R0106-HP MSR Router Series Layer 3 - IP Routing Command Reference(V7)

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Usage guidelines
The split horizon function prevents routing loops. If you want to disable this function, make sure the
operation is indispensable.
If both poison reverse and split horizon are enabled, only the poison reverse function takes effect.
On NBMA networks, such as FR and X.25 where multiple VCs are configured on the primary and
secondary interfaces, disable split horizon to ensure correct route advertisement. For more information,
see Layer 2—WAN Configuration Guide.
Examples
# Enable the split horizon function on GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] ripng split-horizon
ripng summary-address
Use ripng summary-address to configure a summary network to be advertised through the interface.
Use undo ripng summary-address to remove the summary.
Syntax
ripng summary-address ipv6-address prefix-length
undo ripng summary-address ipv6-address prefix-length
Default
The summary network to be advertised through the interface is not configured.
Views
Interface view
Predefined user roles
network-admin
Parameters
ipv6-address: Specifies the destination IPv6 address of the summary route.
prefix-length: Specifies the prefix length of the destination IPv6 address of the summary route, in the
range of 0 to 128. It indicates the number of consecutive 1s of the prefix, which defines the network ID.
Usage guidelines
Networks on the summary network will not be advertised. The cost of the summary route is the lowest cost
among summarized routes.
Examples
# Assign an IPv6 address with the 64-bit prefix to GigabitEthernet 2/1/1 and configure a summary with
the 35-bit prefix.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] ipv6 address 2001:200::3EFF:FE11:6770/64
[Sysname-GigabitEthernet2/1/1] ripng summary-address 2001:200:: 35