Lost connection and dropping packages on my network


I actually have a SWITCH CORE EXTREME NETWORKS, access switches

3 replies

Userlevel 7
Hello,
Is there some more information about the problem that you can provide?

At first guess however, I'd suggest checking for a network loop if you're seeing lost connections and dropped packets.
I have connected to my BD-8806 core switch a switch from another manufacturer, at certain times of day behind this switch users lose connection, I see quite Packet Drop in BD-8806 interface connecting to another switch.
This is given 1 - 2 times a day, especially at noon.

CORE_M_CULTURA.20 # show ports 1:36 congestion no-refreshPort Congestion Monitor
Port Link Packet
State Drop
================================================================================
SW_NO_EX> A 21796416
================================================================================
Link State: A-Active, R-Ready, NP-Port Not Present L-Loopback
* CORE_M_CULTURA.21 # show ports 1:36 utilization bandwidth
Port Link Link Rx Peak Rx Tx Peak Tx
State Speed % bandwidth % bandwidth % bandwidth % bandwidth
================================================================================
SW_NO_EX> A 100 0.38 0.38 10.33 10.33
================================================================================
> indicates Port Display Name truncated past 8 characters
Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback

I have ELRP enabled on my core, and I do not see any log loop, all my users are in default vlan.

that could be the problem?
Thanks, i found the problem. Some PCs generated too IPv6 multicast Listener Report flooding.

Here is a link about the problem.

https://communities.intel.com/thread/48051?start=0&tstart=0

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