R2511-HP MSR Router Series Layer 3 - IP Routing Command Reference(V5)

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Usage guidelines
As defined in RFC 2328, all non-backbone areas must maintain connectivity to the backbone. You can
use the vlink-peer command to configure a virtual link to connect an area to the backbone.
Considerations on parameters:
• The smaller the hello interval is, the faster the network converges and the more network resources
are consumed.
• A so small retransmission interval will lead to unnecessary retransmissions. A big value is
appropriate for a low speed link.
• Specify an appropriate transmission delay with the trans-delay keyword.
Use this command to configure MD5 or simple authentication for a virtual link. For MD5/ HMAC-MD5
authentication, you can configure multiple passwords by executing this command multiple times and
each command must have a unique key ID, and one password.
For security purposes, all passwords, including passwords configured in plain text, are saved in cipher
text to the configuration file.
If you configure OSPF authentication for both the backbone area and a virtual link, the virtual link uses
the OSPF authentication configured on it.
Examples
# C o n f i g u r e a v i r t u a l l i n k t o t h e n e i g h b o r wi t h ro u t e r I D 1.1.1.1.
<Sysname> system-view
[Sysname] ospf 100
[Sysname-ospf-100] area 2
[Sysname-ospf-100-area-0.0.0.2] vlink-peer 1.1.1.1
Related commands
• authentication-mode
• display ospf vlink