Administrator Guide

Version Description
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.7(0.0) Included the weighted parameter to support weighted ECMP feature.
9.4.(0.0) Added support for VRF.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
9.2.(0.0) Added support for tunnel interface type.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.5.1.0 Added support for 4-port 40G line cards on the E-Series.
8.3.7.0 Introduced on the S4810.
8.2.1.0 Added support for 4094 VLANs on the E-Series (the prior limit was 2094).
8.1.1.0 Introduced on the E-Series.
7.9.1.0 Introduced VRF on the E-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre-6.1.1.0 Introduced on the E-Series.
Usage Information Using the following example of a static route: ip route 33.33.33.0 /24 tengigabitethernet 1/1 172.31.5.43
• The software installs a next hop that is not on the directly connected subnet but which recursively resolves to
a next hop on the interface’s configured subnet. In the example, if tengigabitethernet 1/1 has an ip address on
subnet 2.2.2.0 and if 172.31.5.43 recursively resolves to 2.2.2.0, Dell EMC Networking OS installs the static
route.
• When the interface goes down, Dell EMC Networking OS withdraws the route.
• When the interface comes up, Dell EMC Networking OS re-installs the route.
• When recursive resolution is “broken,” Dell EMC Networking OS withdraws the route.
• When recursive resolution is satisfied, Dell EMC Networking OS re-installs the route.
You can specify a weight for an IPv4 or IPv6 static route. If the weight value of a path is 0, then that path is not
used for forwarding when weighted ECMP is in effect. Also, if a path corresponding to a static route (destination)
has a non-zero weight assigned to it and other paths do not have any weight configured, then regular ECMP is
used for forwarding.
You can specify the weight value only to destination address and not on the egress port.
A route is considered for weighted ECMP calculations only if each paths corresponding to that route is configured
with a weight.
You cannot use the VRF attribute of this command to configure routes in a management VRF. When a specific
VRF is deleted, all the configured static routes corresponding to that VRF are automatically removed.
Example
DellEMC(conf)# ip route 1.1.1.0/24 4.4.4.2 weight 100
DellEMC(conf)# ip route 1.1.1.0/24 6.6.6.2 weight 200
DellEMC(conf)# do show running-config | grep route ip route 1.1.1.0/24
4.4.4.2 weight 100 ip route 1.1.1.0/24 6.6.6.2 weight 200
DellEMC(conf)# ip route vrf test 1.1.1.0/24 4.4.4.2 weight 100
DellEMC(conf)# ip route vrf test 1.1.1.0/24 6.6.6.2 weight 200
DellEMC(conf)#
DellEMC(conf)# do show running-config | grep route ip route vrf test
1.1.1.0/24 4.4.4.2 weight 100 ip route vrf test 1.1.1.0/24 6.6.6.2 weight
200
Related
Commands
• show ip route — view the switch routing table.
IPv4 Routing 715