Chapter 1. Cisco DNA Service for Bonjour Solution

- Overview

- Restrictions

- Solution Components

- Cisco Wide Area Bonjour Service Workflow

- Supported Platforms

- Cisco Wide Area Bonjour Supported Network Design

Overview

The Apple Bonjour protocol is a zero-configuration solution, which simplifies network configuration and enables communication between connected devices, services, and applications. Using Bonjour, you can discover and use shared services with minimal intervention and configuration. Bonjour is designed for single Layer-2 domains, which is ideal for small, flat, single-domain setups, such as home networks. The Cisco Wide Area Bonjour solution eliminates the single Layer-2 domain constraint and expands the scope to larger Layer-3 wired and wireless networks, as well as SD-Access networks.

The Cisco Wide Area Bonjour application is a software-defined controller-based solution that enables devices to advertise and discover Bonjour services across Layer-2 domains, making it applicable to a wide variety of wired and wireless enterprise networks. The Cisco Wide Area Bonjour application also addresses problems relating to security, policy enforcement and service administration on a larger scale. The distributed architecture is designed to build isolated flood boundaries and policy enforcement points, and to enable management of services. With the Cisco Wide Area Bonjour application, you can introduce new services into your existing environment, without modifying the existing network design or configuration.

The intuitive GUI provides you with centralized access control and monitoring capabilities, combined with the scalability and performance required for large-scale Bonjour services deployments.

The Cisco Wide Area Bonjour application operates across two integrated domain networks.

- Local-Area SDG Domain: The Cisco Catalyst switches at Layer 3 boundary function as Service Discovery Gateway (SDG) for local cache discovery and distribution functions between local VLANs. In this controller-less Bonjour solution, the SDG gateway switch provides a single gateway solution at the LAN and Wireless Distribution block. The SDG switch communicates with local Bonjour endpoints to build and manages the services information. The Bonjour gateway function is ineffective between Bonjour endpoints in same Layer 2 network, as they follow standards-based flood-and-learn rule.

- Wide-Area SDG Domain: The Wide Area Bonjour domain is a Controller-based solution. The Bonjour gateway role and responsibilities of Cisco Catalyst switching is extended from the SDG to an SDG-Agent. The network-wide distributed SDG-Agent devices establish a lightweight, stateful and reliable communication channel with centralized Cisco DNA-Center Controller running the Wide Area Bonjour application. The service routing between the SDG Agents and the Controller operates over regular IP networks using reliable TCP port 9991 between the Cisco DNA Center and the SDG Agent devices. The SDG Agents route locally discovered services based on the export policy.

Restrictions

- Cisco Service Discovery Gateway (SDG) and Wide Area Bonjour gateway function is supported on Cisco Catalyst Switch and Cisco ISR 4000 series routers. See Solution Components for the complete list of supporting platforms, software versions and license levels.

- Cisco IOS supports classic and new method of building local Bonjour configuration policies. The classic method is based on service-list mdns-sd CLI whereas the new method is based on mdns-sd gateway . We recommend using the new mdns-sd gateway method since the classic configuration support will be deprecated in near future releases.

- The classic to new method CLI migration is manual procedure to convert the configuration.

- The Bonjour service policies on Cisco SDG Gateways are effective between local VLANs. In addition to these, a specific egress policy controls the type of services to be exported to the controller. The Layer 2 Multicast-DNS Bonjour communication between two end-points on same broadcast domain is transparent to gateway.

- To enable end-to-end Wide Area Bonjour solution on Wireless networks, the Cisco WLC controller must not enable mDNS Snooping function. The upstream IP gateway on the dedicated Cisco Catalyst switch must have the Bonjour gateway function enabled for wireless clients.

- Cisco Wireless LAN Controller must enable AP Multicast with unique Multicast group. Without AP joining WLC Multicast group the mDNS messages will not be processed between client and gateway switch. Multicast on Client SSID or VLAN is optional for other multicast applications and not mandatory or required for Bonjour solution.

- Cisco Catalyst 9800 WLC can be configured as mDNS Gateway. In this mode, the Cisco Catalyst 9800 WLC supports Local-Area Bonjour gateway solution limited to Wireless only networks. Cisco Catalyst 9800 does not support Wide Area Bonjour. For end-to-end Wired and Wireless Bonjour support, we recommend using upstream Cisco Catalyst Switch as IP and Bonjour gateway.

Solution Components

The Cisco DNA Service for Bonjour solution is an end-to-end solution that includes the following key components:

- Cisco SDG Agent: The Cisco Catalyst Switch or an ISR 4000 series router functions as a Service Discovery Gateway (SDG) Agent and communicates with the Bonjour Service endpoints within the Layer 2 domain and central Cisco DNA Center controller.

- Cisco DNA Controller: The Cisco DNA Controller provides a secure channel with trusted SDG Agents, for centralized services management and controlled service routing.

- Cisco Wireless LAN Controller: The Cisco Wireless LAN Controller (WLC) transparently switches mDNS messages between wireless clients and upstream Bonjour gateway switch in distribution layer network.

- Endpoints: A Bonjour endpoint is any device that advertises or queries Bonjour services conforming to RFC 6762. The Bonjour endpoints can be in either LAN or WLANs. The Wide Area Bonjour application is designed to integrate with RFC 6762 compliant Bonjour services, including Apple, Microsoft, Google, HP and more.

Cisco Wide Area Bonjour Service Workflow

The Cisco Wide Area Bonjour solution follows a client-server model. The SDG Agent functions as a client and the Cisco Wide Area Bonjour application Cisco DNA Center functions as a server.

The following sections describe the workflow of service announcement and discovery in the IP network.

Announcing Services to the Network

- The endpoint devices (Source) in the Local Area Bonjour domain send service announcements to the SDG Agent and specify what services they offer. For example, _airplay._tcp.local, _raop._tcp.local, _ipp._tcp.local, and so on.

- The SDG Agent listens to these announcements and matches them against the configured Local Area SDG Agent policies. If the announcement matches the configured policies, the SDG Agent accepts the service announcement and routes the service to the controller.

Discovering Services Available in the Network

- The endpoint device (Receiver) connected to the Local Area SDG Agent sends a Bonjour query to discover the services available, using the mDNS protocol.

- If the query conforms to configured policies, SDG Agent responds with the services obtained from appropriate service routing via the Wide Area Bonjour Controller.

