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- Table of Contents
-
- 05-Layer 3 - IP Services Configuration Guide
- 00-Preface
- 01-ARP configuration
- 02-IP addressing configuration
- 03-DHCP configuration
- 04-DNS configuration
- 05-IP forwarding basics configuration
- 06-Fast forwarding configuration
- 07-Adjacency table configuration
- 08-IRDP configuration
- 09-IP performance optimization configuration
- 10-UDP Helper configuration
- 11-IPv6 basics configuration
- 12-DHCPv6 configuration
- 13-IPv6 fast forwarding configuration
- 14-Tunneling configuration
- 15-GRE configuration
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 13-IPv6 fast forwarding configuration | 32.23 KB |
Configuring IPv6 fast forwarding
Configuring the aging time for IPv6 fast forwarding entries
Configuring IPv6 fast forwarding load sharing
Displaying and maintaining IPv6 fast forwarding
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.
After a flow's first packet is forwarded through the routing table, fast forwarding creates an entry and uses the entry to forward subsequent packets of the flow.
Configuring the aging time for IPv6 fast forwarding entries
The IPv6 fast forwarding table uses an aging timer for each forwarding entry. If an entry is not updated before the timer expires, the device deletes the entry. If an entry has a hit within the aging time, the aging timer restarts.
To configure the aging time for IPv6 fast forwarding entries:
|
Step |
Command |
Remarks |
|
1. Enter system view. |
system-view |
N/A |
|
2. Set the aging time for IPv6 fast forwarding entries. |
ipv6 fast-forwarding aging-time aging-time |
By default, the aging time is 30 seconds. |
Configuring IPv6 fast forwarding load sharing
IPv6 fast forwarding load sharing enables the device to load share packets of the same flow. This feature identifies a data flow by using the five-tuple (source IP, source port, destination IP, destination port, and protocol).
If IPv6 fast forwarding load sharing is disabled, the device identifies a data flow by the five-tuple and the input interface. No load sharing is implemented.
To configure IPv6 fast forwarding load sharing:
|
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. |
Displaying and maintaining IPv6 fast forwarding
Execute display commands in any view and reset commands in user view.
|
Task |
Command |
|
Display IPv6 fast forwarding entries. |
display ipv6 fast-forwarding cache [ ipv6-address ] [ slot slot-number ] |
|
Display the aging time of the IPv6 fast forwarding entries. |
display ipv6 fast-forwarding aging-time |
|
Clear IPv6 fast forwarding table information. |
reset ipv6 fast-forwarding cache [ slot slot-number ] |
