3com S7906E Manuel De Montage

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To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
 
Enter OSPF view 
ospf [ process-id | router-id router-id | 
vpn-instance instance-name ] * 
— 
Specify the maximum number 
of external LSAs in the LSDB 
lsdb-overflow-limit number 
Optional 
Not specified by 
default 
 
Making External Route Selection Rules Defined in RFC 1583 Compatible 
The selection of an external route from multiple LSAs defined in RFC 2328 is different from the one 
defined in RFC 1583. If RFC 1583 is made compatible with RFC 2328, the routes in the backbone area 
are preferred; if not, the routes in the non-backbone area are preferred to reduce the burden of the 
backbone area.  
Follow these steps to make them compatible: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
 
Enter OSPF view 
ospf [ process-id | router-id router-id 
vpn-instance instance-name ] * 
Required 
Make RFC 1583 
compatible 
rfc1583 compatible 
Optional 
Compatible by default 
 
 
To avoid routing loops, it is recommended to configure all the routers to be either compatible or 
incompatible with the external route selection rules defined in RFC 1583. 
 
Logging Neighbor State Changes 
Follow these steps to enable the logging of neighbor state changes: 
To do… 
Use the command… 
Remarks 
Enter system view  
system-view 
 
Enter OSPF view 
ospf [ process-id | router-id router-id | 
vpn-instance instance-name ] * 
— 
Enable the logging of neighbor 
state changes 
log-peer-change 
Optional 
Enabled by default