DynagenでCCIEを目指す
20100626 Anycast RP
最終更新：
it_certification
-
view
目的
- マルチキャスト環境において、RPを冗長化する設定を確認します。
構成
- 設定概要
- Loopback AdapterとR1 f1/0を接続します
- EIGRPによってルーティングします。
- 構成図
- netファイル
model = 3620
[localhost]
[[3620]]
image = C:\Program Files\Dynamips\images\c3620-j1s3-mz.123-18.bin
ram = 128
[[ROUTER R1]]
f1/0 = NIO_gen_eth:\Device\NPF_{EEC4A317-FFD6-4B4A-9787-64BB3651D3B0}
e0/0 = R2 e0/0
e0/1 = R3 e0/1
[[ROUTER R2]]
e0/2 = R3 e0/2
[[ROUTER R3]]
- 初期設定 R1
! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip subnet-zero ! ! ! ip cef ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface Ethernet0/0 ip address 192.168.12.1 255.255.255.0 half-duplex ! interface Ethernet0/1 ip address 192.168.13.1 255.255.255.0 half-duplex ! interface Ethernet0/2 no ip address shutdown half-duplex ! interface Ethernet0/3 no ip address shutdown half-duplex ! interface FastEthernet1/0 ip address 192.168.1.1 255.255.255.0 duplex auto speed auto ! router eigrp 1 passive-interface default no passive-interface Ethernet0/0 no passive-interface Ethernet0/1 network 1.1.1.1 0.0.0.0 network 192.168.1.1 0.0.0.0 network 192.168.12.1 0.0.0.0 network 192.168.13.1 0.0.0.0 no auto-summary ! ip http server ip classless ! ! ! ! ! ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end
- 初期設定 R2
! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R2 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip subnet-zero ! ! ! ip cef ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 2.2.2.2 255.255.255.255 ! interface Ethernet0/0 ip address 192.168.12.2 255.255.255.0 half-duplex ! interface Ethernet0/1 no ip address shutdown half-duplex ! interface Ethernet0/2 ip address 192.168.23.2 255.255.255.0 half-duplex ! interface Ethernet0/3 no ip address shutdown half-duplex ! router eigrp 1 passive-interface default no passive-interface Ethernet0/0 no passive-interface Ethernet0/2 network 2.2.2.2 0.0.0.0 network 192.168.12.2 0.0.0.0 network 192.168.23.2 0.0.0.0 no auto-summary ! ip http server ip classless ! ! ! ! ! ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end
- 初期設定 R3
! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R3 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip subnet-zero ! ! ! ip cef ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 3.3.3.3 255.255.255.255 ! interface Ethernet0/0 no ip address shutdown half-duplex ! interface Ethernet0/1 ip address 192.168.13.3 255.255.255.0 half-duplex ! interface Ethernet0/2 ip address 192.168.23.3 255.255.255.0 half-duplex ! interface Ethernet0/3 no ip address shutdown half-duplex ! router eigrp 1 passive-interface default no passive-interface Ethernet0/1 no passive-interface Ethernet0/2 network 3.3.3.3 0.0.0.0 network 192.168.13.3 0.0.0.0 network 192.168.23.3 0.0.0.0 no auto-summary ! ip http server ip classless ! ! ! ! ! ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end
検証1 検証環境構築
- PIMの設定
R1, R2, R3の各I/Fに対して、PIMを有効にします。
