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Lsa delay timer, Spf timer, Gr timer – H3C Technologies H3C SR8800 User Manual

Page 313: Ospfv3 features supported, Protocols and standards, Ospfv3 configuration task list

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LSA delay timer

Each LSA has an age in the local LSDB (incremented by 1 per second), but an LSA does not age on

transmission. You must add an LSA delay time into the age time before transmission, which is important
for low-speed networks.

SPF timer

Whenever the LSDB changes, an SPF calculation happens. If recalculations become more frequent, a

large amount of resources will be occupied. You can adjust the SPF calculation interval and delay time
to protect networks from being overloaded due to frequent changes.

GR timer

If a failure to establish adjacencies occurs during a GR, the router will be in the GR process for a long

time. To avoid this, you can configure the GR timer for the router to exit the GR process when the timer

expires.

OSPFv3 features supported

Basic features defined in RFC 2740

OSPFv3 stub area

OSPFv3 multi-process

VPN instances

OSPFv3 GR

BFD

Protocols and standards

RFC 2740, OSPF for IPv6

RFC 2328, OSPF Version 2

RFC 5187, OSPFv3 Graceful Restart

OSPFv3 configuration task list

Complete the following tasks to configure OSPFv3:

Task

Remarks

Enabling OSPFv3

Required

Configuring OSPFv3 area
parameters

Configuring an OSPFv3 stub area

Optional

Configuring an OSPFv3 virtual link

Optional

Configuring OSPFv3 network
types

Configuring the OSPFv3 network type for an
interface

Optional

Configuring an NBMA or P2MP neighbor

Optional

Configuring OSPFv3 routing
information control

Configuring OSPFv3 route summarization

Optional

Configuring OSPFv3 inbound route filtering

Optional

Configuring an OSPFv3 cost for an interface

Optional