Redistributing Routes Into Ipv4 Is-Is; Changing The Default Redistribution Metric - Dell PowerConnect B-RX Configuration Manual

The level-1 | level-1-2 | level-2 parameter specifies the route types to which the aggregate route
applies. The default is level-2.

Redistributing routes into IPv4 IS-IS

To redistribute routes into IPv4 IS-IS, you can perform the following configuration tasks:
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The device can redistribute routes from the following route sources into IPv4 IS-IS:
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The device can also can redistribute Level-1 IPv4 IS-IS routes into Level-2 IPv4 IS-IS routes, and
Level-2 IPv4 IS-IS routes into Level-1 IPv4 IS-IS routes.
Route redistribution from other sources into IPv4 IS-IS is disabled by default. When you enable
redistribution, the device redistributes routes only into Level 2 by default. You can specify Level 1
only, Level 2 only, or Level 1 and Level 2 when you enable redistribution.
The device automatically redistributes Level-1 routes into Level-2 routes. Thus, you do not need to
enable this type of redistribution. You also can enable redistribution of Level-2 routes into Level-1
routes.
The device attempts to use the redistributed route's metric as the route's IPv4 IS-IS metric. For
example, if an OSPF route has an OSPF cost of 20, the router uses 20 as the route's IPv4 IS-IS
metric. The device uses the redistributed route's metric as the IPv4 IS-IS metric unless the route
does not a have a valid metric. In this case, the device assigns the default metric value to the route.
For information about the default metric, refer to
page 883 , which follows this section.

Changing the default redistribution metric

When IPv4 IS-IS redistributes a route from another route source (such as OSPF, BGP4+, or a static
IPv4 route) into IPv4 IS-IS, it uses the route's metric value as its metric when the metric is not
modified by a route map or metric parameter and the default redistribution metric is set to its
default value of 0. You can change the default metric to a value from 0 – 65535.
NOTE
The Brocade implementation of IS-IS does not support the optional metric types Delay, Expense, or
Error.
For example, to change the default metric to 20, enter the following command at the IPv4 IS-IS
unicast address family configuration level.
BigIron RX(config-isis-router-ipv4u)# default-metric 20
Syntax: [no] default-metric <value>
BigIron RX Series Configuration Guide
53-1002253-01
Change the default redistribution metric (optional).
Configure the redistribution of a particular route type into IPv4 IS-IS (mandatory).
BGP4+.
RIP.
OSPF.
Static IPv4 routes.
IPv4 routes learned from directly connected networks.
Configuring IPv4 address family route parameters
"Changing the default redistribution metric"
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