Wide Area Bonjour Multi-Tier Policies

The various policies that can be used to control the Bonjour announcements and queries are classified as the following:

- Local Area SDG Agent Filters: Enforced on the SDG Agent in Layer-2 Network Domain. These bi-directional policies control the Bonjour announcements or queries between the SDG Agents and the Bonjour endpoints.

- Wide Area SDG Agent Filters: Enforced on the SDG Agent for export control to the Controller. This egress unidirectional policy controls the service routing from the SDG Agent to the controller.

- Cisco Wide Area Bonjour Policy: Enforced on Controller for global service discovery and distribution. Policy enforcement, between the controller and the IP network is bi-directional.

Supported Platforms

The following table lists the supported controller, along with its hardware and software version.

Supported Controller

Hardware

Software Version

Cisco DNA Center Appliance

DN2-HW-APL

DN2-HW-APL-L

DN2-HW-APL-XL

1.3.1.0

Cisco Wide Area Bonjour Application

Cisco DNA Center Appliance

2.4.0.10062

The following table lists the Supported SDG Agents along with their licenses and software requirements.

Supported SDG Agent

Local Area SDG

Wide Area SDG

Minimum Software

Cisco Catalyst 9200 Series Switches

DNA Essentials

Unsupported

17.1.1

Cisco Catalyst 9200L Series Switches

Unsupported

Unsupported

-

Cisco Catalyst 9300 Series Switches

DNA Essentials

DNA Advantage

16.11.1

Cisco Catalyst 9400 Series Switches

DNA Essentials

DNA Advantage

16.11.1

Cisco Catalyst 9500 Series Switches

DNA Essentials

DNA Advantage

16.11.1

Cisco Catalyst 9500 Series Switches - High Performance

DNA Essentials

DNA Advantage

16.11.1

Cisco Catalyst 9600 Series Switches

DNA Essentials

DNA Advantage

16.11.1

Cisco Catalyst 9800 Series Wireless Controllers

DNA Essentials

Unsupported

16.11.1

Cisco 5500 Series Wireless Controllers

Unsupported

Unsupported

Pass-Thru

Cisco 8540 Wireless Controller

Unsupported

Unsupported

Pass-Thru

Cisco Catalyst 6800 Series Switches

IP Base

IP Services + DNA-Addon

15.5(1)SY4

Cisco Catalyst 4500-E Series Switches

IP Base

IP Services + DNA-Addon

3.11.0

Cisco Catalyst 4500-X Series Switches

IP Base

IP Services + DNA-Addon

3.11.0

Cisco Catalyst 3650 Series Switches

DNA Essentials

DNA Advantage

16.11.1

Cisco Catalyst 3850 Series Switches

DNA Essentials

DNA Advantage

16.11.1

Cisco Catalyst 2960-X Series Switches

LAN Base

Unsupported

15.2.6E2

Cisco Catalyst 2960-XR Series Switches

IP Lite

Unsupported

15.2.6E2

Cisco 4000 Series Integrated Services Routers (ISR)

IP Base

AppX

16.11.1

Cisco Wide Area Bonjour Supported Network Design

- Traditional Wired and Wireless Networks

- Cisco SD Access Wired and Wireless Networks

- Local and Wide Area Bonjour Policies

Traditional Wired and Wireless Networks

The Cisco DNA Service for Bonjour supports various LAN network designs commonly deployed in the enterprise. The SDG Agent providing Bonjour gateway functions is typically an IP gateway for wired end-points that could be residing in the distribution layer in multilayer network designs, or in the access layer in routed access network designs.

The following figure shows various topologies which are explained further in the section.

- Multilayer LAN: In this deployment mode, the Layer 2 Access switch provides the transparent bridging function of Bonjour services to Distribution-layer systems that act as the IP gateway and SDG Agent. There is no additional configurration or new requirement to modify the existing Layer-2 trunk settings between the Access and Distribution Layer Cisco Catalyst Switches.

- Routed Access: In this deployment mode, the first-hop switch is an IP gateway boundary and therefore, it must be combined with the SDG Agent role.

The Cisco DNA Service for Bonjour also supports various Wireless LAN network designs commonly deployed in the Enterprise. The SDG Agent provides consistent Bonjour gateway functions for the wireless endpoints as in wired networks. In general, the IP gateway of the wireless clients is also a Bonjour gateway. However, the placement of the SDG Agent may vary depending on the Wireless LAN deployment mode.

Cisco SD Access Wired and Wireless Networks

In Cisco SD-Access network, the Fabric Edge switch is configured as the SDG Agent for fabric-enabled wired and wireless networks. Wide Area Bonjour policies need to be aligned with the SD-Access network policies with respect to Virtual Networks and SGT policies, if any.

Wide Area Bonjour uses two logical components in a network:

- SDG Agent: The Fabric Edge switch is configured as the SDG Agent, and the configuration is added only after the SD-Access is configured.

- Wide Area Bonjour Controller: The Wide Area Bonjour application in the Cisco DNA Center acts as the Controller.

The Wide Area Bonjour communication between the SDG Agent and the Controller takes place through the network underlay. The SDG Agent forwards the endpoint announcements or queries to the Controller through the fabric underlay. After discovering a service, a Bonjour-enabled application establishes direct unicast communication with the discovered device through the fabric overlay. This communication is subject to any configured routing and SDG policies.

Local and Wide Area Bonjour Policies

The Cisco Wide Area Bonjour policy is divided into four unique function to enable policy based Bonjour services discovery and distribution in two-tier domains. The network administrator must identify the list of Bonjour services that needs to be enabled and set the discovery boundary that can be limited to local or global based on requirements. Figure below illustrates enforcement point and direction of all four types of Bonjour policies at the SDG Agent level and in Cisco DNA-Center Wide Area Bonjour application:

- Local Area Bonjour Policy

- Wide Area Bonjour Policy

Local Area Bonjour Policy

The Cisco IOS Bonjour policy structure is greatly simplified and scalable with the new configuration mode. The services can be enabled with intuitive user-friendly service-type instead individual mDNS PoinTeR (PTR) records types, for example select AirPlay that automatically enables video and audio service support from Apple TV or equivalent capable devices. Several common types of services in Enterprise can be enabled with built-in service-types. If built-in service type is limited, network administrator can create custom service-type and enable the service distribution in the network.

