Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 774)

746 Multi-Service IronWare Routing Configuration Guide
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IPv6 IS-IS Multi-Topology
The initial-hold-time variable specifies the initial time gap between an SPF event and the first
running of SPF. The range is from 0 through 120000 milliseconds. The default value is 5000
milliseconds.
The exponential-hold-time variable specifies the interval between two SPF calculations. The range
is from 0 through 120000 milliseconds. The default value is 5000 milliseconds.
The [no] form of the command resets all parameters to their default values.
Changing the metric added value
When the device calculates a route, the device adds a metric (cost) to the route. Each IS-IS
interface has a separate metric value. In IPv6 IS-IS MT, different metrics are configured on an
interface for IPv4 and IPv6. When the metric value is configured for an interface, it rebuilds the
route LSP and triggers IPv6 IS-IS MT SPF calculation.
To configure the metric value for an interface under IPv6 IS-IS MT, enter the following command.
Brocade(config-if-e10000-1/4)# isis ipv6 metric 15
Syntax: [no] isis ipv6 metric value [level-1 | level-2]
The value variable specifies the metric. The metric range depends on the metric style. You can
specify the range from 1 through 63 for the narrow metric style and from 1 through 16777215 for
the wide metric style. The default value for both styles is 10.
The level-1 option specifies that the level 1 router routes traffic only within an area. To forward
traffic to another area, the level 1 router sends the traffic to its nearest level-2 router.
The level-2 option specifies that the level 2 router routes traffic between the areas within a domain.
The level-1 | level-2 options apply the change to only the level you specify. If you do not use one of
the options, the change applies to both the levels.
The no form of the command resets all parameters to their default values.