Brocade Communications Systems ICX 7250 series, Configuration Manual

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Changing the maximum load sharing paths for IPv6
By default, IPv6 ECMP load sharing allows traffic to be balanced across up to four equal paths.
To change the number of ECMP load sharing paths for IPv6, enter a command such as the following.
device(config)#ipv6 load-sharing 6
Syntax: [no] ipv6 load-sharing [ num ]
The num variable specifies the number of paths and can be from 2 through 8, depending on the device you are configuring. On the
Brocade ICX 7750, the value of the num variable can be from 2 through 32.
The configuration of the maximum number of IP load sharing paths to a value more than 8 is determined by the maximum number of
ECMP paths defined at the system level using the
system-max max-ecmp command. You cannot configure the maximum number of IP
load sharing paths higher than the value defined at the system level. Also, you cannot configure the maximum number of ECMP paths at
the system level to a value less than the configured IP load sharing value.
To define the maximum number of ECMP paths at the system level, enter a command such as the following.
device(config)# system-max max-ecmp 20
device(config)# write memory
device(config)# exit
device# reload
Syntax: [no] system-max max-ecmp [ num ]
The num variable specifies the maximum number of ECMP paths and the value range can be from 8 through 32. This command is
supported only on the Brocade ICX 7750.
You must save the configuration and reload the device for the maximum ECMP value change to take effect.
Displaying ECMP load-sharing information for IPv6
To display the status of ECMP load sharing for IPv6, enter the following command.
device#show ipv6
Global Settings
unicast-routing enabled, hop-limit 64
No IPv6 Domain Name Set
No IPv6 DNS Server Address set
Prefix-based IPv6 Load-sharing is Enabled, Number of load share paths: 4
Syntax: show ipv6
ICMP Router Discovery Protocol configuration
The ICMP Router Discovery Protocol (IRDP) is used by Brocade Layer 3 switches to advertise the IP addresses of its router interfaces to
directly attached hosts. IRDP is disabled by default. You can enable the feature on a global basis or on an individual port basis:
• If you enable the feature globally, all ports use the default values for the IRDP parameters.
• If you leave the feature disabled globally but enable it on individual ports, you also can configure the IRDP parameters on an
individual port basis.
NOTE
You can configure IRDP parameters only an individual port basis. To do so, IRDP must be disabled globally and enabled only
on individual ports. You cannot configure IRDP parameters if the feature is globally enabled.
Configuring IP parameters - Layer 3 switches
Brocade FastIron Layer 3 Routing Configuration Guide
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