3Com 5500G-EI Command Reference Guide - Page 220

220 CHAPTER 6: USING ROUTING PROTOCOL COMMANDS simple password Enter the simple text authentication key of the interface, in eight characters or less. This must equal the authentication key of the virtually linked neighbor. md5 keyid Enter the MD5 authentication key ID, in the range 1 to 255. This must be equal to the authentication key ID of the virtually linked peer. key : Specify the MD5 authentication key. If it is input in a plain text form, the key is a character string not exceeding 16 characters. It will be displayed in a cipher text form in a length of 24 characters when display current-configuration command is executed. Inputting the MD5 key in a cipher text form with 24 characters is also supported. Description Using the vlink-peer command, you can create and configure a virtual link. Using the undo vlink-peer command, you can cancel an existing virtual link. RFC2328 states that an OSPF area must be connected to the backbone network. You can use vlink-peer command to set up this connectivity if an area does not have a direct connection to the backbone area. A virtual link can also be used to connect a discontiquous backbone. Virtual link can be regarded as a common interface that uses OSPF so that you can easily understand how to configure parameters such as hello, retransmit, and trans-delay. When configuring virtual link authentication, use the authentication-mode command to set the authentication type to MD5 cipher text or plain text on the backbone network. Related commands: authentication-mode, display ospf. Example To create a virtual link to 10.110.0.3, and use the MD5 cipher authentication mode, enter the following: system-view System View: return to User View with Ctrl+Z. [SW5500]router id 1.1.1.1 [SW5500]ospf [SW5500-ospf-1]area 10.0.0.0 [SW5500-ospf-1-area-10.0.0.0]vlink-peer 10.110.0.3 md5 3 345 IP Routing Policy Configuration Commands This section describes the commands you can use to configure IP Routing Policy. These commands operate across all routing protocols. When the Switch 5500 runs a routing protocol, it is able to perform the functions of a router. The term router in this section can refer either to a physical router or to the Switch 5500 running a routing protocol. apply cost Syntax apply cost value undo apply cost