From: naveen M S (navin.ms@gmail.com)
Date: Wed Mar 11 2009 - 13:26:09 ARST
Jeff,
The interface config on R3 vlan -3 is as follows:
interface GigabitEthernet0/0
ip address 156.1.3.3 255.255.255.0
ip igmp join-group 224.24.24.24
ip igmp join-group 232.32.32.32
On Wed, Mar 11, 2009 at 5:18 AM, Jeff Andiorio <jandiorio@gmail.com> wrote:
> I am viewing from my phone so I apologize if I missed this. what is
> the interface config on r3, vlan 3? are there actual client joining
> the groups? I am not able to lab this right now, but I would expect
> to see a connected mroute on r3 fr he group.
>
> post the config.
>
> thanks.
>
> jeff
>
> On 3/11/09, naveen M S <navin.ms@gmail.com> wrote:
> > Group,
> >
> > I've been pulling my hairs for almost an hour and no luck. Any pointers
> to
> > whatz going wrong here ? Here is my setup and task details.
> >
> > *Setup:*
> > R5-----+
> > / |
> > / |
> > / |
> > vlan3--R3 +----SW2--vlan8
> > \ |
> > \ |
> > \ |
> > R1-----+
> >
> > R1 is RP for groups in range 224.0.0.0/5
> > R5 is RP for groups in range 232.0.0.0/5
> > SW2 is the MA for all groups
> >
> > *Task:*
> > Vlan-3 on R3 has clients for groups 224.24.24.24 and 232.32.32.32
> > Multicast server in vlan-8 is sending traffic for these 2 groups.
> > A ping from SW2 (sourced from vlan-8) to these 2 groups must be replied
> by
> > R3.
> >
> > *Problem:*
> > Ping to 224.24.24.24 and 232.32.32.32 fails from SW2 (source ip =
> vlan-8).
> > Am suspecting the RPF failure on R3. A traceroute from R3 to vlan-8 gets
> > load balanced between R1 and R5. Configured a static mroute such that R3
> > uses R1 as Next Hop towards the vlan-8 source, but no luck.
> >
> > Rack1R3# *show run | inc mroute*
> > ip mroute 156.1.8.0 255.255.255.0 156.1.13.1
> >
> > Rack1R3# *traceroute 156.1.8.8*
> >
> > Type escape sequence to abort.
> > Tracing the route to 156.1.8.8
> >
> > 1 156.1.35.5 28 msec
> > 156.1.13.1 28 msec
> > 156.1.35.5 24 msec
> > 2 156.1.18.8 32 msec
> > 156.1.58.8 28 msec *
> >
> > Rack1R3# *show ip route eigrp | ^D*
> > D 156.1.8.0/24 [90/2586112] via *156.1.35.5*, 02:11:15,
> > Virtual-Access2
> > [90/2586112] via *156.1.13.1*, 02:11:15,
> > Virtual-Access3
> >
> > Rack1R3#* show ip pim rp mapping*
> > PIM Group-to-RP Mappings
> >
> > Group(s) 224.0.0.0/5
> > RP 150.1.1.1 (?), v2v1
> > Info source: 150.1.8.8 (?), elected via Auto-RP
> > Uptime: 00:19:29, expires: 00:02:21
> > Group(s) 232.0.0.0/5
> > RP 150.1.5.5 (?), v2v1
> > Info source: 150.1.8.8 (?), elected via Auto-RP
> > Uptime: 00:19:29, expires: 00:02:19
> > Rack1R3#
> > 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
> >
> > (*, 224.0.1.39), 00:18:50/stopped, RP 0.0.0.0, flags: D
> > Incoming interface: Null, RPF nbr 0.0.0.0
> > Outgoing interface list:
> > Virtual-Access3, Forward/Sparse, 00:18:50/00:00:00
> > Virtual-Access2, Forward/Sparse, 00:18:50/00:00:00
> >
> > (150.1.1.1, 224.0.1.39), 00:00:45/00:02:22, flags: PT
> > Incoming interface: Virtual-Access3, RPF nbr 156.1.13.1
> > Outgoing interface list:
> > Virtual-Access2, Prune/Sparse, 00:00:46/00:02:13
> >
> > (150.1.5.5, 224.0.1.39), 00:18:51/00:02:11, flags: T
> > Incoming interface: Virtual-Access2, RPF nbr 156.1.35.5
> > Outgoing interface list:
> > Virtual-Access3, Forward/Sparse, 00:18:51/00:00:00
> >
> > (*, 224.0.1.40), 00:19:18/stopped, RP 0.0.0.0, flags: DCL
> > Incoming interface: Null, RPF nbr 0.0.0.0
> > Outgoing interface list:
> > Virtual-Access3, Forward/Sparse, 00:19:18/00:00:00
> > Virtual-Access2, Forward/Sparse, 00:19:18/00:00:00
> > Loopback0, Forward/Sparse, 00:19:18/00:00:00
> >
> > (150.1.8.8, 224.0.1.40), 00:18:53/00:02:11, flags: LT
> > Incoming interface: Virtual-Access2, RPF nbr 156.1.35.5
> > Outgoing interface list:
> > Loopback0, Forward/Sparse, 00:18:53/00:00:00
> > Virtual-Access3, Prune/Sparse, 00:02:58/00:00:04
> >
> > Rack1R3#
> > Rack1R3#* show ip pim interface *
> >
> > Address Interface Ver/ Nbr Query DR DR
> > Mode Count Intvl Prior
> > 150.1.3.3 Loopback0 v2/S 0 30 1
> > 150.1.3.3
> > 156.1.35.3 Virtual-Template1 v2/S 0 30 1
> > 0.0.0.0
> > 156.1.35.3 Virtual-Access2 v2/S 1 30 1
> > 0.0.0.0
> > 156.1.13.3 Virtual-Template2 v2/S 0 30 1
> > 0.0.0.0
> > 156.1.13.3 Virtual-Access3 v2/S 1 30 1
> > 0.0.0.0
> > Rack1R3#
> >
> >
> > Rack1SW2#* traceroute 156.1.13.3*
> >
> > Type escape sequence to abort.
> > Tracing the route to 156.1.13.3
> >
> > 1 156.1.18.1 0 msec 0 msec 8 msec
> > 2 156.1.13.3 25 msec * 25 msec
> > Rack1SW2#
> > Rack1SW2# *show ip pim interface *
> >
> > Address Interface Ver/ Nbr Query DR DR
> > Mode Count Intvl Prior
> > 156.1.58.8 Vlan58 v2/S 1 30 1
> > 156.1.58.8
> > 156.1.18.8 Vlan18 v2/S 1 30 1
> > 156.1.18.8
> > 156.1.8.8 Vlan8 v2/S 0 30 1
> > 156.1.8.8
> > 150.1.8.8 Loopback0 v2/S 0 30 1
> > 150.1.8.8
> > Rack1SW2#
> > Rack1SW2# *ping 224.24.24.24 source 156.1.8.8 repeat 5*
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 224.24.24.24, timeout is 2 seconds:
> > Packet sent with a source address of 156.1.8.8
> > *.....*
> > Rack1SW2#
> > Rack1SW2# *ping 232.32.32.32 source 156.1.8.8 repeat 5*
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 232.32.32.32, timeout is 2 seconds:
> > Packet sent with a source address of 156.1.8.8
> > *.....*
> > Rack1SW2#
> >
> >
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