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Configure VRF-lite | Page 85
Route Limits
Configuring Dynamic route limits
AW+ supports the ability to limit dynamic routes via the max-fib-routes command in the
global VRF domain, which is unlimited by default. This same AW+ command is now also able
to be applied on a per VRF basis.
max-fib-routes
Description Use the command max-fib-routes to set the maximum number of dynamic routes in FIB
(Forwarding Information Base). Static and Connected routes are not included. Dynamic
routes to be added to the HW FIB table that exceed the configured limit are rejected.
When an additional threshold value (in percentage) is configured, a warning message is
generated if the number of dynamic routes in the FIB exceeds the threshold, and the routes
exceeding the limit are rejected.If warning-only is specified, routes are still allowed to be
added, but a warning message is generated when the threshold is reached.
When this command is executed in VRF Configuration mode, it sets the maximum number
of dynamic routes that can be added to the HW FIB table associated with the VRF instance.
Command
Syntax
max-fib-routes <1-4294967294> (<1-100>|warning-only|)
Default By default, the maximum number of dynamic routes is 4294967294 and no warning
threshold is set.
Command
Level
Warning thresholds (percentage) can be configured for dynamic route limits.
awplus(vrf-config)# max-fib-routes <1-4294967294> WARNING-
THRESHOLD%
Examples To set the maximum number of dynamic routes to 2000 and warning threshold with 75%,
applied to VRF red HW FIB, configure the following:
PARAMETER DESCRIPTION
max-fib-routes Set maximum fib routes number
<1- 4294967294> Allowed number of fib routes excluding Connect and Static
<1-100> Warning threshold in percentage
warning-only Allow to add more routes than the limit but with warning message
PROMPT MODE PRIVILEGE LEVEL
(config) CONFIG_MODE PRIVILEGE_MAX
(config-vrf) VRF_MODE PRIVILEGE_VR_MAX