Soldato
- Joined
- 27 Oct 2006
- Posts
- 7,642
- Location
- London
Hate networks and network engineering - it's definitely my weak point but I don't know why I have this problem
I have several VLANs all working fine except for one, when enabled (in this instance enabled on the 5th of November) the interface drops packets and I can't understand why ?
Any idea what could be causing it, also from the charts you can see a cyclic pattern which doesn't match any process I have running.
Bizarre, maybe some networking folk have seen patterns like this before ?
This VLAN is setup up as a port PVID on my switch which is connected my ISP router's switch
MTUs are all set to 1500
The only thing I see from tcpdump is the following STP request what Ai tells me indicates that the ISP router wants to be the primary switch
Any thoughts especially around the packet drop chart

I have several VLANs all working fine except for one, when enabled (in this instance enabled on the 5th of November) the interface drops packets and I can't understand why ?
Any idea what could be causing it, also from the charts you can see a cyclic pattern which doesn't match any process I have running.
Bizarre, maybe some networking folk have seen patterns like this before ?
This VLAN is setup up as a port PVID on my switch which is connected my ISP router's switch
MTUs are all set to 1500
The only thing I see from tcpdump is the following STP request what Ai tells me indicates that the ISP router wants to be the primary switch
Any thoughts especially around the packet drop chart
Code:
20:46:49.660004 STP 802.1d, Config, Flags [none], bridge-id 0001.0x:cx:xx:xx:xx:xx.8003, length 35
