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Routing Commands
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ProSafe M4100 and M7100 Managed Switches
To administratively control the traffic destined to a particular network and prevent it from
being forwarded through the router, you can configure a static reject route on the router. Such
traffic would be discarded and the ICMP destination unreachable message is sent back to the
source. This is typically used for preventing routing loops. The reject route added in the RTO
is of the type OSPF Inter-Area. Reject routes (routes of REJECT type installed by any
protocol) are not redistributed by OSPF/RIP. Reject routes are supported in both OSPFv2
and OSPFv3.
The following shows example CLI display output for the command.
(Switch) #show ip route
Route Codes: R - RIP Derived, O - OSPF Derived, C - Connected, S - Static
B - BGP Derived, IA - OSPF Inter Area
E1 - OSPF External Type 1, E2 - OSPF External Type 2
N1 - OSPF NSSA External Type 1, N2 - OSPF NSSA External Type 2
C 1.1.1.0/24 [0/1] directly connected, 0/11
C 2.2.2.0/24 [0/1] directly connected, 0/1
C 5.5.5.0/24 [0/1] directly connected, 0/5
S 7.0.0.0/8 [1/0] directly connected, Null0
OIA 10.10.10.0/24 [110/6] via 5.5.5.2, 00h:00m:01s, 0/5
C 11.11.11.0/24 [0/1] directly connected, 0/11
S 12.0.0.0/8 [5/0] directly connected, Null0
S 23.0.0.0/8 [3/0] directly connected, Null0
show ip route ecmp-groups
This command reports all current ECMP groups in the IPv4 routing table. An ECMP group is
a set of two or more next hops used in one or more routes. The groups are numbered
arbitrarily from 1 to n. The output indicates the number of next hops in the group and the
number of routes that use the set of next hops. The output lists the IPv4 address and
outgoing interface of each next hop in each group.
Format show ip route ecmp-groups
Mode
Example
(switch) #show ip route ecmp-groups
via Next-Hop
The outgoing router IP address to use when forwarding traffic to the next router (if any)
in the path toward the destination.
Route-Timestamp
The last updated time for dynamic routes. The format of Route-Timestamp will be
• Days:Hours:Minutes if days > = 1
• Hours:Minutes:Seconds if days < 1
Interface
The outgoing router interface to use when forwarding traffic to the next destination. For
reject routes, the next hop interface would be Null0 interface.
Privileged EXEC
Term Definition