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Chapter 37 Commands for SAVI
37.1 Commands for SAVI
37.1.1 ipv6 cps prefix
Command: ipv6 cps prefix <ipv6-address> vlan <vid>
no ipv6 cps prefix<ipv6-address>
Function: Configure IPv6 address prefix of the link manually, no command deletes IPv6
address prefix.
Parameter: ipv6-address: the address prefix of link, like 2001::/64;
vid: vlan ID of the current link.
Command Mode: Global Mode.
Default: None.
Usage Guide: Users should configure local address prefix: fe80::/64 of the link before
enable the function of matching address prefix of the link, it accepts the packets of which
source addresses are the local addresses of the link.
Example: Configure the address prefix of the link to 2001::/64.
Switch(config)#ipv6 cps prefix 2001::/64
37.1.2 ipv6 cps prefix check enable
Command: ipv6 cps prefix check enable
no ipv6 cps prefix check enable
Function: Enable SAVI address prefix check function, no command will disable this
function.
Parameter: None.
Command Mode: Global Mode.
Default: Disable SAVI address prefix check function.
Usage Guide: After enable the prefix check function, if the IPv6 address prefix of the
packets does not accord with the link prefix, then do not establish the corresponding IPv6
address binding. If users enable the matched address prefix of the link, configure the local
address prefix of fe80::/64 first to accept the packets with the source address as local link
address. Disable address prefix check function by default.
Example: Enable SAVI address prefix check function.
Switch(config)#ipv6 cps prefix check enable