CML 上の IOSv で Static RP 構成でマルチキャストを設定したサンプルコンフィグをメモしておきます。 尚、CML へインポート可能な構成ファイルは GitHub にアップロードしてあります。
構成
IOSv1 は Source、IOSv5 は Receiver として設定します。 IOSv2 ～ 4 では OSPF を動作させ、全てのユニキャストルーティングが出来るように設定します。 IOSv3 は RP (Rendezvous Point) として設定します。
コンフィグ
中継区間となる IOSv2 ～ 4 の全てのインターフェイスには ip pim sparse-mode を設定します。 また、今回は Static RP を利用するので IOSv2 ～ 4 には ip pim rp-address [RP-ADDRESSS] を設定します。
IOSv1
Source になる IOSv1 は no ip routing でルーティングを無効化し、ip default-gateway [ADDRESS] でデフォルトゲートウェイだけ、設定しています。
hostname IOSv1
!
no service config
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
!
logging buffered 65536 debugging
!
clock timezone JST +9
!
no ip routing
!
no ip domain-lookup
!
interface GigabitEthernet0/0
ip address 10.0.12.1 255.255.255.0
no shutdown
!
ip default-gateway 10.0.12.2
!
line con 0
exec-timeout 60 0
privilege level 15
!
scheduler allocate 20000 1000
!
no banner exec ^C
no banner incoming ^C
no banner login ^CIOSv2
hostname IOSv2
!
no service config
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
!
logging buffered 65536 debugging
!
clock timezone JST +9
!
no ip domain-lookup
!
ip multicast-routing
!
interface GigabitEthernet0/0
ip address 10.0.12.2 255.255.255.0
ip pim sparse-mode
no shutdown
!
interface GigabitEthernet0/1
ip address 10.0.23.2 255.255.255.0
ip pim sparse-mode
no shutdown
!
interface GigabitEthernet0/3
ip address 10.0.24.2 255.255.255.0
ip pim sparse-mode
no shutdown
!
router ospf 65000
router-id 10.2.2.2
passive-interface GigabitEthernet0/0
network 10.0.12.0 0.0.0.255 area 0.0.0.0
network 10.0.23.0 0.0.0.255 area 0.0.0.0
network 10.0.24.0 0.0.0.255 area 0.0.0.0
!
ip pim rp-address 10.3.3.3
!
line con 0
exec-timeout 60 0
privilege level 15
!
scheduler allocate 20000 1000
!
no banner exec ^C
no banner incoming ^C
no banner login ^CIOSv3
RP として動作させるので Loopback インターフェイスを設定します。 Loopback インターフェイスにも忘れずに ip pim sparse-mode を設定します。 また、ip pim rp-address 10.3.3.3 と自身の Loopback アドレスを指定して Static RP 設定を実施しておきます。
hostname IOSv3
!
no service config
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
!
logging buffered 65536 debugging
!
clock timezone JST +9
!
no ip domain-lookup
!
ip multicast-routing
!
interface Loopback0
ip address 10.3.3.3 255.255.255.255
ip pim sparse-mode
!
interface GigabitEthernet0/1
ip address 10.0.23.3 255.255.255.0
ip pim sparse-mode
no shutdown
!
interface GigabitEthernet0/2
ip address 10.0.34.3 255.255.255.0
ip pim sparse-mode
no shutdown
!
router ospf 65000
router-id 10.3.3.3
network 10.3.3.3 0.0.0.0 area 0.0.0.0
network 10.0.23.0 0.0.0.255 area 0.0.0.0
network 10.0.34.0 0.0.0.255 area 0.0.0.0
!
ip pim rp-address 10.3.3.3
!
line con 0
exec-timeout 60 0
privilege level 15
!
scheduler allocate 20000 1000
!
no banner exec ^C
no banner incoming ^C
no banner login ^CIOSv4
hostname IOSv4
!
no service config
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
!
logging buffered 65536 debugging
!
clock timezone JST +9
!
no ip domain-lookup
!
ip multicast-routing
!
interface GigabitEthernet0/2
ip address 10.0.34.4 255.255.255.0
ip pim sparse-mode
no shutdown
!
interface GigabitEthernet0/3
ip address 10.0.24.4 255.255.255.0
ip pim sparse-mode
no shutdown
!
interface GigabitEthernet0/4
ip address 10.0.45.4 255.255.255.0
ip pim sparse-mode
no shutdown
!
