there might be situations where you need more than one OSPF process. Assume one company buying another company, both using OSPF. You can´t simply connect the two OSPF domains so you might want to start with a router running two OSPF processes one adjacent to each company and performing redistribution.
Another example would be OSPF on a PE router in an MPLS VPN environment. The provider would peer with several customers, who should NOT be getting connectivity. Again you need several OSPF processes on one router (PE).
And the process ID is used to sort things IOS wise on this router.
[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...