By setting priority to a higher value on the router that has lower Router ID, it is easy to have DR/BDR router become Slave during Exstart phase. Looking into RFC2328 and specifically the fact that Master is the only one who increments sequence numbers during DBD exchange, I am having difficulty to understand how will LSA exchange happen when DR/BDR are not Master. If I plug a new router into multiaccess segment and it will have higher Router ID, than DR on that segment (so it will be Master in that relationship), how will it be able to receive all the LSUs from the DR?
[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...