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Brocade Communications Systems FastIron X Series User Manual

Brocade Communications Systems FastIron X Series
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Syntax: [no] default-passive-interface
Modifying OSPFv3 interface defaults
OSPFv3 has interface parameters that you can congure. For simplicity, each of these parameters has a default value. No change to
these default values is required except as needed for specic network congurations.
You can modify the default values for the following OSPF interface parameters:
• cost: Indicates the overhead required to send a packet across an interface. You can modify the cost to dierentiate between
100 Mbps and 1000 Mbps (1 Gbps) links. The command syntax is ipv6 ospf cost number. The default cost is calculated by
dividing 100 million by the bandwidth. For 10 Mbps links, the cost is 10. The cost for both 100 Mbps and 1000 Mbps links is
1, because the speed of 1000 Mbps was not in use at the time the OSPF cost formula was devised.
• dead-interval: Indicates the number of seconds that a neighbor router waits for a hello packet from the device before declaring
the router down. The command syntax is ipv6 ospf dead-interval seconds. The value can be from 1 through 2147483647
seconds. The default is 40 seconds.
• hello-interval: Represents the length of time between the transmission of hello packets. The command syntax is ipv6 ospf
hello-interval seconds. The value can be from 1 through 65535 seconds. The default is 10 seconds.
• instance: Indicates the number of OSPFv3 instances running on an interface. The command syntax is ipv6 ospf instance
number. The value can be from 0 through 255. The default is 1.
• MTU-ignore: Allows you to disable a check that veries the same MTU is used on an interface shared by neighbors. The
command syntax is ipv6 ospf mtu-ignore. By default, the mismatch detection is enabled.
• network: Allows you to congure the OSPF network type. The command syntax is ipv6 ospf network [point-to-multipoint ].
The default setting of the parameter depends on the network type.
• passive: When you congure an OSPF interface to be passive, that interface does not send or receive OSPF route updates.
This option aects all IPv6 subnets congured on the interface. The command syntax is ipv6 ospf passive. By default, all OSPF
interfaces are active and thus can send and receive OSPF route information. Since a passive interface does not send or receive
route information, the interface is in eect a stub network.
• active: When you congure an OSPFv3 interface to be active, that interface sends or receives all the control packets and forms
the adjacency. By default, the ipv6 ospf active command is disabled. Whenever you congure the OSPFv3 interfaces to be
passive using the default-passive-interface command, all the OSPFv3 interfaces stop sending and receiving control packets.
To send and receive packets over specic interfaces, you can use the ipv6 ospf active command.
• priority: Allows you to modify the priority of an OSPF router. The priority is used when selecting the designated router (DR) and
backup designated routers (BDRs). The command syntax is ipv6 ospf priority number. The value can be from 0 through 255.
The default is 1. If you set the priority to 0, the router does not participate in DR and BDR election.
• retransmit-interval: The time between retransmissions of LSAs to adjacent routers for an interface. The command syntax is
ipv6 ospf retransmit-interval seconds . The value can be from 0 through 3600 seconds. The default is 5 seconds.
• Transmit-delay: The time it takes to transmit Link State Update packets on this interface. The command syntax is ipv6 ospf
transmit-delayseconds. The range is 0 through 3600 seconds. The default is 1 second.
Disabling or re-enabling event logging
OSPFv3 supports the logging of OSPFv3 events. The log-status change command controls the generation of all OSPFv3 logs. You can
disable or re-enable the logging of events related to OSPFv3, such as neighbor state changes and database
overow conditions. By
default, the Brocade device does not logs these events.
Conguring OSPFv3
FastIron Ethernet Switch Layer 3 Routing
53-1003627-04 311

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Brocade Communications Systems FastIron X Series Specifications

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BrandBrocade Communications Systems
ModelFastIron X Series
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LanguageEnglish

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