Skip to main content

Questions tagged [multicast]

For questions about multicast communications and protocols.

14 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
15 votes
0 answers
716 views

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 ...
user1038451's user avatar
4 votes
0 answers
449 views

STB generate IGMP Leave without reason

In my network STB generates IGMP Leave (in STB logs "End of Stream") without any reason or there is something what I don't understand. There is one exeption STB directly connected to PIM (ASR920) ...
kyob's user avatar
  • 91
4 votes
0 answers
4k views

Regarding vPC Dual Active or Split Brain scenario

Consider the below topology: Imagine that both the vPC peer keepalive link and vPC peer link have gone down. I am trying to understand how will that lead to unpredictable traffic flows or loops. ...
fsociety's user avatar
  • 905
2 votes
0 answers
145 views

No entry in the multicast RIB while PIM join is present

I have a router which receives multicast traffic from the source over a multicast LSP(signaled by LDP): root@PE3> show pim join detail Instance: PIM.master Family: INET R = ...
Martin's user avatar
  • 1,109
2 votes
0 answers
488 views

IGMP Snooping issue. probably

I have multicast hosts that keep leaving a group, only to join back up which results in loss of video feeds. The network consists of a variety of Cisco 2960's and a Cisco 9300 w/ PIM Sparse mode set ...
Rnet's user avatar
  • 21
1 vote
0 answers
36 views

Should a multicast router punt the multicast packets in addition to routing those packets if the router has an interface in this multicast group?

If the multicast router has the (S,G) route present and the same destination address G is also set on one of the router interfaces, then should the router send the packets addressed to group address G ...
Martin's user avatar
  • 1,109
1 vote
0 answers
31 views

What are the triggers for PIM-DM prune and assert messages?

There are articles explaining the PIM-DM mechanics, and they only confused me. Considering the most common topology, that of three routers, connected to each other like a triangle as such: R1 -- R2 \ ...
Marcus's user avatar
  • 191
1 vote
0 answers
92 views

How do I set up IPv6 multicast over an MPLS carrier?

I'm setting up an MPLS carrier with VPNs in GNS3, using Cisco 7200 routers. Exact version I'm using is C7200-ADVIPSERVICESK9-M Version 15.2(4)S5, but I'm willing to upgrade/change if that's needed. On ...
Thomas's user avatar
  • 121
1 vote
0 answers
422 views

Multicast traffic through Cisco3850

I have a test scenario and trying to pass multicast traffic through Cisco 3850 according to the following diagram: ![enter image description here MC source: several MC IPs such as 232.0.26.0, 232.0.27....
Gianna's user avatar
  • 11
1 vote
0 answers
205 views

Which one is the best method when it comes to multicast (stub)?

I want to set my device to L3 mode (specifically, 3560X-S). In particular, I want yo configure multicast. Because I haven't been configuring as multicast, I'm here to ask you about multicast ...
SK.Kwon's user avatar
  • 63
1 vote
0 answers
1k views

Cisco SG300 switch identifies itself as duplicate IP address

We've enabled IGMP snooping on one of our VLANs. The configuration used is: bridge multicast filtering ip igmp snooping ip igmp snooping vlan 1 ip igmp snooping vlan 1 querier We're now seeing the ...
Matty Brown's user avatar
0 votes
0 answers
111 views

static IP multicast routing with IPSEC

for a specific application, I need to route a multicast flow with IPSEC (we use a CISCO ASA 5508 firewall), I am not a network expert then I will try to explain as best as I can our issue I don't need ...
Gcomel's user avatar
  • 1
0 votes
0 answers
90 views

Does multicast over tunnels (e.g., GRE) require IGMP/MLD?

When subscribing to a multicast group on a tunnel device such as a GRE tunnel, are you supposed to participate in IGMP/MLD over that tunnel in order to announce your membership in the multicast group? ...
joshlf's user avatar
  • 327
0 votes
0 answers
66 views

Issue with PIM-SSM Multicast Configuration ISR4431s

I have an issue with my PIM-SSM multicast configuration using ISR4431s.    I am wanting to forward broadcast data from an application from one VLAN in on the multicast source to another VLAN on a ...
Joe Hughes's user avatar