From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Wed Jan 04 2006 - 20:33:12 GMT-3
Did you initiate traffic from VLAN 6? I.e. ping the group that is
joined repeatedly from VLAN 6.
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
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> -----Original Message-----
> From: Greg Gombas [mailto:ggombas@hotmail.com]
> Sent: Wednesday, January 04, 2006 4:25 PM
> To: swm@emanon.com; Brian McGahan; ccielab@groupstudy.com
> Subject: RE: IE Vol1 LAB 2 Multicast over Frame Relay Cloud
>
> Yes I did "debug ip mrouting rpf-events" on both routers and neither
> generated any messages. I did have "no ip mroute-cache" configured on
the
> interfaces.
>
> The only difference I noticed before and after adding the static
mroute is
> that mroute table now showed 132.1.0.2 as the RPF neighbor.
>
> Before...
>
> Rack1R3#show 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, z - MDT-data group sender,
> Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing
> interface flags: H - Hardware switched, A - Assert winner
> Timers: Uptime/Expires
> Interface state: Interface, Next-Hop or VCD, State/Mode
>
> (*, 228.28.28.28), 01:51:37/00:03:24, RP 150.1.2.2, flags: S
> Incoming interface: Null, RPF nbr 0.0.0.0, Mroute
> Outgoing interface list:
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:06:01/00:03:24
>
> (*, 224.0.1.40), 03:19:22/00:02:57, RP 150.1.2.2, flags: SJCL
> Incoming interface: Null, RPF nbr 0.0.0.0, Mroute
> Outgoing interface list:
> FastEthernet1/0, Forward/Sparse, 03:19:15/00:02:57
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:06:16/00:02:51
>
> Rack1R3#
>
> After...
>
> Rack1R3#show 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, z - MDT-data group sender,
> Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing
> interface flags: H - Hardware switched, A - Assert winner
> Timers: Uptime/Expires
> Interface state: Interface, Next-Hop or VCD, State/Mode
>
> (*, 228.28.28.28), 01:55:38/00:03:19, RP 150.1.2.2, flags: S
> Incoming interface: Serial1/0/0, RPF nbr 132.1.0.2, Mroute
> Outgoing interface list:
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:10:02/00:03:19
>
> (132.1.6.6, 228.28.28.28), 00:02:34/00:03:28, flags: T
> Incoming interface: Serial1/0/0, RPF nbr 132.1.0.2, Mroute
> Outgoing interface list:
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:02:35/00:03:18
>
> (132.1.26.6, 228.28.28.28), 00:02:35/00:03:27, flags: T
> Incoming interface: Serial1/0/0, RPF nbr 132.1.0.2, Mroute
> Outgoing interface list:
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:02:35/00:03:18
>
> (*, 224.0.1.40), 03:23:24/00:02:55, RP 150.1.2.2, flags: SJCL
> Incoming interface: Serial1/0/0, RPF nbr 132.1.0.2, Mroute
> Outgoing interface list:
> FastEthernet1/0, Forward/Sparse, 03:23:17/00:01:56
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:10:18/00:02:54
>
> Rack1R3#
>
>
> ----Original Message Follows----
> From: "Scott Morris" <swm@emanon.com>
> Reply-To: <swm@emanon.com>
> To: "'Greg Gombas'"
>
<ggombas@hotmail.com>,<bmcgahan@internetworkexpert.com>,<ccielab@groupst
ud
> y.com>
> Subject: RE: IE Vol1 LAB 2 Multicast over Frame Relay Cloud
> Date: Wed, 4 Jan 2006 16:58:17 -0500
>
> When you were looking at this, on your router that is the RP (and this
> one),
> had you done the "debug ip mrouting rpf-events" and see what was being
> displayed? With the RP communications (as you see some messages
there),
> it
> really is two-way communications to get things set up.
>
>
> Scott
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Greg
> Gombas
> Sent: Wednesday, January 04, 2006 4:24 PM
> To: bmcgahan@internetworkexpert.com; ccielab@groupstudy.com
> Subject: RE: IE Vol1 LAB 2 Multicast over Frame Relay Cloud
>
> Debug ip mpacket shows absolutley no output. I did have "no ip mroute-
> cache"
>
> on all interfaces.