R1(config)#ip multicast-routing R1(config)#ip pim spt-threshold infinity R1(config)# R1(config)# R1(config)#interface FastEthernet 1/0 R1(config-if)#ip pim sparse-mode R1(config-if)# *Mar 1 00:14:06.975: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 192.168.1.1 on interface FastEthernet1/0 (vrf default) R1(config-if)#exit R1(config)# R1(config)#interface range Ethernet 0/0 - 1 R1(config-if-range)#ip pim sparse-mode R1(config-if-range)# *Mar 1 00:14:25.959: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 192.168.12.1 on interface Ethernet0/0 (vrf default) *Mar 1 00:14:26.959: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 192.168.13.1 on interface Ethernet0/1 (vrf default) R1(config-if-range)#exit R1(config)# R1(config)# R1(config)#interface Loopback 0 R1(config-if)#ip pim sparse-mode R1(config-if)# *Mar 1 00:14:43.139: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 1.1.1.1 on interface Loopback0 (vrf default) R1(config-if)# R2(config)#ip multicast-routing R2(config)# R2(config)# R2(config)#interface Loopback 0 R2(config-if)#ip pim sparse-mode R2(config-if)# *Mar 1 00:16:29.019: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 2.2.2.2 on interface Loopback0 (vrf default) R2(config-if)#exit R2(config)# R2(config)# R2(config)#interface Ethernet 0/0 R2(config-if)#ip pim sparse-mode R2(config-if)# *Mar 1 00:16:42.259: %PIM-5-NBRCHG: neighbor 192.168.12.1 UP on interface Ethernet0/0 (vrf default) *Mar 1 00:16:44.107: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 192.168.12.2 on interface Ethernet0/0 (vrf default) R2(config-if)#exit R2(config)# R2(config)#interface Ethernet 0/2 R2(config-if)#ip pim sparse-mode R2(config-if)# *Mar 1 00:17:03.791: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 192.168.23.2 on interface Ethernet0/2 (vrf default) R3(config)#ip multicast-routing R3(config)# R3(config)# R3(config)#interface Loopback 0 R3(config-if)#ip pim sparse-mode R3(config-if)# *Mar 1 00:19:34.179: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 3.3.3.3 on interface Loopback0 (vrf default) R3(config-if)#exit R3(config)# R3(config)# R3(config)#interface range Ethernet 0/1 - 2 R3(config-if-range)#ip pim sparse-mode R3(config-if-range)# *Mar 1 00:19:49.235: %PIM-5-NBRCHG: neighbor 192.168.23.2 UP on interface Ethernet0/2 (vrf default) *Mar 1 00:19:49.247: %PIM-5-NBRCHG: neighbor 192.168.13.1 UP on interface Ethernet0/1 (vrf default) *Mar 1 00:19:50.131: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 192.168.13.3 on interface Ethernet0/1 (vrf default) *Mar 1 00:19:51.131: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 192.168.23.3 on interface Ethernet0/2 (vrf default) R3(config-if-range)#
- PIMの確認
各I/Fに対してPIMが設定されている事とPIM neighborが確立されている事を確認します。
R1#show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
192.168.1.1 FastEthernet1/0 v2/S 0 30 1 192.168.1.1
192.168.12.1 Ethernet0/0 v2/S 1 30 1 192.168.12.2
192.168.13.1 Ethernet0/1 v2/S 1 30 1 192.168.13.3
1.1.1.1 Loopback0 v2/S 0 30 1 1.1.1.1
R1#
R1#
R1#
R1#show ip pim neighbor
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
192.168.12.2 Ethernet0/0 00:03:23/00:01:19 v2 1 / DR S
192.168.13.3 Ethernet0/1 00:00:38/00:01:36 v2 1 / DR S
R1#
R2#show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
2.2.2.2 Loopback0 v2/S 0 30 1 2.2.2.2
192.168.12.2 Ethernet0/0 v2/S 1 30 1 192.168.12.2
192.168.23.2 Ethernet0/2 v2/S 1 30 1 192.168.23.3
R2#
R2#
R2#show ip pim neighbor
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
