Topology
#R1#
R1#sh ip int brief | excl unassig
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.0.0.1 YES manual up up
Loopback0 1.1.1.1 YES manual up up
R1#
R1#sh run | incl multicast
R1#
R1#sh ip route | incl 2.2.2.2
O 2.2.2.2 [110/5] via 10.0.0.2, 00:48:08, FastEthernet0/0
R1#
R1#sh run int fa 0/0
!
interface FastEthernet0/0
ip address 10.0.0.1 255.255.255.252
duplex auto
speed auto
R1#sh run int lo0
!
interface Loopback0
ip address 1.1.1.1 255.255.255.255
R1#
#SW1
SW1#sh ip int brief | excl unassi
Interface IP-Address OK? Method Status Protocol
FastEthernet0/1 10.0.0.2 YES manual up up
FastEthernet0/5 10.0.0.5 YES manual up up
FastEthernet0/19 10.0.0.13 YES manual up up
SW1#
SW1#sh run int fa 0/1
!
interface FastEthernet0/1
no switchport
ip address 10.0.0.2 255.255.255.252
ip pim sparse-mode
SW1#sh run int fa 0/5
!
interface FastEthernet0/5
no switchport
ip address 10.0.0.5 255.255.255.252
ip pim sparse-mode
SW1#sh run int fa 0/19
!
interface FastEthernet0/19
no switchport
ip address 10.0.0.13 255.255.255.252
ip pim sparse-mode
SW1#
SW1#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, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.0.0.1), 00:06:47/stopped, RP 5.5.5.5, flags: SPF
Incoming interface: FastEthernet0/5, RPF nbr 10.0.0.6
Outgoing interface list: Null
(10.0.0.1, 239.0.0.1), 00:02:09/00:01:27, flags: FT
Incoming interface: FastEthernet0/1, RPF nbr 0.0.0.0, Registering
Outgoing interface list:
FastEthernet0/19, Forward/Sparse, 00:02:09/00:02:50, H
FastEthernet0/5, Forward/Sparse, 00:00:44/00:03:19, H
(*, 224.0.1.40), 01:33:57/00:02:04, RP 5.5.5.5, flags: SJCL
Incoming interface: FastEthernet0/5, RPF nbr 10.0.0.6
Outgoing interface list:
FastEthernet0/1, Forward/Sparse, 01:33:57/00:02:04
SW1#
SW1#sh run | incl rp
ip pim rp-address 5.5.5.5
SW1#sh ip pim rp map
PIM Group-to-RP Mappings
Group(s): 224.0.0.0/4, Static
RP: 5.5.5.5 (?)
SW1#sh ip pim neigh
PIM Neighbor Table
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.0.14 FastEthernet0/19 01:16:25/00:01:35 v2 1 / DR S
10.0.0.6 FastEthernet0/5 00:02:08/00:01:37 v2 1 / DR S
SW1#
SW1#sh run
!
ip routing
!
ip multicast-routing
!
interface FastEthernet0/1
no switchport
ip address 10.0.0.2 255.255.255.252
ip pim sparse-mode
!
interface FastEthernet0/5
no switchport
ip address 10.0.0.5 255.255.255.252
ip pim sparse-mode
!
interface FastEthernet0/19
no switchport
ip address 10.0.0.13 255.255.255.252
ip pim sparse-mode
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
!
ip pim rp-address 5.5.5.5
!
SW1#
#R5#
R5#sh ip int brief | excl unassi
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.0.0.6 YES manual up up
FastEthernet0/1 10.0.0.9 YES manual up up
Loopback0 5.5.5.5 YES manual up up
R5#
R5#sh run int fa 0/0
!
interface FastEthernet0/0
ip address 10.0.0.6 255.255.255.252
ip pim sparse-mode
duplex auto
speed auto
end
R5#sh run int fa 0/1
!
interface FastEthernet0/1
ip address 10.0.0.9 255.255.255.252
ip pim sparse-mode
duplex auto
speed auto
!
R5#sh run int lo0
!
interface Loopback0
ip address 5.5.5.5 255.255.255.255
ip pim sparse-mode
!
R5#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, z - MDT-data group sender,
Y - Joined MDT-data group, y - Sending to MDT-data group,
V - RD & Vector, v - Vector
Outgoing interface flags: H - Hardware switched, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.0.0.1), 02:13:57/00:03:27, RP 5.5.5.5, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/1, Forward/Sparse, 01:45:04/00:03:27
(10.0.0.1, 239.0.0.1), 00:00:07/00:02:52, flags:
Incoming interface: FastEthernet0/0, RPF nbr 10.0.0.5
Outgoing interface list:
FastEthernet0/1, Forward/Sparse, 00:00:07/00:03:27
(*, 224.0.1.40), 02:49:50/00:02:33, RP 5.5.5.5, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/0, Forward/Sparse, 00:05:32/00:02:54
FastEthernet0/1, Forward/Sparse, 02:46:48/00:02:34
Loopback0, Forward/Sparse, 02:49:50/00:02:33
R5#
R5#sh run | incl rp
ip pim rp-address 5.5.5.5
R5#sh ip pim rp map
PIM Group-to-RP Mappings
Group(s): 224.0.0.0/4, Static
RP: 5.5.5.5 (?)
