Users Guide

Table Of Contents
Usage Information The “E” flag output indicates the router listed is an ASBR. The “B” flag indicates that the router listed is an ABR. If
the Flag field shows both E and B, it indicates that the listed router is both an ASBR and an ABR.
Example
OS10# show ip ospf 10 topology
Router ID Flags Cost Nexthop Interface Area
111.111.111.1 -/B/-/ 1 111.1.1.2 Vl 3051 0
111.111.111.2 -/B/-/ 1 111.2.1.2 Vl 3053 0
112.2.1.1 E/-/-/ 1 110.1.1.2 Vl 3050 0
112.112.112.1 -/B/-/ 2 110.1.1.2 Vl 3050 0
112.112.112.2 -/B/-/ 2 110.1.1.2 Vl 3050 0
Supported
Releases
10.2.0E or later
summary-address
Configures a summary address for an ASBR to advertise one external route as an aggregate for all redistributed routes covered by a
specified address range.
Syntax
summary-address ip-address/mask [not-advertise | tag tag-value]
Parameters
ip-address/mask—Enter the IP address to summarize along with the mask.
not-advertise—(Optional) Suppresses IP addresses that do not match the network prefix/mask.
tag-value—(Optional) Enter a value to match the routes redistributed through a route map, from 1 to
65535.
Default) Not configured
Command Mode ROUTER-OSPF
Usage Information The no version of this command disables the summary address.
Example
OS10(config)# router ospf 100
OS10(config-router-ospf-100)# summary-address 10.0.0.0/8 not-advertise
Supported
Releases
10.3.0E or later
timers lsa arrival
Configures the LSA acceptance intervals.
Syntax
timers lsa arrival arrival-time
Parameters arrival-time — Set the interval between receiving the LSA in milliseconds, from 0 to 600,000.
Default 1000 milliseconds
Command Mode ROUTER-OSPF
Usage Information Setting the LSA arrival time between receiving the LSA repeatedly ensures that the system gets enough time to
accept the LSA. The no version of this command resets the value to the default.
Example
OS10(config)# router ospf 10
OS10(conf-router-ospf-10)# timers lsa arrival 2000
Supported
Releases
10.2.0E or later
timers spf
Enables shortest path first (SPF) throttling to delay an SPF calculation when a topology change occurs.
Syntax
timers spf [start-time [hold-time [max-wait]]]
Parameters
start-time — Sets the initial SPF delay in milliseconds, from 1 to 600000; default 1000.
642 Layer 3