Cisco Catalyst 9500 Series User Manual

PurposeCommand or Action
Exits router configuration mode and returns the
router to privileged EXEC mode.
end
Example:
Device(config-router) end
Step 5
(Optional) Verifies that the BFD neighbor is active
and displays the routing protocols that BFD has
registered.
show bfd neighbors [details]
Example:
Device# show bfd neighbors details
Step 6
(Optional) Displays the interfaces for which BFD
support for EIGRP has been enabled.
show ip eigrp interfaces [type number]
[as-number] [detail]
Example:
Device# show ip eigrp interfaces
detail
Step 7
Configuring BFD Support for IS-IS
This section describes the procedures for configuring BFD support for IS-IS so that IS-IS is a registered
protocol with BFD and will receive forwarding path detection failure messages from BFD. There are two
methods for enabling BFD support for IS-IS:
•
You can enable BFD for all of the interfaces on which IS-IS is supporting IPv4 routing by using the bfd
all-interfaces command in router configuration mode. You can then disable BFD for one or more of
those interfaces using the isis bfd disable command in interface configuration mode.
•
You can enable BFD for a subset of the interfaces for which IS-IS is routing by using the isis bfd
command in interface configuration mode.
To configure BFD support for IS-IS, perform the steps in one of the following sections:
Prerequisites
IS-IS must be running on all participating routers.
The baseline parameters for BFD sessions on the interfaces that you want to run BFD sessions to BFD neighbors
over must be configured. See the Configuring BFD Session Parameters on the Interface section for more
information.
Output from the show bfd neighbors details command shows the configured intervals. The output does
not show intervals that were changed because hardware-offloaded BFD sessions were configured with
Tx and Rx intervals that are not multiples of 50 ms.
Note
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
10
Configuring Bidirectional Forwarding Detection
How to Configure Bidirectional Forwarding Detection

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)