There are two ABRs connected to Area0 and Area 200. The Routers are connected with a L-3 point-to-point link (Area 200). The Loopback Interfaces are in Area 200, too. Each access switch has a redundant connection to each Router. OSPF traffic should only transfer over the p-2-p link, so the Interfaces to the access switches are OSPF passive interfaces.
If the point-to-point link fail, each router receives OSPF LSAs over Area 0, which say´s there are an other Router connected to the same area and networks, but there are no intra area connection to this router !!!
I had test it, and there was always a connection to the access switches, but anyone know what´s in detail the reaction of OSPF in this scenario and is there an other scenario who affected the network connections ???
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...