Sun environment - E250's, Ultra 60's & some Ultra2's, a couple of PC's.
Application is multicast driven.
Bringing the lab up from cold start, all devices properly register for multicast. After about 5 minutes, some of the GigE devices time out (Ultra 60's all time out, some the of the E250's time out). None of the QFE devices time out.
Firing off a snoop on a host brings the connection back up, but it will time out once the snoop stops.
We are about to sniff connections via a Sniffer in pass-through mode to evaluate what's happening with IGMP traffic. We have brought the lab into single string (single router, single switch) configuration for troubleshooting purposes.
We are looking most closely at the registration process between host & switch, but nothing conclusive yet. Anyone bumped into anything similar?
This great Cisco article below details specific issues and an example of how one may encounter issues with PIM and multicast not propagating to partner routers because of HSRP configuration. Maybe it does not have anything to do with your issue, but just in case, here it is ... wild guess....
We were able to get the sniffer up in pass-through mode Friday afternoon.
The sniffer indicated that the IGMP joins are being sent properly from the switch, so it looks like the NICs are not responding correctly to joins. We have the card vendor looking at the problem.
BTW - we use MSDP for multicast distribution & HSRP for router failover and have had good luck with stream stability during regular ops and during failover. (At least in the FDDI environment - clearly we have some testing ahead of us!)
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
Im studying the 100-105 book by Odom and am currently on the topic of Port security. I purchased a used 2960 and I'm trying to follow a...
While deploying a number of 18xx/2802/3802 model access points (APs), which run AP-COS as their operating platform. It can be observed on some occasions that while many of their access points were able to join the fabric WLC withou...
I am going to design and build an LAN network under a tunnel underground with long distance between the switches.
I will have 2 Catalyst switches and 8 Industrial IE3000, and they will be connected with fiber.
For now I am planning on use Layer-2 s...