The policy configuration for the Local Area Bonjour domain is mandatory, and is a three step process. Figure below illustrates the step-by-step procedure to build the Local-Area Bonjour policy, and apply to enable the gateway function on selected local networks:

Local Area Bonjour Policy Hierarchy

To configure local area bonjour policies, enable mDNS globally. For the device to receive mDNS packets on the interface, configure mDNS gateway on the interface. Create a service-list by using filter options within it allow services into or out of a device or interface. After enabling mDNS gateway globally and on the interface, you can apply filters (IN-bound filtering or OUT-bound filtering) on service discovery information by using service-policy commands.

Built-In Service List

The Cisco IOS software includes built-in list of services that may consist of one more Bonjour service-type. A single service-list may contain more than one service-type entries with default rule to accept service announcement from service-provider and the service query request from receiver end-points. If selected service-type contains more than one Bonjour service-types (PTR), then a service announcement or a service query is honoured when the announcement/query is for any one of these included Bonjour service-types. For example, Apple Time Capsule Data service-type consists of both_adisk and _afpovertcp built-in PTRs, however if any end-point announces or requests for only _afpovertcp service, then SDG Agent will successfully classify and process the announcement or request. The service-list contains implicit-deny for all un-defined built-in or custom services entries.

Table below illustrates complete list of built-in Bonjour services that can be used to create policies in local area Bonjour.

Cisco IOS Built-In Bonjour Service Database

Service

Service Name

mDNS PTRs

Apple TV

airplay

_airplay._tcp.local

AirServer Mirroring Service

airserver

_airserver._tcp.local

_airplay._tcp.local

Apple AirTunes

airtunes

_raop._tcp.local

Amazon Fire TV

amazon-fire-tv

_amzn-wplay._tcp.local

Apple AirPrint

apple-airprint

_ipp._tcp.local

_universal._sub._ipp._tcp.local

Apple TV 2

apple-continuity

_companion-link._tcp.local

Apple File Share

apple-file-share

_afpovertcp._tcp.local

Apple HomeKit

apple-homekit

_hap._tcp.local

_homekit._ipp.local

Apple iTunes Library

apple-itunes-library

_atc._tcp.local

Apple iTunes Music

apple-itunes-music

_daap._tcp.local

Apple iTunes Photo

apple-itunes-photo

_dpap._tcp.local

Apple KeyNote Remote Control

apple-keynote

_keynotepair._tcp.local

_keynotecontrol._tcp.local

Apple Remote Desktop

apple-rdp

_net-assistant._tcp.local

_afpovertcp._tcp.local

Apple Remote Event

apple-remote-events

_eppc._tcp.local

Apple Remote Login

apple-remote-login

_sftp-ssh._tcp.local

_ssh._tcp.local

Apple Screen Share

apple-screen-share

_rfb._tcp.local

Apple Time Capsule Data

apple-timecapsule

_adisk._tcp.local

_afpovertcp._tcp.local

Apple Time Capsule Management

apple-timecapsule-mgmt

_airport._tcp.local

Apple MS Window File Share

apple-windows-fileshare

_smb._tcp.local

Fax

fax

_fax-ipp._tcp.local

Google ChromeCast

google-chromecast

_googlecast._tcp.local

Apple HomeSharing

homesharing

_home-sharing._tcp.local

Apple iTunes Data Sync

itune-wireless-devicesharing2

_apple-mobdev2._tcp.local

Multifunction Printer

multifunction-printer

_ipp._tcp.local

_scanner._tcp.local

_fax-ipp._tcp.local

Phillips Hue Lights

phillips-hue-lights

_hap._tcp.local

Printer – Internet Printing Protocol

printer-ipp

_ipp._tcp.local

Printer – IPP over SSL

printer-ipps

_ipps._tcp.local

Linux Printer – Line Printer Daemon

printer-lpd

_printer._tcp.local

Printer Socket

printer-socket

_pdl-datastream._tcp.local

Roku Media Player

roku

_rsp._tcp.local

Scanner

scanner

_scanner._tcp.local

Spotify Music Service

spotify

_spotify-connect._tcp.local

Web-Server

web-server

_http._tcp.local

WorkStation

workstation

_workstation._tcp.local

Custom Service List

The Custom service list allows network administrator to configure service if built-in Bonjour database does not support specific service or bundled service types. For example, the file-sharing requirement demands to support Apple Filing Protocol (AFP) between macOS users and Server Message Block (SMB) file transfer capability between macOS and Microsoft Windows devices. For such requirements the network administrator can create an custom service list combining AFP (_afpovertcp._tcp.local) and SMB (_smb._tcp.local).

The Service-List provides flexibility to network administrator to combine built-in and custom service definition under single list. There is no restriction on numbers of custom service definitions list and association to single service-list.

Policy Direction

The Local Area Bonjour policy in Cisco IOS provides flexibility to network administrator to construct service policies that can align service announcement and query management in same or different local networks. The service-policies can be tied to either ingress or egress direction to enforce service control in both directions. The following sub-sections provide more details on service policy configuration.

Ingress Service Policy
The ingress service policy is a mandatory configuration element that is used to permit the processing of incoming mDNS service announcement and query requests. Without ingress service policy, the Bonjour gateway function on a targeted Wired or Wireless network is not enabled. The ingress service policy provides flexibility to permit service announcement and query on each user-defined service-types, i.e. permit accepting AirPlay service announcement and query request, but enable Printer service query request only.

Egress Service Policy
The egress service policy is an optional configuration and not required in following two conditions:

- The egress service policy is not applicable in local VLAN where the expected Bonjour end-points are service-provider only, i.e. Service-VLAN network may contain only IT managed service-provider end-points such as Apple TV, Printers etc. as these end-points do not query for other service-types in the network.

- The Wired or Wireless users must receive services only from Wide Area Bonjour domain by Cisco DNA-Center, and not from other Bonjour end points connected to the same SDG Agent.. The egress service policy configuration is only required when an SDG-Agent must distribute locally discovered Bonjour services information from one VLAN to other. For example, based on ingress service policy the SDG-Agent discovered and cache the AirPrint capable Printer from VLAN-A, if the receiver endpoint in VLAN-B wants to discover Printer information from VLAN-A then the SDG-Agent must have ingress and egress service policy permitting AirPrint service on both VLANs.

