Ubiquiti igmp. (1) 10G SFP+* and (1) GbE WAN port.

So, I'm curious what other folks experience is. Buy Ubiquiti Networks EdgeSwitch 8-Port 150-Watt Managed PoE+ Gigabit Switch with SFP featuring 8 x Gigabit Ethernet Ports, 2 x 1 Gbps SFP Ethernet Ports, 150 Watt Max. I can’t remember if the IGMP proxy binaries are even included in the UDM firmware. Some software/devices don't properly implement multicast, causing IGMP Snooping not to work (for example, the upnp protocol does not do multicast properly, and as such if you turn on snooping. 168. Example: “192. 95W total PoE availability. Profiles / Port and IP Groups / Create New Group. Up to 720 W. With UniFi you only get a check-box to enable IGMP snooping (basically on/off), as of controller 5. ApolloError: Response not successful: Received status code 400. 8. It immediately becomes querier and starts to send query packet. The EdgeSwitch Lite provides fiber connectivity options for your growing networks. Thats gonna hurt your multicast timings, like cameras. To get the best results, you will need to tune your wireless home network. This also allows IGMP traffic to flow between receivers (for watching PVR recorded video). MFDB Current Entries The current r/Ubiquiti • Ordered a discounted U6-Enterprise from Amazon for $200. Gateway Pro. I've used these commands: And also tried opening up IGMP on the Firewall and even that didn't work. Award. Up to 600 W. The UDM doesn’t even run the same OS as the USG units. EdgeRouter - Virtual Private LAN Service (VPLS) with LDP Signaling. A couple of things to look at: 1 check you don’t have any conflicting firewall rules enabled. So, its been a while now that igpm-proxy has been shown to not properly work on the latest hotfix 2 firmware on Edgerouters. Previously, it worked fine until my internet connection dropped IGMP snooping is a method that network switches use to identify multicast groups, which are groups of computers or devices that all receive the same network traffic. Feb 14, 2021 · Internet Group Management Protocol (IGMP) snooping is designed to prevent hosts on a local network from receiving traffic for a multicast group they have not explicitly joined. billm4 Unifi User • 2 yr. On the USG units you can enable it using the JSON files, so it is totally supported by the underlying OS. Forwarding Rate: 23. So far, the only Chromecast-specific rules I've needed: OUTBOUND: Allow Chromecasts to send TCP traffic from ports 8008-8009 + 8443 to any port on any client on the Main LAN. ERROR inform - [commit errors] dev[80:2a:a8:4d:4b:06], {DELETE={failure=0, success=1}, SESSION_ID=8c191cacee2413626aab08b78f, SET={error={service protocols igmp-proxy interface eth1 alt-subnet 0. I re-initialized the UDM Pro, USW-24-POE, and the 8 APs and rebuilt the entire network. So I've been tasked with installing an apartment intercom system on Unifi equipment. Was never charged. When the TTL of the packet reaches zero it drops it and will not forward it at all. Your channel width may also be causing some issues. Firmware version v2. (ARCHIVED) EdgeRouter - Sample Scripts to Change the Configuration. IGMP version 1 and version 2 allow hosts to join multicast groups but they don’t check the source of the traffic. Yet, Ubiquiti never saw any reason to add it to the interface. If you hover over the information popup for it it will tell you that it might. This is what it says: IGMP Snooping: Allows switches to identify multicast groups used in each port. Using AirPlay and Chromecast on networks with more than 100 wireless clients may degrade performance due to the use of multicast traffic. This does it for about 8 vlans. Welcome to Ubiquiti Help Center First Time Setup Step-by-step guide to configure your first UniFi Console or Cloud Gateway, enabling you to control WiFi access points, switches, cameras, and more effectively. IGMP Proxy (JSON config) = ON. May 13, 2024 · Send anonymous kernel crash logs to Ubiquiti; Added option to disable IGMP proxy for Wi-Fi calling (in web portal) Other minor improvements and fixes; v3. 