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Dell Configuration Guide for the S4048–ON System 9.14.2.6

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Enable PIM-SM

You must enable PIM-SM on each participating interface.

  1. Enable IPv4 or IPv6 multicast routing on the system.
    CONFIGURATION mode
    {ip | ipv6} multicast-routing [vrf vrf-name]
  2. Enable PIM-Sparse mode.
    INTERFACE mode
    {ip | ipv6} pim sparse-mode

Examples of Viewing PIM-SM Information

To display which interfaces are enabled with PIM-SM, use the show {ip | ipv6} pim interface command from EXEC Privilege mode.

Following is an example of show ip pim interface command output:

DellEMC#show ip pim interface 
Address          Interface Ver/   Nbr    Query  DR         DR
                           Mode   Count  Intvl  Prio
165.87.34.5      Te 1/10   v2/S   0      30     1          165.87.34.5
10.1.1.2         Vl 10     v2/S   1      30     1          10.1.1.2
20.1.1.5         Vl 20     v2/S   1      30     1          20.1.1.5
165.87.31.200    Vl 30     v2/S   1      30     1          165.87.31.201

Following is an example of show ipv6 pim interface command output:

DellEMC#show ipv6 pim interface 
Interface     Ver/     Nbr      Query    DR
              Mode     Count    Intvl    Prio
Te 1/1        v2/S     1        30       101         
Address : fe80::4e76:25ff:fee5:32c2
DR      : this router

Te 1/2        v2/S     1        30       100         
Address : fe80::4e76:25ff:fee5:32c2
DR      : this router

Te 1/3        v2/S     0        30       1           
Address : fe80::4e76:25ff:fee5:32c2
DR      : this router
NOTE You can influence the selection of the Rendezvous Point by enabling PIM-Sparse mode on a Loopback interface and assigning a low IP address.

To display PIM neighbors for each interface, use the show {ip | ipv6} pim neighbor [detail] command EXEC Privilege mode.

Following is an example of show ip pim neighbor command output:

DellEMC#show ip pim neighbor
Neighbor     Interface Uptime/Expires     Ver  DR
Address                                        Prio/Mode
127.87.5.5   Te 1/11   01:44:59/00:01:16  v2   1 / S
127.87.3.5   Te 1/12   01:45:00/00:01:16  v2   1 / DR
127.87.50.5  Te 2/13   00:03:08/00:01:37  v2   1 / S
DellEMC#

Following is an example of show ipv6 pim neighbor command output:

DellEMC#show ipv6 pim neighbor
Neighbor                   Interface Uptime/Expires     Ver  DR
Address                                                      Prio/Mode
fe80::201:e8ff:fe02:140f   Te 1/11   01:44:59/00:01:16  v2   1 / S
fe80::201:e8ff:fe00:6265   Te 1/12   01:45:00/00:01:16  v2   1 / DR
DellEMC#

To display the PIM routing table, use the show {ip | ipv6} pim tib [group-address [source-address]] command from EXEC privilege mode.

Following is an example of show ip pim tib command output:

DellEMC#show ip pim tib

PIM Multicast Routing Table
Flags: D - Dense, S - Sparse, C - Connected, L - Local, P - Pruned,
       R - RP-bit set, F - Register flag, T - SPT-bit set, J - Join SPT,
Timers: Uptime/Expires
Interface state: Interface, next-Hop, State/Mode

(*, 192.1.2.1), uptime 00:29:36, expires 00:03:26, RP 10.87.2.6, flags: SCJ
  Incoming interface: TenGigabitEthernet 1/12, RPF neighbor 10.87.3.5
  Outgoing interface list:
    TenGigabitEthernet 1/11
    TenGigabitEthernet 1/13

(10.87.31.5, 192.1.2.1), uptime 00:01:24, expires 00:02:26, flags: FT
  Incoming interface: TenGigabitEthernet 1/10, RPF neighbor 0.0.0.0
  Outgoing interface list:
    TenGigabitEthernet 1/11
    TenGigabitEthernet 1/12
    TenGigabitEthernet 1/13
--More--

Following is an example of show ipv6 pim tib command output:

DellEMC#show ipv6 pim tib
PIM Multicast Routing Table 
Flags: D - Dense, S - Sparse, C - Connected, L - Local, P - Pruned, 
       R - RP-bit set, F - Register flag, T - SPT-bit set, J - Join SPT, 
 Timers: Uptime/Expires 
 Interface state: Interface, next-Hop, State/Mode 

 (*, ff0e::225:1:2:1), uptime 00:29:36, expires 00:03:26, RP 10.87.2.6, flags: SCJ 
 Incoming interface: TenGigabitEthernet 1/12, RPF neighbor 35::1 
 Outgoing interface list: 
 TenGigabitEthernet 1/11 
 TenGigabitEthernet 1/13 

 (25::1, ff0e::225:1:2:1), uptime 00:01:24, expires 00:02:26, flags: FT 
 Incoming interface: TenGigabitEthernet 1/10, RPF neighbor 35::1 
 Outgoing interface list: 
 TenGigabitEthernet 1/11 
 TenGigabitEthernet 1/12 
 TenGigabitEthernet 1/13


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