>
> When I do a debug ip pim, however, I get the following:
>
> Rack1R3#
> Rack1R3#debug ip pim
> PIM debugging is on
> Rack1R3#
> *Jan 4 21:12:40.247: PIM(0): Received v2 Join/Prune on Serial1/0/0
from
> 132.1.0.1, to us
> *Jan 4 21:12:40.247: PIM(0): Join-list: (*, 224.0.1.40), RPT-bit set,
> WC-bit set, S-bit set *
> *Jan 4 21:12:40.247: PIM(0): Update Serial1/0/0/132.1.0.1 to (*,
> 224.0.1.40), Forward state, by PIM *G Join
> *Jan 4 21:12:52.067: PIM(0): Received v2 Join/Prune on Serial1/0/0
from
> 132.1.0.1, to us
> *Jan 4 21:12:52.067: PIM(0): Join-list: (*, 228.28.28.28), RPT-bit
set,
> WC-bit set, S-bit set
> *Jan 4 21:12:52.067: PIM(0): Update Serial1/0/0/132.1.0.1 to (*,
> 228.28.28.28), Forward state, by PIM *G Join
> *Jan 4 21:13:08.051: PIM(0): Building Periodic (*,G) Join /
(S,G,RP-bit)
> Prune message for 224.0.1.40
> *Jan 4 21:13:10.951: PIM(0): Building Periodic (*,G) Join /
(S,G,RP-bit)
> Prune message for 228.28.28.28
> *Jan 4 21:13:40.019: PIM(0): Received v2 Join/Prune on Serial1/0/0
from
> 132.1.0.1, to us
> *Jan 4 21:13:40.019: PIM(0): Join-list: (*, 224.0.1.40), RPT-bit set,
> WC-bit set, S-bit set
> *Jan 4 21:13:40.019: PIM(0): Update Serial1/0/0/132.1.0.1 to (*,
> 224.0.1.40), Forward state, by PIM *G Join
> *Jan 4 21:13:51.639: PIM(0): Received v2 Join/Prune on Serial1/0/0
from
> 132.1.0.1, to us
> *Jan 4 21:13:51.639: PIM(0): Join-list: (*, 228.28.28.28), RPT-bit
set,
> WC-bit set, S-bit set
> *Jan 4 21:13:51.639: PIM(0): Update Serial1/0/0/132.1.0.1 to (*,
> 228.28.28.28), Forward state, by PIM *G Join
> Show ip mroute shows the following:
> Rack1R3#show 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, z - MDT-data group sender,
> Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing
> interface flags: H - Hardware switched, A - Assert winner
> Timers: Uptime/Expires
> Interface state: Interface, Next-Hop or VCD, State/Mode
>
> (*, 228.28.28.28), 01:51:37/00:03:24, RP 150.1.2.2, flags: S
> Incoming interface: Null, RPF nbr 0.0.0.0, Mroute
> Outgoing interface list:
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:06:01/00:03:24
>
> (*, 224.0.1.40), 03:19:22/00:02:57, RP 150.1.2.2, flags: SJCL
> Incoming interface: Null, RPF nbr 0.0.0.0, Mroute
> Outgoing interface list:
> FastEthernet1/0, Forward/Sparse, 03:19:15/00:02:57
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:06:16/00:02:51
>
> Rack1R3#
> But once I enter the ip mroute, it all starts working...
>
> ack1R3(config)#
> Rack1R3(config)#ip mroute 0.0.0.0 0.0.0.0 132.1.0.2
> *Jan 4 21:16:09.063: PIM(0): Building Periodic (*,G) Join /
(S,G,RP-bit)
> Prune message for 224.0.1.40
> *Jan 4 21:16:09.063: PIM(0): Insert (*,224.0.1.40) join in nbr
> 132.1.0.2's
> queue
> *Jan 4 21:16:09.063: PIM(0): Building Join/Prune packet for nbr
132.1.0.2
> *Jan 4 21:16:09.063: PIM(0): Adding v2 (150.1.2.2/32, 224.0.1.40),
WC-
> bit,
> RPT-bit, S-bit Join
> *Jan 4 21:16:09.063: PIM(0): Send v2 join/prune to 132.1.0.2
> (Serial1/0/0)
> *Jan 4 21:16:09.463: PIM(0): Building Periodic (*,G) Join /
(S,G,RP-bit)
> Prune message for 228.28.28.28
> *Jan 4 21:16:09.463: PIM(0): Insert (*,228.28.28.28) join in nbr
> 132.1.0.2's queue Rack1R3(config)#
> *Jan 4 21:16:09.463: PIM(0): Building Join/Prune packet for nbr
132.1.0.2
> *Jan 4 21:16:09.463: PIM(0): Adding v2 (150.1.2.2/32, 228.28.28.28),
> WC-bit, RPT-bit, S-bit Join
> *Jan 4 21:16:09.463: PIM(0): Send v2 join/prune to 132.1.0.2
> (Serial1/0/0)
> Rack1R3(config)#
> *Jan 4 21:16:23.479: IP(0): s=132.1.6.6 (Serial1/0/0)
> d=228.28.28.28(Serial1/0/0) id=9679, ttl=253, prot=1, len=100(100),
> mforward
>
> *Jan 4 21:16:23.487: PIM(0): Received v2 Join/Prune on Serial1/0/0
from
> 132.1.0.1, to us
> *Jan 4 21:16:23.487: PIM(0): Join-list: (132.1.26.6/32,
228.28.28.28),
> S-bit set
> *Jan 4 21:16:23.487: PIM(0): Add Serial1/0/0/132.1.0.1 to
(132.1.26.6,
> 228.28.28.28), Forward state, by PIM SG Join
> *Jan 4 21:16:23.487: PIM(0): Insert (132.1.26.6,228.28.28.28) join in
nbr
> 132.1.0.2's queue
> *Jan 4 21:16:23.487: PIM(0): Building Join/Prune packet for nbr
132.1.0.2
> *Jan 4 21:16:23.487: PIM(0): Adding v2 (132.1.26.6/32, 228.28.28.28),
S-
> bit
> Join
> *Jan 4 21:16:23.487: PIM(0): Send v2 join/prune to 132.1.0.2
> (Serial1/0/0)
> *Jan 4 21:16:23.499: PIM(0): Received v2 Join/Prune on Serial1/0/0
from
> 132.1.0.1, to us
> *Jan 4 21:16:23.499: PIM(0): Join-list: (132.1.6.6/32, 228.28.28.28),
S-
> bit
> set
> *Jan 4 21:16:23.499: PIM(0): Add Serial1/0/0/132.1.0.1 to (132.1.6.6,
> 228.28.28.28), Forward state, by PIM SG Join
> *Jan 4 21:16:23.499: PIM(0): Insert (132.1.6.6,228.28.28.28) join in
nbr
> 132.1.0.2's queue
> *Jan 4 21:16:23.499: PIM(0): Building Join/Prune packet for nbr
132.1.0.2
> *Jan 4 21:16:23.499: PIM(0): Adding v2 (132.1.6.6/32, 228.28.28.28),
S-
> bit
> Join
> *Jan 4 21:16:23.499: PIM(0): Send v2 join/prune to 132.1.0.2
> (Serial1/0/0))# Rack1R3(config)#
> *Jan 4 21:16:25.671: PIM(0): Received RP-Reachable on Serial1/0/0
from
> 150.1.2.2
> *Jan 4 21:16:25.671: PIM(0): Received RP-Reachable on Serial1/0/0
from
> 150.1.2.2
> *Jan 4 21:16:25.671: for group 228.28.28.28
> *Jan 4 21:16:25.671: PIM(0): Forward RP-reachability for 228.28.28.28
on
> Serial1/0/0
>
>
> Rack1R3#show 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, z - MDT-data group sender,
> Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing
> interface flags: H - Hardware switched, A - Assert winner
> Timers: Uptime/Expires
> Interface state: Interface, Next-Hop or VCD, State/Mode
>
> (*, 228.28.28.28), 01:55:38/00:03:19, RP 150.1.2.2, flags: S
> Incoming interface: Serial1/0/0, RPF nbr 132.1.0.2, Mroute
> Outgoing interface list:
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:10:02/00:03:19
>
> (132.1.6.6, 228.28.28.28), 00:02:34/00:03:28, flags: T
> Incoming interface: Serial1/0/0, RPF nbr 132.1.0.2, Mroute
> Outgoing interface list:
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:02:35/00:03:18
>
> (132.1.26.6, 228.28.28.28), 00:02:35/00:03:27, flags: T
> Incoming interface: Serial1/0/0, RPF nbr 132.1.0.2, Mroute
> Outgoing interface list:
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:02:35/00:03:18
>
> (*, 224.0.1.40), 03:23:24/00:02:55, RP 150.1.2.2, flags: SJCL
> Incoming interface: Serial1/0/0, RPF nbr 132.1.0.2, Mroute
> Outgoing interface list:
> FastEthernet1/0, Forward/Sparse, 03:23:17/00:01:56
> Serial1/0/0, 132.1.0.1, Forward/Sparse, 00:10:18/00:02:54
>
> Rack1R3#
>
> Can you explain why this only works with the static mroute?
