- Community Home
- >
- Networking
- >
- Legacy
- >
- Switches, Hubs, Modems
- >
- Re: IGMP config - how to?
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-11-2010 11:36 AM
тАО10-11-2010 11:36 AM
Re: IGMP config - how to?
When I switch the client back to the first switch SA004HP00_1 then suddenly the stream works on this switch too, but not on SA004HP00_2.
But when I power off all switches and restart them then streaming on SA004HP00_1 doesn't work again.
It seems that the switches have to learn something but after a restart they have lost this information and need to learn again.
By the way why does the switch loose the ip I set for VLAN 3 everytime I power off the switches?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-11-2010 11:49 AM
тАО10-11-2010 11:49 AM
Re: IGMP config - how to?
After restart they once again must receive IGMP report from host.
Can you copy configurations of all your switches, at least part of config for VLANs 1 and 3?
"By the way why does the switch loose the ip I set for VLAN 3 everytime I power off the switches?"
You need to save your running configuration:
copy run start
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-11-2010 12:27 PM
тАО10-11-2010 12:27 PM
Re: IGMP config - how to?
I will do that!
copy run start -> doesn't work!
Maybe there is another command, do you have any idea?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-11-2010 09:10 PM
тАО10-11-2010 09:10 PM
Re: IGMP config - how to?
Instead of copy run start, use:
wr mem
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-12-2010 07:50 AM
тАО10-12-2010 07:50 AM
Re: IGMP config - how to?
write memory which is the long version of wr mem.
Moreover the problem is solved:
A querier was need in my topology. Therefore one Switch needs an IP address. -> see attachment.
After I have configured an IP address for one switch, the other switches register the configured switch as querier.
Thank you very much for your help!
Regards Mutex
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-12-2010 12:46 PM
тАО10-12-2010 12:46 PM
Re: IGMP config - how to?
I also read the docs and copy in my first answer information about querier. :)
But I also remember that in real life I did not face such a problem (I think this is because at least one switch always had an IP). So I was not quite sure about the querier.
For me it also good to recall that querier is always needed.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-12-2010 11:34 PM
тАО10-12-2010 11:34 PM
Re: IGMP config - how to?
This is to forward multicasts only to the subbscribed ports an NOT "flood" multicasts to all ports on the switch (all switches).
But there needs to be a DR (designated )router for the multicasts in the network for correct operation of IGMP(snooping).
It's not the switch that specificly need an ip-adress.
Without DR the switch that is NOT directly connected to the multicast source cannot determine what (uplink) port to subscribe to the multicasts.
By giving some switch an ip-address in the network, this takes the DR function and IGMP can forward the multicasts to the subscribed ports.
As such the switch closest to the multicast source seems the best candidate for the ip-adress.
A section from this document may clarify things: http://www.h3c.com/portal/Products___Solutions/Products/Switches/H3C_S5810_Series_Switches/White_Paper/200912/656291_57_0.htm
PIM-DM assumes that at least one multicast group member exists on each subnet of a network, and therefore multicast data is flooded to all nodes on the network. Then, branches without receivers downstream are pruned from the forwarding tree, leaving only those branches with receivers. This ├в flood and prune├в process takes place periodically, that is, pruned branches resume multicast forwarding when the pruned state times out and then data is re-flooded down these branches, and then are pruned again.
- « Previous
-
- 1
- 2
- Next »