show ipv6 ospf database
Use this command to display information in the OSPFv3 Link State database.
Command Syntax
show ipv6 ospf database
show ipv6 ospf database (self-originate|max-age|adv-router A.B.C.D|)
show ipv6 ospf database (router|network|inter-prefix|inter-router|external|nssa-external|link|intra-prefix|te|grace)
show ipv6 ospf database (router|network|inter-prefix|inter-router|external|nssa-external|link|intra-prefix|te|grace) (self-originate|adv-router A.B.C.D|)
show ipv6 ospf database (router|network|inter-prefix|inter-router|external|nssa-external|link|intra-prefix|te|grace) A.B.C.D (self-originate|adv-router A.B.C.D|)
show ipv6 ospf WORD database
show ipv6 ospf WORD database (router|network|inter-prefix|inter-router|external|nssa-external|link|intra-prefix|te|grace)
show ipv6 ospf WORD database (router|network|inter-prefix|inter-router|external|nssa-external|link|intra-prefix|te|grace) adv-router A.B.C.D
Parameters
self-originate
Self-originated link states
max-age
LSAs in MaxAge list
adv-router
Advertising router for Type 8 Link LSAs (Link State Advertisements):
A.B.C.D
Router ID of the advertising router.
router
Router LSAs.
network
Network LSAs.
inter-prefix
Inter-Area-Prefix LSAs.
inter-router
Inter-Area-Router LSAs.
external
AS external LSAs.
nssa-external
NSSA LSAs.
link
Link LSAs.
intra-prefix
Intra-Area-Prefix LSAs (Type 9) with prefixes for stub and transit networks
te
Intra-area TE LSAs.
grace
Grace LSAs.
A.B.C.D
Link state ID as an IP address.
WORD
Tag value to use as a “match” value for controlling redistribution via route maps.
Command Mode
Privileged Exec mode and Exec Mode
Applicability
This command was introduced before OcNOS version 1.3.
Example: adv-router Parameter
This example shows using the adv-router parameter:
#show ipv6 ospf database link adv-router 10.70.0.58
OSPFv3 Router with ID (10.70.0.58) (Process 100)
Link-LSA (Interface eth1)
LS age: 492
LS Type: Link-LSA
Link State ID: 0.0.0.3
Advertising Router: 10.70.0.58
LS Seq Number: 0x80000001
Checksum: 0xC2D6
Length: 68
Priority: 1
Options: 0x000013 (-|R|-|-|E|V6)
Link-Local Address: fe80::204:75ff:feaa:fedb
Number of Prefixes: 2
Prefix: 5f00:1:2:10::/64
Prefix Options: 0 (-|-|-|-)
Header
OSPFv3 Router with ID (10.70.0.58) (Process 100)
Link-LSA (Interface eth1)
The router ID and OSPFv3 process tag of the local router.
Interface name of the router associated with this Link-LSA.
OSPFv3 Database Fields
Table 3-52 explains the fields for each database entry.
Table 3-52: OSPFv3 database fields
Field | Description |
|---|
LS age | The length of time in seconds since the LSA was originated. |
LS Type | The type of LSA |
Link State ID | Interface identifier of the originating router. |
Advertising router | The Router ID of the router advertising this LSA. On a transit network, this is always the Designated Router ID. |
LS Seq Number | Sequence number of an LSA. |
Checksum | LSA header checksum (excluding the LS age field). |
Length | The length in bytes of the LSA (including the 20-byte header). |
Priority | The router priority of the interface attaching the originating router of the link. |
Options | Bits in network LSAs that originate on the link: DC-bit: Whether the router supports OSPF over Demand Circuits. R-bit: Whether the router is active. If this bit is clear, routes which transit the advertising node cannot be computed. N-bit: How the router handles Type 7 LSAs. MC-bit: Whether IP multicast packets are forwarded. E-bit: Whether AS-External-LSAs are flooded. This bit is set in all AS External LSAs and in all LSAs. originated in the backbone and non-stub areas. V6-bit: Whether to include the router/link in routing calculations. |
Link-Local Address | The originating router's link-local interface address. |
Number of Prefixes | The number of IPv6 prefixes associated to the link: Prefix: The global IPv6 prefix associated to this link. Prefix Options: Each prefix is advertised along with an 8-bit capabilities field.They serve as input for routing calculations allowing, for example, some prefixes to be ignored or marked as not re-advertisable. |
Referenced LS Type | Identifies the Router-LSA or Network-LSA with which the IPv6 prefixes are associated: Type 0x2001: prefixes associated with Router-LSA Type 0x2002: prefixes associated with Network-LSA |
Referenced Link State ID | Referenced LS Type 0x2001: this field is 0 Referenced LS Type 0x2002: the interface ID of the link's Designated Router. |
Referenced Advertising Router | Referenced LS Type 0x2001: ID of the originating router. Referenced LS Type 0x2002: ID of the Designated Router Prefix: Referenced LS Type 0x2001: global IPv6 prefix associated with the router Referenced LS Type 0x2002: global IPv6 prefix associated with the transit link Prefix Options: Bits in network LSAs that originate on the link: DC: How the router handles demand circuits R: Whether the router is active. If this bit is clear, routes which transit the advertising node cannot be computed. N: How the router handles Type 7 LSAs MC: Whether IP multicast packets are forwarded E: Whether AS-External-LSAs are flooded V6: Whether to include the router/link in routing calculations Metric: The cost of this prefix. |
Example: intra-prefix and adv-router Parameters
This example shows using the adv-router and intra-prefix parameters.
Note: The same information for OSPFv2 can be viewed in type 1 router LSAs and type 2 network LSAs. However, in OSPFv3 all addressing information has been removed from router LSAs and network LSAs, leading to the introduction of the Intra-Area-Prefix LSA. In a transit network, the Intra-Area-Prefix-LSA serves the same purpose as a network LSA and on a point-to-point or point-to-multipoint network serves the same purpose as a router LSA.
#show ipv6 ospf database intra-prefix adv-router 10.70.0.58
OSPFv3 Router with ID (10.70.0.58) (Process 100)
Intra-Area-Prefix-LSA (Area 0.0.0.0)
LS age: 1435
LS Type: Intra-Area-Prefix-LSA
Link State ID: 0.0.0.2
Advertising Router: 10.70.0.58
LS Seq Number: 0x80000001
Checksum: 0x1B4E
Length: 56
Number of Prefixes: 2
Referenced LS Type: 0x2002
Referenced Link State ID: 0.0.0.3
Referenced Advertising Router: 10.70.0.58
Prefix: 5f00:1:2:10::/64
Prefix Options: 0 (-|-|-|-)
Metric: 0
Prefix: 6f00:1:2:10::/64
Prefix Options: 0 (-|-|-|-)
Metric: 0
Header
OSPFv3 Router with ID (10.70.0.58) (Process 100)
Intra-Area-Prefix-LSA (Area 0.0.0.0)
• The router ID and OSPFv3 process tag for the router.
• Intra-Area-Prefix-LSA has area flooding scope. This LSA belongs to Area 0.0.0.0.
Last modified date: 10/16/2023