3Com 4800G Series, Configuration Manual

Page: 445 / 1246

IPv6 OSPFv3 Configuration Task List 445
If a router receives no hello packet from a neighbor after a period, it will declare
the peer is down. The period is called dead interval.
After sending an LSA to its adjacency, a router waits for an acknowledgment from
the adjacency. If no response is received after retransmission interval elapses, the
router will send again the LSA. The retransmission interval must be longer than the
round-trip time of the LSA in between.
LSA delay time
Each LSA has an age in the local LSDB (incremented by 1 per second), but an LSA
is not aged on transmission. You need to add an LSA delay time into the age time
before transmission, which is important for low speed networks.
SPF timer
Whenever LSDB changes, SPF recalculation happens. If recalculations become so
frequent, a large amount of resources will be occupied, reducing operation
efficiency of routers. You can adjust SPF calculation interval and delay time to
protect networks from being overloaded due to frequent changes.
OSPFv3 Features
Supported
■
Basic features defined in RFC2740
■
OSPFv3 stub area
Related RFCs
■
RFC2740: OSPF for IPv6
■
RFC2328: OSPF Version 2
IPv6 OSPFv3
Configuration Task
List
Complete the following tasks to configure OSPFv3:
Task Remarks
“Configuring OSPFv3 Basic Functions” on page 446 Required
“Configuring OSPFv3 Area Parameters” on
page 446 “Configuring an OSPFv3 Stub
Area” on page 447 Optional
“Configuring OSPFv3 Virtual
Links” on page 447 Optional
“Configuring OSPFv3 Routing Information
Management” on page 447 “Configuring OSPFv3 Route
Summarization” on page 448 Optional
“Configuring OSPFv3 Inbound
Route Filtering” on page 448 Optional
“Configuring Link Costs for
OSPFv3 Interfaces” on page 448 Optional
“Configuring the Maximum
Number of OSPFv3 Load-balanced
Routes” on page 449 Optional
“Configuring a Priority for
OSPFv3” on page 449 Optional
“Configuring OSPFv3 Route
Redistribution” on page 449 Optional