R5#sh ip pim nei
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
S - State Refresh Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.0.5 FastEthernet0/0 00:07:21/00:01:19 v2 1 / S
10.0.0.10 FastEthernet0/1 01:26:35/00:01:18 v2 1 / DR S
R5#
R5#sh run
!
ip cef
ip multicast-routing
!
interface Loopback0
ip address 5.5.5.5 255.255.255.255
ip pim sparse-mode
!
interface FastEthernet0/0
ip address 10.0.0.6 255.255.255.252
ip pim sparse-mode
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 10.0.0.9 255.255.255.252
ip pim sparse-mode
duplex auto
speed auto
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
!
ip pim rp-address 5.5.5.5
!
R5#
#SW3#
SW3#sh ip int brief | excl una
Interface IP-Address OK? Method Status Protocol
FastEthernet0/5 10.0.0.10 YES manual up up
FastEthernet0/19 10.0.0.18 YES manual up up
SW3#
SW3#sh run int fa 0/5
Building configuration...
Current configuration : 130 bytes
!
interface FastEthernet0/5
no switchport
ip address 10.0.0.10 255.255.255.252
ip pim sparse-mode
end
SW3#sh run int fa 0/19
Building configuration...
Current configuration : 107 bytes
!
interface FastEthernet0/19
no switchport
ip address 10.0.0.18 255.255.255.252
ip pim sparse-mode
end
SW3#
SW3#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, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.0.0.1), 01:49:10/00:02:43, RP 5.5.5.5, flags: S
Incoming interface: FastEthernet0/5, RPF nbr 10.0.0.9
Outgoing interface list:
FastEthernet0/19, Forward/Sparse, 01:49:10/00:02:43, H, A
(10.0.0.1, 239.0.0.1), 00:04:04/00:02:13, flags: PR
Incoming interface: FastEthernet0/5, RPF nbr 10.0.0.9
Outgoing interface list: Null
(*, 224.0.1.40), 01:56:47/00:03:27, RP 5.5.5.5, flags: SJCL
Incoming interface: FastEthernet0/5, RPF nbr 10.0.0.9
Outgoing interface list:
FastEthernet0/19, Forward/Sparse, 01:56:48/00:03:27
SW3#
SW3#sh run | incl rp
ip pim rp-address 5.5.5.5
SW3#sh ip pim rp map
PIM Group-to-RP Mappings
Group(s): 224.0.0.0/4, Static
RP: 5.5.5.5 (?)
SW3#sh ip pim nei
PIM Neighbor Table
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.0.17 FastEthernet0/19 03:01:34/00:01:26 v2 1 / S
10.0.0.9 FastEthernet0/5 01:30:18/00:01:29 v2 1 / S
SW3#
SW3#sh run
!
ip routing
!
ip multicast-routing
!
interface FastEthernet0/5
no switchport
ip address 10.0.0.10 255.255.255.252
ip pim sparse-mode
!
interface FastEthernet0/19
no switchport
ip address 10.0.0.18 255.255.255.252
ip pim sparse-mode
!
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
!
ip pim rp-address 5.5.5.5
!
SW3#
#SW4#
SW4#sh ip int brief | excl unassi
Interface IP-Address OK? Method Status Protocol
FastEthernet0/13 10.0.0.14 YES manual up up
FastEthernet0/16 10.0.0.21 YES manual up up
FastEthernet0/19 10.0.0.17 YES manual up up
SW4#
SW4#sh run int fa 0/13
!
interface FastEthernet0/13
no switchport
ip address 10.0.0.14 255.255.255.252
ip pim sparse-mode
end
SW4#sh run int fa 0/16
!
interface FastEthernet0/16
no switchport
ip address 10.0.0.21 255.255.255.252
ip pim sparse-mode
!
SW4#sh run int fa 0/19
!
interface FastEthernet0/19
no switchport
ip address 10.0.0.17 255.255.255.252
ip pim sparse-mode
end
SW4#
SW4#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, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.0.0.1), 01:53:04/00:02:54, RP 5.5.5.5, flags: S
Incoming interface: FastEthernet0/19, RPF nbr 10.0.0.18
Outgoing interface list:
FastEthernet0/16, Forward/Sparse, 01:53:04/00:02:54, H
(10.0.0.1, 239.0.0.1), 00:08:09/00:03:24, flags: T
Incoming interface: FastEthernet0/13, RPF nbr 10.0.0.13
Outgoing interface list:
FastEthernet0/16, Forward/Sparse, 00:08:09/00:02:54, H
(*, 224.0.1.40), 03:09:40/00:02:35, RP 5.5.5.5, flags: SJL
Incoming interface: FastEthernet0/19, RPF nbr 10.0.0.18
Outgoing interface list:
FastEthernet0/16, Forward/Sparse, 01:53:05/00:02:38
SW4#
SW4#sh run | incl multicast
ip multicast-routing
SW4#sh ip pim rp map
PIM Group-to-RP Mappings
Group(s): 224.0.0.0/4, Static
RP: 5.5.5.5 (?)
