Questions tagged [multicast]
For questions about multicast communications and protocols.
240 questions
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Is multicast on the public internet possible? And if yes: How?
Is it possible to use multicast on the public internet? If yes: How? Are special IP addresses required and where do you get them from?
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What are the benefits and cons of IGMP snooping?
Our new router is asking if we want IGMP snooping enabled. Not being familiar with this, I looked to the internet and got the following wiki description:
IGMP snooping is the process of listening to ...
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PIM-SM with BSR over SSG5 VPN tunnel
I've created a lab to troubleshoot an issue I'm having with PIM-SM and BSR. There are two sites connected via two Juniper SSG5s (6.3.0r17) with just enough configuration to focus on the problem at ...
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Why isn't multicasting more popular?
Multicasting seems provide an efficient method of routing networking traffic from a source to multiple end users, especially at this moment in time with teleconferencing, streaming media, online ...
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Can I truly multicast over WIFI?
Am streaming UDP over wifi (5ghz) - approx 1.5k/packet... trying to stream to ~10 devices simultaneously, with extremely low latency..
As I understand Wifi, it can never true multicast, as each ...
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OSPF over vPC on Nexus7k
I'm trying to help a friend with some Nexus issues.
The topology is like this:
Cat 3750 stack -> vPC -> 2x N7k -> LACP -> Fortigate firewall cluster
The 3750 stack is running OSPF to both the ...
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why TTL value 1 in IGMP
why TTL value 1 in IGMP protocol and what are the different values possible in TTL section for Multicasting.
What I got from the google is that if TTL value is 1 then it won't leave the LAN, but if ...
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PIM-SM multicast and HSRP/VRRP
I need to set up a PC to listen in on a multicast (PIM-SM) data feed. The multicast sources and (anycast) Rendezvous point are behind a "HSRP/VRRP address" on the other side of a WAN link. (The ...
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Setting up PIM Sparse mode
I am working on trying to setup our network for multicast traffic. In the coming months we will be installing new equipment that sends out multicast traffic. In the past we have only had 1 VLAN so we ...
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KEMP load balancers using UCARP (VRRP) - multicast MAC address not being picked up
Alright - been battling this for at least 20 hours consecutive.. Sorry if this seems like a long rant, or a blog post, but I'm getting to the point of exhaustion.
So, here's the deal. We're using KEMP ...
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switchport block multicast vs storm-control multicast
I'm not sure what is the difference in behaviour between switchport block multicast and storm-control multicast and I don't think cisco elaborates the difference very well in their documentation, ...
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How to control unwanted UDP traffic (Broadcast & Multicast) on Cisco Router 2911?
Please suggest, we are getting UDP traffic either broadcast or multicast in router 2911 which cause 95%+ utilisation of the router. And we got error in link and business impact due to this. Company ...
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Is multicast possible in tcp?
I got an assignment to implement unicast, multicast and broadcast in UDP or TCP in java, so I searched for it and I only got UDP implementation of multicast.
My question is following:
Is there ...
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IGMP snooping and link-local multicast addresses
I have a network which has many devices sending data to 224.0.0.225 on a VLAN which spans multiple switches. Each device (aprox 12 of them) is sending reporting data at roughly 500-600 kbps. Each port ...
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Which address should I use to receive a UDP wireless multicast with iperf?
On computer 1 (192.168.1.3):
I made a route to be sure that my communication pass through my wireless card
sudo route add -net 239.0.0.0 netmask 255.255.255.0 dev wlan2
I launch iperf with the ...
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