Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 - Manual (Page 264)

246 Brocade ICX 6650 Layer 3 Routing Configuration Guide
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OSPF V3 configuration
Brocade(config-ospf6-router)#external-lsdb-limit 3000
Syntax: ipv6 ospf area number | ipv4-address
The entries parameter can be a numerical value from 500–8000 seconds.
To reset the maximum number of entries to its system default, enter the no form of this command.
Modifying OSPF V3 interface defaults
OSPF V3 has interface parameters that you can configure. For simplicity, each of these parameters
has a default value. No change to these default values is required except as needed for specific
network configurations.
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 differentiate 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 current router before declaring the router down. The command syntax is ipv6 ospf
dead-interval seconds. The value can be from 1–2147483647 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 – 65535
seconds. The default is 10 seconds.
• Instance: Indicates the number of OSPF V3 instances running on an interface. The command
syntax is ipv6 ospf instance number. The value can be from 0–255. The default is 1.
• MTU-ignore: Allows you to disable a check that verifies 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 configure 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 configure an OSPF interface to be passive, that interface does not send or
receive OSPF route updates. This option affects all IPv6 subnets configured 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 effect a stub network.
• 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 0–255. 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
0–3600 seconds. The default is 5 seconds.