilize in the provided IP/Port allocation?

4 Signup and view all the answers

How are the charging configurations affected when external charging is required?

Rf needs to be configured to use DFED. Signup and view all the answers

What is the maximum number of sessions per second for a configuration with 2 million subscribers?

123 Signup and view all the answers

How many bearers per subscriber are configured across all subscriber settings?

2 Signup and view all the answers

Which VM/VNFC type has the highest number configured for 2 million subscribers?

SC Signup and view all the answers

What does the term 'OAM' in RMS primarily refer to?

Operation and Maintenance Signup and view all the answers

Which component is categorized under DFED in the configurations for 1 million subscribers?

Data Functionality Engine Signup and view all the answers

What is the configuration setup for the PIM component when dealing with 1 million subscribers?

10 nodes Signup and view all the answers

Which signaling is used for external connection in the RMS 17.5 Media-Only configuration?

H248 Signup and view all the answers

What networking feature is mentioned in relation to the '2U RMS HOST'?

Linux bridge Signup and view all the answers

How many maximum sessions per second does the 1 million subscriber configuration support?

62 Signup and view all the answers

Which VLAN technology is used for tenant network isolation in RMS?

VLAN tagging Signup and view all the answers

Which function does QFED represent in relation to iSBC?

Query FED Signup and view all the answers

For 2 million subscribers, how many SC instances are configured?

4 Signup and view all the answers

Which component has a configuration of 10 plus 2 for the MCM type for 2 million subscribers?

Media Controller Signup and view all the answers

What is the purpose of VLANs in the RMS networking setup?

To isolate tenant networks Signup and view all the answers

How many ILO IPs are required for each RMS pair?

2 ILO IPs Signup and view all the answers

What is required for an iSBC VMware deployment?

A seed VM installation Signup and view all the answers

Which of the following statements is true regarding SCM H248 and PIM bearer?

They do not require extra IP for VIP in OpenStack. Signup and view all the answers

How many Host IPs are needed in the OAM network for each RMS pair?

2 Host IPs Signup and view all the answers

What is the implication of having a constraint on the number of IPs needed?

Two IPs may be used instead of three. Signup and view all the answers

Which version supports Host level OAM VLAN tagging?

R3.1.3 Signup and view all the answers

What does it mean to use 3 IPs conceptually easier to understand?

It provides clear separation of roles for each IP. Signup and view all the answers

Which of the following is NOT required in OAM networking for an RMS pair?

CDRs Signup and view all the answers

Study Notes

Nokia SBC Network Design

Nokia iSBC Components include the System Control Module (SCM), Packet Interface Module (PIM) & Media Conversion Module (MCM)
There are 2 main SBC network designs: Access and Peering, each with different external network interfaces.
The Nokia Access SBC design utilizes Firewall, Session Controller, SIP Front End Distributor, Diameter Front End Distributor, Border Gateway Controller, System Control Module, Packet Interface Module, Media Conversion Module, OAM, and Internal CCF.
The Nokia Peering SBC design utilizes a similar VNF structure but separates access network interfaces from peering network interfaces.
Several design considerations must be taken into account when designing an SBC network. They include using VMware to support X1 and X2 subnets, the limitation of 19K sessions per PIM, and how to install the Framework on the host.
The text outlines the number of required IPs for each VNF/service per external network, and the differences in OpenStack from both RMS and VMware deployment.
Several considerations with IP design are noted, including needing two ILO IPs and two host IPs for each RMS pair. ### Internal DNS Service for Signaling
SNS provides internal DNS service
Signaling does not need external IPs
Query FED (QFED) in CFED provides DNS queries

### Connectivity IPs

Each Signaling floating IP requires a connectivity IP

### P-CSCFs

All P-CSCFs share the same published IP in SIG Untrusted network
One SIG Untrusted IP for all IMS services

### IBCF

IBCF (Inter-SBC Call Forwarding) does not need an external IP in SIG peering networks

### Charging

If charging is done using iCCF (Intelligent Charging Function), diameter Rf can be configured using the Signaling internal network without Rf going through DFED (Diameter Front End Distributor)
If external charging is also required, the Rf needs to be configured to use DFED
The CDR IP is mainly used for pulling CDR records from iCCF

### SBC BGC and BGW IP/Port Allocation in RMS Case

The table shows a design for BGC and BGW IP/Port allocation in an RMS case:
- VMG1 local IP & port: 192.168.1.101:2944, 192.168.1.102:2944, 192.168.1.103:2944, 192.168.1.104:2944
- VMG1 remote IP & port (sig MGC): 192.168.1.1:2944, 192.168.1.1:2945, 192.168.1.1:2946, 192.168.1.1:2947
- VMG2 local IP & port: 192.168.1.101:2945, 192.168.1.102:2945, 192.168.1.103:2945, 192.168.1.104:2945
- VMG2 remote IP & port (sig MGC): 192.168.1.2:2944, 192.168.1.2:2945, 192.168.1.2:2946, 192.168.1.2:2947
- VMG3 local IP & port: 192.168.1.101:2946, 192.168.1.102:2946, 192.168.1.103:2946, 192.168.1.104:2946
- VMG3 remote IP & port (sig MGC): 192.168.1.3:2944, 192.168.1.3:2945, 192.168.1.3:2946, 192.168.1.3:2947
- VMG4 local IP & port: 192.168.1.101:2947, 192.168.1.102:2947, 192.168.1.103:2947, 192.168.1.104:2947
- VMG4 remote IP & port (sig MGC): 192.168.1.4:2944, 192.168.1.4:2945, 192.168.1.4:2946, 192.168.1.4:2947
This design can be followed for separate H248 networks in non-RMS configurations

