Hello,
If the number of available services on the local network exceeds 66, iTunes exits
unexpectedly because the service volume is high when user terminals obtain service
information through iTunes.
When deploying the mDNS service on the local network, you can perform the following steps
to configure the mDNS group function to limit the number of services that can be detected by
users.
1. Run the mdns group group-name command to create an mDNS group and enter the
mDNS group view.
2. Run the user-vlan vlan-id &<1-32> command to configure a user VLAN for the mDNS
group.
3. Run the service-vlan vlan-id &<1-32> command to configure a service VLAN for users
in the mDNS group. Service provisioning devices belong to this VLAN.

It is recommended that you set the number of services that can be detected by users to a value ranging
from 0 to 66.
Hope to help you!