Cisco Nexus 3548 User Manual

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Cisco Nexus 3548 Switch NX-OS Unicast Routing Command Reference
OL-27852-01
Chapter Unicast Routing Commands
timers throttle spf (OSPF)
timers throttle spf (OSPF)
To set the shortest-path first (SPF) best-path schedule initial delay time and the minimum hold between
SPF best-path calculation for Open Shortest Path First (OSPF), use the timers throttle spf command.
To turn off SPF throttling, use the no form of this command.
timers throttle spf spf-start spf-hold spf-max-wait
no timers throttle spf spf-start spf-hold spf-max-wait
Syntax Description
Command Default SPF throttling is not set.
Command Modes Router configuration mode
VRF configuration mode
Command History
Usage Guidelines The first wait interval between SPF calculations is the amount of time in milliseconds specified by the
spf-start argument. Each consecutive wait interval is two times the current hold level in milliseconds
until the wait time reaches the maximum time in milliseconds as specified by the spf-maximum
argument. Subsequent wait times remain at the maximum until the values are reset or an LSA is received
between SPF calculations.
This command requires the LAN Enterprise Services license.
Examples This example shows how to configure a router configured with the start, hold, and maximum interval
values for the timers throttle spf command set at 5, 1,000, and 90,000 milliseconds:
switch# configure terminal
switch(config)# router ospf 1
switch(config-router)# timers throttle spf 5 1000 90000
switch(config-router)#
spf-start Initial SPF schedule delay in milliseconds. The range is from 1 to 600,000
milliseconds.
spf-hold Minimum hold time between two consecutive SPF calculations. The range
is from 1 to 600,000 milliseconds.
spf-max-wait Maximum wait time between two consecutive SPF calculations. The range
is from 1 to 600,000 milliseconds.
Release Modification
5.0(3)A1(1) This command was introduced.

Cisco Nexus 3548 Specifications

General

Rack Units	1RU
Product Type	Switch
Form Factor	Rack-mountable
Jumbo Frame Support	9216 bytes
Input Voltage	100-240 VAC
Product Series	Nexus 3000
Model	Nexus 3548
Operating System	Cisco NX-OS
Ports	48 x 10GE SFP+
Latency	190 ns
Airflow	Front-to-back

Summary

New and Changed Information

Preface

Describes audience, organization, and conventions of the document.

Document Conventions

Explains conventions used in command descriptions and screen examples.

Related Documentation

Lists other Cisco documentation for related products.

Unicast Routing Commands

additional-paths receive

Enables BGP additional paths for a prefix to be received from a capable peer.

address-family (BGP neighbor)

Enters neighbor address family mode for configuring BGP routing protocols.

area authentication (OSPF)

Enables authentication for an Open Shortest Path First (OSPF) area.

aggregate-address (BGP)

Creates a summary address in a Border Gateway Protocol (BGP) routing table.

authentication (HSRP)

Configures authentication for the Hot Standby Router Protocol (HSRP).

distance (EIGRP)

Sets administrative distances for EIGRP internal and external routes.

redistribute (BGP)

Injects routes from one routing domain into the Border Gateway Protocol (BGP).

router bgp

Assigns an autonomous system (AS) number and enters BGP configuration mode.

neighbor

Configures a Border Gateway Protocol (BGP) neighbor and enters configuration mode.

Unicast Routing Show Commands

show bgp

Displays Border Gateway Protocol (BGP) routes.

show ip eigrp neighbors

Displays information about neighbors discovered by EIGRP.

show ip ospf neighbors

Displays Open Shortest Path First (OSPF)-neighbor information on a per-interface basis.

show ip route

Displays routes from the unicast Routing Information Base (RIB).

show running-config

Displays the running configuration.

show vrrp

Shows information about the Virtual Router Redundancy Protocol (VRRP).