192.168.12.1 Ethernet0/0 00:04:14/00:01:27 v2 1 / S
192.168.23.3 Ethernet0/2 00:01:29/00:01:15 v2 1 / DR S
R2#
R3#show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
3.3.3.3 Loopback0 v2/S 0 30 1 3.3.3.3
192.168.13.3 Ethernet0/1 v2/S 1 30 1 192.168.13.3
192.168.23.3 Ethernet0/2 v2/S 1 30 1 192.168.23.3
R3#
R3#
R3#show ip pim neighbor
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
192.168.13.1 Ethernet0/1 00:01:54/00:01:18 v2 1 / S
192.168.23.2 Ethernet0/2 00:01:54/00:01:19 v2 1 / S
R3#
- 同一IPアドレスの付与
RPを冗長化するために、R2, R3に対して同一のIPアドレスを設定します。この時に使用したLoopback I/Fに対してPIMを有効にする設定も、ついでに投入します。
R2(config)#interface Loopback 23 R2(config-if)#ip address 23.23.23.23 255.255.255.255 R2(config-if)#ip pim sparse-mode R3(config)#interface Loopback 23 R3(config-if)#ip address 23.23.23.23 255.255.255.255 R3(config-if)#ip pim sparse-mode
- IGPの設定
R2, R3の同一IPアドレスへのルーティングを定義します。検証の都合上、同一IPアドレスへの経路は負荷分散されないよう、offsetを設定します。
R2(config)#router eigrp 1
R2(config-router)#network 23.23.23.23 0.0.0.0
R3(config)#router eigrp 1
R3(config-router)#network 23.23.23.23 0.0.0.0
R1(config)#access-list 23 permit 23.23.23.23
R1(config)#
R1(config)#
R1(config)#
R1(config)#router eigrp 1
R1(config-router)#offset-list 23 in 100 Ethernet 0/1
R1(config-router)#^Z
R1#
*Mar 1 00:24:35.043: %SYS-5-CONFIG_I: Configured from console by console
*Mar 1 00:24:43.019: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.13.3 (Ethernet0/1) is down: route configuration changed
*Mar 1 00:24:46.327: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 192.168.13.3 (Ethernet0/1) is up: new adjacency
R1#
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.12.0/24 is directly connected, Ethernet0/0
1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback0
C 192.168.13.0/24 is directly connected, Ethernet0/1
2.0.0.0/32 is subnetted, 1 subnets
D 2.2.2.2 [90/409600] via 192.168.12.2, 00:00:37, Ethernet0/0
3.0.0.0/32 is subnetted, 1 subnets
D 3.3.3.3 [90/409600] via 192.168.13.3, 00:00:37, Ethernet0/1
23.0.0.0/32 is subnetted, 1 subnets
D 23.23.23.23 [90/409600] via 192.168.12.2, 00:00:37, Ethernet0/0 <- 負荷分散されない事を確認
D 192.168.23.0/24 [90/307200] via 192.168.12.2, 00:00:37, Ethernet0/0
[90/307200] via 192.168.13.3, 00:00:37, Ethernet0/1
C 192.168.1.0/24 is directly connected, FastEthernet1/0
R1#
検証2 RPの設定
- RPの設定
R1をBSR候補、R2, R3をRP候補として設定します。
R1(config)#ip pim bsr-candidate Loopback 0 R2(config)#access-list 1 permit 239.1.1.1 R2(config)# R2(config)# R2(config)#ip pim rp-candidate Loopback 0 group-list 1 R3(config)#access-list 1 permit 239.1.1.1 R3(config)# R3(config)# R3(config)#ip pim rp-candidate Loopback 0 group-list 1
- RPの確認
R1, R2, R3がRPを認識している事を確認します。
R1(config)#no ip domain-lookup
R1(config)#^Z
R1#
*Mar 1 00:08:53.043: %SYS-5-CONFIG_I: Configured from console by console
R1#
R1#
R1#show ip pim rp mapping
PIM Group-to-RP Mappings
This system is the Bootstrap Router (v2)
Group(s) 239.1.1.1/32
RP 23.23.23.23 (?), v2
Info source: 192.168.12.2 (?), via bootstrap, priority 0, holdtime 150
Uptime: 00:02:21, expires: 00:02:05
R1#
R2(config)#no ip domain-lookup
R2(config)#^Z
R2#
*Mar 1 00:09:06.243: %SYS-5-CONFIG_I: Configured from console by console
R2#
R2#
R2#show ip pim rp mapping
PIM Group-to-RP Mappings
