Brocade Communications Systems FastIron X Series User Manual

Some interface types are not aected by the reference bandwidth and always have the same cost regardless of the reference bandwidth
in use:
• The cost of a loopback interface is always 1.
• The cost of a virtual link is calculated using the Shortest Path First (SPF) algorithm and is not aected by the auto-cost feature.
• The bandwidth for tunnel interfaces is 9 Kbps and is subject to the auto-cost feature.
For example, to change the reference bandwidth to 500, enter the following command.
device(config-ospf6-router)# auto-cost reference-bandwidth 500
The reference bandwidth
specied in this example results in the following costs:
• 10 Mbps port cost = 500/10 = 50
• 100 Mbps port cost = 500/100 = 5
• 1000 Mbps port cost = 500/1000 = 0.5, which is rounded up to 1
• 155 Mbps port cost = 500/155 = 3.23, which is rounded up to 4
• 622 Mbps port cost = 500/622 = 0.80, which is rounded up to 1
• 2488 Mbps port cost = 500/2488 = 0.20, which is rounded up to 1
The costs for 10 Mbps, 100 Mbps, and 155 Mbps ports change as a result of the changed reference bandwidth. Costs for higher-speed
interfaces remain the same.
Syntax: [no] auto-cost reference-bandwidth number
The number parameter
species the reference bandwidth in the range from 1 through 4294967. The default is 100.
To restore the reference bandwidth to its default value and thus restore the default costs of the interfaces to their default values, enter the
no form of this command.
Redistributing routes into OSPFv3
In addition to specifying which routes are redistributed into OSPFv3, you can
congure the following aspects related to route
redistribution:
• Default metric.
• Metric type.
• Advertisement of an external aggregate route.
Conguring route redistribution into OSPFv3
You can congure the device to redistribute routes from the following sources into OSPFv3:
• IPv6 static routes
• Directly connected IPv6 networks
• BGP4+
• RIPng
You can redistribute routes in the following ways:
• By route types, for example, the Brocade device redistributes all IPv6 static and RIPng routes.
• By using a route map to lter which routes to redistribute, for example, the device redistributes specied IPv6 static and RIPng
routes only.
Conguring OSPFv3
FastIron Ethernet Switch Layer 3 Routing
53-1003627-04 301

Brocade Communications Systems FastIron X Series Specifications

General

Brand	Brocade Communications Systems
Model	FastIron X Series
Category	Switch
Language	English