Configuring Local Area Bonjour for Wireless Local Mode

Local area Bonjour for wireless local mode

Local Area Bonjour for wireless local mode is a network functionality that

  • introduces unicast mode function in Local Area Bonjour network domain

  • enables enhanced gateway function at the first hop of Wired and Wireless networks to communicate directly with any industry standard RFC 6762 compliant Multicast DNS (mDNS) end point in Layer 2 Unicast mode, and

  • introduces new service-peer mode expanding classic single-gateway controller to end-to-end service-routing with upstream SDG agent switch to enable unicast-mode, increased scale, performance and resiliency in the network.

Prerequisites for local area Bonjour for wireless local mode

Ensure that the Cisco Catalyst 9800 series controller is successfully configured and operational before implementing Cisco Local Area Bonjour for local mode wireless networks. This is necessary for the controller to be deployed in service-peer mode

  • Ensure that the targeted controller for the service-peer role has the required Cisco IOS-XE software version. See Supported SDG Agents with Supported Licenses and Software Requirements table in Cisco DNA Service for Bonjour Solution Overview chapter.

  • Ensure that the controller runs a valid Cisco DNA-Advantage license.

  • Ensure that the upstream distribution-layer Cisco Catalyst switch in SDG agent mode runs a valid Cisco DNA-Advantage license.

  • Ensure that the controller is interconnected as Layer 2 trunk in static 802.1Q mode, when Layer 2 Unicast service-routing is running between SDG agent in distribution-layer and the controller service-peer.

  • Ensure that the controller has IP reachability to upstream Cisco Catalyst 9000 series switches in SDG agent mode over same the IPv4 wireless management subnet.

  • Ensure that global multicast is enabled on the controller and AP is set to multicast mode. All local mode APs must join the multicast group in the network to successfully process mDNS messages.

Restrictions for local area Bonjour for wireless local mode

  • Controller management port is not supported for service-routing with upstream Catalyst SDG Agent switch.

  • The controller in service peer mode supports location-based service for access points in local mode and FlexConnect central switching mode.

  • The controller supports location-based capabilities only between wireless connected service provider and the receiver.

  • The controller does not support service-routing configuration using GUI.

Local area Bonjour for wireless local mode

Local area Bonjour for wireless local mode is a network service that

  • enables distributed Bonjour gateway function at the network edge through unified Cisco IOS-XE operating system across Cisco Catalyst 9000 series LAN switches and Cisco Catalyst 9800 series controller

  • supports mDNS gateway function to wireless users in local mode with service-routing peering to upstream Cisco Catalyst 9000 series switch for network-wide services discovery and distribution, and

  • eliminates mDNS flooding over Layer 2 trunk ports through unicast based service-routing between the controller and upstream SDG-Agent switch.

Local area Bonjour capabilities

The traditional wireless controller supported mDNS snooping function with various advancements for wireless networks. As the enterprise requirements expands, IT drives the IT organization to introduce new network deployment models, supporting mobile devices and distributed zero-configuration services with increased scale, granular security control and resiliency for mission critical networks. With end-to-end Wide Area Bonjour service-routing, the new solution enables service-oriented enterprise networks with intuitive user-experience.

The controller platform supporting mDNS gateway function builds service-routing peering with upstream Cisco Catalyst 9000 series switch for network-wide services discovery and distribution based on IT-managed granular policies and locations. The unicast based service-routing between the controller in service-peer mode and upstream SDG-Agent switch provides increased bandwidth and eliminates mDNS flood over wireless networks and Layer 2 trunk to upstream network.

Figure 1. Cisco Catalyst 9800 series controller local area Bonjour for wireless local mode
The Cisco Catalyst 9800 series controller facilitates local area Bonjour for wireless local mode, enabling efficient service-routing peering with upstream Cisco Catalyst 9000 series switches for enhanced network-wide service discovery and distribution.

Wireless AP multicast

Wireless AP multicast is a network feature that

  • enables forwarding of Layer 2 or Layer 3 multicast frames between wireless and wired network infrastructure with stateful capabilities

  • requires configuration of a unique AP multicast group on the controller to advertise in the IP core network, and

  • supports mDNS message processing over a wireless network when multicast is enabled.

