Cisco TelePresence Manuale di servizio

Cisco TelePresence

Video Communication

Server

Administrator Guide

Software version: X7.1

D14049.12

March 2012

Cisco VCS Administrator Guide (X7.1) Page 2 of 479

Contents

Introduction 12

About the Cisco TelePresence Video Communication Server (VCS) 13

VCS base applications 13

Standard features 14

Optional features 15

Installation and initial configuration 16

About this guide 17

Typographical conventions 17

Using the web interface 18

Using the command line interface (CLI) 19

Web page features and layout 20

What’s new in this version? 22

TMS Provisioning Extension support 22

Call processing 22

Virtual appliance support 22

Other enhancements and usability improvements 22

Overview and status information 23

Status overview 24

System information 25

Ethernet status 26

IP status 27

Resource usage 28

Clustered VCS systems 28

Active sessions 29

Active administrator sessions 29

Active user sessions 29

Registration status 30

Registrations by device 30

Registrations by alias 31

Registration history 31

Registration details 32

Call status 33

Current calls 33

Call history 34

Call summary 35

B2BUA calls 35

Search history 37

About searches 37

Search history list 37

Search details 38

Local Zone status 39

Zone status 40

Bandwidth 41

Link status 41

Pipe status 41

Policy service status 42

TURN relays status 43

Cisco VCS Administrator Guide (X7.1) Page 3 of 479

Presence 44

Presence publishers 44

Presence presentities 44

Presence subscribers 45

OCS Relay status 46

OCS/Lync B2BUA 47

OCS/Lync user status 47

OCS/Lync B2BUA status 47

TMS Provisioning Extension service status 48

Provisioning Server status 48

User records provided by TMSProvisioning Extension services 49

FindMe records provided by TMS Provisioning Extension services 50

Phone book records provided by TMS Provisioning Extension services 51

Provisioned devices 51

Checking provisioned data 51

Alarms 53

Logs 54

Event Log 54

Configuration Log 55

Network Log 56

Hardware status 58

VCS unit front panel 58

Network and system settings 59

Network settings 60

Configuring IP settings 60

Configuring Ethernet settings 62

Configuring DNS settings 62

Configuring Quality of Service settings 64

Network services 65

Configuring system name and access settings 65

Configuring SNMP settings 67

Time 68

Other settings 71

Configuring the Login page 71

Configuring external manager settings 71

Configuring TMS Provisioning Extension services 72

Configuring logging levels 74

Protocols 76

About H.323 77

Using the VCS as an H.323 gatekeeper 77

H.323 endpoint registration 77

H.323 configuration 77

About SIP 79

VCS as a SIP registrar 79

VCS as a SIP proxy server 80

Proxying registration requests 80

VCS as a SIP Presence Server 81

SIP configuration 81

Configuring SIP domains 84

Cisco VCS Administrator Guide (X7.1) Page 4 of 479

Configuring SIP and H.323 interworking 85

Searching by protocol 85

Enabling SIP endpoints to dial H.323 numbers 85

Registration control 87

About registrations 88

Finding a VCS with which to register 88

Registrations on a VCS Expressway 88

MCU, gateway and Content Server registration 89

Configuring registration restriction policy 89

Registering aliases 90

About Allow and Deny Lists 93

Configuring the registration Allow List 93

Configuring the registration Deny List 94

Device authentication 95

About device authentication 96

Authentication Policy 96

Authentication mechanism 97

Authentication Policy configuration options 99

Zone-level Authentication Policy 99

Subzone-level Authentication Policy 101

SIP authentication trust 102

Device authentication configuration 103

Authentication database 103

Endpoint credentials used for authentication 103

Device authentication using LDAP 104

Authentication process 104

LDAP server settings 104

Device LDAP schemas 106

Authentication using a local database 107

Credentials managed within TMS 107

Starter Pack 107

Authentication using Active Directory Service 108

Movi authentication using an Active Directory Service 108

Active Directory Service (ADS) configuration 109

Authenticating with external systems 112

Zones and neighbors 113

About your video communications network 114

Example network diagram 114

Structuring your dial plan 115

Flat dial plan 115

Structured dial plan 115

Hierarchical dial plan 115

About the Local Zone and subzones 117

Bandwidth management 117

Local Zone searches 117

About zones 118

Default Zone 118

Zone configuration 119

Configuring neighbor zones 119

Cisco VCS Administrator Guide (X7.1) Page 5 of 479

Configuring traversal client zones 122

Configuring traversal server zones 124

Configuring ENUM zones 126

Configuring DNS zones 127

