OSPF Operational Commands
OSPF Show Commands
OSPF ABR
Displays the OSPF Area Border Router (ABR) information.
Syntax:
show ospf abr
Example: OSPF ABR information
supervisor@rtbrick>SPINE01: cfg> show ospf abr
Instance: default, Area: 198.51.100.0
Node ID Cost Advertising Router Flags Interface Nexthop
198.51.100.20 10000 198.51.100.20 -|-|-|B ifl-0/0/0/1 198.51.100.27
198.51.100.30 20000 198.51.100.30 -|-|-|B ifl-0/0/0/1 198.51.100.27
198.51.100.40 55000 198.51.100.40 -|-|-|B ifl-0/0/0/1 198.51.100.27
198.51.100.50 55000 198.51.100.50 -|-|-|B ifl-0/0/0/1 198.51.100.27
OSPF ASBR
Displays Autonomous System Border Router information.
Syntax:
show ospf asbr
Example: OSPF ASBR information
supervisor@rtbrick>SPINE01: cfg> show ospf asbr
Instance: default, Area:
Node ID Cost Advertising Router Flags Interface Nexthop
198.51.100.32 40000 198.51.100.20 ifl-0/0/0/1 198.51.100.27
OSPF LSA Request List
Displays the list of all link-state advertisements (LSAs) requests which have been sent or received by a router.
Syntax:
show ospf request-list <options>
Option | Description |
---|---|
in |
Displays the list of all link-state advertisement (LSA) requests which have been received from other routers. |
out |
Displays the list of all link-state advertisement (LSA) requests which have been sent or transmitted from the router. |
detail |
Provides detailed information. |
Example 1: OSPF LSA requests sent to a neighbor
supervisor@rtbrick>SPINE01: op> show ospf request-list out
Instance: default
Type Link State ID Advertising Router Age Sequence Checksum
Summary-Network 1.0.128.0 198.51.100.23 99 0x80000001 0x23ed
Summary-Network 1.0.129.0 198.51.100.23 99 0x80000001 0x18f7
Summary-Network 1.0.130.0 198.51.100.23 99 0x80000001 0xd02
Example 2: Detailed information for OSPF LSA requests sent to a neighbor
supervisor@rtbrick>SPINE01: op> show ospf request-list out detail
Instance: default, LSAs
LSA ID: 1.0.128.0
Advertised router : 198.51.100.23
LSA type : Summary-Network
LSA age : 179
Sequence number : 0x80000001
Length : 0
Options : *|-|-|-|-|-|-|*
Checksum : 0x23ed
Interface : ifl-0/1/26/10
Router ID : 198.51.100.42
Neighbor Address : 198.51.100.91
LSA ID: 1.0.129.0
Advertised router : 198.51.100.23
LSA type : Summary-Network
LSA age : 179
Sequence number : 0x80000001
Length : 0
Options : *|-|-|-|-|-|-|*
Checksum : 0x18f7
Interface : ifl-0/1/26/10
Router ID : 198.51.100.42
Neighbor Address : 198.51.100.91
LSA ID: 1.0.130.0
Advertised router : 198.51.100.23
LSA type : Summary-Network
LSA age : 179
Sequence number : 0x80000001
Length : 0
Options : *|-|-|-|-|-|-|*
Checksum : 0xd02
Interface : ifl-0/1/26/10
Router ID : 198.51.100.42
Neighbor Address : 198.51.100.91
Example 3: OSPF LSA requests which have been received.
supervisor@rtbrick>SPINE01: op> show ospf request-list in
Instance: default
Type Link State ID Advertising Router Age Sequence Checksum
Summary-Network 1.48.201.0 198.51.100.23 159 0x80000001 0x4c23
Summary-Network 1.48.202.0 198.51.100.23 159 0x80000001 0x412d
Summary-Network 1.48.203.0 198.51.100.23 159 0x80000001 0x3637
Example 4: Detailed information for OSPF LSA requests which have been received.
