Guest

Support

Tested Deployments and Site Models

  • Viewing Options

  • PDF (4.0 MB)
  • Feedback
Tested Deployments and Site Models

Table Of Contents

Tested Deployments and Site Models

Purpose of Solution Tests

Multisite Distributed Deployment Options

North America Site Models

Multisite Centralized, Clustering over the WAN with Unified SRST

Very Large Campus with Clustering over the WAN

Large SIP Site

Cisco Unified Communications Manager Business Edition Site with Unified SRST

Cisco Unified Communications Manager Business Edition Site

Small Campus SIP Unified Communications Manager Express Site

Small Campus H.323 Unified Communications Manager Express Site

Cisco Unified Communications Manager Release 7.1(3) Interoperability Site

Cisco Unified Communications Manager Release 6.1(4) Interoperability Site

Europe and Emerging Markets Site Models

Large Multisite Centralized with Unified SRST

Medium Site Centralized with Unified SRST

Medium Site Dual-stack Centralized with Unified SRST

Small Site (MAD)

Cisco Unified Communications Manager Interoperability Site Centralized with Unified SRST

Cisco Unified Communications Manager Interoperability Site (Cisco SIP CME Site Aggregated by Cisco Unified SIP Proxy)

Small Campus Multisite H.323

Mid-Market Multi-Site Centralized


Tested Deployments and Site Models


Cisco Unified Communications Release 8.0(2) testing for IP telephony was designed to test the hardware and software components that work together in a multisite distributed IP telephony deployment.

For this testing, the following site models were created. Each site model was designed to test a specific set of features and interactions. The site models can be used in various combinations to create different versions of a multisite distributed deployment model.

North America site models:

Multisite Centralized, Clustering over the WAN with Unified SRST (SFO-ORD)

Very Large Campus with Clustering over the WAN (SJC-RFD)

Large SIP Site (DFW)

Cisco Unified Communications Manager Business Edition Site with Unified SRST (AZO)

Cisco Unified Communications Manager Business Edition Site (ACY)

Small Campus SIP Unified Communications Manager Express Site (ATL)

Small Campus H.323 Unified Communications Manager Express Site (YYZ)

Cisco Unified Communications Manager 7.1(3) Interoperability Site (RDU)

Cisco Unified Communications Manager Release 6.1(4) Interoperability Site (NYC)

Europe Union and Emerging Markets (EUEM) site models

Large Multisite Centralized with Unified SRST (CDG)

Medium Site Centralized with Unified SRST (GVA)

Medium Site Dual-stack Centralized with Unified SRST (BRU)

Small Site (MAD)

Cisco Unified Communications Manager Interoperability Site Centralized with Unified SRST (LGW)

Cisco Unified Communications Manager Interoperability Site (Cisco SIP CME Site Aggregated by Cisco Unified SIP Proxy) (RKV)

Small Campus Multisite H.323 (WAW)

Mid-Market Multi-Site Centralized Site (MAN)

This topic describes each site model.

For additional guidelines, recommendations, and best practices for implementing enterprise networking solutions, refer to the Cisco Solution Reference Network Design (SRND) guides and related documents, which are available at this URL:

http://www.cisco.com/go/srnd

For a list of the release versions of the components used in the site models, see System Release Notes for IP Telephony: Cisco Unified Communications System, Release 8.0(2)

This topic includes the following sections:

Purpose of Solution Tests

Multisite Distributed Deployment Options

North America Site Models

Europe and Emerging Markets Site Models

Purpose of Solution Tests

An efficient, effective, and reliable IP telephony solution requires many interrelated hardware and software components. The site models that are described in this manual provide you with models and guidance as you implement an IP telephony system for your organization. Cisco has selected, installed, configured, and tested hardware and software designed to work together seamlessly and to provide a complete and optimized IP telephony solution.

Each site model addresses some or all of the following issues:

End-to-end functionality

Operability in a real-world environment

Scalability

Stability

Stress

Load

Redundancy

Reliability

Usability

Availability

Installability

Upgradeability

Serviceability

Regression

Multisite Distributed Deployment Options

The site models within each test group (North America and EUEM) can be implemented in various combinations to create deployment models to meet the needs of a wide range or organizations.

For detailed information about the sites used in North America deployments, see the North America Site Models.

For detailed information about the sites used in EUEM IP telephony deployment, see the Europe and Emerging Markets Site Models.

The Solution integration test bed topologies diagrams for NA and EUEM for IP telephony tested in Cisco Unified Communications Release 8.0(2) is available from the Resource Library tab of the Technical Information Site.

North America Site Models

Eleven site models were created and tested for Cisco Unified Communications Release 8.0(2) testing for North America IP telephony. Each site model tested specific hardware and software components, features, functions, protocols, and related items.

A site model includes one or more sites. Each site has a three-letter name (for example, SFO, ORD, and SJC). Examples throughout this manual refer to these site names.

The following sections describe each site model in detail. Each section includes an explanation of the design characteristics of the site model, and includes a table that lists the hardware and software components used in the model. The tables contain the following information for each component:

Component—Hardware or software component

Description—Information such model number, release number, protocol, and hardware platform

Qty.—Quantity of the component used in the model

Table 1 lists the site models and references to sections that provide detailed information.


Multisite Centralized, Clustering over the WAN with Unified SRST

The Multisite Centralized, Clustering over the WAN with Unified SRST site model represents a very large financial company deployment in which two sites, San Francisco (SFO) and Chicago (ORD), are used to cluster Cisco Unified Communications Manager over an IP WAN. In this model, half of the cluster resides in SFO and the other half in ORD. These sites provide centralized call processing to remote Cisco Unified Survivable Remote Site Telephony (Unified SRST) sites. Communications with remote sites takes place over the IP WAN.

If either the central site or the IP WAN goes down, remote sites can continue to have service through Unified SRST running on Cisco IOS gateways. In addition, remote sites can place calls over the PSTN if the IP WAN becomes temporarily oversubscribed.

The cluster is also enabled for IPv6. SCCP endpoints have been added in both the SFO and ORD Head Quarter locations to exercise IPv6-based calls. Additionally, the ORD datacenter is now completely on Cisco Unified Computing System (UCS). This includes the CUCM and Unity Connection nodes.

SFO and ORD sites represent geographically redundant data centers and are the hub sites for remote Unified SRST sites. Unified SRST sites include H.323 and MGCP 28xx, 29xx, 38xx, 39xx, and 72xx gateways. The WAN consists of T1 frame relay links.

