Wireless printer service process

Process overview of service for a wireless printer:

Procedure
  1. Wireless Printer 1 sends an mDNS response advertising printer service in Switch 1 on VLAN 1.
  2. Switch 1 has no inbound filter in VLAN 1. The global filter set to permit all.
  3. Switch 1 checks the outbound filter in VLAN 1. As there is no specific outbound filter, the global status is permit all. It will flood the packet in VLAN 1 except the source port.
  4. iPhone 1 in VLAN 1 receives the service announcement.
  5. Switch 1 checks the reflection status. Reflection is enabled on VLAN 2 and 3.
  6. Switch 1 checks the outbound filter in VLAN 2. As there is no specific outbound filter, it will forward the service announcement in VLAN 2.
  7. Default action permit all.
  8. Switch 1 checks the outbound filter in VLAN 3. The outbound filter is set to deny wireless printer therefore the packet will not be forwarded to VLAN 3.
  9. Switch 3 receives the service advertisement in VLAN 2. It will flood the packet in VLAN 2 except the source port.
  10. Host 2 in Switch 3 receives the service announcement.