Multicast Routing Sparse Dense Mode

Pada Multicast routing sparse dense mode, pemilihan RP dilakukan secara Auto dengan mengkonfigurasikan mapping agent.

Bagi yang belum baca, silakan kunjungi link ini

Topologi Lab :

Konfigurasi R1 :

ip multicast-routing

interface Loopback0
 ip address 1.1.1.1 255.255.255.255
 ip pim sparse-dense-mode
!
interface Ethernet0/0
 ip address 12.12.12.1 255.255.255.0
 ip pim sparse-dense-mode

router ospf 1
 network 0.0.0.0 255.255.255.255 area 0

Konfigurasi R2 :

ip multicast-routing

interface Loopback0
 ip address 2.2.2.2 255.255.255.255
 ip pim sparse-dense-mode
!
interface Ethernet0/0
 ip address 12.12.12.2 255.255.255.0
 ip pim sparse-dense-mode
!
interface Ethernet0/1
 ip address 23.23.23.2 255.255.255.0
 ip pim sparse-dense-mode
!
router ospf 1
 network 0.0.0.0 255.255.255.255 area 0

ip pim send-rp-announce Loopback0 scope 255  ------>> menjadikan Lo0 R2 sbgai RP
ip pim send-rp-discovery scope 255 ------>> utk menjadikan Mapping Agent


Konfigurasi R3 :

ip multicast-routing

interface Loopback0
 ip address 3.3.3.3 255.255.255.0
 ip pim sparse-dense-mode
 ip igmp join-group 239.0.0.1
!
interface Ethernet0/0
 ip address 23.23.23.3 255.255.255.0
 ip pim sparse-dense-mode

router ospf 1
 network 0.0.0.0 255.255.255.255 area 0


Verifikasi :
R2#sh ip pim rp mapp
PIM Group-to-RP Mappings
This system is an RP (Auto-RP)  -------->> sbgai RP
This system is an RP-mapping agent ------>> sbgai Mapping Agent

Group(s) 224.0.0.0/4
  RP 2.2.2.2 (?), v2v1
    Info source: 2.2.2.2 (?), elected via Auto-RP
         Uptime: 00:10:57, expires: 00:02:03

R3#sh ip pim rp mapp
PIM Group-to-RP Mappings

Group(s) 224.0.0.0/4
  RP 2.2.2.2 (?), v2v1
    Info source: 23.23.23.2 (?), elected via Auto-RP
         Uptime: 00:14:59, expires: 00:02:56

R1#ping 239.0.0.1  
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.0.0.1, timeout is 2 seconds:

Reply to request 0 from 3.3.3.3, 19 ms
Reply to request 0 from 3.3.3.3, 43 ms

R1#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, 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,
       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), 00:01:10/stopped, RP 2.2.2.2, flags: SPF
  Incoming interface: Ethernet0/0, RPF nbr 12.12.12.2
  Outgoing interface list: Null

(1.1.1.1, 239.0.0.1), 00:00:55/00:02:04, flags: FT
  Incoming interface: Loopback0, RPF nbr 0.0.0.0, Registering
  Outgoing interface list:
    Ethernet0/0, Forward/Sparse-Dense, 00:00:55/00:02:34

(12.12.12.2, 239.0.0.1), 00:01:10/00:01:49, flags: PT
  Incoming interface: Ethernet0/0, RPF nbr 12.12.12.2
  Outgoing interface list: Null

(*, 230.0.0.1), 00:02:02/stopped, RP 2.2.2.2, flags: SPF
  Incoming interface: Ethernet0/0, RPF nbr 12.12.12.2
  Outgoing interface list: Null

(1.1.1.1, 230.0.0.1), 00:02:02/00:00:57, flags: PFT
  Incoming interface: Loopback0, RPF nbr 0.0.0.0
  Outgoing interface list: Null

(*, 224.0.1.39), 00:18:04/stopped, RP 0.0.0.0, flags: DC
  Incoming interface: Null, RPF nbr 0.0.0.0
  Outgoing interface list:
    Ethernet0/0, Forward/Sparse-Dense, 00:18:04/stopped

(2.2.2.2, 224.0.1.39), 00:18:04/00:02:45, flags: PT
  Incoming interface: Ethernet0/0, RPF nbr 12.12.12.2
  Outgoing interface list: Null

(*, 224.0.1.40), 00:18:04/stopped, RP 0.0.0.0, flags: DCL
  Incoming interface: Null, RPF nbr 0.0.0.0
  Outgoing interface list:
    Loopback0, Forward/Sparse-Dense, 00:18:04/stopped
    Ethernet0/0, Forward/Sparse-Dense, 00:18:04/stopped

(12.12.12.2, 224.0.1.40), 00:18:04/00:02:50, flags: LT
  Incoming interface: Ethernet0/0, RPF nbr 12.12.12.2
  Outgoing interface list:
    Loopback0, Forward/Sparse-Dense, 00:18:04/stopped