13-20 CHAPTER 13: ADMINISTERING OSPF ROUTING
Displaying External
Network LSAs
To display network link state external information:
1 From the top level of the Administration Console, enter:
ip ospf linkStateData external
2 Enter the ID of the OSPF area.
3 Enter the area mask.
4 Enter the LSID.
5 Enter the LSID mask.
This example shows link state database external information:
Table 13-8 shows the attributes for the link state database external
display.
Top-Level Menu
system
ethernet
fddi
atm
bridge
➧ip
ipx
appletalk
snmp
analyzer
script
logout
interface
route
arp
multicast
udphelper
routing
icmpRouterDiscovery
➧ospf
rip
ping
statistics
areas
defaultRouteMetric
interface
➧linkStateData
neighbors
routerID
partition
stubDefaultMetric
virtualLinks
statistics
databaseSummary
router
network
summary
➧external
OSPF external links
LSID Router ID LS Seq LS Age Network Mask
9.0.0.0 158.101.142.1* 80000004 295 255.0.0.0
Fwd Address Metric Type RouteTag
158.101.142.1 4 1 0
LSID Router ID LS Seq LS Age Network Mask
89.0.0.0 158.101.142.1* 80000004 295 255.0.0.0
Fwd Address Metric Type RouteTag
158.101.142.1 4 1 0
Table 13-8 Field Attributes for the Link State Database External Display
Field Description
LSID IP network number.
Router ID Originating router ID.
LS Seq Hexadecimal sequence number of the LSA (used to detect older
LSAs).
LS Age Time in seconds since LSA originated.
Network Mask IP address mask for the advertised destination.
Fwd Address Forwarding address for data traffic to the advertised destination.
Metric Cost to reach advertised destination.
Type ■ Type 1 = normal link state metric.
■ Type 2 = metric is larger than any local link state path.
RouteTag Not used by OSPF. These 32 bits may be used to communicate
other information between boundary routers. Application
systems usually define their own route tags.
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