router ospf 65000
router-id 10.4.4.4
passive-interface GigabitEthernet0/0
network 10.0.24.0 0.0.0.255 area 0.0.0.0
network 10.0.34.0 0.0.0.255 area 0.0.0.0
network 10.0.45.0 0.0.0.255 area 0.0.0.0
!
ip pim rp-address 10.3.3.3
ip pim spt-threshold infinity
!
line con 0
exec-timeout 60 0
privilege level 15
!
scheduler allocate 20000 1000
!
no banner exec ^C
no banner incoming ^C
no banner login ^CIOSv5
Receiver になる IOSv5 は Source となる IOSv1 同様、no ip routing でルーティングを無効化し、ip default-gateway [ADDRESS] でデフォルトゲートウェイだけ、設定しています。 マルチキャストの Receiver として動作させる為に ip igmp join-group [MCAST-ADDR] でマルチキャストグループに参加します。
hostname IOSv5
!
no service config
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
!
logging buffered 65536 debugging
!
clock timezone JST +9
!
no ip routing
!
no ip domain-lookup
!
interface GigabitEthernet0/4
ip address 10.0.45.5 255.255.255.0
ip igmp join-group 224.1.1.1
no shutdown
!
ip default-gateway 10.0.45.4
!
line con 0
exec-timeout 60 0
privilege level 15
!
scheduler allocate 20000 1000
!
no banner exec ^C
no banner incoming ^C
no banner login ^C状態確認
1. show ip pim interface
IOSv1
IOSv1# show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl PriorIOSv2
IOSv2# show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
10.0.12.2 GigabitEthernet0/0 v2/S 0 30 1 10.0.12.2
10.0.23.2 GigabitEthernet0/1 v2/S 1 30 1 10.0.23.3
10.0.24.2 GigabitEthernet0/3 v2/S 1 30 1 10.0.24.4IOSv3
IOSv3# show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
10.3.3.3 Loopback0 v2/S 0 30 1 10.3.3.3
10.0.23.3 GigabitEthernet0/1 v2/S 1 30 1 10.0.23.3
10.0.34.3 GigabitEthernet0/2 v2/S 1 30 1 10.0.34.4IOSv4
IOSv4# show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
10.0.34.4 GigabitEthernet0/2 v2/S 1 30 1 10.0.34.4
10.0.24.4 GigabitEthernet0/3 v2/S 1 30 1 10.0.24.4
10.0.45.4 GigabitEthernet0/4 v2/S 0 30 1 10.0.45.4IOSv5
IOSv5# show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior2. show ip pim neighbor
IOSv1
IOSv1# show ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable, G - GenID Capable,
L - DR Load-balancing Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/ModeIOSv2
IOSv2# show ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable, G - GenID Capable,
L - DR Load-balancing Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.23.3 GigabitEthernet0/1 00:04:56/00:01:23 v2 1 / DR S P G
10.0.24.4 GigabitEthernet0/3 00:04:56/00:01:20 v2 1 / DR S P GIOSv3
IOSv3# show ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable, G - GenID Capable,
L - DR Load-balancing Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.23.2 GigabitEthernet0/1 00:04:46/00:01:43 v2 1 / S P G
10.0.34.4 GigabitEthernet0/2 00:04:46/00:01:19 v2 1 / DR S P GIOSv4
IOSv4# show ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable, G - GenID Capable,
L - DR Load-balancing Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.34.3 GigabitEthernet0/2 00:04:51/00:01:23 v2 1 / S P G
10.0.24.2 GigabitEthernet0/3 00:04:50/00:01:42 v2 1 / S P GIOSv5
IOSv5# show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
IOSv5#
IOSv5# show ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable, G - GenID Capable,
L - DR Load-balancing Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode3. show ip pim rp mapping
IOSv1
IOSv1# show ip pim rp mapping
PIM Group-to-RP MappingsIOSv2
IOSv2# show ip pim rp mapping
PIM Group-to-RP Mappings
Group(s): 224.0.0.0/4, Static
RP: 10.3.3.3 (?)IOSv3
