It's normal to see ,because in ngen mvpn PE will not advertise C-multicat route until a source active bgp route is received. Any share join will be then replaced with source join on that PE
/Lu ----- 原始邮件 ----- 发件人: Mohamed Raddahi <[email protected]> 发送时间: 2008年12月12日 17:32 收件人: [email protected] <[email protected]> 主题: [j-nsp] Problem with shared-joins on next-generation mVPN (BGPbased) Hi All, I came across following issue with shared-joins while trying to figure out how next-generation mVPN in R9.3 works: Setup: PIM-receiver --- PE1(M10) ------ PE2(M5) --- RP If I setup an (S,G) PIM receiver with S=RP, then I see the source-join bgp message being sent from PE1 to PE2. This is how the PIM and MVPN route look like in PE1: 7:1:1:100:32:10.20.1.2:32:224.8.8.8/240 (1 entry, 1 announced) *PIM Preference: 105 Next hop type: Multicast (IPv4), Next hop index: 262144 Next-hop reference count: 6 State: <Active Int> Local AS: 100 Age: 12:13 Task: PIM.mvpn1 Announcement bits (2): 1-mvpn global task 2-BGP RT Background AS path: I Communities: target:10.20.1.8:4 mvpn1.inet.1: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden) 224.8.8.8.10.20.1.2/64 (1 entry, 1 announced) *MVPN Preference: 70 Next hop type: Multicast (IPv4), Next hop index: 262144 Next-hop reference count: 6 State: <Active Int> Local AS: 100 Age: 12:13 Task: mvpn global task Announcement bits (1): 0-KRT AS path: I If I setup an (*,G) PIM receiver, the shared-join gets assigned the "no-advertise" community and no MVPN route is created at all: 6:1:1:100:32:10.20.1.2:32:224.7.7.7/240 (1 entry, 1 announced) *PIM Preference: 105 Next hop type: Multicast (IPv4), Next hop index: 262144 Next-hop reference count: 6 State: <Active Int> Local AS: 100 Age: 4:13 Task: PIM.mvpn1 Announcement bits (1): 1-mvpn global task AS path: I Communities: no-advertise target:10.20.1.8:4 Any idea why with the same configuration, source-joins get through the MVPN while shared-joins are blocked at the ingress PE ? What is so special about the shared-joins in the mVPN context ? (besides the RP that needs to be configured correctly) I have included below a trace of pim in PE1 at reception of the shared-join. Thanks in advance. JT. Apr 25 09:32:08.331814 PIM fe-0/1/1.2 RECV 92.0.0.2 -> 224.0.0.13 V2 JoinPrune to 92.0.0.1 holdtime 210 groups 1 sum 0x83c5 len 34 Apr 25 09:32:08.331862 group 224.7.7.7 joins 1 prunes 0 Apr 25 09:32:08.331881 join list: Apr 25 09:32:08.331910 source 10.20.1.2 flags sparse,rptree,wildcard Apr 25 09:32:08.332031 task_job_create_background: create prio 5 job PIM Nbr JP for task PIM.mvpn1 Apr 25 09:32:08.332102 background dispatch running job PIM Nbr JP for task PIM.mvpn1 Apr 25 09:32:08.332306 EVENT:DS_JOIN sgnode: 224.7.7.7.0.0.0.0 Flags-sm:wc:rpt: DSM: All macros empty US-FSM: US State:NOT_JOINED RPF: us interface - Pseudo-MVPN nbr addr - 0.0.0.0 J/P Attr: Flags:sm:wc:rpt: If:fe-0/1/1.2(p) Nbr:92.0.0.2 O:REMOTE-NBR Ht:210 AS: 0 Apr 25 09:32:08.332551 Create PIM CMcast: (224.7.7.7.0.0.0.0) IIF - gr-0/3/0.32769 Apr 25 09:32:08.332717 CHANGE 6:1:1:100:32:10.20.1.2:32:224.7.7.7/240 PIM pref 105/0 metric <Active Int> Apr 25 09:32:08.332770 ADD 6:1:1:100:32:10.20.1.2:32:224.7.7.7/240 PIM pref 105/0 metric <Active Int> Apr 25 09:32:08.332799 rt_close: 1 route proto PIM.mvpn1 Apr 25 09:32:08.332799 DS-FSM: IF/NBR fe-0/1/1.2/92.0.0.2() State NoInfo (NI) to Join (J) Apr 25 09:32:08.332885 task_timer_ucreate: created timer PIM.mvpn1_RxJoin flags <> Apr 25 09:32:08.332928 task_timer_uset: timer PIM.mvpn1_RxJoin <Touched> set to offset 3:30 at 9:35:38 EVENT:DS_IMMEDIATE_OLIST_BECOMES_NON_NULL sg state: 224.7.7.7.0.0.0.0 Flags-sm:wc:rpt: DSM: IMM_OLIST(*,g):NE US-FSM: US State:NOT_JOINED RPF: us interface - Pseudo-MVPN nbr addr - 0.0.0.0 US-FSM: US Event - JOIN_DESIRED_TRUE Current State - NOT_JOINED New State - JOINED US-FSM: RPF nbr old/new null/Pseudo-MVPN[0.0.0.0] US-FSM: SENDING TRIGGER JOIN US-FSM: SENDING PERIODIC JOIN FWD-FSM:OIF List: IIF - fe-0/1/1.2 (Added) FWD-FSM:OIF List: IIF - fe-0/1/1.2 (Added) Apr 25 09:32:08.333330 Create PIM CMcast: (224.7.7.7.0.0.0.0) IIF - gr-0/3/0.32769 Apr 25 09:32:08.333384 CHANGE 6:1:1:100:32:10.20.1.2:32:224.7.7.7/240 PIM pref 105/0 metric <Active Int> Apr 25 09:32:08.333411 rt_close: 1 route proto PIM.mvpn1 Apr 25 09:32:08.333411 FWD-FSM:OIF List: IIF - fe-0/1/1.2 (Added) Apr 25 09:32:08.333536 Create PIM CMcast: (224.7.7.7.0.0.0.0) IIF - gr-0/3/0.32769 Apr 25 09:32:08.333580 task_job_delete: delete background job PIM Nbr JP for task PIM.mvpn1 Apr 25 09:32:08.333610 background dispatch completed job PIM Nbr JP for task PIM.mvpn1 Apr 25 09:32:08.333968 rt_flash_update_callback: flash PIM.mvpn1 (mvpn1.mvpn.0) start Apr 25 09:32:08.334001 rt_flash_update_callback: flash PIM.mvpn1 (mvpn1.mvpn.0) done _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