supervisor@rtbrick>SPINE01: op> show ospf request-list in detail
Instance: default, LSAs
LSA ID: 1.48.201.0
Advertised router : 198.51.100.23
LSA type : Summary-Network
LSA age : 164
Sequence number : 0x80000001
Length : 28
Options : *|-|-|-|-|-|-|*
Checksum : 0x4c23
Interface : ifl-0/0/29/10
Router ID : 198.51.100.23
Neighbor Address : 198.51.100.16
LSA ID: 1.48.202.0
Advertised router : 198.51.100.23
LSA type : Summary-Network
LSA age : 164
Sequence number : 0x80000001
Length : 28
Options : *|-|-|-|-|-|-|*
Checksum : 0x412d
Interface : ifl-0/0/29/10
Router ID : 198.51.100.23
Neighbor Address : 198.51.100.16
LSA ID: 1.48.203.0
Advertised router : 198.51.100.23
LSA type : Summary-Network
LSA age : 164
Sequence number : 0x80000001
Length : 28
Options : *|-|-|-|-|-|-|*
Checksum : 0x3637
Interface : ifl-0/0/29/10
Router ID : 198.51.100.23
Neighbor Address : 198.51.100.16
OSPF Retransmission List
Displays the list of all LSAs waiting to be re-sent or re-transmitted from the router.
Syntax:
show ospf retransmit-list <option>
Option | Description |
---|---|
detail |
Provides detailed information of all LSAs waiting to be re-sent. |
Example: OSPF LSA requests waiting to be retransmitted.
supervisor@rtbrick>SPINE01: op> show ospf retransmit-list
Instance: default
Type Link State ID Advertising Router Age Sequence Checksum
Summary-Network 1.0.128.0 198.51.100.23 99 0x80000001 0x23ed
Summary-Network 1.0.129.0 198.51.100.23 99 0x80000001 0x18f7
Summary-Network 1.0.130.0 198.51.100.23 99 0x80000001 0xd02
OSPF Summary
Displays the OSPF protocol summary information.
Syntax:
show ospf summary <options>
Option | Description |
---|---|
- |
Without any option, the command displays the information for all instances. |
instance <instance-name> |
OSPF summary information for the given instance. |
Example: OSPF summary for the default instance
supervisor@rtbrick>SPINE01: op> show ospf summary
Instance: default
General information
Router ID: 198.51.100.15, Flags: -|-|-|-|-
Flood interval: 1000, Area count: 1,
Opaque capability: False
Segment routing capability: False
Instance Lsa Checksum: 0x3c6fc6
Area: 198.51.100.0
Area Lsa Checksum: 0x39a32e
Interface count: 7
Interface: ifl-0/0/0/1
Address: 198.51.100.85, Cost: 10000, State: Backup
Type: broadcast, MTU: 1500, Priority: 1
Designated Router: 198.51.100.27, Backup Designated Router: 198.51.100.85
Timers
Hello interval: 10 sec, Dead interval: 40 sec
Interface: ifl-0/0/0/100
Address: 12.1.0.1, Cost: 20000, State: P2P
Type: p2p, MTU: 1500, Priority: 1
Designated Router: 198.51.100.0, Backup Designated Router: 198.51.100.0
Timers
Hello interval: 10 sec, Dead interval: 40 sec
Interface: lo-0/0/0/1
Address: 198.51.100.15, Cost: 10000, State: P2P
Type: p2p, MTU: 1500, Priority: 1
Designated Router: 198.51.100.0, Backup Designated Router: 198.51.100.0
Timers
Hello interval: 10 sec, Dead interval: 40 sec
OSPF Interface
Displays OSPF interface information.
Syntax:
show ospf interface <options>
Option | Description |
---|---|
- |
Without any option, the command displays the interface information for all instances. |
detail |
Displays the detailed interface information. |
interface-name <interface-name> <detail> |
Displays detailed information for the specified interface. |
instance <instance-name> |
OSPF interface information for the given instance. |
instance <instance-name> <detail> |
Displays detailed information for the given instance. |
instance <instance-name> <interface-name> |
Displays information for a specified interface for a given instance. |
Example 1: OSPF interface information for the default instance
supervisor@rtbrick>SPINE01: op> show ospf interface
Instance: default
Interface Area IP Address State Type Cost Priority DR BDR MTU
ifl-0/0/0/1 198.51.100.0 198.51.100.85 Backup broadcast 10000 1 198.51.100.27 198.51.100.85 1500
ifl-0/0/0/100 198.51.100.0 198.51.100.77 P2P p2p 20000 1 198.51.100.0 198.51.100.0 1500
lo-0/0/0/1 198.51.100.0 198.51.100.15 P2P p2p 10000 1 198.51.100.0 198.51.100.0 1500
Example 2: OSPF interface detailed information
supervisor@rtbrick>SPINE01: cfg> show ospf interface ifl-0/0/1/100 detail
Instance: default
Interface: ifl-0/0/1/100, Area: 198.51.100.0
State : Backup Type : broadcast
Primary IPv4 : 198.51.100.44 Router Priority : 1
Designated Router: 198.51.100.49 Backup Designated Router: 198.51.100.44
Metric : 30000 IPv4 MTU : 1500
Hello Interval : 10 Router Dead Interval : 40
Wait Timer : 40 Auth Type : none
Capabilities : *|-|-|-|-|-|E|*
Received messages: Sent messages:
Hello : 6641 Hello : 6642
Data descriptor : 247 Data descriptor : 248
LS request : 0 LS request : 1
LS update : 59459 LS update : 117118
LS acknowledgement : 1292 LS acknowledgement : 1305
OSPF Neighbor
Displays OSPF neighbor information.
