Hi,
We're using a stack of Force10 MXL 10/40GbE mezzanines on a Dell PowerEdge M1000E blade enclosure, which are linked to a stack of Dell N3024 managed switches.
In this setup, the N3024 stack is linked to both the M1000E CMC controllers via Ethernet and with the MXL stack using the N3024 10 GbE rear IO cards.
The MXL stack works great with the N3024 stack, but we're having an issue related to the MXL management interface since the initial setup, in 2015.
When we try to connect to the MXL management IP using SSH, it works one third of the time... and the connection is not stable and does not work for more than 30 seconds... It's not a big issue, since we can connect to it using the CMC internal bridge whenever we need it, which works great.
SNMP is configured on the MXL stack and, you guessed it, it does respond one third of the time... which isn't very practical for monitoring purposes...
The three components (CMC controllers, MXL switches, N3024 switches) have the latest firmware installed (as of August 3rd 2018).
Earlier this week, I investigated the issue and noticed that when I log in to the MXL using the CMC bridge, and then ping an IP address, the management IP responds correctly and remain stable for minutes... until the ping stops...
Here's our MXL configuration about the management interface :
interface ManagementEthernet 0/0 ip address 10.255.254.31/23 no shutdown ! management route 0.0.0.0/0 10.255.254.1 !
In addition, if we connect using SSH to the Dell N3024 switches, the MXL can always be pinged/SSH connected/SNMP probed without issues.
We don't know where to begin searching...
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