Conditional Egress Service Policy
The network administrator can optionally customize the egress service policy to enable conditional service response from sourced from specific VLAN network. For example, based on ingress service policy the SDG-Agent may discover AirPrint capable Printers from VLAN-A and VLAN-C networks. With conditional Local Area Bonjour egress service policy rule, the network administrator may limit distributing Printer information discovered from VLAN-A to the receivers in VLAN-B network and automatically filters VLAN-C Printers. The conditional egress service policy support is optional setting and only applicable on out direction service policy.

Service Status Timer Management

The Bonjour service-provider end-points may announces one or more services in the network combining mDNS records and time-to-live (TTL) service timers for each record. The TTL value provides assurance of end-point availability and serviceability in the network. The SDG Agents ensures that it contains up to date information in its local and updates global services in Controller based on TTL and other events in Local Area Bonjour domain. The network administrator must configure the service status timer where service-provider endpoint discovery is permitted.

Wide Area Bonjour Policy

The SDG-Agent mandatorily requires the controller bound Wide Area Bonjour service export policy to control routing local services and discover remote services from Cisco DNA-Center. As the Cisco DNACenter and SDG-Agent builds trusted communication channel the remote service response from Wide Area Bonjour App is implicitly permitted at SDG-Agent. Hence the Wide Area Bonjour policy is unidirectional it only requires egress service policy towards controller.

The Wide Area Bonjour policy hierarchy and structure is identical as described in Local Area Bonjour Policy structure section. Following sub-section provides step-by-step reference configuration to build and enforce the policy to enable the successful communication with Wide Area Bonjour App in Cisco DNA-Center.

Service List – Built-In and Custom

The network administrator must create new controller bound egress service list for the Wide Area Bonjour domain. In most common network deployment model, the Wide Area Bonjour service list may contain same service-types as the Local Area Bonjour to implement common services between both domains. Based on requirements, certain services can be limited to Local Area and prevent routed in Wide Area Domain, then by default only allowed service list entries are permitted and rest are dropped with implicit deny rule.

Ingress Policy Direction

The ingress service policy for Wide Area Bonjour domain is not required and cannot be associated to the controller.

Egress Policy Direction

As described the Bonjour policy structure between Local Area and Wide Area is consistent, however the enforcement point is different. We recommend configuring separate Service-List and Service-Policy for Wide Area Bonjour domain as it may help building unique policy set for each domain.

Conditional Egress Service List

The Wide Area Bonjour egress service list configuration can be customized to conditionally route the service or query request to the Cisco DNA-Center. With this alternative configuration settings, the network administrator can route the service or query the request in Wide Area Bonjour domain from specific local source VLAN network instead globally from entire system.

Wide Area Bonjour Service Status Timer Management

The Cisco DNA-Center centralizes the services information from large scale distributed SDG-Agents across the network. To maintain a scale and performance of controller the services routing information is transmitted and synchronized periodically by each SDG-Agent network devices. To protect system and network performance the scheduler base service information exchange allows graceful and reliable way to discover and distribute Bonjour services across Wide Area Bonjour domain.

In most large-scale network environment, the default Bonjour service timers on SDG-Agents are by default fine-tuned and may not need any further adjustments. Cisco recommends retaining the interval timer values to default and adjust only based on any user experience issue and consider modified parameters do not introduce scale and performance impact.

Chapter 2. Configuring Local Area Bonjour

- Configuring Local Area Bonjour Domain for Wired Networks

- Configuring Local Area Bonjour Domain for Wireless Networks

- Configuration Examples for Local Area Bonjour and Wide Area Bonjour

- Verifying Local and Wide Area Bonjour Domains

Configuring Local Area Bonjour Domain for Wired Networks

- Enabling mDNS Gateway on the Device

- Creating Custom Service Definition

- Creating Service List

- Creating Service Policy

- Associating Service Policy to an Interface

Enabling mDNS Gateway on the Device

To configure mDNS on the device, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd gateway

Example:

Device(config)# mdns-sd gateway

Enables mDNS on the device and enters mDNS gateway configuration mode.

Enter the following commands in mDNS gateway configuration mode to enable the respective functionalities:

- air-print-helper : Enables IOS devices like iPADs to discover and use older printers that support Bonjour

- cache-memory-max : Configures the percentage memory for cache

- ingress-client : Configures Ingress Client Packet Tuners

- rate-limit : Enables rate limiting of incoming mDNS packets

- service-announcement-count : Configures maximum advertisements

- service-announcement-timer : Configures advertisements announce timer periodicity

- service-query-count : Configures maximum queries

- service-query-timer : Configures query forward timer periodicity

- service-type-enumeration : Configures service enumeration

Note

For cache-memory-max , ingress-client , rate-limit , service-announcement-count , service-announcement-timer , service-query-count , service-query-timer , and service-type-enumeration commands, you can retain the default value of the respective parameter for general deployments. Configure a different value, if required, for a specific deployment.

Step 4

exit

Example:

Device(config-mdns-sd)# exit

Exits mDNS gateway configuration mode.

Creating Custom Service Definition

Service definition is a construct that provides an admin friendly name to one or more mDNS service types or PTR Resource Record Name. By default, few built-in service definitions are already predefined and available for admin to use. In addition to built-in service definitions, admin can also define custom service definitions.

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd service-definition service-definition-name

Example:

Device(config)# mdns-sd service-definition CUSTOM1

Configures mDNS service definition.

Note

All the created custom service definitions are added to the primary service list. Primary service list comprises of a list of custom and built-in service definitions.

Step 4

service-type string

Example:

Device(config-mdns-ser-def)# service-type _custom1._tcp.local

Configures mDNS service type.

Step 5

Repeat step 4 to configure more than one service type in the custom service definition.

Step 6

exit

Example:

Device(config-mdns-ser-def)# exit

Exit mDNS service definition configuration mode.

Creating Service List

mDNS service list is a collection of service definitions. To create a service list, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd service-list service-list-name {in | out}

Example:

Device(config)# mdns-sd service-list VLAN100-list in

Configures mDNS service list.

Step 4

match service-definition-name [message-type {any | announcement | query}]

Example:

Device(config-mdns-sl-in)# match PRINTER message-type announcement

Matches the service to the message type. Here, service-definition-name refers to the names of services, such as, airplay, airserver, airtunes, and so on.

Note

To add a service, the service name must be part of the primary service list.

If the mDNS service list is set to IN, the applicable command syntax is: match service-definition-name [message-type {any | announcement | query}] .

If the mDNS service list is set to OFF, the applicable command syntax is: match service-definition-name .

Step 5

exit

Example:

Device(config-mdns-sl-in)# exit

Exits mDNS service list configuration mode.

Creating Service Policy

A Service Policy that is applied to an interface specifies the allowed Bonjour service announcements or the queries of specific service types that should be processed, in ingress direction or egress direction or both. For this, the service policy specifies two service-lists, one each for ingress and egress directions. In the Local Area Bonjour domain, the same service policy can be attached to one or more Bonjour client VLANs; however, different VLANs may have different service policies.

To configure service policy with service lists, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd service-policy service-policy-name

Example:

Device(config)# mdns-sd service-policy mdns-policy1

Configures mDNS service policy.

Step 4

service-list service-list-name {in | out}

Example:

Device(config-mdns-ser-pol)# service-list VLAN100-list in

Device(config-mdns-ser-pol)# service-list VLAN300-list out

Configures service lists for IN and OUT directions.

Step 5

exit

Example:

Device(config-mdns-ser-pol)# exit

Exits mDNS service policy configuration mode.

Associating Service Policy to an Interface

To configure mDNS on the device, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

interface interface-name

Example:

Device(config)# interface Vlan 601

Enters interface mDNS configuration mode and enables interface configuration.

Step 4

mdns-sd gateway

Example:

Device(config-if)# mdns-sd gateway

Configures mDNS gateway on the interface.

Enter the following commands in the interface mDNS gateway configuration mode to enable the respective functionalities:

- active-query : Sets the time interval for SDG agent to refresh the active status of connected Bonjour client services. The timer value ranges from 60 to 120 seconds.

Note

This configuration is mandatory only on VLANs whose Bonjour policy is configured to accept Bonjour service announcements from connected Bonjour clients. If the VLAN is configured to only accept Bonjour queries but not Bonjour service announcements, this configuration is optional.

- service-instance-suffix (Optional) : Appends the service instance suffix to any announced service name that is forwarded to the controller.

- service-mdns-query [ ptr | all] : Configures mDNS query request message processing for the specified query types.

If the service-mdns-query command is used without any keyword, then all Bonjour query types (PTR, SRV, and TXT) are processed by default. It is recommended to use the service-mdns-query ptr command.

- service-policy policy-name : Attaches the specified service policy to the VLAN. Bonjour announcements, and queries received by and sent from the VLAN are governed by the policies configured in the service policy. This configuration is mandatory for all VLANs.

Note

Service policies can only be attached at interface level.

- transport [ all | ipv4 | ipv6] (Optional): Configures BCP parameter.

It is recommended to use transport ipv4 command, except in those networks where the Bonjour clients send only IPv6 announcements and queries.

Step 5

exit

Example:

Device(config-if-mdns-sd)# exit

Exits mDNS gateway configuration mode.

Configuring Local Area Bonjour Domain for Wireless Networks

The configuration of local area Bonjour on a switch that acts as the SDG Agent in a wireless network involves the same set of procedures that are used to configure local area Bonjour on a switch that acts as the SDG Agent in a wired network.

The Bonjour protocol operates on service announcements and queries. Each query or advertisement is sent to the Bonjour multicast address ipv4 224.0.0.251 (ipv6 FF02::FB). This protocol uses mDNS on UDP port 5353.

The address used by the Bonjour protocol is link-local multicast address and therefore is only forwarded to the local L2 network. As, multicast DNS is limited to an L2 domain for a client to discover a service it has to be part of the same L2 domain, This is not always possible in any large scale deployment or enterprise.

In order to address this issue, the Cisco Catalyst 9800 Series Wireless Controller acts as a Bonjour Gateway. The controller then listens for Bonjour services, caches these Bonjour advertisements (AirPlay, AirPrint, and so on) from the source or host. For example, Apple TV responds back to Bonjour clients when asked or requested for a service. This way you can have sources and clients in different subnets.

By default, the mDNS gateway is disabled on the controller. To enable mDNS gateway functionality, you must explicitly configure mDNS gateway using CLI or Web UI.

Figure below illustrates a prerequisite configuration for Wireless network to enable seamless communication between SDG-Agent switches and Wireless endpoints.

The Cisco WLC and Access Points by default prevents forwarding Layer 2 or Layer 3 Multicast frames between Wireless and Wired network infrastructure. The forwarding is supported with stateful capabilities enabled using AP Multicast. The network administrator must globally enable Multicast and configure unique Multicast Group to advertise in network. This multicast group is only required for Cisco Access-Points to enable Multicast over Multicast (MCMC) capabilities across the LAN network. The Bonjour solution does not require any Multicast requirements on Wireless Client VLAN; thus, it is optional and applicable only for other Layer 3 Multicast applications.

The core network must be configured with appropriate Multicast routing allowing AP’s to join WLC Multicast Group. The Multicast configuration must be enabled on Cisco WLC management VLAN and on Cisco Access Point of their own respective distribution layer switch.

- Enabling mDNS Gateway on the Device

- Creating Custom Service Definition

- Creating Service List

- Creating Service Policy

- Associating Service Policy with Wireless Profile Policy

Enabling mDNS Gateway on the Device

To configure mDNS on the device, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd gateway

Example:

Device(config)# mdns-sd gateway

Enables mDNS on the device and enters mDNS gateway configuration mode.

Enter the following commands in mDNS gateway configuration mode to enable the respective functionalities:

- air-print-helper : Enables IOS devices like iPADs to discover and use older printers that support Bonjour

- cache-memory-max : Configures the percentage memory for cache

- ingress-client : Configures Ingress Client Packet Tuners

- rate-limit : Enables rate limiting of incoming mDNS packets

- service-announcement-count : Configures maximum advertisements

- service-announcement-timer : Configures advertisements announce timer periodicity

- service-query-count : Configures maximum queries

- service-query-timer : Configures query forward timer periodicity

- service-type-enumeration : Configures service enumeration

Note

For cache-memory-max , ingress-client , rate-limit , service-announcement-count , service-announcement-timer , service-query-count , service-query-timer , and service-type-enumeration commands, you can retain the default value of the respective parameter for general deployments. Configure a different value, if required, for a specific deployment.

Step 4

exit

Example:

Device(config-mdns-sd)# exit

Exits mDNS gateway configuration mode.