5+ Gbps routing with IDS/IPS. 280. PoE Availability. EdgeRouter - PPPoE Server Rate Limiting Using WISPr RADIUS Attributes. Blame. Enable multicast enhancement (IGMPv3) Goto settings in your controller. To access the page, click Switching > Multicast Forwarding Database > IGMP Snooping in the navigation menu. I had a copper switch splitting the fiber optic traffic between my UDM and the provider router, which was running the IPTV. (4) Gigabit RJ45 Ports. On the Unifi controller, there's a setting to block broadcast/multicast from LAN to WLAN. Up to 195 W. It's super clean. If you want to leave this setting on, then you'll need to add some MAC addresses to the exception list. This prevents a single host on your network asking for multicast and subsequently causing every multicast packet to flood the entire network. This enables them to send the correct multimedia streams to the correct destination. 22. 0. Turn off IGMP Snooping on all of your switches and see if it makes a difference. Check the IGMP Proxy. Although not documented in the project's README , the software is also part of the Ubiquity Security Gateway and Edge Router . Idk what to do now lol. NOT firewall rules), by allowing ALL traffic between Jan 22, 2018 · Following are my recommended configuration changes for an optimized Ubiquiti UniFi home network. I have this same switch and have all gateway functions handled by a Fortinet where I push multicast to. ago. The problem with UniFi is even if the devices support igmp, there are limited settings available to configure it and no easy way to view status. It defines which network interfaces should be used by the routing daemon. Then igmp is enabled on second device 10. Set Admin Mode to Enable, the IP Address to 192. 6 at the time of writing). Generally, I like the way it looks. Dec 9, 2023 · Ensure IGMP Snooping is enabled and your network is selected. Click mDNS at the top. • 6 yr. Press enter (PC) or return (Mac). Ensure Daily Check is set to 6 AM. IGMP (IPTV) on USG PRO - Page 4 - Ubiquiti Networks Community. If it detects failure of the primary PSU, then the backup automatically activates to supply uninterrupted power. Bought a U6-Pro directly from Ubiquiti instead… BOTH of them showed up today. 1 SSH into the USG and issue the command: show protocols igmp-proxy interface and check that the returned values match the settings expressed in the config. Port - add each of the following: 5353 (Apple AirPlay/Bonjour/AirPrint I have enabled Multicast routing and IGMP Snooping on the main Router which is ASUS Router. (ARCHIVED) EdgeRouter - PPPoE RADIUS Disconnect Daemon. With source filtering, we can join multicast groups but only from specified source addresses. The (16) GbE PoE+, (8) GbE ports (2) 1G SFP ports. Unifi-16 at barn with eth16 as the uplink, eth6 as the untagged VLAN11 port (IGMP snooping enabled) HDMI RX plugged into the Unifi-16, eth6. I created four new networks and four new WiFi networks accepting all default settings except for the following: On Networks -> Global Settings, I turned on Multicast DNS. Backup Ensure Auto Backup is enabled. The switch is getting old, some leds dont light up anymore while connected with an utp cable. ) as well as "trusted" clients (mobile devices, laptops, servers, workstations). From the main menu, select Switching and then IGMP Snooping Querier. it will stop working). Seitdem funktioniert das Energie-Vlan nicht mehr bzw der Wechselrichter ist nicht mehr erreichbar. xxx ) Wifi. If you haven’t already been descriptive in your post, please take the time to edit it and add as many useful details as you can. 10. Realized it was a shady reseller and cancelled the order an hour later. x subnet. New comments cannot be posted and votes cannot be cast. com . Yes, absolutely, the UDR does have IGMP Snooping that can be enabled/disabled. 1/24 this time) and a VLAN ID to mark is as a separate network. Plug-and-play site management. OUTBOUND: Allow Chromecasts to send UDP traffic from ports 32768-61000 to any IGMP snooping on unifi OS devices. - most routers need to have IGMP snooping enabled to handle that type of traffic correctly (otherwise the network gets congested) - u-verse TV requires IGMP v3 (and maybe some Blocking IGMP of VLAN Gateways. ) Wrapping it up… Can't get BT IGMP/IPTV to work/is very flaky, EdgeRouter X. Disable Multicast and Broadcast Control. Nov 19, 2022 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright We would like to show you a description here but the site won’t allow us. Find help and support for Ubiquiti products, view online documentation and get the May 30, 2021 · Say on device with ip 10. Check the IGMP Proxy box under Settings->Networks->Global Network Settings. The EdgeSwitch offers an extensive suite of advanced Layer-2 switching features and protocols, and also provides Layer-3 routing capability. A UniFi article on Managing Broadcast Traffic goes into