Treceți la conținutul principal
Deconectare

Bun venit la Dell

Contul meu
  • Plasaţi comenzi rapid şi simplu
  • Vizualizaţi comenzile şi urmăriţi starea transportului
  • Creaţi şi accesaţi o listă cu produsele dvs.
  • Manage your Dell EMC sites, products, and product-level contacts using Company Administration.
Autentificare Creaţi un cont Autentificare la Premier Autentificare la programul pentru parteneri
Contactaţi-ne

Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

PDF

Enabling Fast-Convergence

The fast-convergence CLI sets the minimum origination and arrival LSA parameters to zero (0), allowing rapid route calculation.

When you disable fast-convergence, origination and arrival LSA parameters are set to 5 seconds and 1 second, respectively.

Setting the convergence parameter (from 1 to 4) indicates the actual convergence level. Each convergence setting adjusts the LSA parameters to zero, but the fast-convergence parameter setting allows for even finer tuning of the convergence speed. The higher the number, the faster the convergence.

To enable or disable fast-convergence, use the following command.

Enable OSPF fast-convergence and specify the convergence level. CONFIG-ROUTEROSPF- id mode fast-convergence { number} The parameter range is from 1 to 4. The higher the number, the faster the convergence. When disabled, the parameter is set at 0.
  • NOTE: A higher convergence level can result in occasional loss of OSPF adjacency. Generally, convergence level 1 meets most convergence requirements. Only select higher convergence levels following consultation with Dell Technical Support.

Example of the fast-converge Command

In the examples below, Convergence Level shows the fast-converge parameter setting and Min LSA origination shows the LSA parameters (shown in bold). 

Dell(conf-router_ospf-1)#fast-converge 2
                                 Dell(conf-router_ospf-1)#ex
                                 Dell(conf)#ex
                                 Dell#show ip ospf 1
                                 Routing Process ospf 1 with ID 192.168.67.2
                                 Supports only single TOS (TOS0) routes
                                 SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
                                 
                                 Convergence Level 2
                                 Min LSA origination 0 secs, Min LSA arrival 0 secs
                                 Number of area in this router is 0, normal 0 stub 0 nssa 0
                                 Dell#
                              
Dell#(conf-router_ospf-1)#no fast-converge
                                 Dell#(conf-router_ospf-1)#ex
                                 Dell#(conf)#ex
                                 Dell##show ip ospf 1
                                 Routing Process ospf 1 with ID 192.168.67.2
                                 Supports only single TOS (TOS0) routes
                                 SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
                                 
                                 Convergence Level 0
                                    Min LSA origination 0 msec, Min LSA arrival 1000 msec
                                 
                                 Number of area in this router is 0, normal 0 stub 0 nssa 0
                                 Dell#

Rate this content

Accurate
Useful
Easy to understand
Was this article helpful?
0/3000 characters
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please select whether the article was helpful or not.
  Comments cannot contain these special characters: <>()\