IP route summary display
switch(config)# show ip route summary
IPv4 Route Table Summary
Protocol Active Routes
--------- -------------
Connected 1
Static 1
To configure a static IP route, see
on page 155.
IP forwarding cache
The IP forwarding cache provides a fast-path mechanism for forwarding IP packets. The cache contains entries
for IP destinations. When a routing switch has completed processing and addressing for a packet and is ready to
forward the packet, the device checks the IP forwarding cache for an entry to the packet's destination.
• If the cache contains an entry with the destination IP address, the device uses the information in the entry to
forward the packet out the ports listed in the entry. The destination IP address is the address of the packet's
final destination. The port numbers are the ports through which the destination can be reached.
• If the cache does not contain an entry, the software can create an entry in the forwarding cache.
Each entry in the IP forwarding cache has an age timer. The age interval depends on the number of entries in the
table. The age timer ranges from 12 seconds (full table) to 36 seconds (empty table.) Entries are aged only if they
are not being used by traffic. If you have an entry that is always being used in hardware, it will never age. If there
is no traffic, it will age in 12 to 36 seconds. The age timer is not configurable.
NOTE:
You cannot add static entries to the IP forwarding cache.
IP route exchange protocols
The switch supports the following IP route exchange protocols:
• Routing Information Protocol (RIP)
• Open Shortest Path First (OSPF).
• ICMP Router Discovery Protocol (IRDP)
• Dynamic Host Configuration Protocol (DHCP) Relay
These protocols provide routes to the IP route table. You can use one or more of these protocols, in any
combination. The protocols are disabled by default. For configuration information, see the following:
•
on page 169
•
on page 288
•
Dynamic Host Configuration Protocol
IP global parameters for routing switches
The following table lists the IP global parameters and the page where you can find more information about each
parameter.
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Aruba 3810 / 5400R Multicast and Routing Guide for ArubaOS-
Switch 16.08
