Cyclades-PR1000
Chapter 9 - Routing Protocols 70
OSPF Configuration on the Interface
STEP TWO
Contrary to most other protocols in CyROS, OSPF must first be configured on each interface, then configured in
the CONFIG =>IP =>OSPF menu. Enter into each interface and set the parameters listed in the table.
OSPF Menu CONFIG =>INTERFACE =>
<LINK>
=>ROUTING PROTOCOL =>OSPF
Parameter Description
OSPF on This
Interface Activates OSPF.
Enable Inactive
is used to temporarily disabl e the OSPF protocol
without erasing the parameters set b elow. This is useful when OSPF is first configured,
as the general parameters must b e set afterwards in CONFIG=>IP =>OSP F and OSPF
cannot function without them.
Parameters that apply only w hen
OSPF on This Interface
is
Disabled
.
Advertise This Non-
OSPF Interface Causes the router to include this interface in its advertisements thr ough other interfaces
(as an external route).
External Metric Defin es the metric that will be advertised by OSPF.
External Metric Type For
Type 1
, the total metric of this rout e is composed of the internal me tric (inside the
autonomous system) and the e xternal metric (provided in the pr evious parameter). For
Type 2
, the total metric of this route is the value provided in the previo us parameter.
Parameters that apply only w hen
OSPF on This Interface
is
Enable
or
Enable Inactive
.
Area ID Identifies the area to which the i nterface belongs. Areas are cre ated here, then later
defined in CONFIG=>IP=>OSPF =>ARE A. Has the format of an IP add ress, but is not
linked to any IP address in the system. Small OSPF networks will typically have onl y
one area (the backbone area represented by 0.0.0. 0).
Router Priority Priority used by OSPF in multica st networks to elect the designa ted router. A priority of
1 will make this router the most likely to be chosen. A priorit y of 2 will make it second
most likely. Set it to 0 (zero) if this router should never be the desi gnated router.
Transit Delay in
Seconds Estimated transit time in seconds to rout e a packet through this interface. Us e the
preset value (1) or increase the number for slow links