H3C Technologies H3C S5560 Series Switches - Manual (Page 220)

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Configuring IPv6 fast forwarding
Overview
Fast forwarding reduces route lookup time and improves packet forwarding efficiency by using a
high-speed cache and data-flow-based technology. It identifies a data flow by using the following fields:
• Source IPv6 address.
• Destination IPv6 address.
• Source port number.
• Destination port number.
• Protocol number.
• VPN instance name.
After the first packet of a flow is forwarded through the routing table, fast forwarding creates an entry for
the flow and uses the entry to forward subsequent packets of the flow.
Configuration procedure
To configure IPv6 fast forwarding:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable IPv6 fast-forwarding
load sharing. ipv6 fast-forwarding
load-sharing By default, IPv6 fast-forwarding load
sharing is enabled.
3. Set the aging time of IPv6 fast
forwarding entries.
ipv6 fast-forwarding
aging-time aging-time By default, the aging time of IPv6 fast
forwarding entries is 30 seconds.
Displaying and maintaining IPv6 fast forwarding
Execute display commands in any view and reset commands in user view.
Task Command
Display IPv6 fast forwarding table information.
display ipv6 fast-forwarding cache [ ipv6-address ]
[ slot slot-number ]
Display the aging time of the IPv6 fast forwarding
entry.
display ipv6 fast-forwarding aging-time
Clear IPv6 fast forwarding table information. reset ipv6 fast-forwarding cache [ slot slot-number ]