Wireless AP multicast requirements

The controller and AP by default prevents forwarding of Layer 2 or Layer 3 Multicast frames between wireless and wired network infrastructure. The forwarding is supported with stateful capabilities enabled using AP multicast. To allow mDNS message processing over a wireless network, multicast must be enabled and unique AP multicast group must be configured on the controller to advertise in IP core network. This AP multicast group is only required for APs to enable Multicast over Multicast (MCMC) capabilities in the network. The Bonjour solution do not require any other multicast requirements on wireless client VLAN; thus, it is optional and applicable only for other Layer 3 multicast applications.

End-to-end wireless multicast configuration is required to ensure wireless APs successfully join the controller-announced multicast group.

Figure 2. Multicast routing in IP core network
Multicast routing in the IP core network illustrates the flow of multicast traffic from the source to multiple destinations, highlighting the necessary routing protocols and configurations for effective wireless AP communication.

Configure wireless AP multicast (GUI)

Configure wireless AP multicast settings to enable multicast communication on a controller in service-peer mode.

This procedure configures wireless AP multicast on a controller in service-peer mode.

Procedure

Step 1

Choose Configuration > Services > Multicast.

Step 2

Set the Global Wireless Multicast Mode to Enabled.

Step 3

From the AP Capwap Multicast drop-down list, select Multicast.

Step 4

Enter a unique IP address at AP Capwap IPv4 Multicast group Address.

Step 5

Click Apply.

Step 6

Click Save.

The wireless AP multicast configuration is applied and saved on the controller.

Configure wireless AP multicast (CLI)

This task configures wireless AP multicast to enable communication between access points and the controller using multicast addresses.

This procedure configures wireless AP multicast on a controller in service-peer mode.

Procedure

Step 1

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 2

wireless multicast

Example:

Device(config)# wireless multicast

Enable global IP multicast processing.

Step 3

wireless multicast IPv4-multicast-address

Example:

Device(config)# wireless multicast 239.254.254.1

Enables AP CAPWAP mode to Multicast with unique IPv4 multicast address configurations.

Step 4

exit

Example:

Device(config-mdns-sd)# exit

Exits mDNS gateway configuration mode.

Wireless AP multicast is configured on the controller, enabling multicast communication between access points.

Configure multicast in IP network (CLI)

Configure IP Multicast under AP VLAN, Management VLAN and IP core interfaces on upstream Catalyst LAN distribution-layer switch to enable multicast traffic processing in the network infrastructure.

This procedure configures IP Multicast under AP VLAN, Management VLAN and IP core interfaces on upstream Catalyst LAN distribution-layer switch.

Procedure

Step 1

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 2

IP multicast-routing

Example:

Device(config)# ip multicast-routing

Enables IP multicast processing.

Step 3

interface interface-id

Example:

Device(config)# interface TenGigabitEthernet 1/0

Selects an interface that is connected to hosts and network devices on which PIM can be enabled.

Step 4

IP PIM sparse-mode

Example:

Device(config-if)# ip pim sparse-mode

Enables IP Multicast on Layer 3 interfaces of distribution and core layer network switches:

  • AP VLAN– Enables IP multicast on SVI interface on VLAN assigned to wireless APs of wireless AP distribution layer switch.

  • Management VLAN– Enables IP multicast on SVI interface on VLAN assigned to controller management VLAN of wireless distribution layer switch.

  • Layer 3 Interface– Enable IP multicast routing on all core network devices and Layer 3 interfaces.

Step 5

exit

Example:

Device(config-if)# exit

Exits interface configuration mode.

Step 6

IP PIM RP-address RP-address

Example:

Device(config)# ip pim rp-address 239.254.254.100

Configures IP Multicast RP address on core and distribution network switches. IP network may have alternate multicast routing method.

IP multicast routing is enabled on the device with PIM sparse-mode configured on the specified interface and the RP address configured for multicast group management.

Configure local area Bonjour for wireless local mode

This section provides configuration guidelines to implement Cisco Catalyst 9800 series controller as mDNS gateway and enable service-peer mode to enable service-routing with upstream distribution-layer Cisco Catalyst 9000 series switch in SDG-Agent mode to build Local Area Bonjour.