The tested Multisite Centralized site model has the following design characteristics:

Cisco Unified Communications Manager and Cisco Unity Connection reside at the central site

Cisco Unified Communications Manager clustered over the WAN

Centralized dial plan and administration

100 remote sites

Unified SRST for remote sites

17,840 SCCP endpoints

Figure 1 provides an overview of the Multisite Centralized, Clustering over the WAN with Unified SRST site model.

Figure 1 Multisite Centralized, Clustering over the WAN with Unified SRST Site Model

Figure 2 shows the Unified Computing System B-series Server chassis blade layout.

Figure 2 UCS B-series Server Chassis Blade Layout

Table 2 lists the hardware and software components used in the Multisite Centralized, Clustering over the WAN with Unified SRST site model.

Table 2 Multisite Centralized, Clustering over the WAN with Unified SRST Components 

Component
Description
Qty.

Catalyst Voice Gateways

Catalyst 6509 Switch with Supervisor 2

2

Cisco 6608

3

Cisco Communication Media Module (CMM)

7

6-port T1 Interface Port Adaptor for CMM

21

FlexWAN module with 2 Port Adaptor slots

2

48-Port, RJ-45, 10/100BaseTX Ethernet with in-line power

2

Central Core Switch

Catalyst 6506 Switch with Supervisor 2

2

Cisco Unified Communications Manager servers

Cisco Unified Computing System

5

Cisco MCS 7845 Unified Communications Manager Appliance

4

Cisco Unity Connection

Cisco Unified Computing System

2

Cisco MCS 7845 Unified Communications Manager Appliance

1

Cisco Unified Presence Servers

Cisco MCS 7845 Unified Communications Manager Appliance

2

Music on hold server

Cisco Unified Computing System

1

Cisco MCS 7845 Unified Communications Manager Appliance

1

TFTP server

Cisco Unified Computing System

1

Cisco MCS 7845 Unified Communications Manager Appliance

1

Router

Cisco 2851

86

Cisco 3725

4

Cisco 3745

4

Cisco 3825

2

Cisco 3845

8

Cisco 7206-VXR

2


Very Large Campus with Clustering over the WAN

The Very Large Campus with Clustering over the WAN site model represents a very large campus in which two sites, San Jose (SJC) and Rockford (RFD), are used to cluster Cisco Unified Communications Manager over an IP WAN. This site also supports RSVP cluster.

The Cisco Unified Communications Manager cluster in this site model consists of the following:

One publisher

Eight subscribers (four in each site)

Two music on hold servers (one in each site)

Two TFTP servers (one in each site)

This deployment model has the following characteristics:

Cisco Unified Communications Manager clustered over a WAN for redundancy, system scaling, and disaster recovery

Cisco Emergency Responder in redundant mode, with primary system at SJC and secondary system at RFD

12,308 SCCP end-points

Shared lines

In line power to IP phone sets

Single cable for connecting an IP phone and PC

Quality of service from the desktop

IP addressing for easy adds, moves, and changes

Cisco Adaptive Security Appliance (ASA) to protect the data center

Videoconferencing systems for ad-hoc SCCP video conferences

Dedicated gatekeeper cluster to handle Unified MeetingPlace call handling, as well as handling video endpoints and Unified MeetingPlace video administration

Figure 3 shows the topology of the Very Large Campus with Clustering over the WAN site model.

Figure 3 Very Large Campus with Clustering over the WAN Site Model

Table 3 lists the hardware and software components used in the Very Large Campus with Clustering over the WAN site model.

Table 3 Very Large Campus with Clustering over the WAN Components

Component
Description
Qty.

Access switch

Cisco Catalyst 6509 with dual Supervisor 2

6

Cisco 3560

2

Analog gateway

Cisco VG248

3

Cisco VG224

1

ASR server

Cisco MCS 7845 Unified Communications Manager Appliance

1

Cisco Unified Communications Manager server

Cisco MCS 7845 Unified Communications Manager Appliance

7

Cisco Unified Computing System C-Series

2

Cisco Unified Presence server

Cisco MCS 7845 Unified Communications Manager Appliance

2

Cisco Contact Center Express Servers

Cisco MCS 7845 Unified Communications Manager Appliance

2

Cisco Unified MeetingPlace IP GW Server

Cisco MCS 7845 Unified Communications Manager Appliance

2

Cisco Unified MeetingPlace server

Cisco MCS 7845 Unified Communications Manager Appliance

1

Cisco Unified MeetingPlace web conferencing server

Cisco MCS 7845 Unified Communications Manager Appliance

2

Cisco Unity Unified Messaging server

Cisco MCS 7845 Unified Communications Manager Appliance

3

Core switch

Cisco Catalyst 6506 with Supervisor 2 and 2-port DS3 module

2

Data center switch

Cisco Catalyst 6509 with Supervisor 2

1

Cisco3750

1

Cisco3550

4

Distribution switch

Cisco Catalyst 6509 with SUP720

2

DNS/DHCP server

Cisco MCS 7845 Unified Communications Manager Appliance

2

Domain controller

Cisco MCS 7845 Unified Communications Manager Appliance

2

Exchange 2000 server

Cisco MCS-7845 4-EVV1 Unified Communications Manager Appliance

3

Cisco MCS-7845H-2.4-ECS2 Unified Communications Manager Appliance

2

Gatekeeper

Cisco 3845

2

Gateway

Cisco 3845 (H.323)

3

Cisco 3725 (MGCP)

2

Cisco 3745 (SIP)

1

Music on hold (MOH) server

Cisco MCS 7825 Unified Communications Manager Appliance

2

T1 gateway

Cisco Catalyst 6608 ports

160

TFTP server

Cisco MCS 7845 Unified Communications Manager Appliance

2

Video endpoint

Tandberg T1000 (SCCP)

1

Tandberg T1000 (H.323)

1

Polycom VSX-7000 (H.323)

1

Cisco Unified Video Advantage

3

Cisco 7985

1

WAN router

Cisco 7206 VXR

1

Wireless infrastructure

Cisco AP1200

3

Wireless phone

Cisco Unified Wireless IP Phone 7920

10

Unified SRST site (SIP)

Cisco 3845

1

Cisco MCS 7845 Unified Communications Manager Appliance

2


Large SIP Site

The Large SIP Site consists of one site called Dallas (DFW). This site includes a Cisco Unified Communications Manager cluster that includes the following:

One publisher

Four subscribers

MOH and TFTP servers (one each)

The Large SIP Site model also includes Cisco Unity for voice messaging.