> I thought static mroute is configured to allow incoming traffic on a
non-
> RPF
> interface.
> In this case it is the outgoing join message that was not being
sent...
>
>
> ----Original Message Follows----
> From: "Brian McGahan" <bmcgahan@internetworkexpert.com>
> To: "Greg Gombas" <ggombas@hotmail.com>,<ccielab@groupstudy.com>
> Subject: RE: IE Vol1 LAB 2 Multicast over Frame Relay Cloud
> Date: Wed, 4 Jan 2006 15:01:54 -0500
>
> Send traffic from VLAN 6 to the destination and "debug ip
> mpacket" on R3. Make sure to issue the "no ip mroute-cache" interface
> level command on R3. What do these results tell you?
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987 x 705
> Outside US: 775-826-4344 x 705
> 24/7 Support: http://forum.internetworkexpert.com
> Live Chat: http://www.internetworkexpert.com/chat/
>
>
> > -----Original Message-----
> > From: Greg Gombas [mailto:ggombas@hotmail.com]
> > Sent: Wednesday, January 04, 2006 1:36 PM
> > To: Brian McGahan; ccielab@groupstudy.com
> > Subject: RE: IE Vol1 LAB 2 Multicast over Frame Relay Cloud
> >
> > Hi Brian,
> >
> > In my first posting I forgot to mention the additional point to
point
> link
> > between R2 and R3 which is exchanging EIGRP.
> > This point-to-point link is the preffered path to the loopback
address
> of
> > R2.
> > Unfortunately the task requirement does not allow you to configure
PIM
> on
> > this point to point link.
> >
> > It looks like this:
> >
> > R6 (Source)
> > |
> > R2-
> > / \ \
> > R1----R3
> > |
> > SW1 (Receiver)
> >
> > Can you tell me why an mroute on R3 pointing to the frame relay
> interface
> > of
> > R2 allows this to work?
> >
> > ----Original Message Follows----
> > From: "Brian McGahan" <bmcgahan@internetworkexpert.com>
> > To: "Greg Gombas" <ggombas@hotmail.com>,<ccielab@groupstudy.com>
> > Subject: RE: IE Vol1 LAB 2 Multicast over Frame Relay Cloud
> > Date: Wed, 4 Jan 2006 12:49:02 -0500
> >
> > If they are in a full mesh why would R1 see R3 as the next-hop to
> reach
> > R2?
> >
> > Brian McGahan, CCIE #8593
> > bmcgahan@internetworkexpert.com
> > Internetwork Expert, Inc.
> > http://www.InternetworkExpert.com
> > Toll Free: 877-224-8987 x 705
> > Outside US: 775-826-4344 x 705
> > 24/7 Support: http://forum.internetworkexpert.com
> > Live Chat: http://www.internetworkexpert.com/chat/
> >
> > ________________________________
> >
> > From: nobody@groupstudy.com on behalf of Greg Gombas
> > Sent: Tue 1/3/2006 4:40 PM
> > To: ccielab@groupstudy.com
> > Subject: IE Vol1 LAB 2 Multicast over Frame Relay Cloud
> >
> >
> >
> > Hello,
> >
> > I was hoping someone help me figure out this scenario.
> >
> > R6 (Source)
> > |
> > R2
> > / \
> > R1----R3
> > |
> > SW1 (Receiver)
> >
> > R1, R2 and R3 are connected via a full frame relay mesh.
> > OSPF is runnig on the frame relay mesh in point-to-multipoint
mode.
> >
> > R2 is acting as RP with static RP configured on all devices.
> >
> > R1 is showing R3 as next hop to RP.
> >
> > I am doing debug ip pim on all devices and I can see that R1 is
> sending
> > the
> > PIM join message from SW1 to R3 but R3 is not forwarding the join
> message
> > to
> > R2.
> >
> > I did all the debugs I can think of on R3 but there is no
indication
> of an
> > RPF failure. How can I troubleshoot this?
> >
> > Thanks,
> > Greg
> >
> >
>
This archive was generated by hypermail 2.1.4 : Wed Feb 01 2006 - 07:45:47 GMT-3