Belden Hirschmann EAGLE40-03 Referenzhandbuch Seite 519

2 0 Ope n Shor t e st Pat h First (OSPF)
2 0 .1 ip
Set IP parameters.
2 0 .1 .1 ip ospf a re a
Administer the OSPF areas. An area is a sub-division of an OSPF autonomous system. You identify an area by
an area-id. OSPF networks, routers, and links that have the same area-id form a logical set.
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Mode: Global Config Mode
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Privilege Level: Operator
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Format: ip ospf area <P-1> range add <P-2> <P-3> <P-4> modify <P-5> <P-6> <P-7> <P-
8> delete <P-9> <P-10> <P-11> add delete stub add <P-12> modify <P-13> summarylsa
<P-14> default-cost <P-15> delete <P-16> virtual-link add <P-17> delete <P-18>
modify <P-19> authentication type <P-20> key <P-21> key-id <P-22> hello-interval
<P-23> dead-interval <P-24> transmit-delay <P-25> retransmit-interval <P-26> nssa
add <P-27> delete <P-28> modify translator role <P-29> stability-interval <P-30>
summary no-redistribute default-info originate [metric <P-31>] [metric-type <P-
32>]
range: Configure the range for the area. You summarize the networks within this range into a single routing
domain.
add: Create an area.
modify: Modify the parameters of an existing area.
delete: Delete a specific area.
add: Create a new area.
delete: Delete an existing area.
stub: Configure the preferences for a stub area. You shield stub areas from external route advertisements, but
the area receives advertisements from networks that belong to other areas of the same autonomous system.
add: Create a stub area. The command also allows you to convert an existing area to a stub area.
modify: Modify the stub area parameters.
summarylsa: Configure the summary LSA mode for a stub area. When enabled, the router both summarizes and
propagates summary LSAs.
default-cost: Set the default cost for the stub area.
delete: Remove a stub area. After removal, the area receives external route advertisements.
virtual-link: Configure a virtual link. You use the virtual link to connect the router to the backbone area
(0.0.0.0) through a non-backbone area or to connect two parts of a partitioned backbone area (0.0.0.0) through a
non-backbone area.
add: Add a virtual neighbor.
delete: Delete a virtual neighbor.
modify: Modify the parameters of a virtual neighbor.
authentication: Configure the authentication type. The device authenticates the OSPF protocol exchanges in
the OSPF packet header which includes an authentication type field.
type: Configure the authentication type. Authentication types are 0 for null authentication, 1 for simple password
authentication, and 2 for cryptographic authentication.
key: Configure the authentication key.
key-id: Configure the authentication key-id for md5 authentication. This field identifies the algorithm and secret
key used to create the message digest appended to the OSPF packet.
hello-interval: Configure the OSPF hello-interval for the virtual link, in seconds. The hello timer controls the
time interval between sending two consecutive hello packets. Set this value to the same hello-interval value of the
virtual neighbors.
dead-interval: Configure the OSPF dead-interval for the virtual link, in seconds. If the timer expires without
the router receiving hello packets from a virtual neighbor, the router declares the neighbor router as down. Set the
timer to at least four times the value of the hello-interval.
transmit-delay: Configure the OSPF transmit-delay for the virtual link, in seconds. Transmit delay is the time
that you estimate it takes to transmit a link-state update packet over the virtual link.
retransmit-interval: Configure the OSPF retransmit-interval for the virtual link, in seconds. The retransmit
interval is the time between two consecutive link-state advertisement transmissions. Link-state advertisements
contain such information as database descriptions and link-state request packets for adjacencies belonging to
virtual link.
nssa: Configure a NSSA(Not-So-Stubby-Area).
add: Add a NSSA.
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RM CLI EAGLE40-03
Release 04.1 03/2021