How many types of LSA are there?
6 Types of OSPF LSA.
What is OSPFv3?
OSPFv3 is the Open Shortest Path First routing protocol for IPv6. It is similar to OSPFv2 in its concept of a link state database, intra- and inter-area, and AS external routes and virtual links.
Is OSPFv3 only for IPv6?
An OSPFv3 process can be configured to be either IPv4 or IPv6. The address-family command is used to determine which AF will run in the OSPFv3 process, and only one address family can be configured per instance.
What OSPFv3 can do and how?
OSPFv3 allows for multiple instances per link by adding an Instance ID to the OSPF packet header to distinguish instances. An interface assigned to a given Instance ID will drop OSPF packets whose Instance ID does not match.
What ospfv3 LSA has LS type 0x0008?
OSPFv3 Link State Advertisements
| LSA Name | LS Type | Description |
|---|---|---|
| Link LSA | 0x0008 | Link-local addresses and list IPv6 prefixes associated with the link |
| Intra-Area-Prefix LSA | 0x2009 | IPv6 prefixes associated with a router, a stub network, or an associated transit network segment |
How do I enable IPv6 on OSPFv3?
To enable the OSPF-for-IPv6 process on an interface and assign that interface to an area, use the ipv6 ospf ospf-process area area-id command in the interface configuration mode. To be able to enable OSPFv3 on an interface, the interface must be enabled for IPv6.
What is OSPFv3 used for?
OSPFv3 is a routing protocol for IPv4 and IPv6. It is a link-state protocol, as opposed to a distance-vector protocol. Think of a link as being an interface on a networking device. A link-state protocol makes its routing decisions based on the states of the links that connect source and destination machines.
What is OSPFv3 protocol?
What multicast addresses does OSPFv3 use?
OSPFv3 uses IPv6 link-local addresses to identify the OSPFv3 adjacency neighbors. The multicast addresses used by OSPFv3 are as follows: FF02::5—This address represents all SPF routers on the link-local scope; it is equivalent to 224.0. 0.5 in OSPFv2.
What is type 8 LSA OSPF?
A Type 8 LSA is used to give information about link-local addresses and a list of IPv6 addresses on the link. In OSPFv2, the Type 8 was originally intended to be used as a so-called External-Attributes-LSA for transit autonomous systems where OSPFv2 could replace the internal Border Gateway Protocol (iBGP).
Is lsa-9 prefix used in OSPFv3?
Furthermore IPv6 OSPF implementation i.e OSPFv3 database is using both Link (LSA-8) and Intra-Area prefix (LSA-9) LSA in its database but Intra-Area Prefix LSA alone not marked as LSA-9. Solved! Go to Solution. 12-17-2015 12:39 PM
What type of LSA packets does an OSPF router use?
An OSPF router uses LSA Type 1 packets to describe its own interfaces but also carries information about its neighbors to adjacent routers in the same area. Figure 2. LSA Type 1 Packets exchanged between OSPF routers within the same area
How are LSA Type 7 packets transformed into LSA Type 5 packets?
Figure 7. LSA Type 7 packets passing through an NSSA and being transformed into LSA Type 5 by the ABR In the above example, ABR R2 translates LSA Type 7 into a LSA Type 5 and floods it into the OSPF network.
Where can I find the LSA functional code for flooding?
The ‘9’ is the LSA Functional Code enumerating the LSA type and purpose, while the ‘2’ at the beginning states that this LSA has an area-wide flooding scope. IANA maintains a registry of currently defined OSPFv3 LSA functional codes and you can find it on the following URL: