c-bsr global (IPv6)
Function
The c-bsr global command configures the switch as a C-BSR in the global domain.
The undo c-bsr global command restores the default configuration.
By default, no C-BSR is configured in the global domain.
Parameters
| Parameter | Description | Value |
|---|---|---|
| hash-length hash-length | Specifies the hash mask length of a C-BSR in the global domain. | The value is an integer that ranging from 0 to 128. By default, the value is 126. |
| priority priority | Specifies the priority of the C-BSR in the global domain. | The value is an integer that ranges from 0 to 255. By default, it is 0. The greater the value, the higher the priority of the C-BSR. |
Usage Guidelines
Usage Scenario
A PIM-SM network is divided into multiple BSR administrative domains and a global domain. The global domain maintains a BSR that serves the remaining multicast groups.
The c-bsr global command configures the switch as a C-BSR in the global domain. The BSR in the global domain is generated through election.
The C-BSR with the highest priority is elected as the BSR.
In the case of the same priority, the C-BSR with the highest IP address is elected as the BSR.
A global domain contains all the switches on the PIM-SM network. The multicast packet that does not belong to any BSR administrative domain can be transmitted on the entire PIM network.
The multicast group that does not belong to any BSR administrative domain belongs to a global domain.
Multicast information of a global domain can be transmitted in the entire global domain and traverse any BSR administrative domain.
Prerequisites
IPv6 multicast routing has been enabled using the multicast ipv6 routing-enable command in the system view.
Precautions
The c-bsr global command takes effect only in a BSR administrative domain and can enable a device in this BSR administrative domain to accept multicast data for groups beyond the address range of the administrative domain.