IOSv3# show ip pim rp mapping
PIM Group-to-RP Mappings
Group(s): 224.0.0.0/4, Static
RP: 10.3.3.3 (?)IOSv4
IOSv4# show ip pim rp mapping
PIM Group-to-RP Mappings
Group(s): 224.0.0.0/4, Static
RP: 10.3.3.3 (?)IOSv5
IOSv5# show ip pim rp mapping
PIM Group-to-RP Mappings4. show ip rpf
IOSv1
IOSv1# show ip rpf 10.0.12.1
failed, no PIM enabled interfacesIOSv2
IOSv2# show ip rpf 10.0.12.1
RPF information for ? (10.0.12.1)
RPF interface: GigabitEthernet0/0
RPF neighbor: ? (10.0.12.1) - directly connected
RPF route/mask: 10.0.12.0/24
RPF type: multicast (connected)
Doing distance-preferred lookups across tables
RPF topology: ipv4 multicast baseIOSv3
IOSv3# show ip rpf 10.0.12.1
RPF information for ? (10.0.12.1)
RPF interface: GigabitEthernet0/1
RPF neighbor: ? (10.0.23.2)
RPF route/mask: 10.0.12.0/24
RPF type: unicast (ospf 65000)
Doing distance-preferred lookups across tables
RPF topology: ipv4 multicast base, originated from ipv4 unicast baseIOSv4
IOSv4# show ip rpf 10.0.12.1
RPF information for ? (10.0.12.1)
RPF interface: GigabitEthernet0/3
RPF neighbor: ? (10.0.24.2)
RPF route/mask: 10.0.12.0/24
RPF type: unicast (ospf 65000)
Doing distance-preferred lookups across tables
RPF topology: ipv4 multicast base, originated from ipv4 unicast baseIOSv5
IOSv5# show ip rpf 10.0.12.1
failed, no PIM enabled interfaces5. show ip mroute
IOSv1
IOSv1# show ip mroute
IP Multicast Forwarding is not enabled.
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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/ModeIOSv2
IOSv2# 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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:08:27/00:02:38, RP 10.3.3.3, flags: SJCL
Incoming interface: GigabitEthernet0/1, RPF nbr 10.0.23.3
Outgoing interface list:
GigabitEthernet0/0, Forward/Sparse, 00:08:26/00:02:38IOSv3
IOSv3# 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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.1.1.1), 00:07:22/00:03:00, RP 10.3.3.3, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
GigabitEthernet0/2, Forward/Sparse, 00:07:22/00:03:00
(*, 224.0.1.40), 00:08:17/00:02:58, RP 10.3.3.3, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
GigabitEthernet0/2, Forward/Sparse, 00:07:22/00:02:58
GigabitEthernet0/1, Forward/Sparse, 00:07:26/00:02:53
Loopback0, Forward/Sparse, 00:08:15/00:02:47IOSv4
IOSv4# 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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.1.1.1), 00:08:23/00:02:40, RP 10.3.3.3, flags: SC
Incoming interface: GigabitEthernet0/2, RPF nbr 10.0.34.3
Outgoing interface list:
GigabitEthernet0/4, Forward/Sparse, 00:08:22/00:02:40
(*, 224.0.1.40), 00:08:23/00:02:49, RP 10.3.3.3, flags: SPCL
Incoming interface: GigabitEthernet0/2, RPF nbr 10.0.34.3
Outgoing interface list: NullIOSv5
IOSv5# show ip mroute
IP Multicast Forwarding is not enabled.
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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode6. 通信確認
IOSv1
Source である IOSv1 からマルチキャストグループ宛に Ping を実施し、Receiver から応答があることを確認します。
IOSv1# ping 224.1.1.1 repeat 5
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 224.1.1.1, timeout is 2 seconds:
.
Reply to request 1 from 10.0.45.5, 37 ms
Reply to request 2 from 10.0.45.5, 12 ms
Reply to request 3 from 10.0.45.5, 12 ms
Reply to request 4 from 10.0.45.5, 12 ms7. show ip mroute
IOSv1
IOSv1# show ip mroute
IP Multicast Forwarding is not enabled.
