Multicast: Sparse-Mode: Configuring Auto RP – Part -II

Multicast: Sparse-Mode: Configuring Auto RP – Part -II

 

·         In the previous Post Sparse-Mode: Configuring Auto RP – Part -I, we have seen how to configure Auto-RP listener Multicast.

·         In this post, let me configure sparse-dense mode.

 

R1(config)#no ip pim autorp listener

R1(config)#

 

R2(config)#no ip pim autorp listener

R2(config)#

 

R3(config)#no ip pim autorp listener

R3(config)#

 

R1(config)#int fa0/0

R1(config-if)#no ip pim sparse-mode

R1(config-if)#ip pim sparse-dense-mode

R1(config-if)#

R1(config-if)#int loop0

R1(config-if)#no ip pim sparse-mode

R1(config-if)#ip pim sparse-dense-mode

R1(config-if)#

 

 

R2(config)#int fa0/0

R2(config-if)#no ip pim sparse-mode

R2(config-if)#

R2(config-if)#ip pim sparse-dense-mode

R2(config-if)#int fa0/1

R2(config-if)#no ip pim sparse-mode

R2(config-if)#ip pim sparse-dense-mode

R2(config-if)#int l

R2(config-if)#int loop0

R2(config-if)#no ip pim sparse-mode

R2(config-if)#ip pim sparse-dense-mode

R2(config-if)#

 

 

R3(config)#int fa0/1

R3(config-if)#no ip pim sparse-mode

R3(config-if)#

R3(config-if)#ip pim sparse-dense-mode

R3(config-if)#int loop0

R3(config-if)#no ip pim sparse-mode

R3(config-if)#ip pim sparse-dense-mode

R3(config-if)#

 

·         Now, let me verify RP mappings:

 

R1#show ip pim rp mapping

PIM Group-to-RP Mappings

This system is an RP-mapping agent (Loopback0)

 

Group(s) 224.0.0.0/4

  RP 2.2.2.2 (?), v2v1

    Info source: 2.2.2.2 (?), elected via Auto-RP

         Uptime: 00:55:54, expires: 00:02:16

R1#

 

R2#show ip pim rp mapping

PIM Group-to-RP Mappings

This system is an RP (Auto-RP)

 

Group(s) 224.0.0.0/4

  RP 2.2.2.2 (?), v2v1

    Info source: 1.1.1.1 (?), elected via Auto-RP

         Uptime: 00:57:24, expires: 00:02:10

R2#

 

R3#show ip pim rp mapping

PIM Group-to-RP Mappings

 

Group(s) 224.0.0.0/4

  RP 2.2.2.2 (?), v2v1

    Info source: 1.1.1.1 (?), elected via Auto-RP

         Uptime: 00:04:48, expires: 00:02:09

R3#

 

Observation:

·         R2’s loopback0, 2.2.2.2 is elected as RP

·         R1 is mapping agent

 

R1#ping 227.27.27.27

 

Type escape sequence to abort.

Sending 1, 100-byte ICMP Echos to 227.27.27.27, timeout is 2 seconds:

 

Reply to request 0 from 10.1.23.3, 64 ms

R1#

 

Observation:

·         Multicast functionality is working fine.

 

·         Now, let me see multicast routing tables:

 

R1#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

 

(*, 227.27.27.27), 00:01:22/stopped, RP 2.2.2.2, flags: SPF

  Incoming interface: FastEthernet0/0, RPF nbr 10.1.12.2

  Outgoing interface list: Null

 

(1.1.1.1, 227.27.27.27), 00:01:22/00:03:27, flags: FT

  Incoming interface: Loopback0, RPF nbr 0.0.0.0

  Outgoing interface list:

    FastEthernet0/0, Forward/Sparse-Dense, 00:01:22/00:03:06

 

(*, 224.0.1.39), 00:12:43/stopped, RP 0.0.0.0, flags: DCL

  Incoming interface: Null, RPF nbr 0.0.0.0

  Outgoing interface list:

    Loopback0, Forward/Sparse-Dense, 00:10:14/00:00:00

    FastEthernet0/0, Forward/Sparse-Dense, 00:10:26/00:00:00

 

(2.2.2.2, 224.0.1.39), 00:11:57/00:02:12, flags: LT

  Incoming interface: FastEthernet0/0, RPF nbr 10.1.12.2

  Outgoing interface list:

    Loopback0, Forward/Sparse-Dense, 00:10:14/00:00:00

 