### Nokia SBC VNF Networking (Access SBC)

Uses OVS + Duplex SR-IOV mix
Provider Networks (OVS + SR-IOV):
- LI (X1, X2)
- OAM
- Media Trusted
- Media Untrusted
- SIG Untrusted
- SIG Trusted
Tenant Networks:
- Gm GRE tunnel
- X2 OVS
- SIG Internal
- H.248
- X2 SR-IOV
- Media TIPC
- Internal Datapath
- Inter-VM Provider Network
VNFCs:
- Signaling VNFC: Firewall and Front End Distributor, Session Controller, SIP Front End Distributor, Diameter Front End Distributor, Border Gateway, System Control Module, Packet interface Module
- Media VNFC: Media Conversion Module
- Operations VNFC: OAM, iCCF

### Nokia SBC VNF Networking (Peering SBC)

Uses OVS + Duplex SR-IOV mix
Provider Networks (OVS + SR-IOV):
- LI (X1, X2)
- OAM
- Media Trusted
- Media Untrusted
- SIG Untrusted
- SIG Trusted
Tenant Networks:
- X2 OVS
- SIG Internal
- H.248
- X2 SR-IOV
- Media TIPC
- Internal Datapath
- Inter-VM Provider Network
VNFCs:
- Signaling VNFC: Firewall and Front End Distributor, Session Controller, SIP Front End Distributor, Diameter Front End Distributor, Border Gateway, System Control Module, Packet interface Module
- Media VNFC: Media Conversion Module
- Operations VNFC: OAM, iCCF

### Nokia SBC VNF Networking - Neutron Duplex SR-IOV Setup

Focuses on Duplex SR-IOV Networks
Provider Networks (OVS + SR-IOV):
- X2 SR-IOV (for Media Trusted, Media Untrusted, SIG Untrusted)
For each external interface, pre-create two neutron networks with the same VLAN but different physnet mapping to different host NIC ports

RMS SBC Configuration

RMS SBC configuration can be scaled from 0.128 million subscribers to 2 million subscribers
The number of bearers per subscriber is constant at 2
The number of sessions per second ranges from 8 thousand to 123 thousand
OAM, SC, DFED, BGC, CFED, FW, iCCF, SCM, and MCM are all VM/VNFC types/names
The number of each VM/VNFC type/name scales as subscriber counts increase
For each type/name, the number of each virtual machine scales up as the number of subscribers increases

RMS SBC Networking

RMS SBC uses a layered network architecture
There are internal and external networks
External networks consist of untrusted bearers and untrusted SIP networks
Internal networks consist of trusted bearers, trusted SIP networks, redundant internal networks, and dedicated peering networks
The VMs are connected to the network using NICs
The VMs use bond3 to connect to the external networks
An Artesyn w/DSPs card is used as the hardware for the internal DSP

RMS Host Level VLAN Tagging for OAM

The OAM VM is VLAN tagged with VLAN 120
The OAM LI is VLAN tagged with VLAN 122
The OAM VM has a direct connection for signaling to the rest of the network
The OAM VM connects to the network using NICs
The VMs use bond3 to connect to the external networks

RMS SBC Connectivity and Port Assignment

The text provides a general overview of RMS SBC network connectivity and port assignment for different RMS versions, including R3.x and R17.5 (a.k.a 4.0)
It refers to changes that have been made between R3.x and R17.5.
It does not necessarily specify what those changes are.

RMS SBC Signaling and Media Separation

The text provides a general overview of RMS SBC signaling and media separation in R17.5.
It does not necessarily explain how signaling and media separation are implemented.

RMS 17.5 Media-Only RMS Networking

In a Media-Only deployment, the RMS can send and receive media-related traffic without signaling
This scenario uses a separate external interface for H248 signaling.
The OAM VM is connected to this interface via a direct connection.

RMS 17.5 Signaling-Only RMS Networking

In a Signaling-Only deployment, the RMS can send and receive signaling traffic without media-related traffic
This scenario uses a separate external interface for H248 media.
The OAM VM is connected to this interface via a direct connection.

SBC DNS, NTP, and OAMP

The text documents how SBC uses DNS and ENUM
The iSBC (Intelligent SBC) uses QFED (Query FED) to query DNS/ENUM
QFED is part of the CFED function.

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Description

This quiz covers the essential components and designs of the Nokia SBC network, including the System Control Module, Packet Interface Module, and Media Conversion Module. It discusses the two main network designs: Access and Peering, focusing on their different interfaces and design considerations. Key aspects such as VNF structures, session limitations, and installation processes are also explored.