we have 6509 switch working as Core which is connected to Juniper firewall and running ospf over the point to pint connectivity.the firewall is giving default route in ospf to core switch while core switch is providing lan sisde routes to firewall.multiple subinterfaces have been configured over this link and each subintefcace is part of diffrent vrf.
physical connectivity is little diffrent in which core switch is connected to inside interface of Packetier (Just hub kind of device) and outside dinterface of packetier is connected to firewall inside interface.Point to point link configured between Core anfd firewall packetier is just L2 device.
for someof the processes we get follwoing error in core switch.
Local7.Notice,y.y.y.y,"13241: 17w6d: %OSPF-5-ADJCHG: Process 36, Nbr x.x.x.x on GigabitEthernet1/2.36 from LOADING to FULL, Loading Done"
Local7.Notice,y.y.y.y,"13242: 17w6d: %OSPF-5-ADJCHG: Process 9, Nbr x.x.x.x on GigabitEthernet1/2.100 from LOADING to FULL, Loading Done"
same time no error is observed is juniper firewall and even the connectivty is not affected in terms of data transfer.
can anyone please let me know why the loading to full is happening in between.ospf is not going down completely.also these messages is observed with very less frequency (once in 15 days)
traffic can be higher in one specific direction, as usually it happens, so that is the only one affected or the first affected.
difficult to say more.
Hope to help
>> In packetier bandwidth is allocated for each customer and each customer is part of diffrent ospf process (separate vrf).is it the case that the bandwidth allocated for particular customer is getting chocked and because of same some lsp needs retransmition and because of the same w eget those loading-full state.
you have probably found a possible cause of this. You have described the packetier as a L2 device in first posts, now you add that it has the capability to provide a specific bandwidth to each customer /VRF/ OSPF process.
Does it shape or police the traffic?
Is the packetier able to discriminate OSPF packets over user traffic or does it treat all traffic in a Vlan/VRF in the same way?
I think it is able to discriminate OSPF packets or it is doing shaping or you would see OSPF neighborship falling down when traffic for a customer is near the configured BW.
In case the packetier is configured to discriminate OSPF traffic and there is a traffic class for OSPF you need to provide space for LSA refresh.
Every 30 minutes an LSA is regenerated by the originator of the LSA even with no topology change.
Hope to help