The site has 10,000 SIP endpoints and is setup with WAN connectivity to allow communication with other sites. Additionally, SIP gateways are used, to provide connectivity to the PSTN network

Figure 4 shows the topology of the Large SIP Site model.

Figure 4 Large SIP Site Topology

Table 4 lists the hardware and software components used in the Large SIP Site model.

Table 4 Large SIP Site Model Components 

Component
Description
Qty.

Cisco Unified Communications Manager server

Cisco MCS 7845 Unified Communications Manager Appliance

6

Cisco Unity server

Cisco MCS 7845-ECS1 Unified Communications Manager Appliance

2

Distribution switch

Cisco 3750

1

Distribution switch

Cisco 3550

1

DNS/DHCP server

Cisco MCS 7825 with 2000.4.2sr2 OS Unified Communications Manager Appliance

1

Domain controller

Cisco MCS 7845-EVV1 Unified Communications Manager Appliance

1

Exchange server

Cisco MCS 7845-ECS2 Unified Communications Manager Appliance

2

Firewall

ASA 5540

2

Gateway

Cisco 3745 (H.323)

1

Cisco 3745 (MGCP)

1

Video endpoint

Tandberg T1000 (SCCP)

2

Tandberg T1000 (H.323)

1

Polycom VSX-7000 (SIP)

2

Cisco Unified IP Phone 7985

1

Cisco Unified Video Advantage

2

WAN router

Cisco 3845

1

Wireless phone

Cisco Unified Wireless IP Phone 7920

15


Cisco Unified Communications Manager Business Edition Site with Unified SRST

The Cisco Unified Communications Manager Business Edition with Unified SRST site model with co-resident Cisco Unity Connection represents small to medium business deployments with remote sites over the IP WAN. The site is called Kalamazoo (AZO).

If either the central site or the IP WAN goes down, remote sites can continue to have service through Unified SRST running on Cisco IOS gateways. In addition, remote sites can place calls over the PSTN if the IP WAN becomes temporarily over-subscribed. The Unified SRST sites include H.323 and MGCP of 28xx and 38xx gateways. The WAN consists of T1 frame relay links.

The tested AZO site model has the following design characteristics:

Cisco Unified Communications Manager (Business Edition) co-resident with Cisco Unity Connection, and Cisco Unified MeetingPlaceExpress residing at the central site

Centralized dial plan and administration

5 remote sites with call handling and 15 more remote sites for additional configuration purpose

500 SCCP endpoints

shows the topology of the Cisco Unified Communications Manager Business Edition with Unified SRST site model.

Figure 5 shows the topology of the Cisco Unified Communications Manager Business Edition with Unified SRST site model.

Figure 5 Unified Communications Manager Business Edition with Unified SRST Topology

Table 5 lists the hardware and software components used in the Cisco Unified Communications Manager Business Edition with Unified SRST site model

Table 5 Cisco Unified Communications Manager Business Edition with Unified SRST Components

Component
Description
Qty.

Cisco Unified Communications Manager Business Edition

Cisco MCS 7828 Unified Communications Manager Appliance

1

MeetingPlace Express

Cisco MCS 7825 Unified Communications Manager Appliance

1

WAN router

Cisco 2811

2

Core Switch

Cisco 3750

2

Access Switch

Cisco 3750

1

Datacenter Switch

Cisco 3750

1

Gateways

Cisco 2811

1

Cisco 2801

1

SRST Routers

Cisco 2851

2

Cisco 2801

1

Cisco 3825

1

Cisco 2811

17


Cisco Unified Communications Manager Business Edition Site

The Cisco Unified Communications Manager Business Edition with co-resident Cisco Unity Connection represents small to medium business deployments. This site is specifically used for testing InterCluster Trunk (ICT) calls to/from the Cisco Unified Communications Manager Business Edition Site with Unified SRST (AZO) cluster. The site is called Atlantic City (ACY).

Figure 5 shows the topology of the Cisco Unified Communications Manager Business Edition site model.

Table 6 Cisco Unified Communications Manager Business Edition Site Components

Component
Description
Qty.

Cisco Unified Communications Manager Business Edition

Cisco MCS 7828 Unified Communications Manager Appliance

1

WAN router

Cisco 2811

1

Datacenter Switch

Cisco 3750

1


Small Campus SIP Unified Communications Manager Express Site

The Small-Campus SIP Site model consists of one site called Atlanta (ATL). This site includes:

Two Cisco Unified Communications Manager Express routers

100 SIP endpoints

This site communicates with Cisco Unified Communications Manager clusters in other sites using a SIP trunk through Cisco Unified Border Element (CUBE).

Figure 6 shows the topology of the Small-Campus SIP Site model.

Figure 6 Small -Campus SIP Site Topology

Table 7 lists the hardware and software components used in the Small-Campus SIP Site model.

Table 7 Small-Campus SIP Site Components 

Component
Description
Qty.

Cisco Unified Communications Manager Express

Cisco 3825

2

Cisco Unified Communications Manager Express with advanced integration module AIM-CUE

Cisco 3845

1

Cisco Unified IP Phone

Cisco Unified IP Phone 7940G

Cisco Unified IP Phone 7960G

12

Site Switch (shared by all sites)

Cisco Catalyst 3550

1

Wireless phone

Cisco Unified Wireless IP Phone 7920

2


Small Campus H.323 Unified Communications Manager Express Site

The Small-Campus H.323 Unified Communications Manager Express Site model consists of one site called Toronto (YYZ). This site includes:

Two Cisco Unified Communications Manager Express routers

One H.323 gatekeeper

265 SCCP Endpoints

The H.323 gatekeeper in YYZ provides the connectivity to other Cisco Unified Communications Manager clusters.

Figure 6 shows the topology of the Small-Campus H.323 Unified Communications Manager Express Site model.

Table 8 lists the hardware and software components used in the Small-Campus H.323 Unified Communications Manager Express Site model.

Table 8 Small-Campus H.323 Unified Communications Manager Express Site Components 

Component
Description
Qty.

