Administrator Guide

Command History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.7.0 Introduced on the S4810.
8.4.2.1 Introduced on the S-Series.
8.2.1.0 Introduced on the E-Series ExaScale.
7.8.1.0 Introduced on the C-Series.
7.4.1.0 Introduced on the E-Series TeraScale.
Usage Information Because this command is enabled by default, it does not appear in the running configuration. When you disable
unicast routing, the no ipv6 unicast-routing command is included in the running configuration. Whenever
unicast routing is disabled or re-enabled, the system generates a syslog message indicating the action.
Disabling unicast routing on an E-Series chassis causes the following behavior:
• static and protocol learned routes are removed from RTM and from the CAM; packet forwarding to these
routes is terminated
• connected routes and resolved neighbors remain in the CAM and new IPv6 neighbors are still discoverable
• additional protocol adjacencies (OSPFv3 and BGP4) are brought down and no new adjacencies are formed
• the IPv6 address family configuration (under router bgp) is deleted
• IPv6 Multicast traffic continues to flow unhindered
show cam-ipv6 extended-prefix
Display the currently configured and next-boot settings for extended IPv6 prefixes (/65 to /128) in LPM CAM.
C9000 Series
Syntax
show cam-ipv6 extended-prefix
Defaults None
Command Modes
EXEC
EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.5(0.1) Introduced on the Z9500.
9.3(0.1) Introduced on the S6000.
Usage Information You can use this command to view the maximum number of extended IPv6 prefix entries supported in LPM CAM.
The output displays the current value and the new value applicable after a switch reload.
936 IPv6 Basics