resolve-request-holdcount
Syntax
resolve-request-holdcountcount;
Hierarchy Level
[edit logical-systems name routing-instances name routing-options multicast], [edit logical-systems name routing-options multicast], [edit logical-systems name tenants name routing-instances name routing-options multicast], [edit routing-instances name routing-options multicast], [edit routing-options multicast],
Description
Configure the number of initial multicast packets the kernel holds while resolving a multicast route.
In EVPN fabrics, caching these packets during route resolution can lead to transient flooding on Layer 2 interfaces and cause non-interested receiver devices to install Layer 3 multicast routes in the Routing Engine and Packet Forwarding Engine, consuming hardware resources until the routes time out.
Setting the hold count to 0 prevents the kernel from caching the initial multicast packets during route resolution and prevents unnecessary route installation on systems without interested receivers.
resolve-request-holdcount, deactivate and then activate PIM to push
the updated hold count to the kernel for resolve routes.Options
count—Number of initial multicast packets the kernel holds while
resolving a multicast route. Set count to 0 to disable
packet caching during route resolution.
Default
If you do not include the resolve-request-holdcount statement, the
kernel caches 12 initial multicast packets while resolving a multicast route.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 26.2R1.