Creating Custom Service Definition

Service definition is a construct that provides an admin friendly name to one or more mDNS service types or PTR Resource Record Name. By default, few built-in service definitions are already predefined and available for admin to use. In addition to built-in service definitions, admin can also define custom service definitions.

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd service-definition service-definition-name

Example:

Device(config)# mdns-sd service-definition CUSTOM1

Configures mDNS service definition.

Note

All the created custom service definitions are added to the primary service list. Primary service list comprises of a list of custom and built-in service definitions.

Step 4

service-type string

Example:

Device(config-mdns-ser-def)# service-type _custom1._tcp.local

Configures mDNS service type.

Step 5

Repeat step 4 to configure more than one service type in the custom service definition.

Step 6

exit

Example:

Device(config-mdns-ser-def)# exit

Exit mDNS service definition configuration mode.

Creating Service List

mDNS service list is a collection of service definitions. To create a service list, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd service-list service-list-name {in | out}

Example:

Device(config)# mdns-sd service-list VLAN100-list in

Configures mDNS service list.

Step 4

match service-definition-name [message-type {any | announcement | query}]

Example:

Device(config-mdns-sl-in)# match PRINTER message-type announcement

Matches the service to the message type. Here, service-definition-name refers to the names of services, such as, airplay, airserver, airtunes, and so on.

Note

To add a service, the service name must be part of the primary service list.

If the mDNS service list is set to IN, the applicable command syntax is: match service-definition-name [message-type {any | announcement | query}] .

If the mDNS service list is set to OFF, the applicable command syntax is: match service-definition-name .

Step 5

exit

Example:

Device(config-mdns-sl-in)# exit

Exits mDNS service list configuration mode.

Creating Service Policy

A Service Policy that is applied to an interface specifies the allowed Bonjour service announcements or the queries of specific service types that should be processed, in ingress direction or egress direction or both. For this, the service policy specifies two service-lists, one each for ingress and egress directions. In the Local Area Bonjour domain, the same service policy can be attached to one or more Bonjour client VLANs; however, different VLANs may have different service policies.

To configure service policy with service lists, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd service-policy service-policy-name

Example:

Device(config)# mdns-sd service-policy mdns-policy1

Configures mDNS service policy.

Step 4

service-list service-list-name {in | out}

Example:

Device(config-mdns-ser-pol)# service-list VLAN100-list in

Device(config-mdns-ser-pol)# service-list VLAN300-list out

Configures service lists for IN and OUT directions.

Step 5

exit

Example:

Device(config-mdns-ser-pol)# exit

Exits mDNS service policy configuration mode.

Associating Service Policy with Wireless Profile Policy

A default mDNS service policy is already attached once the wireless profile policy is created. Use the following steps to override the default mDNS service policy with any of your service policy:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

wireless profile policy profile-policy-name

Example:

Device(config)# wireless profile policy default-policy-profile

Configures wireless profile policy.

Step 4

mdns-sd service-policy custom-mdns-service-policy

Example:

Device(config-wireless-policy)# mdns-sd service-policy custom-mdns-service-policy

Associates an mDNS service policy with the wireless profile policy.

The default mDNS service policy name is default-mdns-service-policy .

Step 5

exit

Example:

Device(config-wireless-policy)# exit

Exits wireless profile policy configuration mode.

Configuration Examples for Local Area Bonjour and Wide Area Bonjour

The following example shows how to create a service list for wired and wireless Local Area Bonjour, and Wide Area Bonjour:

Device> enable
Device# configure terminal
Device(config)# mdns-sd service-list LOCAL-AREA-SERVICES-IN IN
Device(config-mdns-sl-in)# match apple-file-share
Device(config-mdns-sl-in)# match google-chromecast
Device(config-mdns-sl-in)# match apple-windows-fileshare
Device(config-mdns-sl-in)# match airplay
Device(config-mdns-sl-in)# match airtunes
Device(config-mdns-sl-in)# exit
Device(config)# mdns-sd service-list LOCAL-AREA-SERVICES-IN OUT
Device(config-mdns-sl-in)# match airplay
Device(config-mdns-sl-in)# match airtunes
Device(config-mdns-sl-in)# match google-chromecast source-interface 101-103,200,203
Device(config-mdns-sl-in)# match apple-file-share source-interface 101
Device(config-mdns-sl-in)# match apple-airprint source-interface 101-102
Device(config-mdns-sl-in)# exit

The following example shows how to associate a service policy to an interface for wired and wireless Local Area Bonjour, and Wide Area Bonjour:

Device> enable
Device# configure terminal
Device(config)# interface Vlan101
Device(config-if)# ip address 10.151.1.14 255.255.255.240
Device(config-if)# ip helper-address 10.251.3.1
Device(config-if)# mdns-sd gateway
Device(config-if-mdns-sd)# service-policy LOCAL-AREA-POLICY
Device(config-if-mdns-sd)# active-query timer 60
Device(config-if-mdns-sd)# transport ipv4
Device(config-if-mdns-sd)# service-mdns-query ptr
Device(config-if-mdns-sd)# exit

Verifying Local and Wide Area Bonjour Domains

- Verifying Service Discovery Gateway

- Verifying Controller

- Verifying Local Area Bonjour for Wired and Wireless Networks

Verifying Service Discovery Gateway

The following is a sample output of the show mdns-sd service-list service-list-name {in | out} command.

Name        Direction     Service        Message-Type      Source
==================================================================================
VLAN100-list        In          Printer        Announcement         -
In          Airplay        Query            -
In          CUSTOM1          Any            -
VLAN300-list    Out        Printer        Announcement       Vl200

The following is a sample output of the show mdns-sd service-definitionservice-definition-name service-type {custom | built-in} command.

Service                PTR               Type
================================================================================
apple-tv             _airplay._tcp.local        Built-In
_raop._tcp.local
apple-file-share       _afpovertcp._tcp.local          Built-In
CUSTOM1              _custom1._tcp.local         Custom
CUSTOM2              _customA._tcp.local             Custom
_customA._tcp.local

The following is a sample output of the show mdns-sd service-policy-name interface interface-name command.

Name            Service-List-In            Service-List-Out
==================================================
mdns-policy-1        VLAN100-list            VLAN300-list
mdns-policy-2        VLAN400-list            VLAN400-list

The following is a sample output of the show mdns-sd summary [interface interface-name] command.