this in more detail. Here's what I'm calling the "Basic" IoT VLAN firewall setup to cover most non-specific IoT needs: Network Setup: LAN - Main is set up as a Corporate network on the 192. gateway. Each time a router sees a multicast packet, it will reduce its TTL by 1 until it reaches zero. Ensure Jumbo Frames is disabled. Going to 40 and 80 respectively will double the amount used but can also cause a ton of reflection and packet loss. This How To Note describes basic and advanced IGMP configuration, in the following major sections: Frequent igmp-proxy crashes. Ideally, I would like to block PING & other ICMP traffic between LANS - in theory, rules on the LAN Local interface should work - one issue LAN Local no longer New switch - IGMP Snooping. 00. The 24-port models include two SFP ports, providing up to 1 Gbps uplinks. 4, Alexa devices won’t authenticate after channel changes, etc. Etherlighting™. However the Optik TV isn't working well. IPv4 multicast groups by listening to IGMP join and leave requests. For each of the wireless networks that the Airplay devices are on and your source VLAN (ex data -> IoT) VLAN’s you will want to turn This is a place to discuss all of Ubiquiti's products, such as the EdgeRouter, UniFi, AirFiber, etc. 2, igmp is enabled. Goto Wireless Networks. This works flawless with iptv from KPN (Netherlands). Click apply changes. I use them in our home with a gigabit-speed Internet connection. Profile Name: Airprint. 222 and ensure IGMPv2 is selected and then click The 1 cable to the switch at your TV can be solved by using VLAN. Type the appropriate IP address in the address field ( 192. This includes accounting for neighboring networks, interference, the density of your APs, the number of your wireless clients and their idiosyncrasies in terms PoE Availability. Sort by: [deleted] • 5 yr. The TTL should be is a setting in your SVSI software, not in the CLI of your switch. The following steps will optimize network performance: Enable Multicast and Broadcast Control on the WiFi serving 100+ clients. If you're using a separate network and VLAN for your IoT IGMP snooping works on the switch component and allows the switch to look for IGMP requests, maintain a record of them, and filter multicast traffic accordingly. Whenever I would turn it on, I'd start seeing loss of quorum and guests getting moved due to fencing. Configure the Ethernet adapter on your host system with a static IP address on the 192. I have the UDR and just looked. I did find a little FAQ from the admins that shows the process of doing this, although this is not terribly documented anywhere clearly. For the VLAN-Protect, set Option 43 host address to your UNVR or Protect Host IP (which should be on your management VLAN at 192. Since it has not heard any query yet, it starts to send the query and once the first L3 device receives it, since the query that it received has an lower ip, it lets the 2nd device be Goto the services tab on the left. 3af/at PoE, Comprehensive User Interface, Rackmount Form Factor, Included Rack-Mount Brackets. It’d be nice to see the task scheduler and indeed igmp-proxy settings exposed in the UniFi UI. Multicast Forwarding Database IGMP Snooping Table Ubiquiti Networks, Inc. However, I could only get it working by forwarding them to the switch (switch0), which means they go out over all ports including my WiFi AP. 1X control Jumbo frames Proprietary loop protection DHCP snooping / guarding Egress rate limit LLDP-MED Port restricted by MAC Prevent Multicast from going out over WiFi (EdgeRouter X SFP) I've just got a new IPTV setup and I've managed to configure igmp-proxy to forward multicast packets to my network. Are the edgerouter products capable of performing…. 9 (EdgeRouter X) For whatever reason, I can't seem to get BT Sports (On YouView) to work properly. Alternatively you could look at Ubiquiti EdgeSwitch devices. . This is a place to discuss all of Ubiquiti's products, such as the EdgeRouter, UniFi, AirFiber, etc. The EdgeSwitch is a fully managed, PoE+ Gigabit switch, delivering robust performance and intelligent switching for growing networks. Jun 4, 2018 · Enabling IGMP Snooping. Managed by a CloudKey, Official UniFi Hosting, or UniFi Network Server. This network contains network devices (APs, switches, etc. I also disablde IGMP snooping for all networks for reasons I will explain in more detail later. TECside. From the ERL, I can ping both the TX and RX HDMI boxes. Loading Ubiquiti