Cisco Unified Communications Manager Express

Cisco 3825

2

Gatekeeper

Cisco 3745

1

IP-to-IP gateway

Cisco 3745

1

Site switch (shared by all sites)

Cisco 3550

1


Cisco Unified Communications Manager Release 7.1(3) Interoperability Site

In the Cisco Unified Communications Manager Interoperability Site model for North America, one of the sites is called Raleigh (RDU). This site was designed to test interoperability between other Cisco Unified Communications Managers at version N with its own version at N-1.

One publisher/TFTP/MOH Server

One subscriber

This site supports a mix of 1000 SIP and SCCP endpoints.

Figure 7 shows the topology of this site.

Figure 7 Cisco Unified Communications Manager Release 7.1(3) Interoperability Site Topology

Table 9 lists the hardware and software components used in this model.

Table 9 Cisco Unified Communications Manager Release 7.1(3) Interoperability Site Components 

Component
Description
Qty.

Cisco Unified Communications Manager server

Cisco MCS 7835-H1 Unified Communications Manager Appliance

2

Distribution switch

Cisco 3524

1

Gateway

Cisco 2851 (MGCP)

1

Cisco 3725 (DSP Resources)

1

Cisco 3725 (H.323)

1

WAN router

Cisco 2821

1


Cisco Unified Communications Manager Release 6.1(4) Interoperability Site

In the Cisco Unified Communications Manager Interoperability Site model for North America, one of the sites is called New York (NYC). This site was designed to test interoperability between other Cisco Unified Communications Managers at version N with its own version at N-2.

This site includes a Cisco Unified Communications Manager cluster that includes the following:

One Publisher/TFTP/MOH server

One subscriber

This site supports 1000 SCCP endpoints. Figure 8 shows the topology of this site.

Figure 8 Cisco Unified Communications Manager Release 6.1(4) Interoperability Site Topology

Table 10 lists the hardware and software components used in the Cisco Unified Communications Manager Release 6.1(4) Interoperability Site.

Table 10 Cisco Unified Communications Manager Release 6.1(4) Interoperability Site Components 

Component
Description
Qty.

Cisco Unified Communications Manager server

Cisco MCS 7825 Unified Communications Manager Appliance

2

Gatekeeper

Cisco 3725

1

Gateway

Cisco 3725 (H.323)

1

Site switch

Cisco 3550

1

WAN router

Cisco 3725

1


Europe and Emerging Markets Site Models

Eight site models were created and tested for Cisco Unified Communications Release 8.0(2) testing for Europe and Emerging Markets (EUEM) IP telephony. Each site model tested specific hardware and software components, features, functions, protocols, and related items.

A site model includes a site with a three-letter name (for example, CDG, GVA, and MAD). Examples throughout this manual refer to these site names.

The following sections describe each site model in detail. Each section includes an explanation of the design characteristics of the site model, and includes a table that lists the hardware and software components used in the model. The tables contain the following information for each component:

Component—Hardware or software component

Description—Information such model number, release number, protocol, and hardware platform

Qty.—Quantity of the component used in the model

Table 11 lists the site models and references to sections that provide detailed information.


For an illustration showing how these site models were deployed for testing, go to the Resource Library tab of the Technical Information Site.

Large Multisite Centralized with Unified SRST

The Large Multisite Centralized with Unified SRST site model consists of one site called Paris (CDG). This site model represents an international deployment with up to 21 remote sites deployed across various countries. It includes Cisco Unity Connection and third-party components. Cisco Unified Communications Manager uses QSIG, H.323, and SIP to interoperate between sites. Remote sites are interconnected through the WAN and all are RSVP-enabled to the central site. For Geneva (GVA) and Paris (CDG), inter cluster RSVP is enabled.

In this model, a Cisco Unified Communications Manager cluster serves 6000 phone in local and remote locations, with all endpoints and gateways fully encrypted (RTP and signalling). PBXs that support the QSIG ISO and QSIG ECMA variants connect to this cluster through direct QSIG links. The Cluster connects to the rest of the network through MPLS WAN networks.

Calls between the CDG site, the LGW site, and the MAD site are provided by H.323 intercluster trunks. Cisco Unity Connection provides voice messaging. PBX users access voice messaging features through the QSIG trunks to Cisco Unified Communications Manager.

Access to the PSTN for normal off-net calls is provided by ten E1 ETSI PRI links to the PSTN. Remote sites have either centralized breakout to the PSTN or local PSTN breakout using E1 PRI, BRI, or FXO connections. PSTN access is controlled by Cisco Unified Communications Manager using MGCP, H.323, or SIP. Unified SRST is used in each remote site.

Access to the SIP network is provided through a SIP trunk to a remote Cisco Unified SIP Proxy (CUSP). Access to third-party services such as operator console, if available, is provided locally. Some of the sites will also have video endpoints and Cisco Unified Videoconferencing Gateways, and remote QSIG PBXs.

Cisco Unified Communications Integration™ for Microsoft Office Communicator and Cisco Unified Presence Server are tested as part of this site model. Cisco Unified Communications Integration™ for Microsoft Office Communicator provides interoperability with Microsoft Office Communicator Server 2007 (OCS) R2 version with Microsoft Office Communicator (MOC) clients.

The Large Multisite Centralized with Unified SRST site model have these design characteristics:

Cisco Unified Communications Manager cluster for redundancy and system scaling

Inline power to IP phones

Encryption of RTP, SIP, SCCP, and H.323 where available.

SIP and SCCP phones

Cisco Unified Communications Integration™ for Microsoft Office Communicator with Microsoft OCS 2007 R2 version with Microsoft Office Communicator clients

Cisco Unified Enterprise Attendant Console Windows 2008 server on Cisco MCS 7825 Unified Communications Manager Appliance

Cisco Unified Personal Communicator

Quality of service from the desktop

Video phones, MCUs, and Cisco Unified Videoconferencing H.320 Gateways in local and remote sites

Locally connected third-party applications for attendant console

Cisco Unity Connection connected through an SCCP link to Cisco Unified Communications Manager

PBX connectivity to Cisco Unified Communications Manager and Cisco Unity through Cisco Unified Communications Manager using a direct QSIG trunks

QSIG feature transparency between PBXs to PBX, PBX to Cisco Unified Communications Manager, Cisco Unified Communications Manager to PBX, and Cisco Unified Communications Manager to Cisco Unified Communications Manager clusters

Cisco IME server to transport all Cisco IME calls over Cisco IME SIP trunks.

