Hello Kim,
Look for T bit flag "show ip mroute" will indicate if SPT is on or off. Unless disabled, SPT turnover wil happen. Not necessary , It will follow IP routing table at every hops.( if RP is in path, it will pass through RP) Date: Sun, 24 May 2009 16:11:48 +0200 Subject: Re: [OSL | CCIE_RS] (S,G) entries in SM From: [email protected] To: [email protected]; [email protected] Hi, Thanks for the reply. I guess what im asking is, will an (S,G) entry always point to the SPT, and in that regard, will only be present after a SPT switchover? Is it possible to define it such that traffic will always flow through the RP (and again, not create any (S,G) entries)? Sincerely, Kim Pedersen On Sun, May 24, 2009 at 3:19 PM, prakash patel <[email protected]> wrote: (S,g) entry remains same if source exists and source is already registered with RP. Check out SPT bit under show ip mroute. CHeck out incoming and outgoing interfaces. It changes during SPT turnover ALso check the field messages SPT bit, Prune etc..it will be indicated under show ip mroute. (*,G) for unknown and RP interface. CHeck your layer 3 to source. Traceroute. and then check with entry in the morute. You will see RPF failure if mismatch. Date: Sun, 24 May 2009 13:13:29 +0000 From: [email protected] To: [email protected] Subject: [OSL | CCIE_RS] (S,G) entries in SM Hi All, I am having a bit of trouble understanding (S,G) entries in PIM-SM. I know that the (*,G) entries points toward the RP, but will the (S,G) entries in routers always point toward the source (after a SPT switchover)? Even though my material states that SM routes based on (*,G) entries, it would seem to me, that the (*,G) entries are used in SM to create the actual (S,G) entries? Are there any command to disable the SPT switchover completely, so I could see if the (*,G) entries alone could route the traffic? Wish i could explain it better. Thanks for all the help, Sincerely, Kim Pedersen Windows Live™: Keep your life in sync. Check it out. -- // Freedom Matters _________________________________________________________________ Hotmail® has a new way to see what's up with your friends. http://windowslive.com/Tutorial/Hotmail/WhatsNew?ocid=TXT_TAGLM_WL_HM_Tutorial_WhatsNew1_052009
