mdns relay enable

Function

The mdns relay enable command enables the mDNS relay.

The undo mdns relay enable command disables the mDNS relay.

By default, the mDNS relay is disabled.

Format

mdns relay enable

undo mdns relay enable

Parameters

None

Views

VLAN view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Bonjour technology proposed by Apple uses mDNS. The destination multicast address of 224.0.0.251 used by mDNS is only valid in a Layer 2 broadcast domain. That is, information can be forwarded in a VLAN only, but cannot be forwarded across VLANs or Layer 3 devices. The mDNS relay and mDNS gateway solution implements service discovery across Layer 3. The device can function as the mDNS relay to forward mDNS packets exchanged between Bonjour-compliant terminals or service provisioning devices and mDNS gateway, implementing service discovery across Layer 3. The mdns relay enable command enables the mDNS relay.

Precautions

The device cannot function as both mDNS relay and gateway. A protection failure will occur if the mdns relay enable and mdns gateway enable commands are both configured on the device.

Example

# Enable the mDNS relay.

<HUAWEI> system-view
[HUAWEI] vlan 100
[HUAWEI-vlan100] mdns relay enable