Fall routing on X460

[Yurij]

today started having problems with routing on the X460-48x
is lost "IP Forwarding Enabled" on interfaces, in consequence of which falls OSPF ...

after the command "enable ipforwarding" - all restored
firmware 15.3.3.5 v1533b5-patch1-9

can anyone know why and what to do?

[Dave_E_Martin]

We had this issue also. We removed the default SNMP communities from all switches (not knowing if that was the actual problem, but we discovered that some switches did not have their default communities removed while investigating).

Unfortunately, this does not show up in the configuration one way or the other. You can "show management", but I'm not sure at the moment to see what the actual community strings are that are defined.

configure snmp delete community readonly all configure snmp delete community readwrite all configure snmp add community readonly yourcommunitystringWe have not had the problem so far, since doing this.

We are a bit annoyed that the switches ship with these enabled, and they DON"T show up in the configuration.

[PARTHIBAN_CHINN]

You can use snmp acces profile and allow only valuable request.

[Sumit_Tokle]

IP forwarding would not disable by default. There could be possibility that trigger could come from SNMP.

Is it possible for you to disable the SNMP access and monitor the switches?

[Sumit_Tokle]

Open case with TAC.

[PARTHIBAN_CHINN]

This is something new.
Is it ok to contact TAC ? with the below information
1.configs
2.Network topology
3.when was the software upgraded
4.when did this issue occur? [logs ,list of activities carried out in network]