Dell EMC SmartFabric OS10 User Guide Release 10.5.0

You can configure a manual or static route for open shortest path first (OSPF).

• Configure a static route in CONFIGURATION mode.

  ip route ip-prefix/mask {next-hop | interface interface [route-preference]}

  • ip-prefix—IPv4 address in dotted decimal in A.B.C.D format.
  • mask—Mask in slash prefix-length format (/X).
  • next-hop—Next-hop IP address in dotted decimal in A.B.C.D format.
  • interface—Interface type with the node/slot/portinformation
  • route-preference—(Optional) Route-preference range, from 1 to 255.

Configure static routes

OS10(config)# ip route 200.200.200.0/24 10.1.1.2

View configured static routes

OS10# show ip route static
Codes: C - connected
       S - static
       B - BGP, IN - internal BGP, EX - external BGP
       O - OSPF,IA - OSPF inter area, N1 - OSPF NSSA external type 1,
       N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
       E2 - OSPF external type 2, > - non-active route
Gateway of last resort is not set
Destination        Gateway                   Dist/Metric Last Change
------------------------------------------------------------------
S  200.200.200.0/24 via 10.1.1.2 ethernet1/1/1  0/0      00:00:03

OS10 installs a static route if the next hop is on a directly connected subnet. A next-hop that is not on the directly connected subnet which recursively resolves to a next-hop on the interface's configured subnet also automatically configures. For example, if interface ethernet 1/1/5 has IP address on subnet 100.0.0.0/8, and if 10.1.1.0/24 recursively resolves to 100.1.1.1, the system installs the static route:

• When the interface goes down, OS10 withdraws the route.
• When the interface comes up, OS10 reinstalls the route.
• When the recursive resolution is broken, OS10 withdraws the route.
• When the recursive resolution is satisfied, OS10 reinstalls the route.