Siemens S223 User Manual

User Manual                                                                               UMN:CLI 
SURPASS hiD 6615 S223/S323 R1.5 

A50010-Y3-C150-2-7619                                                                         347 

Stub Area is that ABR is connected to Backbone Area. If it is assigned as Stub Area, ABR 
will notify the default path to Stub Area and other routing protocol information will not 
transmit to Stub Area. 

To create Stub Area, use the following command. 

 <0-4294967295> stub  [no-

] 

Router 

Creates a Stub Area. 

 

If no-summary option adds to Stub Area, other Area OSPF routing information also can 
not come to Stub Area, However, it only goes to default route from ABR router. That is To-
tally Stubby Area. 

To delete a created Stub Area, use the following command. 

 <0-4294967295> stub 

[no-summary] 

Router 

Deletes a created Stub Area. 

 

In OSPF, all areas must be connected to a backbone area. If there is a break in backbone 
continuity, or the backbone is purposefully portioned, you can establish a virtual link. The 
virtual link must be configured in both routers.   

OSPF network regards virtual link routers as Point-to-point router. Therefore, the Hello-
interval, Retransmit-interval, Transmit-delay must be consistent across all routers in an at-
tached network. 

User can configure Authentication for security, Authentication key for password, and time 
period for Hello-interval, Retransmit-interval, Transmit-delay and Dead-interval to operate 
virtual link. 

The following items describe 7 configurations for virtual link: 

•

 

 

 

This is configuration for security of routing information. message-digest uses MD5 

 

to encode for authentication, null means not using any of authentication. 

•

 

 

 

Configures the authentication which is based on text encoding. 

•

 

 

 

Configures the authentication which is based on md5 type. 

•

 

 

 

OSPF router sends Hello packet to notify existence of itself. Hello-interval is that 

 

packet transmission interval. 

•

 

 

 

When router transmits LSA, it is waiting for approval information come from receiver.