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15-6
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Chapter 15 Managing the Unicast RIB and FIB
Managing the Unicast RIB and FIB
To configure the unicast FIB load-sharing algorithm, use the following command in global configuration
mode:
To display the unicast FIB load-sharing algorithm, use the following command in any mode:
To display the route that the unicast RIB and FIB use for a particular source address and destination
address, use the following command in any mode:
This example shows the route selected for a source/destination pair:
switch# show routing hash 10.0.0.5 30.0.0.2
Load-share parameters used for software forwarding:
load-share mode: address source-destination port source-destination
Universal-id seed: 0xe05e2e85
Hash for VRF "default"
Hashing to path *20.0.0.2 (hash: 0x0e), for route:
Configuring Per-Packet Load Sharing
You can use per-packet load sharing to evenly distribute data traffic in an IP network over multiple
equal-cost connections. Per-packet load sharing allows the router to send successive data packets over
paths on a packet-by-packet basis rather than on a per-flow basis.
Command Purpose
ip load-sharing address {destination
port destination | source-destination
[port source-destination]}
[universal-id
seed
]
Example:
switch(config)# ip load-sharing
address source-destination
Configures the unicast FIB load-sharing algorithm for
data traffic. The universal-id range is from 1 to
4294967295.
Command Purpose
show ip load-sharing
Example:
switch(config)# show ip load-sharing
address source-destination
Displays the unicast FIB load-sharing algorithm for data
traffic.
Command Purpose
show routing hash
source-addr
dest-addr
[
source-port dest-port
]
[vrf
vrf-name
]
Example:
switch# show routing hash 192.0.2.1
10.0.0.1
Displays the route that the unicast RIB FIB use for a
source and destination address pair. The source address
and destination address format is x.x.x.x. The source port
and destination port range is from 1 to 65535. The VRF
name can be any case-sensitive alphanumeric string up to
64 characters.
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