Change SSDP discovery scan interval to 10 minutes (#99975)

* Change SSDP discovery scan interval to 10 minutes

The first version used a scan interval of 1 minute which we
increased to 2 minutes because it generated too much traffic.

We kept it at 2 minutes because Sonos historicly needed to
get SSDP discovery to stay alive. This is no longer the case
as Sonos has multiple ways to keep from going unavailable:

- mDNS support was added
- We now listen for SSDP alive and good bye all the time
- Each incoming packet from the device keeps it alive now
- We probe when we think the device might be offline

This means it should no longer be necessary to have such a
frequent scan which is a drag on all devices on the network
since its multicast

* adjust tests

homeassistant/components/ssdp/__init__.py

@@ -63,7 +63,7 @@
 UPNP_SERVER = "server"
 UPNP_SERVER_MIN_PORT = 40000
 UPNP_SERVER_MAX_PORT = 40100
-SCAN_INTERVAL = timedelta(minutes=2)
+SCAN_INTERVAL = timedelta(minutes=10)
 
 IPV4_BROADCAST = IPv4Address("255.255.255.255")
 

tests/components/ssdp/test_init.py

@@ -1,5 +1,5 @@
 """Test the SSDP integration."""
-from datetime import datetime, timedelta
+from datetime import datetime
 from ipaddress import IPv4Address
 from unittest.mock import ANY, AsyncMock, patch
 
@@ -447,15 +447,15 @@ async def test_start_stop_scanner(mock_source_set, hass: HomeAssistant) -> None:
     hass.bus.async_fire(EVENT_HOMEASSISTANT_STARTED)
     await hass.async_block_till_done()
 
-    async_fire_time_changed(hass, dt_util.utcnow() + timedelta(seconds=200))
+    async_fire_time_changed(hass, dt_util.utcnow() + ssdp.SCAN_INTERVAL)
     await hass.async_block_till_done()
     assert ssdp_listener.async_start.call_count == 1
     assert ssdp_listener.async_search.call_count == 4
     assert ssdp_listener.async_stop.call_count == 0
 
     hass.bus.async_fire(EVENT_HOMEASSISTANT_STOP)
     await hass.async_block_till_done()
-    async_fire_time_changed(hass, dt_util.utcnow() + timedelta(seconds=200))
+    async_fire_time_changed(hass, dt_util.utcnow() + ssdp.SCAN_INTERVAL)
     await hass.async_block_till_done()
     assert ssdp_listener.async_start.call_count == 1
     assert ssdp_listener.async_search.call_count == 4
@@ -785,7 +785,7 @@ async def test_ipv4_does_additional_search_for_sonos(
 
     hass.bus.async_fire(EVENT_HOMEASSISTANT_STARTED)
     await hass.async_block_till_done()
-    async_fire_time_changed(hass, dt_util.utcnow() + timedelta(seconds=200))
+    async_fire_time_changed(hass, dt_util.utcnow() + ssdp.SCAN_INTERVAL)
     await hass.async_block_till_done()
 
     assert ssdp_listener.async_search.call_count == 6