Configure mDNS service policy (GUI)

Configure mDNS service policy to control multicast DNS service discovery traffic on wireless networks.

The mDNS service policy consists of creating a service-list to permit built-IN or user-defined custom service-types, associate service-list to a service-policy to enforce IN ingress or egress direction and apply the service-policy to targeted Wireless Profile. This configuration is common on the controller IN service peer or single-gateway solution for wireless networks.

This procedure configures mDNS Service-Policy on a controller IN service-peer mode.

Procedure

Step 1

Choose Configuration > Services > mDNS.

Step 2

Set the mDNS Gateway button to Enabled.

Step 3

Click Service Policy Tab.

Step 4

Click Service List and click Add.

This activates the Service List window.

Step 5

IN the Service List Name field, enter a unique name with alphanumeric value.

Step 6

From the Direction drop-down list, select service list policy direction. Use IN for ingress or OUT for egress mDNS message matching policy.

Step 7

Click +Add Services to add mDNS service-types IN selected service list.

Step 8

From the Available Services drop-down list, select built-IN or custom mDNS service-type.

Step 9

From the Message Type drop-down list, select Announcement to accept service advertisement or Query to permit service discovery from the network. Default message-type is any.

Step 10

Click Save button to add mDNS service-type entry.

Note

 

Repeat Step-7 to Step-9 to add more mDNS service-types IN selected service list.

Step 11

Click Apply to Device.

This creates a new mDNS Service List for selected direction.

Note

 

Repeat Step-5 to Step-11 for bi-directional service list.

Step 12

Click Service-Policy tab.

Step 13

Click +Add to create new mDNS service-policy.

Step 14

IN the Service Policy Name field, enter a unique mDNS service policy name.

Step 15

From the Service List Input drop-down list, select ingress mDNS service list input to enforce mDNS policies on ingress direction from wireless networks.

Step 16

From the Service List Output drop-down list, select mDNS policies on egress direction to wireless networks.

Step 17

Click Apply to Device.

This creates a new mDNS service policy.

Step 18

Choose Configuration > Tags & Profiles > Policy

Step 19

Choose or create a new Policy Profile.

Step 20

Click Advanced tab.

Step 21

From the mDNS Service Policy drop-down list, select an mDNS service policy.

Refer to Cisco Catalyst 9800 Series Configuration Guide to configure other policy profile parameters.

Step 22

Click Apply to Device button.

This creates a new policy profile or updates an existing policy profile with mDNS service policy.

Step 23

Click Save.

The mDNS service policy is successfully configured and applied to the policy profile, enabling controlled multicast DNS service discovery on the wireless network.

Configure mDNS service policy using CLI

Configure mDNS service policy to build and apply service-policies on target wireless profile in service-peer mode.

This procedure builds and applies service-policies on target wireless profile in service-peer mode.

Procedure

  Command or Action Purpose

Step 1

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 2

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

Example:

Device(config)# mdns-sd service-list VLAN100-LIST-IN in
Device(config)# mdns-sd service-list VLAN100-LIST-OUT out

Configures mDNS service-list to classify one or more service-types. Unique service-list is required to process incoming mDNS message and outbound response to requesting end points.

Step 3

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

Example:

Device(config)# mdns-sd service-list VLAN100-LIST-IN in
Device(config-mdns-sl-in)# match APPLE-TV
Device(config-mdns-sl-in)# match PRINTER-IPPS message-type announcement

Matches inbound service-list. The controller validates to accept or drop incoming mDNS service-type (for example, Apple TV) advertisement or query matching message type. The service-list contains implicit deny at the end. Default message-type is “any”.

Step 4

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

Example:

Device(config)# mdns-sd service-list VLAN100-LIST-OUT out
Device(config-mdns-sl-in)# match APPLE-TV
Device(config-mdns-sl-in)# match PRINTER-IPPS

Matches an outbound service-list. The controller provides local service proxy function by responding matching service-type to the requesting end points. For example, the Apple-TV and Printer learnt from VLAN 100 will be distributed to receiver in same VLAN 100. The service-list contains implicit deny at the end.

The message-type for outbound service-list is not required.