This system is a candidate RP (v2)
Group(s) 239.1.1.1/32
RP 23.23.23.23 (?), v2
Info source: 1.1.1.1 (?), via bootstrap, priority 0, holdtime 150
Uptime: 00:02:49, expires: 00:02:15
R2#
R3(config)#no ip domain-lookup
R3(config)#^Z
R3#
*Mar 1 00:09:22.471: %SYS-5-CONFIG_I: Configured from console by console
R3#
R3#
R3#show ip pim rp mapping
PIM Group-to-RP Mappings
This system is a candidate RP (v2)
Group(s) 239.1.1.1/32
RP 23.23.23.23 (?), v2
Info source: 1.1.1.1 (?), via bootstrap, priority 0, holdtime 150
Uptime: 00:01:53, expires: 00:02:16
R3#
検証3 MSDPの設定
- MSDPの設定
R2, R3間でMSDPの設定を行います
R2(config)#ip msdp peer 3.3.3.3 connect-source Loopback 0 R2(config)#ip msdp originator-id Loopback 0 R3(config)#ip msdp peer 2.2.2.2 connect-source Loopback 0 R3(config)#ip msdp originator-id Loopback 0 R3(config)# *Mar 1 00:34:44.543: %MSDP-5-PEER_UPDOWN: Session to peer 2.2.2.2 going up R3(config)#
- MSDPの確認
R2, R3が互いにMSDP peerとして認識しているかどうかを確認します。
R2#show ip msdp peer
MSDP Peer 3.3.3.3 (?), AS ?
Connection status:
State: Up, Resets: 0, Connection source: Loopback0 (2.2.2.2)
Uptime(Downtime): 00:02:02, Messages sent/received: 4/3
Output messages discarded: 0
Connection and counters cleared 00:03:02 ago
SA Filtering:
Input (S,G) filter: none, route-map: none
Input RP filter: none, route-map: none
Output (S,G) filter: none, route-map: none
Output RP filter: none, route-map: none
SA-Requests:
Input filter: none
Peer ttl threshold: 0
SAs learned from this peer: 0
Input queue size: 0, Output queue size: 0
R2#
R3#show ip msdp peer
MSDP Peer 2.2.2.2 (?), AS ?
Connection status:
State: Up, Resets: 0, Connection source: Loopback0 (3.3.3.3)
Uptime(Downtime): 00:03:26, Messages sent/received: 4/5
Output messages discarded: 0
Connection and counters cleared 00:03:56 ago
SA Filtering:
Input (S,G) filter: none, route-map: none
Input RP filter: none, route-map: none
Output (S,G) filter: none, route-map: none
Output RP filter: none, route-map: none
SA-Requests:
Input filter: none
Peer ttl threshold: 0
SAs learned from this peer: 0
Input queue size: 0, Output queue size: 0
R3#
検証4 正常系の経路確認
- マルチキャストレシーバの設定
R1 Loopback 0をマルチキャストグループに参加させます。また、参加させた事によって、R1, R2間で共有ツリーができた事が読み取れます。
R1(config)#interface Loopback 0
R1(config-if)#ip igmp join-group 239.1.1.1
R1(config-if)#^Z
R1#
*Mar 1 00:38:17.967: %SYS-5-CONFIG_I: Configured from console by console
R1#
R1#show ip mroute 239.1.1.1
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,
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
(*, 239.1.1.1), 00:01:42/00:02:17, RP 23.23.23.23, flags: SCL
Incoming interface: Ethernet0/0, RPF nbr 192.168.12.2
Outgoing interface list:
Loopback0, Forward/Sparse, 00:01:42/00:02:17
R1#
R2#show ip mroute 239.1.1.1
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,
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
(*, 239.1.1.1), 00:01:23/00:03:06, RP 23.23.23.23, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:01:23/00:03:06
R2#
R3#show ip mroute 239.1.1.1
Group 239.1.1.1 not found
R3#
- ping送信
ホストからマルチキャストのpingを送信します。
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\tmp>ipconfig
Windows IP Configuration
Ethernet adapter loopback:
Connection-specific DNS Suffix . :