Syntax:
show ospf neighbor <options>
Option | Description |
---|---|
- |
Without any option, the command displays the neighbor information for all instances. |
instance <instance-name> |
OSPF neighbor information for the given instance. |
detail |
Displays the detailed neighbor information. |
interface <interface-name> |
Displays the neighbor information for a specified interface. |
instance <instance-name> detail |
Displays detailed OSPF neighbor information for the given instance. |
instance <instance-name> interface <interface-name> |
Displays OSPF neighbor information for the specified interface for the given instance. |
instance <instance-name> interface <interface-name> detail |
Displays detailed OSPF neighbor information for the specified interface for the given instance. |
interface <interface-name> detail |
Displays detailed neighbor information for a specified interface. |
Example: OSPF neighbor information for the default instance
supervisor@rtbrick>SPINE01: op> show ospf neighbor
Instance: default
Address Interface Router ID Area State Priority DR BDR Uptime Expires
198.51.100.27 ifl-0/0/0/1 198.51.100.20 198.51.100.0 Full 1 198.51.100.27 198.51.100.85 0d:01h:31m:57s 38 Seconds
198.51.100.4 ifl-0/0/0/100 198.51.100.20 198.51.100.0 Full 1 198.51.100.0 198.51.100.0 0d:01h:32m:36s 39 Seconds
OSPF Database
Displays information from OSPF link-state database that contains data about link-state advertisements (LSAs).
Syntax:
show ospf database <options>
Option | Description |
---|---|
advertising-router <router-id> |
Displays LSDB information for the specified advertising router. |
advertising-router <router-id> detail |
Displays the detailed LSDB information for the specified advertising router. |
advertising-router <router-id> ls-id <ls-id> |
Displays the LSDB information for the specified link-state ID for the advertising router. |
advertising-router <router-id> ls-type external |
Displays the LSDB information for the specified LSA type for the advertising router. Link-state advertisement type includes external, network, router, and summary. |
detail |
Displays detailed information from LSDB. |
instance <instance-name> |
Displays OSPF database information for the given instance. |
ls-id <ls-id> |
OSPF database information for a specific link-state identifier. |
ls-type <type> |
OSPF database information for the specified link-state type. Link-state advertisement type includes external, network, router and summary. |
area <area-id> |
Displays database information for the specified OSPF area. |
area <area-id> advertising-router <router-id> |
Displays LSDB information for the specified advertising router for a specified OSPF area. |
area <area-id> detail |
Displays detailed LSDB information for the specified OSPF area. |
area <area-id> ls-id <ls-id> |
Displays LSDB information for the specified link-state identifier for the specified OSPF area. |
area <area-id> ls-type <type> |
Displays LSDB information for the specified link-state type for the specified OSPF area. Link-state advertisement type includes external, network, router and summary. |
instance <instance-name> advertising router <router-id> |
Displays LSDB information for the specified advertising router for the given instance. |
instance <instance-name> area <area-id> |
Displays LSDB information for the specified area for the given instance. |
instance <instance-name> ls-id <ls-id> |
Displays LSDB information for the specified link-state identifier for the given instance. |
instance <instance-name> ls-type <type> |
Displays LSDB information for the specified type of the given instance. Link-state advertisement type includes external, network, router and summary. |