Step 5

exit

Example:

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

Returns to global configuration mode.

Step 6

mdns-sd service-policy service-policy-name

Example:

Device(config)# mdns-sd service-policy VLAN100-POLICY

Creates a unique mDNS service-policy.

Step 7

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

Example:

Device(config-mdns-ser-policy)# service-list VLAN100-LIST-IN in
Device(config-mdns-ser-policy)# service-list VLAN100-LIST-OUT out

Configure mDNS service-policy to associate service-list for each direction.

Step 8

exit

Example:

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

Exits mDNS service policy configuration mode.

Step 9

wireless profile policy policy-name

Example:

Device(config)# wireless profile policy WLAN-PROFILE

Configures unique wireless profile policy name to associate mDNS service-policy.

Step 10

mdns-sd service-policy service-policy

Example:

Device(config-wireless-policy)# mdns-sd service-policy VLAN100-POLICY

Associates mDNS service-policy to configured VLAN IDs.

Note

 

This step requires wireless profile policy to be administratively shutdown prior association service-policy and re-activate with no shutdown to make service-policy effective.

Step 11

exit

Example:

Device(config-mdns-sd)# exit

Exits mDNS gateway configuration mode.

The mDNS service policy is configured and associated with the wireless profile policy. The controller can now process incoming mDNS messages and provide outbound responses based on the configured service lists and policy.

Configuring custom service definition (GUI)

Create custom mDNS service definition with matching mDNS PTR records to enable end mDNS service-routing in the network.

The Cisco IOS-XE supports various built-in well-known mDNS service-definition types mapping to key mDNS PTR records to user-friendly names. For example, built-in Apple-TV service-type is associated with _airplay. _tcp.local and _raop. _tcp.local PTR records to successfully enable service in the network. The network administrator can create custom service-definition with matching mDNS PTR records to enable end mDNS service-routing in the network.

This procedure configures custom mDNS service definition and applies it to policy.

Procedure

Step 1

Choose Configuration > Services > mDNS.

Step 2

Set the mDNS Gateway button to Enabled.

Step 3

Click Service Policy Tab.

Step 4

Click Add to create new custom mDNS service-list definition.

This activates Service Definition window.

Step 5

In the Service Definition Name filed, enter a unique aplhanumeric value.

Step 6

(Optional) In the Description field, enter a description for the service definition.

Step 7

In the Service Type field, enter single mDNS PoinTeR (PTR) record entry in _<service-type>. _<protocol>.local regular expression format. For example, _airplay. _tcp.local

Step 8

Click + to add custom mDNS service-type in selected definition list.

Note

 

Repeat Steps 7 and Step 8 to add more custom service-type in selected definition list.

Step 9

Click Apply.

Step 10

Perform steps give in Configuring mDNS Service Policy (GUI) by selecting built-in or custom service-type to configure service list.

Step 11

Click Save.

Custom mDNS service definition is configured and applied to the service policy.

Configure custom service definition (CLI)

This task creates custom service-definition configuration to discover mDNS services from local wireless networks.

Use custom service definitions when you need to configure mDNS service discovery for services that are not predefined in the system.

Procedure

Step 1

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 2

mdns-sd service-definition-name service-definition-name

Example:

Device(config)# mdns-sd service-definition APPLE-CLASSROOM

Creates unique service-definition name for custom service-types.

Step 3

service-type custom-mDNS-PTR

Example:

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

Configure an regular-expression string for custom mDNS PoinTeR(PTR) record.

Step 4

exit

Example:

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

Returns to global configuration mode.

The custom service definition is created and configured for mDNS service discovery on local wireless networks.

Configure mDNS gateway on WLAN (GUI)

Configure mDNS gateway to activate mDNS processing for wireless clients associated with a WLAN.

The mDNS gateway activation on targeted WLAN is required to start processing incoming mDNS messages from associated wireless clients. To activate mDNS gateway the WLAN must be administratively shutdown and re-enable thus it may require network downtime planning.

This procedure configures custom mDNS gateway and required policies.

Procedure

Step 1

Choose Configuration > Tags & Profiles > WLANs.

