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Forum Discussion
M4300 service port segregation issue?
Hi, I faced to a weird issue with M4300 service port, please refer to my diagram at bottom.
The BMC network has no problem before I deploy a new M4300-8x8f.
When I configured all port as diagram shown, most of ip on BMC subnet got unresponsive randamly, only M4300 OOB IP accessible without problem.
If I shutdown the 10G LACP port at Cisco side (that cut off the communication to M4300 10G port), all BMC ip back to normal operational, but M4300 OOB became unaccessible now.
The only possibility what I knew about this situation is layer 2 looping. But according to manual said about M4300 OOB, it has segregated from operational port, and should not caused to STP or looping condition on this diagram.
Is there any idea about what is root cause and how can I compromise with it?
ps. I did not configured any management IP on M4300, just leave it as default DHCP, and configured service port IP only.
4 Replies
Hi raytracy,
Welcome to the community! :)
Kindly answer the questions below:
a. What is the LAG state on the 10G LACP ports on both M4300-8X8F and Cisco switch?
b. On the M4300-8X8F, what is the Hash Mode of the LAG?
c. On the M4300-8X8F, is STP Mode enabled or disabled on the LAG? How about on the Cisco switch?
d. On the M4300-8X8F, are the 10G LACP ports set as tagged ports?
e. What is the current firmware version of the M4300-8X8F?
Let me share the forum thread below and it might help as reference:
https://community.netgear.com/t5/Managed-Switches/M4300-x-Switch-to-Switch-LACP-LAG/m-p/1669182
Regards,
DaneA
NETGEAR Community Team
a. Cisco side: LACP link state is ON, and both port are active member.
M4300 side: LACP mode enbled, both port Link status are Link up.
b. M4300 LACP Hash mode is: 6?) Src/Dest IP and TCP/UDP port fileds
Cisco side LACP Hash mode is: IP/Mac address
c. M4300 LACP set as Trunk allowed VLAN=1-4093, VLAN Tag=disable
Cisco set LACP as Trunk, VLAN 1-20 tagged, 21-4094 Inactive VLAN
BTW, if I blocked the VLAN 1 on Cisco side LACP by set it as Untagged (leave only 2-20 tagged), there is no problem to access all BMC IP, it seems cut off looping issue.
d. No, since I don't know how to set M4300 LACP as tagged, I have not configured it yet.
e. M4300 firmware version: 12.0.7.10, B1.0.0.11
Thanks!
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