Number Of Equal-Cost Routing Paths - Cisco Catalyst 9500 series Configuration Manual
Cisco ios xe everest 16.6.x
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- Manual (360 pages) ,
- Hardware installation manual (122 pages) ,
- Troubleshooting (4 pages)
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Number of Equal-Cost Routing Paths
Step 9
Step 10
Step 11
Step 12
Number of Equal-Cost Routing Paths
Information About Equal-Cost Routing Paths
When a router has two or more routes to the same network with the same metrics, these routes can be thought
of as having an equal cost. The term parallel path is another way to see occurrences of equal-cost routes in a
routing table. If a router has two or more equal-cost paths to a network, it can use them concurrently. Parallel
paths provide redundancy in case of a circuit failure and also enable a router to load balance packets over the
available paths for more efficient use of available bandwidth. Equal-cost routes are supported across switches
in a stack.
Even though the router automatically learns about and configures equal-cost routes, you can control the
maximum number of parallel paths supported by an IP routing protocol in its routing table. Although the
switch software allows a maximum of 32 equal-cost routes, the switch hardware will never use more than 16
paths per route.
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
182
Command or Action
show cef linecard [slot-number] [detail]
Example:
Device# show cef linecard 5 detail
show cef interface [interface-id]
Example:
Device# show cef interface
gigabitethernet 1/0/1
show adjacency
Example:
Device# show adjacency
copy running-config startup-config
Example:
Device# copy running-config
startup-config
Configuring IP Unicast Routing
Purpose
(Optional) Displays CEF-related interface
information on a switch by stack member for all
switches in the stack or for the specified switch.
(Optional) For slot-number, enter the stack
member switch number.
Displays detailed CEF information for all
interfaces or the specified interface.
Displays CEF adjacency table information.
(Optional) Saves your entries in the configuration
file.
- Quick Links:
- Configuring Vrfs
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