Step 2

Click to enable the mDNS Gateway on existing WLAN row of Catalyst 9800 controller. Click + Add button to create new WLAN if required. Refer to Catalyst 9800 Series Wireless Controller Configuration Guide for step-by-step WLAN configuration.

Step 3

Click Advanced tab.

Step 4

From the mDNS Mode drop-down list, select Gateway to activate mDNS Gateway on the selected WLAN.

Step 5

Click Apply to Device.

Step 6

Click Save.

The mDNS gateway is configured and activated on the WLAN, enabling mDNS message processing for associated wireless clients.

Configure mDNS gateway on WLAN (CLI)

This task implements mDNS gateway functionality on a targeted WLAN to enable multicast DNS service discovery across network segments.

This procedure implements mDNS gateway on a targeted WLAN of the controller in service-peer mode.

Procedure

Step 1

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 2

WLAN profile-name WLAN-ID SSID-name

Example:

Device(config)# wlan WLAN-PROFILE 1 blizzard

Creates a unique WLAN.

Step 3

mdns-sd-interface gateway

Example:

Device(config-wlan)# mdns-sd-interface gateway

Configure mDNS gateway on targeted WLAN.

Note

 

This step requires wireless profile policy to be administratively shutdown prior association service-policy and re-activate with no shutdown to make service-policy effective.

Step 4

exit

Example:

Device(config-wlan)# exit

Returns to global configuration mode.

The mDNS gateway is configured on the WLAN and will enable multicast DNS service discovery functionality once the wireless profile policy is properly activated.

Configure service-routing on service-peer

Configure the controller in service peer mode to extend mDNS service discovery and distribution boundary beyond single controller to global IP network using unicast based service-routing.

The controller deployed in Service-Peer mode extends mDNS service discovery and distribution boundary beyond single controller to global IP network using on unicast based service-routing. The controller service peer must establish IP based unicast service-routing with Cisco Catalyst 9000 series switch in distribution layer network for global service-routing.

This procedure configures the controller in service peer mode.

Procedure

Step 1

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 2

mdns-sd gateway

Example:

Device(config)# mdns-sd gateway

Enables mDNS and enters in mDNS gateway configuration mode. The following optional parameters are available:

  • active-query: Periodic mDNS query to refresh dynamic cache.

  • active-response: Periodic active mDNS response instead per request processing.

  • mode: Set Catalyst 9800 in service-peer mode.

  • SDG-agent: Unicast service-routing with targeted SDG-Agent.

  • service-announcement-count: Configures maximum advertisements in service-routing to SDG-Agent.

  • service-announcement-timer: Configures advertisements announce timer periodicity in service-routing to SDG-Agent.

  • service-query-count: Configures maximum queries in service-routing to SDG-Agent.

  • service-query-timer: Configures query forward timer periodicity in service-routing to SDG-Agent.

  • service-type-enumeration: Configures service enumeration.

  • source-interface: Configures the source interface. If the source interface is configured, it will be used for all mDNS transactions. By default, wireless management interface will be used.

  • transport: Use IPv4 (default) or IPv6 transport for mDNS messaging to end points.

Note

 

For rate-limit, service-announcement-count, service-announcement-timer, service-query-count and service-query-timer 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 3

mode [ service-peer]

Example:

Device(config-mdns-sd)# mode service-peer

Configure mDNS gateway in service-peer mode.

Step 4

SDG-agent [ IPv4 Address]

Example:

Device(config-mdns-sd)# sdg-agent 10.0.2.254

Configure SDG Agent IPv4 address. Typically, the management VLAN gateway address. If FHRP mode, then use FHRP Virtual-IP address of management VLAN.

Step 5

exit

Example:

Device(config-mdns-sd)# exit

Returns to global configuration mode.

The controller is configured in service peer mode with unicast based service-routing to extend mDNS service discovery beyond the single controller to the global IP network.

Configure location-based mDNS on service-peer (GUI)

This task configures location-based mDNS service policy to enable service discovery and distribution between wireless service provider and receiver endpoints using policy-based service distributions IN wireless networks.

