Viewing PIM-specific data

The commands in this section display PIM-specific multicast routing information for IP multicast groups detected by the router.

Viewing the current PIM status and global configuration

Syntax:

show ip pim

Displays PIM status and global parameters.

PIM Status

Shows either Enabled or Disabled.

State Refresh Interval (sec)

Applies only to PIM-DM operation.

Join/Prune Interval

Indicates the frequency with which the router transmits join and prune messages for the multicast groups the router is forwarding.

SPT Threshold

When Enabled, indicates that, for a given receiver joining a multicast group, an edge router changes from the RPT to the SPT after receiving the first packet of a multicast flow intended for a receiver connected to the router.

When Disabled, indicates that the no spt-threshold command has been used to disable SPT operation. (See Changing the shortest-path tree (SPT) operation.

Traps

Enables the following SNMP traps:

neighbor-loss

Sends a trap if a neighbor router is lost.

hardware-mrt-full

Sends a trap if the hardware multicast router table (MRT) is full (2048 active flows.)

software-mrt-full:

Sends a trap if the software multicast router table (MRT) is full (2048 active flows.) This can occur only if the hardware MRT is also full.

all

Enables all of the above traps.

none

No traps are set.
Output with PIM enabled
HP Switch(config)# show ip pim
 PIM Global Parameters
  PIM Status                   : Enabled
  State Refresh Interval (sec) : 60
  Join/Prune Interval (sec)    : 60
  SPT Threshold                : Enabled
  Traps                        : all

Displaying current PIM entries existing in the multicast routing table

Syntax:

show ip pim mroute

This command displays exactly the same output as the command show ip mroute.

Listing currently configured PIM interfaces

Syntax:

show ip pim interface

Lists the PIM interfaces (VLANs) currently configured in the router.

VLAN

Lists the vid of each VLAN configured on the switch to support PIM-DM.

IP Address

Lists the IP addresses of the PIM interfaces (VLANs.)

Mode

Shows dense or sparse, depending on which PIM protocol is configured on the router.
Two configured PIM interfaces
HP Switch(config)# show ip pim interface
 PIM Interfaces
  VLAN IP Address      Mode
  ---- --------------- ------------
  1    10.1.10.1       sparse
  2    10.2.10.1       sparse

Displaying IP PIM VLAN configurations

Syntax:

show ip pim interface [vid]

Displays the current configuration for the specified VLAN (PIM interface.)

PIM interface configuration settings

Field	Default	Control command
VLAN	N/A	vlan `vid` ip pim
IP	N/A	vlan `vid` ip pim all \| ip-addr
Mode	dense	n/a; PIM Dense only
Hello interval (sec)	300	ip pim hello interval 5 - 30
Hello delay	5	The router includes this value in the "Hello" packets that it sends to neighbor routers. Neighbor routers use this value to determine how long to wait for another Hello packet from the router. See Changing the interval for PIM-SM neighbor notification.
override interval (msec)	2500	vlan `vid` ip pim override-interval 500 - 6000
Propagation delay (msec)	500	vlan `vid` ip pim propagation-delay 250-2000
LAN prune delay	Yes	vlan `vid` ip pim lan-prune-delay
LAN delay enabled	No	Shows `Yes` if all multicast routers on the current VLAN interface enabled LAN-prune-delay. Otherwise, shows `No`.
DR priority	1	ip pim-sparse dr-priority 0 - 4294967295

Showing a PIM-SM interface configured on VLAN 1

HP Switch(config)# show ip pim interface 1
 PIM Interface
  VLAN       : 1
  IP Address : 10.1.10.1
  Mode       : sparse
    Designated Router : 10.1.10.1
  Hello Interval (sec)  : 30
  Hello Delay (sec)     : 5
  Override Interval (msec) : 2500     Lan Prune Delay           : Yes 
  Propagation Delay (msec) : 500      Lan Delay Enabled         : No 
  Neighbour Timeout        : 180      DR Priority               : 1

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Displaying PIM route data	home	Displaying PIM neighbor data

`Traps`	Enables the following SNMP traps:
`neighbor-loss`	Sends a trap if a neighbor router is lost.
`hardware-mrt-full`	Sends a trap if the hardware multicast router table (MRT) is full (2048 active flows.)
`software-mrt-full:`	Sends a trap if the software multicast router table (MRT) is full (2048 active flows.) This can occur only if the hardware MRT is also full.
`all`	Enables all of the above traps.
`none`	No traps are set.

`VLAN`	Lists the `vid` of each VLAN configured on the switch to support PIM-DM.
`IP Address`	Lists the IP addresses of the PIM interfaces (VLANs.)
`Mode`	Shows `dense` or `sparse`, depending on which PIM protocol is configured on the router.