Configuring Resilient Hashing for User Created VRF

Describes the process of configuring Resilient Hashing on SLX devices.

1. Navigate to the Configuration context using the conf term command.
   

   SLX# conf term
   SLX(config)#

2. Navigate into the VRF that you want to apply Resilient Hashing to.
   

   SLX (config)# vrf vrf2
   SLX (config-vrf-vrf2)# ?
   Possible completions:
       address-family Enter Address Family command mode
       describe Display transparent command information
       do Run an operational-mode command
       evpn VRF EVPN config
       exit Exit from current mode
       help Provide help information
       ip VRF specific IP commands
       no Negate a command or set its defaults
       pwd Display current mode path
       rd Configure Route Distinguisher
       resilient-hash Resilient hash
       top Exit to top level and optionally run command
       vpn-statistics VPN Statistics
   

3. Use the resilient-hash command to configure.
   

   SLX (config-vrf-vrf2)# resilient-hash ?
   Possible completions:
       ecmp        Resilient hash ECMP
       max-path    Resilient hash max path (8|16|64)
   
   SLX (config-vrf-vrf2)# resilient-hash ecmp ?
   Possible completions:
       enable      Enable resilient hash ECMP
   
   SLX (config-vrf-vrf2)# resilient-hash ecmp enable
   SLX (config-vrf-vrf2)#

4. Optional: If required, configure the max-path value.

   The default max-path value is 8. You can choose to use 8, 16, or 64 paths.

   

   SLX (config-vrf-vrf2)# resilient-hash ?
   Possible completions:
       ecmp        Resilient hash ECMP
       max-path    Resilient hash max path (8|16|64)
   
   SLX (config-vrf-vrf2)# resilient-hash max-path 8
   SLX (config-vrf-vrf2)#

5. Verify the configuration using the do show run vrf <vrf-name> command.
   

   SLX (config-vrf-vrf2)# do show run vrf vrf2
   vrf vrf2
       resilient-hash ecmp enable
       resilient-hash max-path 8 
       address-family ipv4 unicast
       !
   !
   

6. You can also verify the configuration using the show ip route system-summary command.
   

   SLX (config-vrf-vrf2)# show ip route system-summary
   System Route Count: 10 Max routes: 358400 (Route limit not exceeded)
   System Nexthop Count: 2 Max nexthops: 4000 (Nexthop limit not exceeded)
   One Path Nexthop Count: 1 Max One Path Nexthops: 48000
   RH Flowset Entries: 2816 Max 32768 (Flowset limit not exceeded)
   
   VRF-Name: default-vrf
       Route count: 0 Max routes: Not Set (Route limit not exceeded)
       0 connected, 0 static, 0 OSPF, 0 BGP, 0 ISIS, 0 unnumbered, 0 EVPN Host
       Resilient Hashing (Flowset Sz: 128, Max RH Paths: 8, RH Nexthops: 12)
       
   VRF-Name: mgmt-vrf
       Route count: 3 Max routes: Not Set (Route limit not exceeded)
       1 connected, 1 static, 0 OSPF, 0 BGP, 0 ISIS, 0 unnumbered, 0 EVPN Host
   
   VRF-Name: vrf2
       Route count: 7 Max routes: Not Set (Route limit not exceeded)
       2 connected, 2 static, 0 OSPF, 1 BGP, 0 ISIS, 0 unnumbered, 0 EVPN Host
       Resilient Hashing (Flowset Sz: 128, Max RH Paths: 16, RH Nexthops: 10)
   
   VRF-Name: vrf3
       Route count: 7 Max routes: Not Set (Route limit not exceeded)
       2 connected, 2 static, 0 OSPF, 1 BGP, 0 ISIS, 0 unnumbered, 0 EVPN Host
   
   SLX (config-vrf-vrf2)#