i have a dlna server on one VLAN, and i want to forward the multicast traffic to other VLANs so clients on those VLANs can subscribe to the streams and consume the media. i have a sg300-28, and a linux machine running as a router. the router has IGMPproxy installed and should be able to forward the IGMP multicast traffic, but it seems that both layer 2 and layer 3 need to be in on the effort to get everything working. am i correct in thinking that?
what would i need to configure on the switch to get the dlna multicast traffic sent to ports on other VLANs? do i need both layer 2 and layer 3 to participate in the effort?
You can't select Layer 2 and Layer 3. In Layer 3 mode the device handles InterVLAN communication for the VLANs that are configured on it with no problems. As for the Multicasting, you might want to check the "Multicast" tab and look at some of those configurations. If you run it in Layer 2 mode then the router will have to handle all the InterVLAN communications.
I hope this helps. If you need farther assistance do not hesitate to call us at Cisco Small Business Support - 1(866)606-1866
i dont understand what you mean about selecting layer 2 and layer 3. the switch is in layer 2 mode, and i have a separate device doing layer 3. the layer 3 device is running a service to forward multicast traffic and that does not seem to be enough. i am looking to see if the multicast functionality of the layer 2 device needs to be used to get everything working. i am refering to IGMP snooping and those features of the switch.
Hi Brendan, as it should work, you can enable bridge multicast filtering then you need to choose mac or ip group.Once that decision is made you can enable the switch as a querier or not through the IGMP snooping
Depending if you choose mac or IP group you should dynamically see the devices in the respective section mac group address or the ip multicast group address. This is particularly true through the IGMP snooping feature set.
It's one of those things you have to tinker with to make it work, I don't think you'll get a definitive answer.
If you want to test if multicast works at all, you can choose to flood it out every port (without the filtering).
To answer about the vlans, it is still a layer 2 operation, you would need a layer 3 device to route the vlans which I am assuming you have a layer 3 capable device somewhere that can allow the packets to route. While the IGMP of the switch will forward multicast packet to their respective group based off the packet info and what it learns in the tables.
-Tom Please mark answered for helpful posts
Please mark answered for helpful posts
Introduction:Topology Diagram:Configuration Overview:Related
Information: Introduction: This document describes how to connect SG300
with Catalyst switch via STP. Spanning Tree Protocol (STP) is a Layer 2
protocol that runs on mainly on switches. The spec...
The Sx500 Series Stackable Switches offers different port features. You
can add security to a port, make the port more energy efficient, map a
VLAN to a port, make a port available or not to a specific network
portion, and so forth. The next set of articl...
On a technical level, Cisco 300 Series is far superior to the HP 1910
and 2530 products. This document provides evidence that Cisco has >100
features not supported by the HP platforms. Check this out and decide
for yourselves. Notes (2/5/2014):- Informati...