Community. (It’s possible by default, it was already on. Enter ubnt in the Username and Password fields. You can have a L3 switch and not need multicast configurations, as long as the L3 switch doesn’t have SVIs configured (vlans with ip addresses and routing actually turned on). You'll want to make sure that that setting is OFF because AirPrint relies on multicast to discover the printer. Multi-WAN independent gateway designed to protect large-scale networks with a full suite of advanced routing and security features. Dec 9, 2018 · Since I added this I’ve not noticed the brief periods where igmp-proxy fails. First. Rebooting the UDM suddenly fixes them all. The IGMP proxy configuration that Unifi uses is buggy at the best of times and does Loading Ubiquiti Community Ubiquiti Community Jul 19, 2021 · Click “Create new network” and select “Corporate” as type. Commit the changes and save the configuration. (1) Serial Console Port. It’s been the hardest thing to troubleshoot unfortunately. Buy Now. TTL prerouting update in iptables to update multicast TTL value to 4. Now it's an official release and I can go back to the official channel. We are upgrading the network where I live to Fibre and IP TV. We've got: Telus Arcadyan -> Ubiquiti Dream Machine -> switch -> Optik box (ipv6015). Launch your web browser. corey389. I moved from a nighthawk to a UDM, and there have been a bunch of weird things like this (printer won’t connect on 2. Dec 6, 2020 · IGMP Snooping: (checked) DHCP Range: (taken from above Gateway IP/Subnet) Separate WLAN/SSID. Multicast streams are forwarded only to network devices that should receive them. Model: ES‐12F. Latest commit Sep 2, 2020 · UDM-Pro and Apple Homekit mDNS Configuration. Rackmountable with Rack‐Mount Brackets (Included) Perfect, so far so good, the internet throughout our house is awesome now (many ubiquiti access points). Client isolation: OFF. Its getting quite annoying not being able to use my Sonos properly. We would like to show you a description here but the site won’t allow us. Vor kurzem ist allerdings ein komisches Problem aufgetreten: Ich habe meinen 24Port Unifi US24 gegen einen Unifi US24-250W mit POE ausgetauscht. 1/24” This is a subnet with the gateway of 192. Fanless, silent cooling VLANs for Servers and Computers. I've just added a fourth server to my cluster, and was looking to setup high availability. I have an UDM-SE on v. 0/0=The specified configuration node is not valid, service protocols igmp-proxy interface eth1 role upstream=The specified configuration node is An IGMP proxy forwards multicast traffic from one network to another, like your WAN to your LAN, or internally between your LAN subnets. The upstream network interface is the outgoing interface which is responsible for communicating to Allied Telesis routers and managed layer 3 sw itches use IGMP—Internet Group Management Protocol—to track which multicast groups their clients belong to. Enable Multicast enhancement. 30. e. 1 (18-Aug-20) WiFi enhancements; Performance and stability improvements; Security fixes (CVE-2020-12762) Improved support info and internal diagnostics; Other minor fixes; v3. The EdgeSwitch Lite connects to the Ubiquiti EdgeRouterTM PRO via an SFP uplink. 11. Switching Capacity: 32 Gbps. 81 Mpps. conf contains the configuration for the igmpproxy multicast daemon. set service webproxy listen-address 192. 0 and the lag1 interface as the mrouter port on the other switches all connecting back to it. Make sure the toggle is set to On. 1. Hi guys, i have been reading for a while but i have a question before buying an Ubiquiti switch. However, I’m unable to discover my Sonos system when on the GUEST network using the Sonos iOS app. License free. Any source is able to receive traffic to the multicast group (s) that they joined. The FTTP NTU (or any other type of modem) of your ISP must be connected to one of the WAN ports of your UniFi device. Power Consumption, Non-Blocking Throughput Switching, Auto-Sensing IEEE 802. The vendor says that if we want to run several TV boxes on the network using our own network it needs to support IGMP snooping. Select Settings and disable the Client Isolation and optionally the IGMP Snooping feature in the System section. GUI: Access the UNMS Controller Web Portal. L3 switch with (28) 10G SFP+ & (4) 25G SFP28 ports. Review Ubiquiti Networks ES-8-150W So if you have a Chromecast on an IoT VLAN, I'm specifically interested in your feedback. Experience the UniFi