I could do with some help. I have two 4500 on separate networks, about 700 machines per network. They are both identical? hardware with supervisor IV engines and latest, April this year software. The config files match line for line. I have enabled ip igmp snooping on both, but only one populates the mac table. The other only has two batches of system macs listed. The network clients are identical - all run RedHat Enterprise 32bit.
I know I have said they are both the same but obviously they are not otherwise they would both route multicast.
Multicast is not the greatest topic, but can anyone give me an idea where to look for the problem. I thought I could flatten the duff switch but none of the commands appear to work. The bios proms are the same but very early revisions.
Cisco Digital Network Architecture Center Modules (Design Module)Part.3In this article, we are going to talk about the Cisco Digital Network Architecture Center design Module.Cisco DNA Center gives us the flexibility and scalability to configure mult...
Cisco 2509-RJ freezes during start-up I bought some Cisco 2509-RJ terminal server to work on my labs and was working fine. Today I turned it on and half way through starting up it seems to freeze. I can only find one instance of this happing to ...
Cisco Digital Network Architecture Center Modules(Design Module)Part.2In this article, we are going to talk about the Cisco Digital Network Architecture Center design Module. Cisco DNA Center gives us the flexibility and availability to con...
Connectivity Design considerations and recommendation
1.Management Access connectivity
If there is a dedicated OOB management path, consider connecting to CIMC and MGMT port.
If OOB path is not available, Connect the dedicated Management port to LAN Swi...