ipmsi-to-spmsi switch immediately(VPN instance IPv6 address family MVPN view)

Function

The ipmsi-to-spmsi switch immediately command enables immediate switching from an I-PMSI tunnel to an S-PMSI tunnel.

The undo ipmsi-to-spmsi switch immediately command disables immediate switching from an I-PMSI tunnel to an S-PMSI tunnel.

By default, immediate switching from an I-PMSI tunnel to an S-PMSI tunnel is disabled.

Format

ipmsi-to-spmsi switch immediately

undo ipmsi-to-spmsi switch immediately

Parameters

None

Views

VPN instance IPv6 address family MVPN view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mvpn	write

Usage Guidelines

Usage Scenario

If immediate switching from an I-PMSI tunnel to an S-PMSI tunnel is enabled in the MVPN view, an S-PMSI tunnel is created when the sender PE generates an SG entry with the outbound interface being an MTI, and a switchover from the I-PMSI tunnel to the S-PMSI tunnel is triggered immediately.After immediate switching from an I-PMSI tunnel to an S-PMSI tunnel is configured, traffic of (S, G) entries can be carried on the S-PMSI tunnel faster than before, reducing multicast traffic waste.

Follow-up Procedure

Configure a PMSI tunnel policy.

Precautions

After the ipmsi-to-spmsi switch immediately command is run, the switchover threshold configured in the SPMSI tunnel view does not take effect.

Example

# Enter the MVPN view, and configure immediate switching from an I-PMSI tunnel to an S-PMSI tunnel.

<HUAWEI> system-view
[~HUAWEI] multicast ipv6 mvpn 2.2.2.2
[*HUAWEI] ip vpn-instance mcast1
[*HUAWEI-vpn-instance-mcast1] ipv6-family
[*HUAWEI-vpn-instance-mcast1-af-ipv6] route-distinguisher 100:100
[*HUAWEI-vpn-instance-mcast1-af-ipv6] multicast ipv6 routing-enable
[*HUAWEI-vpn-instance-mcast1-af-ipv6] mvpn
[*HUAWEI-vpn-instance-mcast1-af-ipv6-mvpn] ipmsi-to-spmsi switch immediately