Cloud. Vlan 10,20,30,40 I have setup with igmp in vlan database with the core switch they all connect back to as the querier with address 0. When I google IGMP snooping and Ubiquiti it does not give any clear answers if this is supported in the GUI or has to be Enable IGMP Snooping and mDNS for both, content filtering off, standard network. This can vary from 2 up to 16,777,214 host. In the unifi controller, navigate to Settings -> Wireless Networks -> Create New Wireless Network and specify the following: Name: sonos; Enabled: (checked) Security: WPA Personal; Security Key: (use some super secret password) Network: Sonos The switches in-between the IPTV decoder and the UniFi device should have IGMP snooping enabled. I also gave it a new IP range ( 192. UXG-Pro. Ensure Flow Control is enabled. set service webproxy domain-block <domain-name>. Use this command to enable or disable the Ubiquiti Device Analytics feature. When I looked at the logs I was seeing a lot of of the Sonos OS (even the current S2) uses older / pre-standard STP path costs which makes it incompatible with the newer RSTP protocol which was introduced in 2001 and is the default for UniFi switches. Page 160 This value is also known as the MFDB high-water mark. 4. Can you (or somebody) who's done this post a brief HOWTO on setting it up, now that it's supported in the kernel? 186K subscribers in the Ubiquiti community. IGMP snooping STP / RSTP with priorities and port-level disable Port isolation Storm control Voice VLAN Port mirroring LACP port aggregation Multicast / broadcast rate limiting MAC address blocking Flow control 802. Best Practices for Chromecast and AirPlay. However, Ubiquiti has moved away from some of the internals present in their USG, and as such a few things aren't working quite as expected; one of those being the mDNS Reflector. I'm seeing frequent igmp-proxy crashes after the most recent firmware upgrade to my USG-XG, anyone have any thoughts? Archived post. Ubiquiti are adding stuff all the time – the UI is getting more fully featured with every release – so I imagine it will come eventually. That requires the switch at the TV supports VLAN and the switch at your modem supports VLAN. Not 100% sure that the UDM will relay the igmp packets. 4. Create an IOT wifi network associated with your VLAN-IOT Network. Ensure 802. If you want reliable multicast I would go with the Cisco option. 1/24 subnet. UniFi Power Backup ready. 2. Specify the local IP address that the the web proxy needs to listen on. Reply. Power Redundancy. Hello! Thanks for posting on r/Ubiquiti ! This subreddit is here to provide unofficial technical support to people who use or want to dive into the world of Ubiquiti products. Mode: Global Config. a make sure you have the right firewall rules up and running 2 make sure you didn’t put block firewall rules From what I've gathered from the AT&T u-verse forum and Ubiquiti forum: - u-verse's TV service is an IP TV service that works via multicast after about 10 seconds. Login to the web interface of your Ubiquiti network using the “Unifi Web Login” or by directly logging in to the IP of your controller / cloud key. $499. (1) 10G SFP+* and (1) GbE WAN port. Never say never, but I wouldn’t Thanks for posting on r/Ubiquiti! This subreddit is here to provide unofficial technical support to people who use or want to dive into the world of Ubiquiti products. (Again, note: if you have the STBs connected via the USG’s LAN 1 port, this is the eth1 interface instead. 0 (18-May-20) The EdgeRouter Infinity includes two AC/DC 100W power supplies. It's indicated as eth1. They do not need to be from Ubiquiti necessarily. For context, multicast traffic is traffic that is destined to multiple hosts, compared to unicast traffic which is only destined to a single host. It enables switches to forward packets to the correct devices in their network. Powerful gateway firewalls that run the UniFi application suite to power your networking, WiFi, camera security, door access, business VoIP, and more. IT WORKS - watching a live channel. System Updates Ensure Device Auto Updates is set to On. 3. Required firewall rules between VLANs for required ports (5353 etc) Have isolated it to a multicast/repeater/TTL issue of some kind (i. html. 1. 