Zone configuration: advanced settings 128

Zone configuration: pre-configured profile settings 133

TLS certificate verification of neighbor systems 133

Configuring a zone for incoming calls only 134

Clustering and peers 135

About clusters 136

Resource usage within a cluster 138

Example deployment 138

Managing clusters and peers 139

Setting up a cluster 139

Maintaining a cluster 139

Peer-specific configuration 141

Sharing registrations across peers 142

Sharing bandwidth across peers 142

Cluster upgrades and downgrades 143

Cluster backup and restore 143

Clustering and FindMe 143

Clustering and Presence 144

Clustering and TMS 144

About the Cluster Subzone 145

Neighboring the local VCS to another VCS cluster 145

TMS Agent replication status 146

Troubleshooting cluster replication problems 147

Dial plan and call processing 148

Call routing process 149

About the VCS's directory service 151

About hop counts 152

Configuring hop counts 152

Dial plan configuration 153

About the fallback alias 153

About transforms and search rules 155

Transforms 155

Search rules 155

About pre-search transforms 156

Configuring pre-search transforms 156

Search and zone transform process 158

Configuring search rules 159

Example searches and transforms 162

Filter queries to a zone without transforming 162

Always query a zone with original alias (no transforms) 163

Query a zone for a transformed alias 163

Query a zone for original and transformed alias 164

Query a zone for two or more transformed aliases 165

Stripping @domain for dialing to H.323 numbers 166

Transforms for alphanumeric H.323 ID dial strings 168

Cisco VCS Administrator Guide (X7.1) Page 6 of 479

Allowing calls to IP addresses only if they come from known zones 170

Configuring policy services 171

About Call Policy 172

Configuring Call Policy 172

Configuring Call Policy rules using the web interface 174

Configuring Call Policy using a CPL script 174

Configuring VCS to use the Cisco TelePresence Advanced Media Gateway 176

Configuring the VCS 176

Usage features and limitations 176

Configuring Cisco AM GW policy rules 177

Dialable address formats 179

Dialing by IP address 179

Dialing by H.323 ID or E.164 alias 179

Dialing by H.323 or SIP URI 179

Dialing by ENUM 180

IP dialing 181

Calls to unknown IP addresses 181

About URI dialing 183

URI dialing without DNS 183

URI dialing via DNS 184

URI resolution process using DNS 184

URI dialing via DNS for outgoing calls 186

URI dialing via DNS for incoming calls 187

URI dialing and firewall traversal 190

About ENUM dialing 191

ENUM dialing process 191

Enabling ENUM dialing 191

ENUM dialing for outgoing calls 192

Zone configuration for ENUM dialing 193

ENUM dialing for incoming calls 195

Configuring DNS servers for ENUM and URI dialing 196

Call signaling configuration 198

Identifying calls 199

Disconnecting calls 201

Disconnecting a call using the web interface 201

Disconnecting a call using the CLI 201

Limitations when disconnecting SIP calls 201

Bandwidth control 202

About bandwidth control 203

Example network deployment 203

Bandwidth configuration 205

About downspeeding 205

About subzones 206

Default links between subzones 206

About the Traversal Subzone 206

About the Default Subzone 207

Configuring subzones 207

Configuring subzone membership rules 208

Applying bandwidth limitations to subzones 209

Links and pipes 212

Cisco VCS Administrator Guide (X7.1) Page 7 of 479

Configuring links 212

Default links 212

Configuring pipes 213

Applying pipes to links 214

Bandwidth control examples 216

Firewall traversal 218

About firewall traversal 219

Expressway solution 219

How does it work? 219

VCS as a firewall traversal client 219

VCS as a firewall traversal server 220

Configuring a traversal client and server 221

Firewall traversal protocols and ports 222

Expressway process 222

H.323 firewall traversal protocols 222

SIP firewall traversal protocols 222

Ports for initial connections from traversal clients 223

Default port summary 223

TURN ports 224

Ports for connections out to the public internet 224

Firewall traversal and authentication 225

Authentication and NTP 226

Firewall traversal and Dual Network Interfaces 227

Firewall configuration 228

Configuring traversal for endpoints 228

Configuring traversal server ports 229

About ICE and TURN services 230

About ICE 230

About TURN 230

Configuring TURN services 231

Applications 232

Conference Factory 233

Conference creation process 233

Presence 235

Presence Server 235

Presence User Agent (PUA) 236

Configuring Presence 237

OCS Relay 240

Configuring a connection between the VCS and the OCS 240

Microsoft OCS/Lync B2BUA (back-to-back user agent) 241

Usage features and limitations 241

