Mitchell, 2) Their is no GUARANTEE that any Restart will be sucessful, that the LSDB will be stable and/or that helper(s) exist.
I wanted an automated and deterministic number 2. Any ideas or any attempts in the direction of 2 ? With Regards, Abhay ----- Original Message ----- From: "Erblichs" <[EMAIL PROTECTED]> To: "Abhay D.S" <[EMAIL PROTECTED]> Cc: <[email protected]> Sent: Saturday, October 20, 2007 3:43 AM Subject: Re: [OSPF] Cascaded Graceful Restarts with NSF for OSPF protocolQuestion > Abhay D.S., et al, > > Their are multiple issues that need to be addressed > before you can even attempt to sucessfully perform > a cascade restart: > > 1) NSF is a patented process that is specific to > one well-known company. > > 2) Their is no GUARANTEE that any Restart will > be sucessful, that the LSDB will be stable and/or > that helper(s) exist. > > 3) It would be my initial expectation that > resumption of recieving "aliveness" from a > restarting router COULD be a passive method. > > Mitchell Erblich > ----------------- > > "Abhay D.S" wrote: > > > > hi all, > > > > Suppose I am providing real-time transactions over IP in a > > non NSR environment(I dont invest much on getting a backup RP i.e). > > > > But I have NSF, owing to the ease of which OSPF can be used, I > > use OSPF to manage connections to WAN. > > > > And I have bought new I/0 modules which require a restart for > > all my routers for proper installation. > > > > Luckily, I have inservice upgrade on the boxes. > > > > Assuming that I am a new operator without any certifications under > > my belt, I dont have a beautiful NMS with colored buttons. > > > > But I must implement the new I/O cards and its features without disturbing > > the users who are using the network for routing transactions such as data > > backup over network or voice forwarding and other distributed applications > > running over TCP/IP using my network. > > > > I want to graceful restart all my routers one by one, called as cascaded > > re-starts, how can I make sure the transition is done seamlessly. > > > > I want the "this thing" to be automatic, since each router is graceful > > restarted > > and then then the next one is re-started and then the next one, > > automatically. > > > > I can write a script to do that, but I am not sure the forwarding will be > > safe, > > because it is difficult to control the network transient conditions. > > > > Any mechanism available ?. > > > > Thanks and Regards, > > Abhay > > > > _______________________________________________ > > OSPF mailing list > > [email protected] > > https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list [email protected] https://www1.ietf.org/mailman/listinfo/ospf