Cisco Unified Communications Manager Session Management Edition to consolidate SIP trunks and application interfaces across multi vendor voice deployments

Service Advertisement Framework (SAF) to advertise the DN pattern of Unified CM and Unified CME through Call Control Discovery so that other call control entities have access through the SAF network, thereby adapting their routing behavior.

Central and remote PSTN breakout for remote sites with MGCP PRI, BRI, and FXO backhaul, and SIP and H.323 control

Cisco RSVP Agent

Figure 9 shows the topology of the Large Multisite Centralized with Unified SRST Site model.

Figure 9 Large Multisite Centralized with Unified SRST Site Topology

Table 12 lists the hardware and software components used in the Multisite Centralized, Clustering over the WAN with Unified SRST site model.

Table 12 Large Multisite Centralized with Unified SRST Site Model Components 

Component
Description
Qty.

Access Catalyst switch

WS-C6509-E

3

Analog gateway

Cisco ATA 188 Analog Telephone Adaptor

3

Cisco Unified Communications Manager server

Cisco MCS 7835 Unified Communications Manager Appliance

131

Firewall-ASA

Data center - 5510

1

Cisco IME - 5520

1

Cisco Unified SRST routers

Cisco 2801

4

Cisco 2811

3

Cisco 2821

3

Cisco 2851

4

Cisco 3825

3

Cisco 3845

3

Cisco 7200

1

Cisco Unified Contact Center Express

Cisco MCS 7835 Unified Communications Manager Appliance

2

Cisco Unified IP Phone

Cisco Unified IP Phone 7971G-GE

10

Cisco Unified IP Phone 7970G

10

Cisco Unified IP Phone 7960G

20

Cisco Unified IP Phone 7940G

10

Cisco Unified IP Phone 7936

4

Cisco Unified IP Phone 7937

2

Cisco Unified IP Phone 7961G/7961G-GE

5

Cisco Unified IP Phone 7941G/7941G-GE

5

Cisco Unified IP Phone 7911G

10

Cisco Unified IP Phones models 6921, 6941, 6961

5

Cisco IP Communicator

2

Cisco Unity Connection

Cisco MCS 7845 Unified Communications Manager Appliance

2

Core Catalyst chassis

WS-C6506-E

2

E1 gateway card

Cisco 3845

1

Gateway

Cisco 2801

2

Cisco 2811

2

Cisco 2821

2

Cisco 2851

2

Cisco 3825

2

Cisco 3845

2

PSTN Gateway

Cisco 3845

3

Inline power IU switch

WS-C3550-24PWR-SMI

3

WS-C3750-24PS-S

3

WS-C3750-48PS-S

2

Router

Cisco 7206-VXR

1

Video conferencing

Cisco Unified Videoconferencing MCU 3545

2

Video endpoint

Cisco Unified Video Advantage

4

Cisco 7985

5

Cisco Unified Communications Integration™ for Microsoft Office Communicator

6

Cisco Unified Personal Communicator

2

Cisco Unified IP Phones models 8961

5

Cisco Unified IP Phones models 9951and9971

5

Video H.320 Gateway BRI

IPVC-3521-GW-4B

2

Video H.320 Gateway PRI

IPVC-3526-GW-1P

2

Video MCU and Gateway

IPVC-3545-CHAS

1

1 Divided into two Unified Communications Manager clusters: one main cluster consisting of 11 servers and a second smaller cluster of two servers supporting the Unified Contact Center Express server and agent phones.


Medium Site Centralized with Unified SRST

The Medium Site model consists of one centralized site with three SRST remote sites called Geneva (GVA). In this model, a Cisco Unified Communications Manager cluster serves 2000 phones. The Cisco Unified Communications Manager cluster connects to the rest of the network through MPLS WAN networks.

A local Cisco Unity Connection provides voice messaging services for local PBX and Cisco Unified Communications Manager users. Access to the PSTN for normal off-net calls is provided by five E1 RTSI PRI links to the PSTN. Access to other sites and to services such as Cisco Unified MeetingPlace Express is provided by H.323 gatekeeper controlled trunks and an IP-to-IP gateway. Access to the SIP network is through a SIP trunk to a remotely located Cisco Unified SIP Proxy (CUSP). Third-party operator consoles are provided on Cisco Unified Communications Manager to serve local phones and to provide backup to the operator console in the CDG site.

The Medium Site model has these design characteristics:

Cisco Unified Communications Manager cluster for redundancy and system scaling

Inline power to IP phones

SIP and SCCP phones

Quality of service from the desktop

Locally connected third-party applications for attendant console, billing, and voice recording, if available

Cisco Unified Communications Integration™ for Microsoft Office Communicator with Microsoft OCS 2007 R2 version with Microsoft Office Communicator clients

Cisco Unified Personal Communicator

Cisco IME server to transport all Cisco IME calls over Cisco IME SIP trunks.

Cisco Unified Communications Manager Session Management Edition to consolidate SIP trunks and application interfaces across multi vendor voice deployments

Service Advertisement Framework (SAF) to advertise the DN pattern of Unified CM and Unified CME through Call Control Discovery so that other call control entities have access through the SAF network, thereby adapting their routing behavior.

Cisco RSVP agent is enabled

Figure 10 shows the topology of the EUEM Medium Site model (GVA).

Figure 10 EUEM Medium Site Topology

Table 13 lists the hardware and software components used in the Medium Site model.

Table 13 Medium Site Model Components 

Component
Description
Qty.

Access Catalyst switch

WS-C6509-E

2

Cisco Unified Communications Manager server

Cisco MCS 7835 Unified Communications Manager Appliance

3

ASA

Data center - ASA 5520

2

Cisco IME - ASA 5520

1

Cisco Unified IP Phone

Cisco Unified IP Phone 7971G-GE

2

Cisco Unified IP Phone 7970G

2

Cisco Unified IP Phone 7960G

2

Cisco Unified IP Phone 7940G

2

Cisco Unified IP Phone 7961G/7961G-GE

2

Cisco Unified IP Phone 7941G/79461G-GE

2

Cisco Unified IP Phone 7911G

2

Cisco Unified IP Phones models 6921, 6941, 6961

6

Cisco IP Communicator

1

Cisco Unity Connection

Cisco MCS 7845Unified Communications Manager Appliance

1

Gateways

Cisco 2811

1

Cisco 2851

1

Cisco 3825

1

PSTN Gateway

Cisco 3845

1

Video endpoint

Cisco Unified Video Advantage

1

Cisco 7985

1

Cisco Unified Communications Integration™ for Microsoft Office Communicator

1

Cisco Unified IP Phones models 8961

2

Cisco Unified IP Phones models 9951 and 9971

4

Inline power IU switch

WS-C3550-24PWR-SMI

1

WS-C3750-48PS-S

1

Router

Cisco 7206-VXR

1

RSVP Agent

Cisco 3825

1


Medium Site Dual-stack Centralized with Unified SRST

The Medium Site Dual-stack Centralized with Unified SRST (Brussels-BRU) consists of one site called Brussels (BRU). In this model, two servers—Cisco Unified Communications Manager 8.0 Linux based Unified CM clusters serve 1000 phone users in both local and remote locations.

