Cradlepoint IBR1100 User Manual page 63

User Manual / IBR1100/IBR1150
• Router ID: OSPF routers are identified by a
unique ID which must be a dotted quad (like an IP
address). This ID MUST be unique within the entire
OSPF domain - errors will happen if multiple OSPF
speakers are configured with the same router-ID.
• ABR Type: The OSPF standard does not allow
an ABR to consider routes through connected
non-backbone areas. Relaxed (default) relaxes
this restriction and will consider routes through
non-backbone areas if the backbone area is down.
Standard respects the OSPF standard regardless
if the backbone area is down. Shortcut will always
route through the best path even if it does not go
through the backbone area. When this is set, shortcut can be enabled/disabled on a per area basis.
• Flags: RFC 1583 Compatibility uses the predecessor standard RFC 1583 path preference algorithm. This
typically is NOT set. Opaque capability enables forwarding Opaque LSA extensions described in RFC 5250.
• Max Metric: Set this router to broadcast max (infinite-distance) metric. Essentially broadcasting that this
router is unreachable.
• Passive Interface Default: By default, any interface that controls a defined OSPF network will send link-
state advertisements. Set Passive Interface Default to allow only interfaces configured under Interfaces to
send link-state advertisements.
• Refresh Timer: Sets the OSPF LSA refresh timer. Default is 10 seconds.
• Reference Bandwith (Mb/s): Sets the reference bandwidth for cost calculations. Link cost will
automatically scale in reference to this bandwidth unless explicitly overridden. The default is 100 Mb/s
equal to cost of 1. Note: this setting MUST be consistent across routers in the OSPF domain.
• SPF Timers: Sets the shortest path first algorithm adaptive timers in milliseconds. Modifying these
values allows you to manage CPU usage when calculating SPF. Delay sets the initial delay. SPF calculations
will always be performed at least this many milliseconds apart. Consecutive SPF calculations will always
be separated by at least the Hold Time up to the Max Hold Time increasing by Max Hold Time for each
consecutive calculation.
Interfaces
• Device: Select device interface.
• Options: Set interface options. Passive means no
Hellos will be transmitted out this interface. MTU
Ignore disables MTU mismatch detection.
• Network Type: Set the network type for this
interface.
• Authentication: Set OSPF interface authentication.
Key sets the OSPF authentication key to a
simple password. After setting authentication
key, all OSPF packets are authenticated. The
authentication key has a maximum length of
eight characters if using plain text authentication
and sixteen characters if using message-digest
authentication. Key ID enables message-digest authentication. Leave this blank to enable plain text
authentication. The Key ID identifies the secret key used to create the message digest. This ID is part of
the protocol and must be consistent across routers on a link.
• Cost: OSPF metric for this interface.
• Transmit Delay: Link state transmit delay.
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