3Com 3031 Command Reference Manual page 600

3com 3031: reference guide

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Using the area-authentication-mode command, you can configure IS-IS to

authenticate the received Level-1 routing information packets (LSP, CSNP and

PSNP), according to the pre-defined mode and password. Using the undo

area-authentication-mode command, you can configure IS-IS not to authenticate

the said packets.

In default configuration, the system will not authenticate the received Level-1

routing information packets, and there is no password. By using this command,

you can clear all the Level-1 routing packets, whose area authentication passwords

are not consistent with the one set via this command. At the same time, this

command will let IS-IS insert the area authentication password into all the Level-1

routing packets sent by this node, in a certain mode.

For the related commands, see reset isis all, domain-authentication-mode, and isis

authentication-mode.

Set the area authentication password as "hello" and the authentication type as

[3Com-isis] area-authentication-mode simple hello

cost-style { narrow | wide | compatible | narrow-compatible | wide-compatible } [

relax-spf-limit ]

narrow: Only receives/sends packets whose cost type is narrow.

wide: Only receives/sends packets whose cost type is wide.

compatible: Receives/sends packets whose cost type is narrow or wide.

narrow-compatible: Receives packets whose cost type is narrow or wide, but

only send packets whose cost type is narrow.

wide-compatible: Receives packets whose cost type is narrow or wide, but only

send packets whose cost type is wide.

relax-spf-metric: Permits to receive routes whose cost value is larger than 1024.

If this item is not set, the route whose metrics value is larger than 1024 will be

discarded. This setting is only valid for compatible, narrow-compatible, and

wide-compatible.

Using the cost-style command, you can set the cost type of an IS-IS packet

received/sent by the router. Using the undo cost-style command, you can restore

the default setting.

By default, IS-IS only receives/sends packets whose cost type is narrow.

For the related command, see isis cost.