4-4Parametersmd5: Specifies the MD5 ciphertext authentication mode.simple: Specifies the simple authentication mode.DescriptionUse the authentication-mode command to specify an authentication mode for the OSPF area.Use the undo authentication-mode command to remove the authentication mode.By default, no authentication mode is configured for an OSPF area.Routers that reside in the same area must have the same authentication mode: non-authentication,simple, or MD5.Related commands: ospf authentication-mode.Examples# Configure OSPF area 0 to use the MD5 ciphertext authentication mode. system-view[Sysname] ospf 100[Sysname-ospf-100] area 0[Sysname-ospf-100-area-0.0.0.0] authentication-mode md5bandwidth-reference (OSPF view)Syntaxbandwidth-reference valueundo bandwidth-referenceViewOSPF viewDefault Level2: System levelParametersvalue: Bandwidth reference value for link cost calculation, in the range 1 to 2147483648 Mbps.DescriptionUse the bandwidth-reference command to specify a reference bandwidth value for link costcalculation.Use the undo bandwidth-reference command to restore the default value.The default value is 100 Mbps.When links have no cost values configured, OSPF calculates their cost values using formula:Cost=Reference bandwidth value / Link bandwidth. If the calculated cost is greater than 65535, thevalue of 65535 is used.Examples# Specify the reference bandwidth value as 1000 Mbps. system-view[Sysname] ospf 100[Sysname-ospf-100] bandwidth-reference 1000