SW4#sh ip pim nei
SW4#sh ip pim neighbor
PIM Neighbor Table
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.0.18 FastEthernet0/19 03:05:31/00:01:26 v2 1 / DR S
10.0.0.13 FastEthernet0/13 01:29:16/00:01:39 v2 1 / S
10.0.0.22 FastEthernet0/16 02:12:26/00:01:27 v2 1 / DR S
SW4#
SW4#sh run
!
ip multicast-routing
!
!
interface FastEthernet0/13
no switchport
ip address 10.0.0.14 255.255.255.252
ip pim sparse-mode
!
interface FastEthernet0/16
no switchport
ip address 10.0.0.21 255.255.255.252
ip pim sparse-mode
!
interface FastEthernet0/19
no switchport
ip address 10.0.0.17 255.255.255.252
ip pim sparse-mode
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip pim rp-address 5.5.5.5
!
SW4#
#SW2#
SW2#sh ip int brief | excl assi
Interface IP-Address OK? Method Status Protocol
FastEthernet0/2 10.0.0.25 YES manual up up
FastEthernet0/19 10.0.0.22 YES manual up up
SW2#
SW2#sh run int fa0/2
Building configuration...
Current configuration : 106 bytes
!
interface FastEthernet0/2
no switchport
ip address 10.0.0.25 255.255.255.252
ip pim sparse-mode
end
SW2#sh run int fa0/19
Building configuration...
Current configuration : 107 bytes
!
interface FastEthernet0/19
no switchport
ip address 10.0.0.22 255.255.255.252
ip pim sparse-mode
end
SW2#
SW2#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, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.0.0.1), 02:15:16/stopped, RP 5.5.5.5, flags: SJC
Incoming interface: FastEthernet0/19, RPF nbr 10.0.0.21
Outgoing interface list:
FastEthernet0/2, Forward/Sparse, 00:00:35/00:02:46, H
(10.0.0.1, 239.0.0.1), 00:11:51/00:02:58, flags: JT
Incoming interface: FastEthernet0/19, RPF nbr 10.0.0.21
Outgoing interface list:
FastEthernet0/2, Forward/Sparse, 00:00:35/00:02:46, H
(*, 224.0.1.40), 02:15:54/00:02:54, RP 5.5.5.5, flags: SJPCL
Incoming interface: FastEthernet0/19, RPF nbr 10.0.0.21
Outgoing interface list: Null
SW2#
SW2#sh run | incl multi
ip multicast-routing
SW2#sh ip pim rp map
PIM Group-to-RP Mappings
Group(s): 224.0.0.0/4, Static
RP: 5.5.5.5 (?)
SW2#sh ip pim neigh
PIM Neighbor Table
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.0.21 FastEthernet0/19 02:15:52/00:01:42 v2 1 / S
SW2#
SW2#sh run
!
ip routing
!
ip multicast-routing
!
interface FastEthernet0/2
no switchport
ip address 10.0.0.25 255.255.255.252
ip pim sparse-mode
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip pim rp-address 5.5.5.5
!
SW2#
#R2#
R2#sh ip int brief | excl unassi
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.0.0.26 YES manual up up
Loopback0 2.2.2.2 YES manual up up
R2#
R2#sh run int lo0
Building configuration...
Current configuration : 63 bytes
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
end
R2#sh run int fa 0/0
Building configuration...
Current configuration : 126 bytes
!
interface FastEthernet0/0
ip address 10.0.0.26 255.255.255.252
ip igmp join-group 239.0.0.1
duplex auto
speed auto
end
R2#
R2#sh run | incl multicast
R2#
R2#sh run
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 10.0.0.26 255.255.255.252
ip igmp join-group 239.0.0.1
duplex auto
speed auto
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
R2#
Redundanz-Test (disablen SW1 fa0/5)
Hier ist noch ein Trace-File vom PIMv2-Register/Register-Stop vom SW1 zum RP (R5), nachdem SW1 fa0/5 zum Redundanz-Test disabled wurde. Danach geht der Multicast-Flow ohne Encapsulation durch.
Damit der Traffic-Flow analog dem Schaubild läuft ist natürlich ein "ip pim spt-threshold infinite" notwendig, um den ShortestPathTree zu vermeiden.
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