We are doing PIM-Sparse-Dense on a VLAN interface, which has no defined IP. Since the switch is a L3, I am presuming that not assigning an IP to the VLAN INT means that it's acting as a L2 route in all intent and purpose?... However, after running the following commands, we were able to get Multicast to work:
Interface Vlan 540
ip address 192.168.30.8
ip pim sparse-dense-mode
no ip igmp snooping
----> My question. After we enabled this and saw the MC packets come through, we issued a NO IP ADDRESS command (for various internal approval reasons) and the Multicast traffic continued to function. I stopped and started the Multicast stream and it worked for about 20 minutes after the IP address was removed from that VLAN Interface. Eventually the stream ceased to function after that timeframe.
My question - can we establish/define a static Multicast Route (or ARP Route) to handle this 'routing' without actually assigning an IP to the Interface itself. I understand conceptually how this needs to look (I'm just not sure where it needs defining), but if there is a way to handle the request in a static table entry, that would be preferred.
ARP may not be the right reference.. but I guess I just need to know if this can be done, how is the best & most effective way (besides assigning an IP to that Interface directly)?
Are you looking to transmit the multicast stream locally, meaning in the same vlan ? If this is the case you need to either enable igmp querier ("ip igmp snooping querier") or PIM on that interface both requiring that you have an IP address configured. On the other hand, if you already have an L3 device in that subnet that can become the IGMP querrier then you don't need an IP on the 6500 vlan interface.
The querier's purpose is to poll the multicast hosts periodically. When the multicast hosts respond with Membership Reports igmp snooping registers them and sends the multicast traffic to the ports.
If your goal is to transport multicast traffic between vlans you must use PIM and have an ip address on the vlan interface.
Agile Networking with Cloud-managed IT [Meraki The Future is here] Cisco Meraki The Future Is Here: Agile Networking With Cloud-managed IT Your customer’s employees are in hybrid workstyle from home, the road, and the office and IT teams need t...
1. Smart Licensing
1.1. What is Smart Licensing?
A. Cisco Smart Licensing is a flexible licensing model that provides you with an easier, faster, and more consistent way to purchase and manage software across the Cisco portfolio and across your orga...
Cisco DNA - Cisco SD-WAN: Connect to any cloud, anywhere, securely Cisco offers on-prem and cloud-managed WAN edge solutions to meet these new demands. Connect any user to any application with integrated capabilities for multicloud, security, ...
Join us for this virtual event as cloud providers, integrators, ecosystem technology partners and customers discuss what tomorrow's cloud will be and what you need to know to prepare. Get ready to hear about innovations for faster operations, mult...
Let´s talk about spanning-treeLeave your comment in english and in your own language.------------------------------------------------Vamos falar sobre spanning-tree Deixe seu comentário em inglês e no seu idioma.