Cisco Catalyst 9500 Series User Manual

ID, even if other interfaces have higher IP addresses. Because loopback interfaces never fail, this provides
greater stability. OSPF automatically prefers a loopback interface over other interfaces, and it chooses the
highest IP address among all loopback interfaces.
How to Configure OSPF
Default OSPF Configuration
Table 9: Default OSPF Configuration
Default SettingFeature
Cost:
Retransmit interval: 5 seconds.
Transmit delay: 1 second.
Priority: 1.
Hello interval: 10 seconds.
Dead interval: 4 times the hello interval.
No authentication.
No password specified.
MD5 authentication disabled.
Interface parameters
Authentication type: 0 (no authentication).
Default cost: 1.
Range: Disabled.
Stub: No stub area defined.
NSSA: No NSSA area defined.
Area
100 Mb/s.Auto cost
Disabled. When enabled, the default metric setting is 10, and the external
route type default is Type 2.
Default-information originate
Built-in, automatic metric translation, as appropriate for each routing
protocol.
Default metric
dist1 (all routes within an area): 110. dist2 (all routes from one area to
another): 110. and dist3 (routes from other routing domains): 110.
Distance OSPF
Disabled. All outgoing link-state advertisements (LSAs) are flooded to the
interface.
OSPF database filter
Disabled.IP OSPF name lookup
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
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Configuring IP Unicast Routing
How to Configure OSPF

Cisco Catalyst 9500 Series Specifications

General

Series	Catalyst 9500 Series
Category	Switch
Software	Cisco IOS XE
Operating Temperature	0°C to 45°C (32°F to 113°F)
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Fixed Uplink Modules	Varies by model
Stacking	Yes (StackWise Virtual)
Redundancy	Redundant power supplies and fans
Security	Advanced security features
PoE+	Available (varies by model)
Power Supply Options	AC and DC options (varies by model)
Relative Humidity	5% to 90% noncondensing
Dimensions (H x W x D)	Varies by model
Weight	Varies by model
Ports	Up to 48 ports (varies by model)