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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/ModeIOSv2
IOSv2# 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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.1.1.1), 00:00:31/stopped, RP 10.3.3.3, flags: SPF
Incoming interface: GigabitEthernet0/1, RPF nbr 10.0.23.3
Outgoing interface list: Null
(10.0.12.1, 224.1.1.1), 00:00:31/00:03:02, flags: FT
Incoming interface: GigabitEthernet0/0, RPF nbr 0.0.0.0
Outgoing interface list:
GigabitEthernet0/1, Forward/Sparse, 00:00:31/00:03:00
(*, 224.0.1.40), 00:10:05/00:02:55, RP 10.3.3.3, flags: SJCL
Incoming interface: GigabitEthernet0/1, RPF nbr 10.0.23.3
Outgoing interface list:
GigabitEthernet0/0, Forward/Sparse, 00:10:04/00:02:55IOSv3
IOSv3# 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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.1.1.1), 00:08:57/00:03:21, RP 10.3.3.3, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
GigabitEthernet0/2, Forward/Sparse, 00:08:57/00:03:21
(10.0.12.1, 224.1.1.1), 00:00:31/00:02:32, flags: T
Incoming interface: GigabitEthernet0/1, RPF nbr 10.0.23.2
Outgoing interface list:
GigabitEthernet0/2, Forward/Sparse, 00:00:31/00:03:21
(*, 224.0.1.40), 00:09:52/00:03:18, RP 10.3.3.3, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
GigabitEthernet0/2, Forward/Sparse, 00:08:57/00:03:18
GigabitEthernet0/1, Forward/Sparse, 00:09:01/00:03:13
Loopback0, Forward/Sparse, 00:09:51/00:02:09IOSv4
IOSv4# 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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.1.1.1), 00:10:00/00:02:09, RP 10.3.3.3, flags: SC
Incoming interface: GigabitEthernet0/2, RPF nbr 10.0.34.3
Outgoing interface list:
GigabitEthernet0/4, Forward/Sparse, 00:09:59/00:02:09
(*, 224.0.1.40), 00:10:00/00:02:13, RP 10.3.3.3, flags: SPCL
Incoming interface: GigabitEthernet0/2, RPF nbr 10.0.34.3
Outgoing interface list: NullIOSv5
IOSv5# show ip mroute
IP Multicast Forwarding is not enabled.
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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode障害時動作
IOSv2 ～ IOSv3 (RP) 間を閉塞し、障害時動作を確認します。
インターフェイス閉塞
IOSv2
IOSv2# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
IOSv2(config)# interface GigabitEthernet 0/1
IOSv2(config-if)# shutdown通信確認
IOSv1
IOSv1# ping 224.1.1.1 repeat 5
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 224.1.1.1, timeout is 2 seconds:
Reply to request 0 from 10.0.45.5, 61 ms
Reply to request 1 from 10.0.45.5, 29 ms
Reply to request 2 from 10.0.45.5, 14 ms
Reply to request 3 from 10.0.45.5, 9 ms
Reply to request 4 from 10.0.45.5, 9 msshow ip mroute
IOSv1
IOSv1# show ip mroute 224.1.1.1
Group 224.1.1.1 not foundIOSv2
IOSv2# show ip mroute 224.1.1.1
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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.1.1.1), 00:00:39/stopped, RP 10.3.3.3, flags: SPF
Incoming interface: GigabitEthernet0/3, RPF nbr 10.0.24.4
Outgoing interface list: Null
(10.0.12.1, 224.1.1.1), 00:00:39/00:02:54, flags: FT
Incoming interface: GigabitEthernet0/0, RPF nbr 0.0.0.0
Outgoing interface list:
GigabitEthernet0/3, Forward/Sparse, 00:00:38/00:02:51
IOSv3
IOSv3# show ip mroute 224.1.1.1
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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.1.1.1), 00:48:21/stopped, RP 10.3.3.3, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
GigabitEthernet0/2, Forward/Sparse, 00:48:21/00:02:46
(10.0.12.1, 224.1.1.1), 00:00:38/00:02:24, flags: PT
Incoming interface: GigabitEthernet0/2, RPF nbr 10.0.34.4
Outgoing interface list: NullIOSv4
IOSv4# show ip mroute 224.1.1.1
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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.1.1.1), 00:50:05/stopped, RP 10.3.3.3, flags: SC
Incoming interface: GigabitEthernet0/2, RPF nbr 10.0.34.3
Outgoing interface list:
GigabitEthernet0/4, Forward/Sparse, 00:50:04/00:02:59
(10.0.12.1, 224.1.1.1), 00:00:40/00:02:19, flags: T
Incoming interface: GigabitEthernet0/3, RPF nbr 10.0.24.2
Outgoing interface list:
GigabitEthernet0/4, Forward/Sparse, 00:00:40/00:02:59
IOSv5
IOSv5# show ip mroute 224.1.1.1
Group 224.1.1.1 not found
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