(*, 224.0.1.40), 00:12:44/stopped, RP 0.0.0.0, flags: DCL

  Incoming interface: Null, RPF nbr 0.0.0.0

  Outgoing interface list:

    Loopback0, Forward/Sparse-Dense, 00:10:15/00:00:00

    FastEthernet0/0, Forward/Sparse-Dense, 00:10:27/00:00:00

 

(1.1.1.1, 224.0.1.40), 00:12:30/00:02:24, flags: LT

  Incoming interface: Loopback0, RPF nbr 0.0.0.0

  Outgoing interface list:

    FastEthernet0/0, Forward/Sparse-Dense, 00:10:27/00:00:00

 

R1#

 

R2#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

 

(*, 227.27.27.27), 00:49:40/00:02:53, RP 2.2.2.2, flags: S

  Incoming interface: Null, RPF nbr 0.0.0.0

  Outgoing interface list:

    FastEthernet0/1, Forward/Sparse-Dense, 00:08:35/00:02:53

 

(1.1.1.1, 227.27.27.27), 00:01:28/00:03:16, flags: T

  Incoming interface: FastEthernet0/0, RPF nbr 10.1.12.1

  Outgoing interface list:

    FastEthernet0/1, Forward/Sparse-Dense, 00:01:28/00:03:01

 

(*, 224.0.1.39), 00:12:03/stopped, RP 0.0.0.0, flags: DC

  Incoming interface: Null, RPF nbr 0.0.0.0

  Outgoing interface list:

    FastEthernet0/1, Forward/Sparse-Dense, 00:09:30/00:00:00

    FastEthernet0/0, Forward/Sparse-Dense, 00:09:37/00:00:00

 

(2.2.2.2, 224.0.1.39), 00:12:03/00:02:59, flags: T

  Incoming interface: Loopback0, RPF nbr 0.0.0.0

  Outgoing interface list:

    FastEthernet0/1, Prune/Sparse-Dense, 00:02:02/00:01:05

    FastEthernet0/0, Forward/Sparse-Dense, 00:09:40/00:00:00

 

(*, 224.0.1.40), 00:12:49/stopped, RP 0.0.0.0, flags: DCL

  Incoming interface: Null, RPF nbr 0.0.0.0

  Outgoing interface list:

    FastEthernet0/1, Forward/Sparse-Dense, 00:09:32/00:00:00

    FastEthernet0/0, Forward/Sparse-Dense, 00:09:40/00:00:00

 

(1.1.1.1, 224.0.1.40), 00:12:38/00:02:19, flags: LT

  Incoming interface: FastEthernet0/0, RPF nbr 10.1.12.1

  Outgoing interface list:

    FastEthernet0/1, Forward/Sparse-Dense, 00:09:32/00:00:00

 

R2#

 

R3#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

 

(*, 227.27.27.27), 03:46:03/stopped, RP 2.2.2.2, flags: SJCL

  Incoming interface: FastEthernet0/1, RPF nbr 10.1.23.2

  Outgoing interface list:

    Loopback0, Forward/Sparse-Dense, 00:07:19/00:02:43

 

(1.1.1.1, 227.27.27.27), 00:01:35/00:02:36, flags: LJT

  Incoming interface: FastEthernet0/1, RPF nbr 10.1.23.2

  Outgoing interface list:

    Loopback0, Forward/Sparse-Dense, 00:01:35/00:02:43

 

(*, 224.0.1.39), 00:12:11/stopped, RP 0.0.0.0, flags: D

  Incoming interface: Null, RPF nbr 0.0.0.0

  Outgoing interface list:

    FastEthernet0/1, Forward/Sparse-Dense, 00:07:26/00:00:00

 

(2.2.2.2, 224.0.1.39), 00:02:07/00:00:52, flags: PT

  Incoming interface: FastEthernet0/1, RPF nbr 10.1.23.2

  Outgoing interface list: Null

 

(*, 224.0.1.40), 00:12:53/stopped, RP 0.0.0.0, flags: DCL

  Incoming interface: Null, RPF nbr 0.0.0.0

  Outgoing interface list:

    FastEthernet0/1, Forward/Sparse-Dense, 00:07:27/00:00:00

 

(1.1.1.1, 224.0.1.40), 00:08:43/00:02:11, flags: PLTX

  Incoming interface: FastEthernet0/1, RPF nbr 10.1.23.2

  Outgoing interface list: Null

 

R3#

 

·         In the next post, let’s see how to configure RP-Announce-Filter