beautypg.com

Ospf area – Amer Networks E5Web GUI User Manual

Page 306

background image

In other words, the OSPF authentication method must be replicated on all Clavister
Security Gateways.

Advanced

Time Settings

SPF Hold Time

Specifies the minimum time, in seconds, between two SPF calculations.
The default time is 10 seconds. A value of 0 means that there is no
delay. Note however that SPF can potentially be a CPU demanding
process, so in a big network it might not be a good idea to run it too
often.

SPF Delay Time

Specifies the delay time, in seconds, between when OSPF receives a
topology change and when it starts a SPF calculation. The default time
is 5 seconds. A value of 0 means that there is no delay. Note however
that SPF can potentially be a CPU demanding process, so in a big
network it might not be a good idea to run it to often.

LSA Group Pacing

This specifies the time in seconds at which interval the OSPF LSAs are
collected into a group and refreshed. It is more optimal to group many
LSAs and process them at the same time, instead of running them one
and one.

Routes Hold Time

This specifies the time in seconds that the routing table will be kept
unchanged after a reconfiguration of OSPF entries or a HA failover.

Memory Settings

Memory Max Usage

Maximum amount in Kilobytes of RAM that the OSPF AS process are
allowed to use, if no value is specified the default is 1% of installed
RAM. Specifying 0 indicates that the OSPF AS process is allowed to use
all available ram in the security gateway.

4.6.3.2. OSPF Area

The Autonomous System (AS) is divided into smaller parts called an Area, this section explains
how to configure areas. An area collects together OSPF interfaces, neighbors, aggregates and
virtual links.

An OSPF Area is a child of the OSPF Router Process and there can be many area objects defined
under a single router process. In most simple networking scenarios, a single area is sufficient. Like
the router process object, a similar area object should be defined on all the Clavister Security
Gateways which will be part of the OSPF network.

General Parameters

Name

Specifies the name of the OSPF Area.

ID

Specifies the area id. If 0.0.0.0 is specified then this is the
backbone area.

Chapter 4: Routing

306

This manual is related to the following products: