Install guide
IP Multicasting add pim bsrcandidate 45
add pim bsrcandidate
Syntax ADD PIM BSRCandidate [PREFerence=0..255]
[HAShmasklength=0..32] [BSMinterval={10..15000|
DEFault}] [INTerface=interface]
where interface is the name of the interface over which multicast data is
forwarded. The interface can be either a VLAN (e.g. vlan1) or a local interface
(e.g. local1).
Description This command configures the switch to be a Bootstrap Router candidate.
The preference parameter specifies the preference for the switch to become the
bootstrap router. A higher number means a higher priority. The default is 1.
The hashmasklength parameter specifies the number of bits of the group
number to use when selecting a rendezvous point (RP) candidate if this switch
becomes the BSR. A higher number increases the spread of groups across RPs.
The default is 30.
Note that software releases prior to 2.7.3 did not correctly support the PIM
hash mask length option. As a result, the RP selection calculation differs
between this release and release versions prior to 2.7.3. If a network contains
switches running a mixture of versions, this leads to incorrect forwarding
behaviour. To avoid this issue, either ensure that all devices on the network
correctly support the hash mask length option (recommended), or ensure that
the following both hold:
■ The hash mask length option on all BSR candidates is configured to 4 bits.
This implies that all BSR candidates must be running 2.7.3 or later.
■ All RP candidates use a common prefix of 224.0.0.0/240.0.0.0. This has the
side effect of collapsing all groups to use a single PIM RP.
The bsminterval parameter can be used to specify the time period in seconds
at which the switch sends bootstrap messages when it is elected as the
bootstrap router. The default is 60 seconds. This timer is now set with the set
pim command by preference because it applies globally to the PIM-SM
domain, but this parameter has been maintained to ensure backwards
compatibility.
The interface parameter specifies an interface for the switch to use when
advertising itself as a candidate bootstrap router. The IP address of this
interface is advertised by the router. The interface supplied can be either a
configured local interface or a configured VLAN interface. If the parameter is
not specified, the switch instead advertises its first active IP interface.
Examples To add the switch as a Bootstrap Router Candidate to a PIM domain, with a
preference of 10 to become the bootstrap router in the domain and a hash mask
length of 0, use the command:
add pim bsrcandidate preference=10 hasmasklength=0
Related Commands delete pim bsrcandidate
enable pim
set pim bsrcandidate
show pim
show pim bsrcandidate