Example 1: OSPF database information for the default instance
supervisor@rtbrick>SPINE01: cfg> show ospf database
Instance: default, Area: 198.51.100.0
Type Link State ID Advertising Router Age Sequence Checksum Cost Link Count
Router 198.51.100.15 198.51.100.15 71 0x80000009 0x7cb6 - 4
Router 198.51.100.20 198.51.100.20 57 0x8000000a 0x2f7d - 4
Network 198.51.100.27 198.51.100.20 329 0x80000004 0x7e5c - 2
Summary-Network 198.51.100.65 198.51.100.20 374 0x80000004 0xbc36 15000 -
Summary-Network 198.51.100.22 198.51.100.20 374 0x80000004 0x7aae 10000 -
Summary-Asbr 198.51.100.32 198.51.100.20 324 0x80000004 0xe7aa 30000 -
Instance: default
Type Link State ID Advertising Router Age Sequence Checksum Cost Link Count
External 198.50.100.53 198.51.100.32 374 0x80000004 0xba29 16777214 -
Example 2: OSPF database detailed information
supervisor@rtbrick>SPINE01: cfg> show ospf database detail
Instance: default, Area: 198.51.100.0 LSAs
LSA ID: 198.51.100.15
Advertised router : 198.51.100.15
LSA type : Router
LSA age : 417
Sequence number : 0x80000009
Length : 72
Options : *|-|-|-|-|-|E|*
Checksum : 0x7cb6
Flags : -|-|-|-
Number of links : 4
Link ID: 198.51.100.27
Link Data : 198.51.100.85
Type : Transit
Type of service : 0
Metric : 10000
Link ID: 198.51.100.20
Link Data : 12.1.0.1
Type : P2P
Type of service : 0
Metric : 20000
Link ID: 12.1.0.0
Link Data : 255.255.255.0
Type : Stub
Type of service : 0
Metric : 10000
Link ID: 198.51.100.15
Link Data : 255.255.255.255
Type : Stub
Type of service : 0
Metric : 10000
LSA ID: 198.51.100.20
Advertised router : 198.51.100.20
LSA type : Router
LSA age : 25
Sequence number : 0x8000000a
Length : 72
Options : *|-|-|-|-|-|E|*
Checksum : 0x2f7d
Flags : -|-|-|B
Number of links : 4
Link ID: 198.51.100.27
Link Data : 198.51.100.27
Type : Transit
Type of service : 0
Metric : 10000
Link ID: 198.51.100.15
Link Data : 198.51.100.4
Type : P2P
Type of service : 0
Metric : 20000
Link ID: 12.1.0.0
Link Data : 255.255.255.0
Type : Stub
Type of service : 0
Metric : 20000
Link ID: 198.51.100.20
Link Data : 255.255.255.255
Type : Stub
Type of service : 0
Metric : 10000
LSA ID: 198.51.100.27
Advertised router : 198.51.100.20
LSA type : Network
LSA age : 776
Sequence number : 0x80000004
Length : 32
Options : *|-|-|-|-|-|E|*
Checksum : 0x7e5c
Mask : 255.255.255.0
LSA ID: 24.0.1.0
Advertised router : 198.51.100.20
LSA type : Summary-Network
LSA age : 821
Sequence number : 0x80000004
Length : 28
Options : *|-|-|-|-|-|-|*
Checksum : 0xbc36
Mask : 255.255.255.0
Metric : 15000
LSA ID: 198.51.100.22
Advertised router : 198.51.100.20
LSA type : Summary-Network
LSA age : 821
Sequence number : 0x80000004
Length : 28
Options : *|-|-|-|-|-|-|*
Checksum : 0x7aae
Mask : 255.255.255.255
Metric : 10000
LSA ID: 198.51.100.32
Advertised router : 198.51.100.20
LSA type : Summary-Asbr
LSA age : 771
Sequence number : 0x80000004
Length : 28
Options : *|-|-|-|-|-|-|*
Checksum : 0xe7aa
Mask : 255.255.255.255
Metric : 30000
Instance: default, Area: LSAs
LSA ID: 198.50.100.53
Advertised router : 198.51.100.32
LSA type : External
LSA age : 821
Sequence number : 0x80000004
Length : 36
Options : *|-|-|-|-|-|-|*
Checksum : 0xba29
Mask : 255.255.255.0
Metric : 16777214
Metric Type : EXTERNAL_TYPE_1
Forwarding Address: 198.51.100.0
Route Tag : 0
Example 3: OSPF database for an advertising router
supervisor@rtbrick>SPINE01: cfg> show ospf database advertising-router 198.51.100.15
Instance: default, Area: 198.51.100.0
Type Link State ID Advertising Router Age Sequence Checksum Cost Link Count
Router 198.51.100.15 198.51.100.15 690 0x80000009 0x7cb6 - 4
OSPF SPF Result
Displays SPF results.