A separate Cisco Network Registrar (CNR) server is used to provide DHCP IPv4/IPv6 addressing for the central site. It also acts as the DNS IPv6 and IPv4 for both the central and remote sites. This cluster is connected to the rest of the network through MPLS WAN networks.

Calls between this site and other sites (LGW and MAD) sites are made through the WAN with Annex M1 Inter Cluster Trunks. All the internal calls within the site are G.711 and all calls between sites are G.729.

Cisco Unity Connection server provides voice mail services to both Unified CM and remote users. Access to the PSTN for normal "off-Net" calls is provided by E1 ETSI PRI links to the PSTN.

The three remote sites are connected through a WAN link and they have location based CAC to the central site. PSTN access for these remote sites either have centralized breakout to the PSTN, or local PSTN breakout using E1 PRI, BRI, or FXO connections and are controlled by Unified CM using either MGCP, H.323, or SIP. Unified SRST is used in each remote site.

Some of the phones have security encryption. VG224 acts as dual-stack gateways and Cisco 2851 acts as analog SCCP gateway.

The LAN infrastructure of this site includes CAT4500 as distribution/core switch and Cisco 3750 and Cisco 3560 as access switches and both of them are dual-stack components.

The MTP component provides media stream conversion from IPv4 to IPv6 and vice versa. The CE router and the MTP component share the same hardware—Cisco 3845.

The CE router and the remote ISRs provides IPv6 to IPv4 tunneling over the WAN. One of the SRST remote has been enabled with HSRPv6 (active-active) and DHCPv6.

The Medium Site Dual-stack Centralized with Unified SRST (Brussels-BRU) Site model has these design characteristics:

For BRU Central Site:

Publisher (PUB), Subscriber (SUB), and Cisco Network Registrar (CNR)

Dual Stack LAN Infrastructure: Cat4500 with Sup VI (Distribution/Core) along with Cisco 3750 and Cisco 3560 (Access).

IPv4 GW: MGCP (ISR 3825)

IPv6 GWs: Analog SCCP GWs (ISR 2851), VG224

Application [IPv4]: Cisco Unity Connection

Security: sRTP/TLS on BRU site + remote (Not 100% of Phones)

Legacy/DS phones and SCCP IPv4 video phone.

CE Router + MTP [IPv4-IPv6] on the same ISR 3845 router.

WAN IPv4: CE router supports IPv6 over IPv4 tunneling across WAN

QSIG ICT to MAD (Non-DS site) and LGW (Interoperability site)

For BRU Remote:

Remote sites - H.323, MGCP and SIP IPv6 and provide location based CAC (No call counting) with different CODECs

IPv6 remote site has dual homing [Active/Active]

MGCP remote site to have CUE

Legacy / DS phones + SCCP IPv4 video phone

Security: sRTP/TLS (Not 100% of IP Phones)

Figure 11 shows the topology of the EUEM Small Site model.

Figure 11 Medium Site Dual-stack Centralized with Unified SRST Topology

Table 14 lists the hardware and software components used in the Medium Site Dual-Stack Centralized with Unified SRST model.

Table 14 Medium Site Dual-stack Centralized with Unified SRST Model Components 

Component
Description
Qty.

Access Catalyst switch

WS-C4507R

2

Cisco Unified Communications Manager server

Cisco MCS 7825 Unified Communications Manager Appliance

2

Cisco Unified IP Phone

Cisco Unified IP Phone 7971G-GE

2

Cisco Unified IP Phone 7970G

2

Cisco Unified IP Phone 7960G

2

Cisco Unified IP Phone 7940G

2

Cisco Unified IP Phone 7961G/7961G-GE

2

Cisco Unified IP Phone 7941G/7941G-GE

3

Cisco Unified IP Phones 6921, 6941, 6961

4

Cisco Unified IP Phone 8951

4

Video End Points

Cisco Unified IP Phones 9951 and 9971

5

Gateways

IPv4: MGCP (Cisco 3825)

1

IPv6: Analog SCCP GWs (Cisco 2851),

1

VG224

1

Unified SRST Routers

Cisco 2811

1

Cisco 2851

1

Cisco 3825

1

Cisco 3845

1

Inline power IU switch

WS-C3560E-24PD-S

2

WS-C3750G-24PS-S

3

WS-C3750G-48PS-S

1


Small Site (MAD)

The Small Site model for Europe and Emerging Markets consists of one site called Madrid (MAD). In this model, a Cisco Unified Communications Manager cluster serves 750 phones in a single campus. A PBX that supports the ISO QSIG variant connects to this cluster through direct QSIG links.

Cisco Unity Connection connects to the cluster through the QSIG-enabled intercloster trunk via the LGW site and provide voice messaging functions to PBX users and to Cisco Unified Communications Manager users. PBX users have access to Cisco Unified Communications Manager through a QSIG trunk.

The Cluster connects to the rest of the network through MPLS WAN networks. Calls between this site and other sites in the network are made through the WAN with two Annex M1 intercluster trunks to the CDG and LGW sites.

Access to the PSTN as a backup route to other sites and for normal off-net calls is provided by two E1 ETSI PRI links to the PSTN.

The Small Site model has these design characteristics:

Cisco Unified Communications Manager cluster for redundancy and system scaling

Inline power to IP phone sets

SIP and SCCP phones

Cisco Unified Communications Integration™ for Microsoft Office Communicator with Microsoft OCS 2007 R2 version with Microsoft Office Communicator clients

Quality of service from the desktop

Cisco Unity Connection, with the server located remotely and connected through QSIG and intercluster trunk to Cisco Unified Communications Manager

PBX connectivity to Cisco Unified Communications Manager, Cisco Unity Connection, and the rest of the network through Cisco Unified Communications Manager using a direct QSIG trunks

PBXs that support the QSIG ISO and QSIG ECMA variants connect to this cluster through direct QSIG links.

