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Problems with LAG von M4300-8x8F switches
Hello, we have 4 M4300-8x8 Switches in two server rooms. In both rooms there are 2 Switches stacked together. These two stacks are connected by LAG (one cable per switch). Originally the LAG consist...
Hello,
thank you for the reply. I only tried Hash mode 7 after I encountered the problems. But I will of course set it back to 3.
I will try to reboot the switches on the weekend. Then I will be able to use the new firmware and the lag will probably work anyway.
Thank you for your help!
Hello,
the 4 ports in question are all members of the lag group:
| 1/0/1, 1/0/9, 2/0/1, 2/0/9 | 1/0/9 |
The problem is, if i connect more than one port on the fly, I get connection errors. It worked fine in the beginning so I suspect it would work again if i gut shut down the switches, connect the lag ports and then start up the switches again. Unfortunately that is not possible at the moment and I would expect the lag group to accept changes on the fly.
By the way, the CLI command did not work (it would not accept the "1" after the command, but I can see everything in the web interface.
Thank You,
Peter
Hi ptoschi,
For further analysis, Could you please provide the tech-support file of the Switch? Include two stacking switches.
How do I send tech-support files from my Managed Switch to NETGEAR community moderators?
http://kb.netgear.com/app/answers/detail/a_id/31439
Thank You very much for your help. I've sent the files to switch_support@netgear.com
Hi ptoschi,
Thanks for immediately response!
Yes, it's enough.
And I notice some ports are blocking by STP protocol. So please run below CLI command to check STP status(plug-in all LAG member ports, include copper and fiber port):
1. show spanning-tree summary
2. show spanning-tree mst port summary 0 active
3. show port-channel 1 (you mean this command cannot be executed on console port?)
Besides: The firmware is too old on your 4 switches, could you please upgrade to latest image and try again?
The latest firmware link is image
Thank You for your answer. I've uploaded the new firmware. Unfortunately I am not able to reboot the Switches at the moment since they are productive. For the same reason I cannot plug in all of the lag port cables - I will try to do so tomorrow noon. I disabled stp because with my old netgear switches the net went down for a minute when I rebooted one switch of the stack. I hope this doesn't have with stp disabled, but I am not willing to find out at the moment.
Here is the output of the commands you told me:
(Server Switch OG 1) >show spanning-tree summary
Spanning Tree Admin Mode.......... Disabled
Spanning Tree Version............. IEEE 802.1w
BPDU Guard Mode................... Disabled
BPDU Filter Mode.................. Disabled
Configuration Name................ ****
Configuration Revision Level...... ****
Configuration Digest Key.......... ****
Configuration Format Selector..... 0
No MST instances to display.
(Server Switch OG 1) >show spanning-tree mst port summary 0 active
STP STP Port
Interface Mode Type State Role Desc
--------- -------- ------- ----------------- ---------- ----------
1/0/1 Enabled PC Mbr Discarding Disabled
1/0/3 Enabled Manual forwarding Disabled
1/0/5 Enabled Manual forwarding Disabled
1/0/8 Enabled Manual forwarding Disabled
1/0/9 Enabled PC Mbr Discarding Disabled
1/0/11 Enabled Manual forwarding Disabled
1/0/15 Enabled Manual forwarding Disabled
1/0/16 Enabled Manual forwarding Disabled
2/0/1 Enabled PC Mbr Discarding Disabled
2/0/3 Enabled Manual forwarding Disabled
2/0/6 Enabled Manual forwarding Disabled
2/0/8 Enabled Manual forwarding Disabled
2/0/9 Enabled PC Mbr Discarding Disabled
2/0/13 Enabled Manual forwarding Disabled
2/0/14 Enabled Manual forwarding Disabled
2/0/16 Enabled Manual forwarding Disabled
lag 1 Disabled Manual forwarding Disabled
(Server Switch OG 1) >show port-channel 1
^
% Invalid input detected at '^' marker.
(Server Switch OG 1) >
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