Cisco Catalyst 9800 series controller supports location-based mDNS service discovery and distribution between wireless service provider and receiver endpoints. The location-based mDNS service support can be implemented using multiple supporting AP classification methods to implement policy-based service distributions IN wireless networks. The location-based mDNS service is effective and supported on wireless APs IN Local-Mode or FlexConnect Central Switching modes.

The figure given below illustrates various LSS based mDNS service mode discovery and distribution support:

Figure 3. Location-Based mDNS gateway
The figure illustrates the various modes of location-based mDNS service discovery and distribution supported by the Cisco Catalyst 9800 series controller, highlighting the implementation of policy-based service distributions in wireless networks.

Before you begin

Follow these steps to configure location-based mDNS service policy:

Procedure

Step 1

Choose Configuration > Services > mDNS.

Step 2

Set the mDNS Gateway button to Enabled.

Step 3

Click Service Policy Tab.

Step 4

Click Service List and click Add.

This activates the Service List window.

Step 5

IN the Service List Name field, enter a unique name with alphanumeric value.

Step 6

From the Direction drop-down list, select service list policy direction. Use IN for ingress or OUT for egress mDNS message matching policy.

Step 7

Click +Add Services to add mDNS service-types IN selected service list.

Step 8

From the Available Services drop-down list, select built-IN or custom mDNS service-type.

Step 9

From the Message Type drop-down list, select Announcement to accept service advertisement or Query to permit service discovery from the network. Default message-type is any.

Step 10

Click Save button to add mDNS service-type entry.

Note

 

Repeat Step-7 to Step-9 to add more mDNS service-types IN selected service list.

Step 11

Click Apply to Device.

This creates a new mDNS Service List for selected direction.

Note

 

Repeat Step-5 to Step-11 for bi-directional service list.

Step 12

Click Service-Policy tab.

Step 13

Click +Add to create new mDNS service-policy.

Step 14

IN the Service Policy Name field, enter a unique mDNS service policy name.

Step 15

From the Service List Input drop-down list, select ingress mDNS service list input to enforce mDNS policies on ingress direction from wireless networks.

Step 16

From the Service List Output drop-down list, select mDNS policies on egress direction to wireless networks.

Step 17

Click Apply to Device.

This creates a new mDNS service policy.

Step 18

Choose Configuration > Tags & Profiles > Policy

Step 19

Choose or create a new Policy Profile.

Step 20

Click Advanced tab.

Step 21

From the mDNS Service Policy drop-down list, select an mDNS service policy.

Refer to Cisco Catalyst 9800 Series Configuration Guide to configure other policy profile parameters.

Step 22

Click Apply to Device button.

This creates a new policy profile or updates an existing policy profile with mDNS service policy.

Step 23

Click Save.

The location-based mDNS service policy is configured and applied to the policy profile, enabling policy-based mDNS service discovery and distribution IN the wireless network.

Configure location-based mDNS on service-peer (CLI)

This procedure implements LSS based mDNS service discovery and distribution between wireless endpoints on the targeted WLAN of the controller in service-peer mode.

Location-based mDNS filtering allows for targeted service discovery within specific network segments or geographic locations, improving network efficiency and security by limiting service advertisements to relevant areas.

Procedure

Step 1

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 2

mdns-sd service-policy service-policy-name

Example:

Device(config)# mdns-sd service-policy VLAN100-POLICY

Creates a unique mDNS service-policy.

Step 3

location { AP-location | AP-name | LSS | regex | site-tag | SSID}

Example:

Device(config-mdns-ser-policy)# location ap-location

Creates a unique mDNS service-policy.

  • AP-location: Enables mDNS service discovery and distribution between wireless service provider and receiver connected to one or more AP configured in the same location name. The mDNS services from non-matching AP location is automatically filtered.

  • AP-name: Enables mDNS service discovery and distribution between wireless service provider and receiver connected to single AP matching same AP name. The mDNS services from non-matching AP name is automatically filtered.

  • LSS: Enables mDNS service discovery and distribution between wireless service provider and receiver connected to same and neighboring one or more AP based on RRM. The mDNS services from non-matching AP neighbor-list is automatically filtered.

  • regex: Enables mDNS service discovery and distribution between wireless service provider and receiver connected to one or more AP configured within matching AP name or AP Location name using regular-expression string. The mDNS services from non-matching AP names is automatically filtered.

