3Com Router 3031, Command Reference Manual

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600 C
HAPTER
6: R
OUTING
P
ROTOCOL
Description
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.
Example
Set the area authentication password as "hello" and the authentication type as
simple.
[3Com] isis
[3Com-isis] area-authentication-mode simple hello
cost-style
Syntax
cost-style { narrow | wide | compatible | narrow-compatible | wide-compatible } [
relax-spf-limit ]
View
IS-IS view
Parameter
■
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.
Description
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.