Accton Technology ES4626 - Manual (Page 475)

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areas should only be connected to other non 0 area through 0 area; a border Layer 3
switch means that one part of the interfaces of this switch belongs to 0 area, the other
part belongs to non 0 area; Layer 3 switch DR should be specified for multi-access
network such as broadcast network.
If the OSPF routing problem remains unresolved after checking and debugging,
please use debug ospf packet/events commands and record the debug messages in
three minutes ,then send it to our technical service center.
13.6.5.1 Commands for Monitor And Debug
13.6.5.1.1 debug ospf events
Command: [no]debug ospf events
[abr|asbr|lsa|nssa|os|router|vlink]
Function: Open debugging switches showing various OSPF events messages; the
“[no]debug ospf events [abr|asbr|lsa|nssa|os|router|vlink]” command closes the
debugging switch.
Default: Closed
Command Mode: Admin and global mode
Example:
Switch#debug ospf events router
13.6.5.1.2 debug ospf ifsm
Command: [no]debug ospf ifsm [status|events|timers]
Function: Open debugging switches showing the OSPF interface states; the “[no]debug
ospf ifsm [status|events|timers] ” command closes this debugging switches.
Default: Closed
Command Mode: Admin mode and global mode
Example:
Switch#debug ospf ifsm events
13.6.5.1.3 debug ospf lsa
Command: [no]debug ospf lsa
[generate|flooding|install|maxage|refresh]
Function: Open debugging switches showing showing link state announcements; the
“[no]debug ospf lsa [generate|flooding|install|maxage|refresh]” closes the debugging
switches.
Default: Closed
Command Mode: Admin mode and global mode
Example:
Switch#debug ospf lsa generate