HP 5500 Ei 5500 Si Switch Series Configuration Guide

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PIM-SSM configuration task list  
Task  Remarks 
Enabling PIM-SM  Required
 
Configuring the SSM group range  Optional
 
Configuring PIM common features  Optional
 
 
Configuration prerequisites 
Before you configure PIM-SSM, complete the following tasks:  
•  Configure any unicast routing protocol so that a ll devices in the domain are interoperable at the 
network layer. 
•   Determine the SSM group range. 
Enabling PIM-SM 
The implementation of the SSM model is based on so me subsets of PIM-SM....

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Step Command  Description  
5.  Enter interface view.  interface 
interface-type 
interface-number   N/A 
6.
  Bind the interface with a VPN 
instance.  ip binding vpn-instance
 
vpn-instance-name   By default, an interface belongs to 
the public network, and it is not 
bound with any VPN instance. 
7.
  Enable PIM-SM.  
pim sm  Disabled by default.
 
 
For more information about the  ip vpn-instance, route-distinguisher , and ip binding vpn-instance  
commands, see IP Routing Command Referenc
e....

 157 
•  If the same function or parameter is configured in both PIM view and interface view, the 
configuration in interface view has preference over the configuration in PIM view, regardless of the 
configuration sequence. 
PIM common feature configuration task list  
Task   Remarks 
Configuring a multicast data filter  Optional
 
Configuring a hello message filter  Optional 
Configuring PIM hello options Optional
 
Configuring the prune delay  Optional 
Configuring PIM common timers Optional...

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Configuring a multicast data filter 
In either a PIM-DM domain or a PIM-SM domain, routers can check passing-by multicast data based on 
the configured filtering rules and determine whether to continue forwarding the multicast data. In other 
words, PIM routers can act as multicast data filters. Th ese filters can help implement traffic control on one 
hand, and control the information available to receivers downstream to enhance data security on the 
other hand. 
Generally, a smaller distance from...

 159 
•  DR_Priority  (for PIM-SM only)—Priority for DR election. The device with the highest priority wins the 
DR election. You can configure this parameter on all the routers in a multi-access network directly 
connected to multicast sources or receivers. 
•   Holdtime —The timeout time of PIM neighbor reachability state. When this timer times out, if the 
router has received no hello message from a neighb or, it assumes that this neighbor has expired or 
become unreachable.  
•   LAN_Prune_Delay —The...

 160 
Configuring hello options on an interface 
 
Step Command  Remarks 
1.  Enter system view. system-view  N/A 
2.  Enter interface view.  interface 
interface-type 
interface-number   N/A
 
3.  Configure the priority for DR 
election.   pim hello-option dr-priority
 priority Optional. 
1 by default.
 
4.  Configure PIM neighbor 
timeout time.  pim hello-option holdtime 
interval Optional. 
105 seconds by default. 
 
5.  Configure the prune message 
delay time (LAN-delay).  pim hello-option lan-delay...

 161 
After receiving a hello message, a PIM router waits a random period, which is smaller than the maximum 
delay between hello messages, before sending a hello message. This delay avoids collisions that occur 
when multiple PIM routers send hello messages simultaneously.  
A PIM router periodically sends join/prune messages  to its upstream for state update. A join/prune 
message contains the join/prune timeout time. The up stream router sets a join/prune timeout timer for 
each pruned downstream...

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Step Command  Remarks 
6.  Configure the join/prune 
timeout time.   pim holdtime join-prune 
interval Optional. 
210 seconds by default. 
 
7.  Configure assert timeout time. 
pim holdtime assert interval  Optional. 
180 seconds by default.  
 
 
NOTE: 
If no special networking  requirements are raised, use the default settings.  
 
Configuring join/prune message sizes 
A  l arg e  s ize  of  a joi n/pru ne message  might res u l t i n  loss of a larger amount of information if a message 
is lost....

 163 
Before you configure this feature on an inter face, be sure to enable PIM-DM or PIM-SM on the inter face.  
To enable PIM to work with BFD: 
 
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter interface view. 
interface interface-type interface-number  N/A 
3.  Enable PIM to work 
with BFD.  pim bfd enable 
Disabled by default 
 
Setting the DSCP value for PIM messages  
Step Command Remarks  
1.  Enter system view. 
system-view  N/A 
2.  Enter public network IGMP 
view or...

 164 
Task  Command  Remarks 
Display the DF information of 
BIDIR-PIM.  display pim 
[ all-instance  | 
vpn-instance  vpn-instance-name  ] 
df-info  [ rp-address ] [ |  { begin | 
exclude  | include  } 
regular-expression  ]  Available in any view 
Display the information about 
unacknowledged PIM-DM graft 
messages.
  display pim
 [ all-instance  | 
vpn-instance  vpn-instance-name  ] 
grafts  [ | { begin  | exclude | 
include  } regular-expression ]
 Available in any view
 
Display the PIM information...