Global mDNS Gateway
==========================================
mDNS Gateway           : Enabled
Rate Limit                     : 60 PPS (default)
AirPrint Helper            : Disabled

Interface  :  Vlan601
==========================================
mDNS Gateway             : Enabled
mDNS Service Policy      : policy1
Active Query                   : Enabled
: Periodicity 60 Seconds
Transport Type               : Both IPv4 & IPv6
Service Instance Suffix  : ghalwasi
mDNS Query Type          : ALL

Interface  :  Vlan602
==========================================
mDNS Gateway             : Enabled
mDNS Service Policy      : int602
Active Query                   : Enabled
: Periodicity 100 Seconds
Transport Type               : Both IPv4 & IPv6
Service Instance Suffix  : 602
mDNS Query Type          : ALL

Verifying Controller

The following is a sample output of the show mdns controller summary command.

Device# show mdns controller summary

Controller Summary
=====================================
Controller Name  :   DNAC-BONJOUR-CONTROLLER
Controller IP    :   10.104.52.241
State            :   UP
Port             :   9991
Interface        :   Loopback0
Filter List      :   policy1
Dead Time        :   00:01:00

The following is a sample output of the show mdns controller export-summary command.

Device# show mdns controller export-summary

Controller Export Summary
=========================
Controller IP    :   10.104.52.241
State            :   UP
Filter List      :   policy1
Count            :   100
Delay Timer      :   30 seconds
Export           :   300
Drop             :   0
Next Export      :   00:00:01

The following is a sample output of the show mdns controller statistics command.

Device# show mdns controller statistics

Total BCP message sent           : 47589
Total BCP message received       : 3
Interface WITHDRAW messages sent : 0
Clear cache messages sent        : 0
Total RESYNC state count         : 0
Last successful RESYNC           : Not-Applicable

Service Advertisements:
IPv6 advertised                 : 0
IPv4 advertised                 : 300
Withdraws sent                  : 0
Advertisements Filtered         : 0
Total service resynced          : 0

Service Queries:
IPv6 queries sent               : 0
IPv6 query responses received   : 0
IPv4 queries sent               : 0
IPv4 query responses received   : 0

The following is a sample output of the show mdns controller detail command.

Device# show mdns controller detail

Controller : DNAC-BONJOUR-CONTROLLER
IP : 10.104.52.241, Dest Port : 9991, Src Port : 0, State : UP
Source Interface : Loopback0, MD5 Disabled
Hello Timer 0 sec, Dead Timer 0 sec, Next Hello 00:00:00
Uptime 00:00:00
Service Announcement :
Filter : policy1
Count 100, Delay Timer 30 sec, Pending Announcement 0, Pending Withdraw 0
Total Export Count 300, Next Export in 00:00:16
Service Query :
Query Suppression Disabled
Query Count 50, Query Delay Timer 15 sec, Pending 0
Total Query Count 0, Next Query in 00:00:01

Verifying Local Area Bonjour for Wired and Wireless Networks

The following is a sample output of the show run command.

mdns-sd gateway
rate-limit 100
service-query-count 100
service-announcement-count 100

mdns-sd service-definition custom1
service-type _airplay._tcp.local
service-type _raop._tcp.local
service-type _ipp._tcp.local
service-type _afpovertcp._tcp.local
service-type _nfs._tcp.local
service-type _ssh._tcp.local
service-type _dpap._tcp.local
service-type _daap._tcp.local
service-type _ichat._tcp.local
service-type _presence._tcp.local
service-type _http._tcp.local
service-type _ipps._tcp.local
service-type _printer._tcp.local
service-type _smb._tcp.local
service-type _ftp._tcp.local

mdns-sd service-list list1 IN
match custom1
mdns-sd service-list list2 OUT
match custom1

mdns-sd service-policy policy1
service-list list1 IN
service-list list2 OUT

service-export mdns-sd controller APIC-EM
controller-address 99.99.99.10
controller-port 9991
controller-service-policy policy1 OUT
controller-source-interface Loopback0

Chapter 3. Configuring Wide Area Bonjour

- Configuring Wide Area Bonjour Domain

Configuring Wide Area Bonjour Domain

The Wide Area Bonjour domain configuration specifies the parameters of the controller, that is the Wide Area Bonjour Application running on Cisco DNA Center, as well as the service types that need to be exported to it from the SDG Agent. Configuring Wide Area Bonjour Domain involves creating service-lists and service policy similar to those created in Local Area Bonjour configuration; however, only egress policy from SDG Agent to controller is applicable.

- Enabling mDNS Gateway on the Device

- Creating Custom Service Definition

- Creating Service List

- Creating Service Policy

- Associating Service Policy with the Controller in Wide Area Bonjour Domain

Enabling mDNS Gateway on the Device

To configure mDNS on the device, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd gateway

Example:

Device(config)# mdns-sd gateway

Enables mDNS on the device and enters mDNS gateway configuration mode.

Enter the following commands in mDNS gateway configuration mode to enable the respective functionalities:

- air-print-helper : Enables IOS devices like iPADs to discover and use older printers that support Bonjour

- cache-memory-max : Configures the percentage memory for cache

- ingress-client : Configures Ingress Client Packet Tuners

- rate-limit : Enables rate limiting of incoming mDNS packets

- service-announcement-count : Configures maximum advertisements

- service-announcement-timer : Configures advertisements announce timer periodicity

- service-query-count : Configures maximum queries

- service-query-timer : Configures query forward timer periodicity

- service-type-enumeration : Configures service enumeration

Note

For cache-memory-max , ingress-client , rate-limit , service-announcement-count , service-announcement-timer , service-query-count , service-query-timer , and service-type-enumeration commands, you can retain the default value of the respective parameter for general deployments. Configure a different value, if required, for a specific deployment.

Step 4

exit

Example:

Device(config-mdns-sd)# exit

Exits mDNS gateway configuration mode.

Creating Custom Service Definition

Service definition is a construct that provides an admin friendly name to one or more mDNS service types or PTR Resource Record Name. By default, few built-in service definitions are already predefined and available for admin to use. In addition to built-in service definitions, admin can also define custom service definitions.

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd service-definition service-definition-name

Example:

Device(config)# mdns-sd service-definition CUSTOM1

Configures mDNS service definition.

Note

All the created custom service definitions are added to the primary service list. Primary service list comprises of a list of custom and built-in service definitions.

Step 4

service-type string

Example:

Device(config-mdns-ser-def)# service-type _custom1._tcp.local

Configures mDNS service type.

Step 5

Repeat step 4 to configure more than one service type in the custom service definition.

Step 6

exit

Example:

Device(config-mdns-ser-def)# exit

Exit mDNS service definition configuration mode.

Creating Service List

mDNS service list is a collection of service definitions. To create a service list, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd service-list service-list-name {in | out}

Example:

Device(config)# mdns-sd service-list VLAN100-list in

Configures mDNS service list.

Step 4

match service-definition-name [message-type {any | announcement | query}]

Example:

Device(config-mdns-sl-in)# match PRINTER message-type announcement

Matches the service to the message type. Here, service-definition-name refers to the names of services, such as, airplay, airserver, airtunes, and so on.

Note

To add a service, the service name must be part of the primary service list.

If the mDNS service list is set to IN, the applicable command syntax is: match service-definition-name [message-type {any | announcement | query}] .

If the mDNS service list is set to OFF, the applicable command syntax is: match service-definition-name .

Step 5

exit

Example:

Device(config-mdns-sl-in)# exit

Exits mDNS service list configuration mode.

Creating Service Policy

A Service Policy that is applied to an interface specifies the allowed Bonjour service announcements or the queries of specific service types that should be processed, in ingress direction or egress direction or both. For this, the service policy specifies two service-lists, one each for ingress and egress directions. In the Local Area Bonjour domain, the same service policy can be attached to one or more Bonjour client VLANs; however, different VLANs may have different service policies.

To configure service policy with service lists, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

mdns-sd service-policy service-policy-name

Example:

Device(config)# mdns-sd service-policy mdns-policy1

Configures mDNS service policy.

Step 4

service-list service-list-name {in | out}

Example:

Device(config-mdns-ser-pol)# service-list VLAN100-list in

Device(config-mdns-ser-pol)# service-list VLAN300-list out

Configures service lists for IN and OUT directions.

Step 5

exit

Example:

Device(config-mdns-ser-pol)# exit

Exits mDNS service policy configuration mode.

Associating Service Policy with the Controller in Wide Area Bonjour Domain

In Wide Area Bonjour, the service policy is configured globally and does not get associated with a VLAN as in the case of Local Area Bonjour.

To configure service policy globally, follow these steps:

Procedure

Step 1

enable

Example:

Device> enable

Enables privileged EXEC mode.

Enter your password, if prompted.

Step 2

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 3

service-export mdns-sd controller controller name

Example:

Device(config)# service-export mdns-sd controller DNAC-BONJOUR-CONTROLLER

Specifies a name for the controller and enters service-export mode

Step 4

controller-address ipv4-address

Example:

Device(config-mdns-sd-se)# controller-address 199.245.1.7

Specifies the controller address.

Step 5

controller-port port-number

Example:

Device(config-mdns-sd-se)# controller-port 9991

Specifies the port number on which the controller is listening.

Step 6

controller-source-interface interface-name

Example:

Device(config-mdns-sd-se)# controller-source-interface Loopback0

Specifies the source-interface for the controller.

Step 7

controller-service-policy service-policy-name out

Example:

Device(config-mdns-sd-se)# controller-service-policy policy1 OUT

Specifies the service policy to be used by the controller.

Note

Only OUT policy is applicable for Wide Area Bonjour.

Step 8

exit

Example:

Device(config-mdns-sd)# exit

Exits controller service export configuration mode.

Step 9

mdns-sd gateway

Example:

Device(config)# mdns-sd gateway

Enters mDNS gateway configuration mode.

Step 10

ingress-client query-suppression enable

Example:

Device(config-mdns-sd)# ingress-client query-suppression enable

Enables ingress query suppression for better scale and performance.

Step 11

exit

Example:

Device(config-mdns-sd)# exit

Exits mDNS gateway configuration mode.

Chapter 4. Additional References for DNA Service for Bonjour

- Additional References for DNA Service for Bonjour

Additional References for DNA Service for Bonjour

Related Topic

Document Title

Cisco Wide Area Bonjour Application on Cisco DNA Center User Guide

Cisco Wide Area Bonjour Application on Cisco DNA Center User Guide, Release 1.3.1.0

MIBs

MIB

MIBs Link

CISCO-SDG-MDNS-MIB

This MIB module defines objects describing the statistics of 63 local area and wide area mDNS SDG agent. Statistics could be 64 either global or per interface specific.

Chapter 5. Feature History for DNA Service for Bonjour

- Feature History and Information for Local and Wide Area Bonjour

Feature History and Information for Local and Wide Area Bonjour

The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

Release

Modification

Cisco IOS 15.2(6) E2

Cisco DNA Service for Local Area Bonjour and Wide Area Bonjour was introduced on the following platforms:

- Cisco Catalyst 2960-X Series Switches

- Cisco Catalyst 2960-XR Series Switches

Cisco IOS 15.5(1)SY4

Cisco DNA Service for Local Area Bonjour and Wide Area Bonjour was introduced on Cisco Catalyst 6800 Series Switches.

Cisco IOS XE 3.11.0 E

Cisco DNA Service for Local Area Bonjour and Wide Area Bonjour was introduced on the following platforms:

- Cisco Catalyst 4500-E Series Switches

- Cisco Catalyst 4500-X Series Switches

Cisco IOS XE Gibraltar 16.11.1

Cisco DNA Service for Local Area Bonjour and Wide Area Bonjour was introduced on the following platforms:

- Cisco Catalyst 3650 Series Switches

- Cisco Catalyst 3850 Series Switches

- Cisco Catalyst 9300 Series Switches

- Cisco Catalyst 9400 Series Switches

- Cisco Catalyst 9500 Series Switches

- Cisco Catalyst 9500 Series Switches - High Performance

- Cisco Catalyst 9600 Series Switches

- Cisco Catalyst 9800 Series Wireless Controllers

- Cisco 5500 Series Wireless Controllers

- Cisco 8540 Wireless Controllers

- Cisco 4000 Series Integrated Services Routers (ISR)

Cisco IOS XE Amsterdam 17.1.1

Cisco DNA Service for Local Area Bonjour and Wide Area Bonjour was introduced on Cisco Catalyst 9200 Series Switches.

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