Dell Command Line Reference Guide for the S4048–ON System 9.14.2.4

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debug ip ospf

Display debug information on OSPF. Entering the debug ip ospf commands enables OSPF debugging for the first OSPF process.

S4048–ON

Syntax
debug ip ospf [process-id] [vrf vrf-name] [bfd |event | packet | spf | database-timer rate-limit]

To cancel the debug command, use the no debug ip ospf command.

Parameters
process-id
Enter the OSPF Process ID to clear a specific process. If no Process ID is entered, all OSPF processes are cleared.
vrf vrf-name
Enter the keyword vrf to view debugging information on OSPF corresponding to that VRF.
bfd
(OPTIONAL) Enter the keyword bfd to debug only OSPF BFD information.
event
(OPTIONAL) Enter the keyword event to debug only OSPF event information.
packet
(OPTIONAL) Enter the keyword packet to debug only OSPF packet information.
spf
(OPTIONAL) Enter the keyword spf to display the Shortest Path First information.
database-timer rate-limit
(OPTIONAL) Enter the keywords database-timer rate-limit to display the LSA throttling timer information. This applies to the S4810 platform only.
Command Modes
EXEC Privilege
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100-ON.
9.8(2.0)
Introduced on the S3100 series.
9.8(1.0)
Introduced on the Z9100-ON.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.4(0.0)
Added support for VRF. Introduced on the S6000-ON.
9.2(1.0)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
8.3.11.1
Introduced on the Z9000.
8.3.8.0
Added the database-timer rate-limit option for the S4810.
8.3.7.0
Introduced on the S4810.
7.8.1.0
Added support for the Multi-Process OSPF.
7.6.1.0
Introduced on the S-Series.
7.5.1.0
Introduced on the C-Series.
pre- 6.1.1.1
Introduced on the E-Series.
Usage Information
The following describes the debug ip ospf command shown in the Example below.
Field
Description
8:14
Displays the time stamp.
OSPF
Displays the OSPF process ID: instance ID.
v:
Displays the OSPF version. Dell EMC Networking OS supports version 2 only.
t:
Displays the type of packet sent:
  • 1 - Hello packet
  • 2 - database description
  • 3 - link state request
  • 4 - link state update
  • 5 - link state acknowledgement
l:
Displays the packet length.
rid:
Displays the OSPF router ID.
aid:
Displays the Autonomous System ID.
chk:
Displays the OSPF checksum.
aut:
States if OSPF authentication is configured. One of the following is listed:
  • 0 - no authentication configured
  • 1 - simple authentication configured using the ip ospf authentication-key command
  • 2 - MD5 authentication configured using the ip ospf message-digest-key command
auk:
If the ip ospf authentication-key command is configured, this field displays the key used.
keyid:
If the ip ospf message-digest-key command is configured, this field displays the MD5 key
to:
Displays the interface to which the packet is intended.
dst:
Displays the destination IP address.
netmask:
Displays the destination IP address mask.
pri:
Displays the OSPF priority
N, MC, E, T
Displays information available in the Options field of the HELLO packet:
  • N + (N-bit is set)
  • N - (N-bit is not set)
  • MC+ (bit used by MOSPF is set and router is able to forward IP multicast packets)
  • MC- (bit used by MOSPF is not set and router cannot forward IP multicast packets)
  • E + (router is able to accept AS External LSAs)
  • E - (router cannot accept AS External LSAs)
  • T + (router can support TOS)
  • T - (router cannot support TOS)
hi:
Displays the amount of time configured for the HELLO interval.
di:
Displays the amount of time configured for the DEAD interval.
dr:
Displays the IP address of the designated router.
bdr:
Displays the IP address of the Border Area Router.
Example
DellEMC# debug ip ospf 1 packet
OSPF process 90, packet debugging is on

DellEMC#
08:14:24 : OSPF(100:00):
Xmt. v:2 t:1(HELLO) l:44 rid:192.1.1.1
   aid:0.0.0.1 chk:0xa098 aut:0 auk: keyid:0 to:Te 4/3 dst:224.0.0.5
      netmask:255.255.255.0 pri:1 N-, MC-, E+, T-,
      hi:10 di:40 dr:90.1.1.1 bdr:0.0.0.0

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