Enterprise Edge Communications Manager. Data Capabilities

(1)

Enterprise Edge Communications

Manager

Data Capabilities

(2)

Data Module Objectives

After the completion of this module you will be able to

describe the following Data components of the

Enterprise Edge Communications Manager:

• Integrated Quality of Service IP Router

• WAN Protocols

• WAN Access Services

• LAN Services

• Network Services

• IP Services

(3)

Integrated Quality of Service IP Router- Protocols

Integrated QoS IP Router

• Diffserv queuing

• IPX support via LAN segment

Static Routing:

• Individual Routing Table entries programmed for each route • Used for router deployment in star-topology and limited

mesh-networks.

RIP v1&v2 (Routing Information Protocol):

• Routing Table entries are dynamically updated in each router

using a distance vector algorithm.

• Used for router deployment in star-topology networks and

larger mesh-networks.

• Used for routed networks with less than 16 hops

Edge-to-Edge

OSPF (Open Shortest Path First):

• Routing Table entries are dynamically updated in each router

using a link state algorithm.

(4)

WAN Protocols

• Frame Relay (FR)

—

Cost effective

—

Widely available

• Point-to-Point (PPP)

—

The workhorse connection for TCP/IP and IP networks

• MultiLink Point-to-Point (MLPP)

—

Compliments PPP service by enabling the router to service a

PPP connection spread over more than one physical interface

(5)

Wide Area Network (WAN) Connection

(6)

Net Link Manager

• Promotes the resiliency and redundancy of the Enterprise Edge

Communications Manager

• By monitoring the primary WAN link status

• The router provides PPP dial back-up capabilities via

•

V.90 modem

•

ISDN BRI or PRI B channels

(7)

WAN Backup with Dial-on-Demand

WAN T-1 WAN T-1

Frame Relay

PSTN ISDN BRI/PRI

•

Monitors primary WAN T-1 to Frame Relay

•

The WAN T-1 FR link fails and automatically the back-up V.90 modem or ISDN BRI/PRI

connection is established

•

The WAN T1 FR service is restored and automatically the back-up V.90 or ISDN

BRI/PRI connection is terminated

(8)

Corporate Network via Dial-on-Demand

T-1 T-1

PSTN

To Digital Trunk Media Bay Module (Voice T -1)

•

Dial-on-Demand to other sites

•

Dedicated T-1/FT-1 is not needed for Corporate Network

•

Remote sites can be accessed through voice PRI on a dial-up basis

•

Dial up occurs automatically at 64K or N*64K (Check w/your service provider)

(9)

Internet Access via Dial-on-Demand

PRI

Internet

PSTN

To Digital Trunk Media Bay Module (Voice T -1)

•

Dedicated T-1/FT-1 is not needed for Internet access

•

Internet can be accessed through channels of voice PRI on a dial up basis

•

Dial up occurs automatically at 64K or N*64K (Check w/your service provider

•

Multiple users can access the Internet simultaneously

(10)

LAN Connections

• The Enterprise Edge

(11)

Built-in DHCP server

• Allows for easier configuration of customers networks. • Administered through Unified Manager.

Built-in DHCP Relay Agent

• Allows pass through of DHCP traffic to and from LAN connected devices

Dynamic Host Configuration Protocol (DHCP)

(12)

Domain Name Server (DNS) & Web Caching

Web Caching:

• Stores previously “surfed” web

pages on the Enterprise Edge to reduce WAN traffic

• Managed via Unified Manager

DNS Caching:

• Allows domain names to be resolved on

the Enterprise Edge Communications Manager via Unified Manager

• Reduces traffic on the WAN by caching

previously looked up names

• Proxy provides higher degree of security

(13)

Integrated Voice over Internet Protocol Gateway

H.323 v2 VoIP compliant

• Industry standard codecs - G711

- G.723.1

- G.729 with Annex B (Silence Suppression) and Annex A Interworking • Voice Codecs run on DSP hardware to ensure voice quality

- Offload processing intensive tasks from processor and Windows NTE

Inter-working

• Meridian 1 Internet Telephony Gateway (ITG) and Peer-to-Peer • H.323 client devices treated as IP trunk calls

- e.g. NetMeeting Client

VoIP Trunks are treated as simply another Route

• Dynamic routing via IP or PSTN based on Routing codes or number

dialed (Automatic Route Selection)

• User flexibility in route choice or by administration

• Fallback to PSTN on call setup via Least Cost Routing during network

congestion

(14)

Customer controlled QoS

• Thresholds set in administration on per link basis

- translation of Delay and Packet Loss to “Measure of Service” (MoS) on scale of 1-5

QoS Operation

• MoS performance verified for each link prior to call setup

• If MoS threshold not met, call is routed to next least cost route (i.e. PSTN)

Data (VoIP) Corporate Data (VoIP) Frame Relay

1. Network is checked prior to call setup

2. Calls automatically overflow

(15)

Rock-Solid Security

Five Proxy Firewall Security Systems

• HTTP, SOCKS, IPX-WINSOCK, NAT and DNS

Single IP address to the Internet (Network

Address Translation-NAT)

• Blocks all other Internet packets from entering network

Private LAN becomes invisible to Internet

• Virtually ‘unhackable’

LAN Internet TCP/IP

(16)

Routing

IP, IPX

Protocols:

Static, RIP1, RIP2, OSPF

WAN access:

•Dial up on demand using PSTN •Nail up via X21 & V.35

PPP

CHAP, PAP

Frame Relay:

1008 DCLIs

Performance

120 kps, LAN to LAN

Firewall:

•NAT

•IP Packet Filtering by: TCP port, UDP port, IP

Protocol ID, Source address, Destination address,