From: Mohammad Z Saeed (msaeed@uaeu.ac.ae)
Date: Sat Jun 24 2006 - 01:53:49 ART
Hi Everybody,
I have configured multicasting using static RP on SW1, R1, R2 and R6. Now
everything works fine, except, when I enable multicast on R6 and give ip pim
rp-address 150.1.2.2 , it some how learns 150.1.2.2 RP address via Auto-RP
as well.here is the output..
Rack1R6#sh ip pim rp mapp
PIM Group-to-RP Mappings
Group(s) 224.0.1.39/32
RP 150.1.2.2 (?), v1
Info source: local, elected via Auto-RP
Uptime: 00:13:35, expires: never
Group(s) 224.0.1.40/32
RP 150.1.2.2 (?), v1
Info source: local, elected via Auto-RP
Uptime: 00:13:35, expires: never
Group(s): 224.0.0.0/4, Static
RP: 150.1.2.2 (?)
Even R2 is not announcing itself by command ip pim send-rp-announce. Now if
I clear RP mapping, only static entry will remain on R6, but even then I can
not ping 228.28.28.28 on SW1. I checked R6 send multicast packets to R2 but
somehow R2 can not forward those while if I ping from R2 to 228.28.28.28 it
gets response from SW1 which has joined group 228.28.28.28. Here is the
debug output from R2 which shows that R6s packets for 228.28.28.28 are
being received but with R2 can not find outgoing interface, while it knows
that it can reach 228.28.28.28 through s0/0 because it can ping this group.
Rack1R2#
*Mar 1 00:28:05.423: IP(0): MAC sa=00e0.f726.0478 (Ethernet0), IP
last-hop=132.
1.26.6
*Mar 1 00:28:05.423: IP(0): IP tos=0x0, len=100, id=18, ttl=254, prot=1
*Mar 1 00:28:05.427: IP(0): s=132.1.26.6 (Ethernet0) d=228.28.28.28 id=18,
prot
=1, len=114(100), mroute olist null
Here is the output og sh ip mroute on R2 and R6
Rack1R2#sh ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, Z - Multicast
Tunnel
Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 228.28.28.28), 00:01:57/stopped, RP 150.1.2.2, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(132.1.26.6, 228.28.28.28), 00:01:57/00:02:16, flags: PT
Incoming interface: Ethernet0, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 224.0.1.40), 00:28:28/00:03:26, RP 150.1.2.2, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Ethernet0, Forward/Sparse, 00:28:29/00:03:25
Rack1R6#sh ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, s - SSM
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:02:39/00:00:00, RP 150.1.2.2, flags: SJCL
Incoming interface: FastEthernet0.26, RPF nbr 132.1.26.2
Outgoing interface list:
FastEthernet0, Forward/Sparse, 00:02:39/00:00:20
(*, 228.28.28.28), 00:02:34/00:02:59, RP 150.1.2.2, flags: SPF
Incoming interface: FastEthernet0.26, RPF nbr 132.1.26.2
Outgoing interface list: Null
(132.1.6.6, 228.28.28.28), 00:02:34/00:00:25, flags: PFT
Incoming interface: FastEthernet0.6, RPF nbr 0.0.0.0
Outgoing interface list: Null
(132.1.26.6, 228.28.28.28), 00:02:36/00:00:23, flags: PFT
Incoming interface: FastEthernet0.26, RPF nbr 0.0.0.0
Outgoing interface list: Null
Where I am doing the mistake?
Regards,
Mohammad Zahid Saeed
This archive was generated by hypermail 2.1.4 : Sat Jul 01 2006 - 07:57:33 ART