11. The Pan has igmp enabled and both devices in their own built in packet capture software show that they are receiving igmp group Packers but they can't see each other. First off, I don't know what an igmp proxy is, but I know I need a device to be the igmp querier. But, I wish it would do something like this (pardon my crappy screenshot drawing) so it isn't so vertical, but more horizontal IGMP snooping on. Get a switch hook everything up to the switch than you shouldn't have a problem with multicast. Two 8-port Unifi Ubiquiti Networks® EdgeSwitch®, part of the EdgeMAX® line of products. If you haven’t already been descriptive in your post, please take the time mDNS Repeater (JSON config) = ON. Strangely I can see there are vlans 10,50, and 60 listed in the show mac-address-table igmpsnooping but not the Nov 29, 2020 · IGMP habe ich für MagentaTV von der TCOM aktiviert, nach HowTo's aus dem Netz. It has! Finally. WiFi → Click on your SSID → Multicast Management Show Options. Note: This will break connectivity of Nov 30, 2019 · This rule will allow IGMP packets to flow freely from the IGMP proxy into your IPTV network – your eth2 (WAN 2/LAN 2) interface. I had a problem using Ubiquiti Unifi controller stable (2. (12) Gigabit SFP Ports. 2 is the default fallback IP address). They use multicast to find one another on the network. There is no solution to this problem that involves the USG or UDM-Pro routing the TV multicast data. The Internet Group Management Protocol (IGMP) is a network layer protocol that allows several igmpproxy. 3. WYRE (9973) | UK/EMEA: +44 (0) 1793 230 343 Email: Support@WyreStorm. Maximum AC Power Consumption: 56W. IGMP proxy works TTL keeps multicast traffic from going too far over a large network. This contrasts something like Cisco’s SG200/250 switches (similar price-point), which expose more granular controls and options. IGMP Snooping = ON. IGMP version 3 adds support for “source filtering”. Aug 4, 2021 · Aside from mcast-proxy, the generally accepted way to proxy IGMP is using a piece of software called igmpproxy. 1 that can host up to 253 clients (254 including the gateway itself) If the Mask Bits part is confusing use a Subnet Calculator or try different settings a use the Unifi built in calculator to check your settings (should pop 2. I can discover and control my Sonos (in the IOT) network from my PRIVATE network using the Sonos iOS app. Default: Disabled Sep 18, 2022 · Networks → Enable IGMP snooping. (1) 10G SFP+* and (1) GbE LAN port. 2N Door access controllers using IGMP. Hi-Capacity Aggregation. I've currently got default LAN plus 7 VLANs set up - I have rules in place to allow/block relevant inter-vlan traffic as required - all working fine. ). For high-capacity uplinks, the 48-port models include two SFP and two SFP+ 1. Specify the domain name that should be filtered. Type: Port Group. Situation now: netgear 16 port switch, managed, IGMP Snooping enabled. I’m 99% sure it’s because my IGMP-Proxy only has one upstream (PRIVATE vlan). Apparently, it doesnt allow IGMP Snooping to be disabled (or at least I could not for the life of me figure it out). Each interface must be give one of the following roles: upstream , downstream or disabled. r/Ubiquiti • If I could suggest one UI change to Ubiquiti, I'd propose a change to the way the topology displays. $899. Ex You don’t need a rule for forwarding traffic between your main and IOT networks and a separate one forwarding just new connection. Does anyone have any good workarounds whilst we wait for a fix? Archived post. Non‐Blocking Throughput: 16 Gbps. 1X Control is disabled. Ubiquiti Configuration Guide Application Note | 180718 2 of 2 North America: 844. Try again I enabled mDNS, IGMP snooping, firewall rules, etc. json (on the Unifi Controller filesystem). Global Switch Settings Ensure DHCP Snooping is enabled. I chose VLAN id 3 here to fit with the IP range. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright PoE Availability. device analytics. The AC/DC module is also sold separately as model RPS-AC-100W. This software works on Linux and the *BSDs. Devices > UFiber OLT > Settings > System > GPON. Navigate to the Devices and select the UFiber OLT. The UDM-Pro is an impressive piece of networking hardware. commit ; save. If it does, complain to Polycom. When I power up the Optik box: Initializing - 20-30 seconds. 3 Issue the command: show ip multicast interfaces and check the output. I tried a previous suggestion of adding igmp-proxy at the ERL but the config is invalid. You also have the option to use a DC/DC PowerModuleTM, model RPS-DC-100W (sold separately): Corosync and UBNT/Ubiquiti Switches IGMP Snooping. xc fu wa ew qr sh nd jz mz ib