Configuring the Microsoft OCS/Lync B2BUA 242

Configuring the B2BUA's trusted hosts 244

Configuring transcoder policy rules 245

Configuring B2BUA transcoders 246

Restarting the B2BUA service 247

FindMe™ 248

User (FindMe) account configuration 248

How are devices specified? 248

Cisco VCS Administrator Guide (X7.1) Page 8 of 479

FindMe process overview 249

Recommendations when deploying FindMe 249

Configuring FindMe 249

Searching for FindMe users 252

TMS provisioning 253

VCS Provisioning Server 254

Starter Pack provisioning 256

Configuring Starter Pack provisioning 256

Maintenance 258

About upgrading software components 259

VCS software components 259

Prerequisites 259

Backing up before upgrading 259

Upgrading and option keys 260

Installing and rebooting 260

Upgrade procedure 260

Upgrading using secure copy (SCP/PSCP) 261

Option keys 263

Adding option keys using the web interface 264

Adding option keys using the CLI 264

About security certificates 265

Managing security certificates 265

CRL management 266

Certificate-based authentication configuration 267

Client certificate testing 269

Advanced account security 271

Prerequisites 271

VCS functionality: changes and limitations 271

Configuring language settings 273

Changing the language 273

Installing language packs 273

About login accounts 274

Account authentication 274

Administrator accounts 274

User accounts 274

Root accounts 275

Configuring login account authentication 275

Account authentication using LDAP 275

Root account 277

Resetting an administrator or root password 278

Resetting user account passwords 278

Configuring administrator accounts 279

Password security 280

Configuring administrator groups 281

Configuring user accounts 281

Configuring a user's principal devices 284

Configuring user groups 284

Backing up and restoring VCS data 286

Creating a backup 286

Cisco VCS Administrator Guide (X7.1) Page 9 of 479

Restoring a previous backup 287

Diagnostics tools 288

Diagnostic logging 288

Creating a system snapshot 289

Configuring Network Log levels 290

Configuring Support Log levels 290

Incident reporting 291

Incident reporting caution: privacy-protected personal data 291

Sending incident reports automatically 291

Sending incident reports manually 292

Viewing incident reports 292

Incident report details 293

Checking the effect of a pattern 294

Locating an alias 295

Port usage 296

Local VCS inbound ports 296

Local VCS outbound ports 296

Remote listening ports 297

Network utilities 298

Ping 298

Traceroute 298

DNS lookup 299

Restarting 301

Restarting using the web interface 301

Rebooting 302

Rebooting using the web interface 302

Shutting down 303

Shutting down using the web interface 303

Shutting down using the CLI 303

Developer resources 304

Debugging and system administration tools 304

Experimental menu 304

Reference material 305

Software version history 306

X7 306

X6.1 308

X6 309

X5.2 310

X5.1 311

X5 314

X4 317

About Event Log levels 319

Event Log format 319

Administrator and FindMe user events 319

Message details field 320

Events and levels 322

CPL reference 329

CPL address-switch node 329

otherwise 331

not-present 331

Cisco VCS Administrator Guide (X7.1) Page 10 of 479

location 331

rule-switch 332

proxy 332

reject 333

Unsupported CPL elements 333

CPL examples 334

LDAP configuration for device authentication 340

Downloading the H.350 schemas 340

Configuring a Microsoft Active Directory LDAP server 340

Configuring an OpenLDAP server 342

DNS configuration examples 345

Verifying the SRV record 345

Microsoft DNS server 345

BIND 8 & 9 345

Changing the default SSH key 347

Default SSH key alarms 347

Restoring default configuration 348

Configuration items reset by DefaultValuesSet level 3 348

Configuration items reset by DefaultValuesSet level 2 349

Password encryption 351

Maximum length of passwords 351

Pattern matching variables 353

Port reference 355

Regular expressions 360

Supported characters 363

Case sensitivity 363

TMS Agent (legacy) 364

FindMe 364

Device Provisioning 365

TMS Agent account passwords 365

TMS Agent passwords 366

TMS Agent LDAP and replication accounts 366

VCSs managed by TMS 366

VCSs not managed by TMS 366

What are traversal calls? 368

Alarms list 369

Alarms summary 369

Command reference — xConfiguration 383

xConfiguration commands 383

Command reference — xCommand 438

xCommand commands 438

Command reference — xStatus 454

xStatus elements 454

About policy services 466

Policy service request parameters 466

Policy service responses 467

Cryptography support 467

Flash status word reference table 468

Bibliography 469

Glossary 471

Legal notices 478

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