Syntax:
show ospf spf result <options>
Option | Description |
---|---|
- |
Without any option, the command displays the SPF result of all instances. |
area <area-id> |
Displays SPF result for the specified area. |
instance <instance-name> |
Name of the instance |
node-id <node-id> |
Displays SPF result for the specified node identifier. |
area <area-id> <node-id> |
Displays SPF result for the specified node identifier for a specified area. |
instance <instance-name> area <area-id> |
Displays SPF result for the specified area for a given instance. |
instance <instance-name> node-id <node-id> |
Displays SPF result for the specified node identifier for a given instance. |
Example 1: OSPF SPF Result for the default instance
supervisor@rtbrick>SPINE01: op> show ospf spf result
Instance: default, Area: 198.51.100.0
Node ID Type Cost Advertising Router Flags Neighbor Node Interface Nexthop
198.51.100.27 NETWORK 10000 198.51.100.20 -|-|-|- - local -
198.51.100.15 ROUTER 0 198.51.100.15 -|-|-|- - local -
198.51.100.20 ROUTER 10000 198.51.100.20 -|-|-|B 198.51.100.20 ifl-0/0/0/1 198.51.100.27
198.51.100.20 ifl-0/0/0/100 198.51.100.4
Example 2: OSPF SPF Result for the specified node identifier for the given area
supervisor@rtbrick>SPINE01: op> show ospf spf result area 198.51.100.0 node-id 198.51.100.27
Instance: default, Area: 198.51.100.0
Node ID Type Cost Advertising Router Flags Neighbor Node Interface Nexthop
198.51.100.27 NETWORK 10000 198.51.100.20 -|-|-|- - local -
OSPF Route
Displays OSPF routing table information.
Syntax:
show ospf route <options>
Option | Description |
---|---|
- |
Without any option, the command displays the OSPF route information for all instances. |
instance <instance-name> |
OSPF route information for the given instance. |
instance <instance-name> <afi> |
Displays OSPF route information for the specified address family and instance. The supported AFI value is IPv4. |
instance <instance-name> AFI <ipv4> <unicast | labeled-unicast> |
Displays OSPF route information for the specified SAFI for a specified address family. |
instance <instance-name> label <label> |
Displays OSPF route information for the specified label and instance. |
instance <instance-name> mpls unicast label <label> | type <type> |
Displays OSPF route information for the specified MPLS unicast label or type for the instance. |
prefix <ip> |
Displays OSPF route information for the specified match prefix. |
type |
Displays information for OSPF route type. The route types include |
ipv4 prefix <ip> |
Displays OSPF route information for the specified IPv4 prefix. |
label <label> |
Displays information about the OSPF-labeled routes. |
mpls unicast <label | type> |
Displays information about OSPF MPLS routes |
Example: OSPF route information for the default instance
supervisor@rtbrick>SPINE01: op> show ospf route
Instance: default, AFI: ipv4, SAFI: unicast
Prefix Area Type Cost Next Hop Interface
12.0.0.0/24 198.51.100.0 ospf-direct 10000 n/a local
12.1.0.0/24 198.51.100.0 ospf-direct 10000 n/a local
24.0.1.0/24 198.51.100.0 inter-area 25000 198.51.100.27 ifl-0/0/0/1
198.51.100.4 ifl-0/0/0/100
24.1.1.0/24 198.51.100.0 inter-area 20000 198.51.100.27 ifl-0/0/0/1
198.51.100.4 ifl-0/0/0/100
25.0.1.0/24 198.51.100.0 inter-area 35000 198.51.100.27 ifl-0/0/0/1
198.51.100.4 ifl-0/0/0/100
198.51.100.15/32 198.51.100.0 ospf-direct 10000 n/a local
198.51.100.20/32 198.51.100.0 intra-area 20000 198.51.100.27 ifl-0/0/0/1
OSPF Clear Commands
Clear OSPF Neighbor
Clear OSPF neighbor state information.
Syntax:
clear ospf neighbor <options>
Option | Description |
---|---|
- |
Without any option, the command clears all the OSPF neighbors. |
instance <instance-name> |
Clears OSPF neighbor information for the specified instance. |
instance <instance-name> area <area-id> |
Clears OSPF neighbor for the specified area for the given instance. |
instance <instance-name> area <area-id> interface <interface-name> |
Clears OSPF neighbor for the specified interface for the specified area of the given instance. |
Example:
supervisor@rtbrick>SPINE01: cfg> clear ospf neighbor instance default area 198.51.100.0 interface ifl-0/0/1/100
Instance [default], area[198.51.100.0], interface[ifl-0/0/1/100] clear triggered