Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 461)

Multi-Service IronWare Routing Configuration Guide 433
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DHCP relay agent for IPv6
Enabling DHCPv6 Relay Agent Prefix Delegation notification on an interface
To set the number of delegated prefixes that can be learned at the interface level, use the ipv6
dhcp-relay maximum-delegated-prefixes command. This command limits the maximum number of
prefixes that can be learnt on the interface.
Brocade(config-if-eth2/1)# ipv6 dhcp-relay maximum-delegated-prefixes 4000
Syntax: [no] ipv6 dhcp-relay maximum-delegated-prefixes value
The value parameter is used to limit the maximum number of prefixes that can be delegated. The
range is from 0 to 20000. The default value is 20000.
Use the no ipv6 dhcp-relay maximum-delegated-prefixes command to set the parameter to the
default value of the specified platform. See
Table 72 for more information.
Table 72 lists the default and maximum prefix values for different platforms.
Assigning the administrative distance to DHCPv6 static routes
To assign the administrative distance to DHCPv6 static routes installed in IPv6 route table for the
delegated prefixes on the interface, use the ipv6 dhcp-relay distance command at the interface
level. The administrative distance value has to be set so that it does not replace the same IPv6
static route configured by the user.
Brocade(config-if-eth2/1)# ipv6 dhcp-relay distance 25
Syntax: [no] ipv6 dhcp-relay distance value
The value parameter is used to assign the administrative distance to DHCPv6 static routes on the
interface. The range is from 1 to 255. The default value is 10. If the value is set to 255, then the
delegated prefixes for this interface will not be installed in the IPv6 static route table.
Use the no ipv6 dhcp-relay distance command to set the parameter to a default value of 10.
TABLE 72 Default and maximum values for different platforms
Platform Default
Maximum
System Prefixes
supported Maximum System
Prefixes
supported Default Maximum
Interface Prefixes
supported Maximum interface
Prefixes supported Default Maximum IPv6
Route Maximum IPv6 routes
that can be supported
Brocade
NetIron
CES 1000 8000 250 2000 1024 8192
Brocade
NetIron
CER 8000 100000 2000 20000 8192 131072
Brocade
MLX and
MLXe
series 32000 100000 8000 20000 32768 114688
Brocade
NetIron
XMR 60000 100000 20000 20000 65536 245760