error ipv4 multicast entry
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‎12-28-2015 06:52 PM
I open a GTAC case, I just put in this x440 stack (today first day of production) and I got the ipv4 multicast entry error any suggestions?
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‎12-28-2015 07:16 PM
Thanks for your quick response, I enter the second one, (ver 15.7.1.4) and I'll monitor to see how it responds
Thanks
Thanks
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‎12-28-2015 07:15 PM
This does work very well. I have not seen the error messages on any of our stacks after making the changes Bill suggests.
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‎12-28-2015 07:09 PM
Sorry... Here is the full article:
Procedure:
Option conserves usage of the hardware Layer 3 multicast forwarding table:
configure igmp snooping filters per-vlan
(to set it back to default set it to per-port)
After changing the IGMP snooping filters from per-port (default) to per-vlan you can disable IGMP snooping on VLAN's where IGMP snooping is not required:
disable igmp snooping vlan
Stores multicast entries in the format (* AnySourceIP, GroupIP, VlanId), which is also referred to as (*, G):
configure igmp snooping forwarding-mode group-vlan
(to set it back to default configure it to source-group-vlan)
Routes with longer network masks might not be necessary if they are a subset of other routes with shorter network masks using the same gateway(s). When IP route compression is enabled, these unnecessary routes are not provided to the Forwarding information Base (FIB).
enable iproute compression
Additional notes:
Beginning in EXOS 15.4, the command configure igmp snooping forwarding-mode group-vlan was replaced with configure forwarding ipmc lookup-key group-vlan.
Hope it helps!
Bill
Procedure:
Option conserves usage of the hardware Layer 3 multicast forwarding table:
configure igmp snooping filters per-vlan
(to set it back to default set it to per-port)
After changing the IGMP snooping filters from per-port (default) to per-vlan you can disable IGMP snooping on VLAN's where IGMP snooping is not required:
disable igmp snooping vlan
Stores multicast entries in the format (* AnySourceIP, GroupIP, VlanId), which is also referred to as (*, G):
configure igmp snooping forwarding-mode group-vlan
(to set it back to default configure it to source-group-vlan)
Routes with longer network masks might not be necessary if they are a subset of other routes with shorter network masks using the same gateway(s). When IP route compression is enabled, these unnecessary routes are not provided to the Forwarding information Base (FIB).
enable iproute compression
Additional notes:
Beginning in EXOS 15.4, the command configure igmp snooping forwarding-mode group-vlan was replaced with configure forwarding ipmc lookup-key group-vlan.
Hope it helps!
Bill
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‎12-28-2015 07:01 PM
The following GTAC knowledge article should fix your issues:
https://gtacknowledge.extremenetworks.com/articles/How_To/Multicast-Entry-not-Added-Hardware-Table-F...
Bill
Admin edit: Fixed link
https://gtacknowledge.extremenetworks.com/articles/How_To/Multicast-Entry-not-Added-Hardware-Table-F...
Bill
Admin edit: Fixed link
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‎12-28-2015 07:01 PM
How does ... command change the amount of multicast entries? I didn't understand the command well!
