Bug ID 564619: IPv6 performance might drop when the IPv6 prefix length is set to a value other than 128

Last Modified: Apr 10, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP PEM(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4

Opened: Dec 23, 2015
Severity: 3-Major

Symptoms

When the IPv6 prefix length is set to a value other than default value 128, and vlan cmp hash is set to either src-ip or dst-ip, the IP prefix DAG will be activated for IPv6 traffic instead of SPDAG. The IP prefix DAG solely relies on SW DAG redirects, which will impact IPv6 performance.

Impact

IPv6 performance drop.

Conditions

IPv6 prefix length is set to a value other than default value, 128. The vlan cmp hash is set to either src-ip or dst-ip.

Workaround

Set IPv6 prefix length to 128.

Fix Information

None

Behavior Change