QSIG feature transparency between PBXs to PBX, PBX to Cisco Unified Communications Manager, Cisco Unified Communications Manager to PBX, and Cisco Unified Communications Manager to Cisco Unified Communications Manager clusters.

Figure 12 shows the topology of the EUEM Small Site model.

Figure 12 EUEM Small Site Topology

Table 15 lists the hardware and software components used in the EUEM Small Site model.

Table 15 EUEM Small Site Model Components 

Component
Description
Qty.

Access Catalyst switch

WS-C4506

2

Cisco Unified Communications Manager server

Cisco MCS 7825 Unified Communications Manager Appliance

1

Cisco Unified Computing System C210

1

ASA

Data center: Cisco 5520

1

Cisco IME: Cisco 5510

1

Cisco Unified IP Phone

Cisco Unified IP Phone 7971G-GE

2

Cisco Unified IP Phone 7970G

2

Cisco Unified IP Phone 7960G

2

Cisco Unified IP Phone 7940G

2

Cisco Unified IP Phone 7936

1

Cisco Unified IP Phone 7937

 

Cisco Unified IP Phone 7961G/7961G-GE

2

Cisco Unified IP Phone 7941G/7941G-GE

3

Cisco Unified IP Phone 7911G

2

Cisco Unified IP Phones 6921, 6941, 6961

4

Cisco Unified IP Phone 8951

4

Cisco Unified IP Phones 9951 and 9971

5

Cisco Unified Communications Integration™ for Microsoft Office Communicator

3

Cisco IP Communicator

3

Gateway

Cisco 3845

1

Inline power IU switch

WS-C3550-24PWR-SMI

1

WS-C3750-24PS-S

1


Cisco Unified Communications Manager Interoperability Site Centralized with Unified SRST

The Cisco Unified Communications Manager Interoperability Site model for EUEM consists of one site called London (LGW). In this model, a Cisco Unified Communications Manager cluster serves 2,000 phones in a single campus. A PBX that supports the ISO QSIG variant connects to this cluster through direct QSIG links.

The Cluster connects to the rest of the network through MPLS WAN networks. Calls between this site and other sites in the network are made through the WAN with two Annex M1 intercluster trunks to the CDG and MAD sites.

Some PBX and Cisco Unified Communications Manager users have voice messaging services provided by Cisco Unity Connection, which is connected to the cluster through an SCCP link. The PBX user access voice messages through QSIG trunks to Cisco Unified Communications Manager.

Other PBX and CCM users have access to voice messaging with Unity Connection located in the CDG Site via the Annex M1 Inter Cluster Trunk. MWI events and message store and retrieval for both the connected PBX and the CCM users is all passed Annex M1 between the sites.

Access to the PSTN as a backup route to other sites and for normal off-net calls is provided by 5 E1 ETSI PRI links to the PSTN. Access to the Cisco Unified Communications Manager network, and any non-directly connected clusters is provide through remotely located H.323 gatekeepers. Access to the SIP network is provided through a SIP trunk to a remotely located Cisco Unified SIP Proxy (CUSP). Operator console services are provided locally

The Cisco Unified Communications Manager Interoperability Site model has these design characteristics:

Cisco Unified Communications Manager cluster for redundancy and system scaling

Inline power to IP phones

Quality of service from the desktop

Cisco Unity Connection, with the server located remotely and connected through an SCCP link to Cisco Unified Communications Manager

Cisco Unity Connection voice messaging located remotely, with access provided through Annex M1 intercluster trunk from the Large Multisite Centralized with Unified SRST cluster

Cisco Unified Enterprise Attendant Console Windows 2003 Server on HP ProLiant DL320

PBX connectivity to Cisco Unified Communications Manager and to Cisco Unity Connection through Cisco Unified Communications Manager using a direct QSIG trunks

QSIG Feature transparency between PBXs to PBX, PBX to Cisco Unified Communications Manager, Cisco Unified Communications Manager to PBX, and Cisco Unified Communications Manager to Cisco Unified Communications Manager clusters.

Figure 13 shows the topology of the EUEM Cisco Unified Communications Manager Interoperability site model.

Figure 13 EUEM Cisco Unified Communications Manager Interoperability Site Topology

Table 16 lists the hardware and software components used in the EUEM Cisco Unified Communications Manager Interoperability Site model.

Table 16 EUEM Cisco Unified Communications Manager Interoperability Site Model Components 

Component
Description
Qty.

Access Catalyst switch

WS-C6509-E

2

Cisco Unified Communications Manager server

Cisco MCS 7835 Unified Communications Manager Appliance

3

Cisco Unified IP Phones

Cisco Unified IP Phone 7971G-GE

2

Cisco Unified IP Phone 7970G

2

Cisco Unified IP Phone 7960G

2

Cisco Unified IP Phone 7940G

2

Cisco Unified IP Phone 7937

2

E1 gateway card

Cisco 3845

1

Inline power IU switch

WS-C3550-24PWR-SMI

1

WS-C3750-48PS-S

1

Router

Cisco 2821

1

Cisco 3825

1


Cisco Unified Communications Manager Interoperability Site (Cisco SIP CME Site Aggregated by Cisco Unified SIP Proxy)

The Small Campus SIP only Multisite model consists of one site called Reykjavik (RKV). This model includes three Cisco Unified Communications Manager Express (Unified CME) sites aggregated by a Cisco Unified SIP Proxy (CUSP) module running on a Cisco 3825 gateway router. The Cisco Unified SIP Proxy is a high-performance, highly available stateless Session Initiation Protocol (SIP) server for centralized routing and SIP signaling normalization. Each Unified CME is connected to Cisco Unified SIP Proxy module through SIP trunks. The Cisco Unified SIP Proxy is connected to other Unified Communications Manager clusters in CDG and GVA sites through SIP trunks. SIP RSVP features are configured on the Unified CME routers for RSVP between Unified CME phones and Unified CM cluster phones.

The Small Campus SIP only Multisite model has these design characteristics:

Inline power to IP phones

Remote access to other Unified CM clusters (CDG and GVA) through SIP trunks

RSVP between Unified CME phones and Unified CM cluster phones

Figure 14 shows the topology of the Non-Cisco Unified Communications Manager Interoperability Site model.

Figure 14 Non-Cisco Unified Communications Manager Interoperability Site Topology

Table 17 lists the hardware and software components used in the Non-Cisco Unified Communications Manager Interoperability Site model.

