Tuning and optimizing ospfv3 networks, Configuration prerequisites, Configuring ospfv3 timers – H3C Technologies H3C S12500 Series Switches User Manual

Page 332

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Step Command

Remarks

5.

Inject a default route.

default-route-advertise [ always |
cost value | type type |
route-policy route-policy-name ] *

Optional.
Not injected by default.

6.

Filter redistributed routes.

filter-policy { acl6-number |
ipv6-prefix ipv6-prefix-name }

export [ isisv6 process-id | ospfv3

process-id | ripng process-id |
bgp4+ | direct | static ]

Optional.
Not configured by default.

Tuning and optimizing OSPFv3 networks

This section describes configurations of OSPFv3 timers, interface DR priority, MTU check ignorance for

DD packets, and disabling interfaces from sending OSPFv3 packets.
The following are OSPFv3 timers:

Packet timer—Specified to adjust topology convergence speed and network load.

LSA delay timer—Specified especially for low-speed links.

SPF timer—Specified to protect networks from being over-loaded due to frequent network changes.

For a broadcast network, you can configure DR priorities for interfaces to affect DR and BDR election.
By disabling an interface from sending OSPFv3 packets, you can make other routers on the network

obtain no information from the interface.

Configuration prerequisites

Before you tune and optimize OSPFv3 networks, complete the following tasks:

Enable IPv6 packet forwarding.

Configure basic OSPFv3.

Configuring OSPFv3 timers

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter interface view.

interface interface-type
interface-number

N/A

3.

Configure the hello
interval.

ospfv3 timer hello seconds [ instance
instance-id ]

Optional.
By default, the hello interval on P2P,

broadcast interfaces is 10 seconds.

4.

Specify the poll interval. ospfv3 timer poll seconds [ instance

instance-id ]

Optional.
By default, the poll interval is 120
seconds.

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