  • site-tag: Enables mDNS service discovery and distribution between wireless service provider and receiver connected to one or more AP configured same site tag name. The mDNS services from non-matching site tag is automatically filtered.

  • SSID: Enables mDNS service discovery and distribution between wireless service provider and receiver connected to one or more AP configured same SSID name. The mDNS services from non-matching SSID is automatically filtered.

Step 4

exit

Example:

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

Exits mDNS service policy configuration mode.

The location-based mDNS service policy is configured and will filter mDNS services based on the specified location criteria.

Verify mDNS gateway configuration

This section provides guidelines to verify various Local Area Bonjour domain mDNS service configuration parameters, cache records, statistics and more on the controller in service peer mode.

Command or Action

Purpose

show mdns-sd cache { AP-MAC | client-MAC | detail | glan-ID | mdns-AP | rlan-ID| statistics | type | UDN | wired | wlan-ID}

Displays available mDNS cache records supporting multiple variables providing granular source details:

  • AP-MAC: Displays one or more mDNS service instance cache records discovered from provided AP MAC address.

  • client-MAC: Displays one or more mDNS service instance(s) cache records discovered from service provider wireless client MAC address.

  • detail: Displays mDNS record detail information combined with client and network attributes and other service parameters.

  • glan-ID: Displays one or more mDNS service instance(s) cache records discovered from provided Wired Guest LAN ID MAC address.

  • mdns-AP: Displays one or more mDNS service instance(s) cache records discovered from provided Wireless mDNS AP MAC address.

  • rlan-ID: Displays one or more mDNS service instances(s) cache records discovered from provided Wired Remote LAN ID. Range 1-128.

  • statistics: Displays detail global bi-directional mDNS statistics for IPv4 and IPv6 transports with packet processing count for each mDNS record-type.

  • type: Displays one or more service-instance(s) cache records matching mDNS record-type, i.e., A-AAAA, PTR, SRV and TXT.

  • UDN: Displays one or more mDNS service instance(s) cache records discovered from segmented Wireless service provider in User-Defined-Group (UDN) or shared-services.

  • wired: Displays one or more mDNS service instance(s) cache records discovered from upstream Layer 2 wired network.

  • wlan-ID: Displays one or more mDNS service instance(s) cache records discovered from matching provided wlan-ID. Range 1-4096.

show mdns-sd statistics { debug | flexconnect | glan-ID | rlan-ID | wired | wlan-ID}

Displays detailed mdns statistics processed bi-directionally by system on each mDNS gateway enabled VLAN configured mDNS in Unicast mode. The expanded keyword of mDNS statistics can provide detail view on interface, policy, service-list and services.

show mdns-sd summary

Displays brief information about mDNS gateway and key configuration status on all VLANs and interfaces of the system.

Verify Catalyst WLC service-peer configuration

This section provides guidelines to verify service peer service configuration and statistics.

Command or Action

Purpose

show mdns-sd sp-SDG statistics

Displays mDNS service-routing statistics between Catalyst 9800 service-peer and upstream SDG Agent switch for global service discovery and distribution.

show mdns-sd summary

Displays brief information about mDNS gateway and key configuration status and parameters of the system.

Reference

Table 1.

Related Topic

Document Title

DNA Service for Bonjour Deployment on Cisco Catalyst 9600 Switch

Cisco Catalyst 9600 Series Switch Software Configuration Guide, Release 17.5.X

DNA Service for Bonjour Deployment on Cisco Catalyst 9500 Switch

Cisco Catalyst 9500 Series Switch Software Configuration Guide, Release 17.5.X

DNA Service for Bonjour Deployment on Cisco Catalyst 9400 Switch

Cisco Catalyst 9400 Series Switch Software Configuration Guide, Release 17.5.X

DNA Service for Bonjour Deployment on Cisco Catalyst 9300 Switch

Cisco Catalyst 9300 Series Switch Software Configuration Guide, Release 17.5.X

Cisco Wide Area Bonjour Application on Cisco Catalyst Center User Guide

Cisco Wide Area Bonjour Application on Cisco Catalyst Center User Guide, Release 2.2.2