Table 17 Non-Cisco Unified Communications Manager Interoperability Site Model Components 

Component
Description
Qty.

Cisco Unified Communications Manager Express server

Cisco 2801

1

Cisco 2811

2

Cisco 2821

3

Cisco 2851

2

Cisco 3825

2

Cisco 3845

2

Cisco Unified IP Phone

Cisco Unified IP Phone 7941

3

Cisco Unified IP Phone 7961

3

Cisco Unified SIP Proxy Server (CUSP)

Cisco 3825

1

Inline power IU switch

WS-C3550-24PWR-SMI

1

WS-C3750-24PS-S

1

Gateways

Cisco 2811

1

Cisco 2851

1

Router

Cisco 3825

1


Small Campus Multisite H.323

The Small Campus Multisite H.323 site model consists of one site called Warsaw (WAW). This model includes 13 Cisco Unified Communications Manager Express sites connected to each other and to the rest of the network through H.323 gatekeepers. Each Cisco Unified Communications Manager cluster uses an IP-to-IP gateway and MTP to communicate with the Cisco Unified Communications Manager Express systems in this site.

Each Cisco Unified Communications Manager Express system has either Cisco Unity Express installed locally, or will access Cisco Unity Connection through an MWI relay gateway that is located in the GVA site.

The Small Campus Multisite H.323 model has these design characteristics:

Inline power to IP phones

Quality of service from the desktop

Cisco Unity Connection, connected through MWI relay gateway

Remote access through H.323 gatekeepers to other Cisco Unified Express clusters and servers

Figure 15 shows the topology of the Small Campus Multisite H.323 site model.

Figure 15 Small Campus Multisite H.323 Site Topology

Table 18 lists the hardware and software components used in the Small Campus Multisite H.323 model.

Table 18 Small Campus Multisite H.323 Model Components 

Component
Description
Qty.

Analog gateway

ATA 187

2

Cisco Unified IP Phone

Cisco Unified IP Phone 7971G-GE

4

Cisco Unified IP Phone 7970G

4

Cisco Unified IP Phone 7960G

10

Cisco Unified IP Phone 7940G

10

Cisco Unified IP Phone 6921, 6941, and 6961

6

Gateway

Cisco 2801

1

Cisco 2811

1

Cisco 2821

2

Cisco 2851

1

Cisco 3825

5

Cisco 3845

2

Inline power IU switch

WS-C3550-24PWR-SMI

2

WS-C3750-24PS-S

1

WS-C3750-48PS-S

1


Mid-Market Multi-Site Centralized

The Mid-Market Multi-Site Centralized cluster consists of one centralized site with five SRST remote sites called Manchester (MAN). This model includes Cisco Unified Communications Manager and Cisco Unity Connection running on co-resident deployment on a single Cisco MCS 7828 Unified Communications Manager Appliance server. A separate Windows 2008 server acts as the DNS server for both central and remote sites. DHCP is provided by the remote and central Cisco ISRs.

In this model, a Cisco Unified Communications Manager cluster serves 500 phone users in local and remote locations, with the Cisco Unity Connection in the central site providing the voice mail services. Operator console (CUBACS) is provided separately on a local server in the central site.

The Central site is connected to the remote SRST sites through MPLS WAN networks. All calls within central site or within remote sites are G.711 and calls between remote sites and central site are G.729a with 30 ms packetisation period. If the Unified Communications Manager in central site goes down, all central site phones will re-register to a SRST router in central site and all remote site phones will register to the corresponding remote site SRST routers.

Access to the PSTN for normal "off-Net" calls is provided by E1 ETSI PRI/BRI links to the PSTN. The five remote sites are connected through WAN network and have RSVP setup for CAC to the central site. PSTN access for these remote sites either have centralized breakout to the PSTN, or local PSTN breakout using E1 PRI, BRI, or FXO connections and are controlled by Unified CM using either H.323 or SIP.

Central site uses MGCP PRI for Central PSTN.

The Mid-Market-Multi-Site Centralized site model has these design characteristics:

Cisco Unified Communications Manager Business edition (Unified CMBE)

Inline power to IP phones

Cisco Unified Contact Center Express (UCCX)

Cisco Unified Presence Server 8.0

Cisco Unified Personal Communicator 7.0 and 8.0 versions

SIP end points and Video end points

Microsoft OCS 2007 R2 server

Cisco Unified Business Attendant Console Windows 2008 Server on MCS 7825 Unified Communications Manager

Figure 16 shows the topology of the Mid-Market-Multi-Site Centralized site model.

Figure 16 Mid-Market Multi-Site Centralized Site Topology

Table 19 lists the hardware and software components used in the Mid-Market Multi-Site Centralized site model.

Table 19 Mid-Market-Multi-Site Centralized site Model Components 

Component
Description
Qty.

Cisco Unified Communications Manager Business edition server

Cisco MCS 7828 Unified Communications Manager Co-Res Server

1

Cisco Unified Presence server

Cisco MCS7835 Unified Communications Manager Appliance

1

Cisco Unified Contact Center Express

Cisco MCS 7835 Unified Communications Manager Appliance

1

Cisco Unified IP Phone

Cisco Unified IP Phone 7971G-GE

4

Cisco Unified IP Phone 7970G

4

Cisco Unified IP Phone 7960G

10

Cisco Unified IP Phone 7940G

10

Cisco Unified IP Phone 7937

4

Cisco Unified IP Phone 7961G/7961G-GE

5

Cisco Unified IP Phone 7941G/7941G-GE

5

Cisco Unified IP Phone 7911G

10

Cisco Unified IP Phone 6921, 6941, and 6961

6

Cisco Unified IP Phone 8961

2

Cisco Unified Personal Communicator 7.0

1

Cisco IP Communicator

1

Video End Points

Cisco Unified Personal Communicator 8.0

1

Cisco Unified Video Advantage

1

Cisco Unified Communications Integration™ for Microsoft Office Communicator

1

Cisco Unified IP Phone 9951 and 9971

4

Gateway

Cisco 2801

1

Cisco 2811

1

Cisco 2821

1

Cisco 2851

1

Cisco 3825

1

Cisco 3845

1

Inline power IU switch

WS-C3560G-48PS-S (Access switch)

1

WS-C3560E-24PD-S (D1 switch)

1

Access Catalyst switch

WS-C4507R

1