IP Address. . . . . . . . . . . . : 192.168.1.100
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
Ethernet adapter ローカル エリア接続:
Media State . . . . . . . . . . . : Media disconnected
PPP adapter xxx:
Connection-specific DNS Suffix . :
IP Address. . . . . . . . . . . . : XX.XX.XX.XX
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : XX.XX.XX.XX
C:\Documents and Settings\tmp>
C:\Documents and Settings\tmp>
C:\Documents and Settings\tmp>
C:\Documents and Settings\tmp>route add 224.0.0.0 mask 240.0.0.0 19
2.168.1.1
C:\Documents and Settings\tmp>ping 239.1.1.1
Pinging 239.1.1.1 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 239.1.1.1:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Documents and Settings\tmp>
- マルチキャストルーティングテーブルの確認
pingを送信する事によって、共有ツリーだけでなく、送信元ツリーもできた事が確認できます。
R1#show ip mroute 239.1.1.1
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,
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
(*, 239.1.1.1), 00:04:07/stopped, RP 23.23.23.23, flags: SCLF
Incoming interface: Ethernet0/0, RPF nbr 192.168.12.2
Outgoing interface list:
Loopback0, Forward/Sparse, 00:04:07/00:02:47
(192.168.1.100, 239.1.1.1), 00:00:12/00:03:28, flags: LFT
Incoming interface: FastEthernet1/0, RPF nbr 0.0.0.0
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:00:12/00:03:28
Loopback0, Forward/Sparse, 00:00:12/00:02:47
R1#
R2#show ip mroute 239.1.1.1
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,
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
(*, 239.1.1.1), 00:04:13/00:03:21, RP 23.23.23.23, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:04:13/00:03:21
(192.168.1.100, 239.1.1.1), 00:00:19/00:02:47, flags: PTA
Incoming interface: Ethernet0/0, RPF nbr 192.168.12.1
Outgoing interface list: Null
R2#
R3#show ip mroute 239.1.1.1
Group 239.1.1.1 not found
R3#
検証5 異常系の経路確認
- ルータ再起動
Dynagenのコンソールに以下の通り入力し、R3を再起動させます。
=> reload R2 100-VM 'R2' stopped 100-VM 'R2' started
- ping
ホストからマルチキャストのpingを送信します。
C:\Documents and Settings\tmp>ping 239.1.1.1
Pinging 239.1.1.1 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 239.1.1.1:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Documents and Settings\tmp>
- マルチキャストルーティングテーブルの確認
RPがR2からR3に切り替わり、マルチキャストルーティングテーブルも変化した事が読み取れます。
R1#show ip mroute 239.1.1.1
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,
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
(*, 239.1.1.1), 00:08:21/stopped, RP 23.23.23.23, flags: SCL
Incoming interface: Ethernet0/0, RPF nbr 192.168.12.2
Outgoing interface list:
Loopback0, Forward/Sparse, 00:08:21/00:02:33
(192.168.1.100, 239.1.1.1), 00:00:43/00:03:23, flags: LFT
Incoming interface: FastEthernet1/0, RPF nbr 0.0.0.0
Outgoing interface list:
Ethernet0/1, Forward/Sparse, 00:00:43/00:03:04, A <- e0/0からe0/1に変化しました。
Loopback0, Forward/Sparse, 00:00:43/00:02:33
R1#show ip mroute 239.1.1.1
R3#show ip mroute 239.1.1.1
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,
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
(*, 239.1.1.1), 00:01:44/stopped, RP 23.23.23.23, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(192.168.1.100, 239.1.1.1), 00:01:44/00:01:54, flags: PMTA
Incoming interface: Ethernet0/1, RPF nbr 192.168.13.1
Outgoing interface list: Null
R3#
添付ファイル
