Motorola BSR 2000, Configuration And Management Manual

Page: 510 / 650

BSR 2000 Configuration and Management Guide Release 1.0
11-20 MGBI 526360-001-00 Rev. B
WORD
is the encrypted MD5 password (1-16 characters).
Examples
The following example sets the cost of sending a packet over an interface to 30:
interface ethernet 0/0
ip ospf cost 30
The following example sets the time interval between transmissions of an LSA to 20
seconds on an interface:
interface ethernet 0/0
ip ospf restransmit-interval 20
The following example sets the time it takes to transmit a link state update to
10seconds on an interface:
interface ethernet 0/0
ip ospf transmit-delay 10
The following example sets the router priority value to 10 on an interface:
interface ethernet 0/0
ip ospf priority 10
The following example sets the interval between hello packets to 15 seconds on an
interface:
interface ethernet 0/0
ip ospf hello-interval 30
Blocking OSPF LSA Flooding
The OSPF LSA age indicates whether the LSA is valid. The LSA is discarded when it
reaches the maximum age of one hour. During the aging process, the originating
router sends a refresh packet every 30 minutes to keep the LSA from expiring,
regardless of network topology changes. The router tracks and refreshes the LSAs it
generates; it tracks and ages the LSAs it receives from other routers. Each LSA is
refreshed when it is 30 minutes old, independent of other LSAs.
By default, OSPF floods new LSAs over all interfaces in the same area, except the
interface on which the LSA arrives. Some redundancy is desirable, because it ensures
robust flooding. However, too much redundancy can waste bandwidth and might
destabilize the network due to excessive link and CPU usage in certain topologies.
Use the ip ospf database-filter all out command in Interface Configuration mode to
block the flooding of OSPF LSAs on broadcast, non-broadcast, and point-to-point
networks: