ISIS路由cost-style 特点

小乔

narrow：接收或发送cost类型为narrow的报文。

wide：接收或发送cost类型为wide的报文。

wide-compatible：可以接收cost类型为narrow和wide的报文，但却只发送wide的报文。

compatible：可以接收或发送cost类型为narrow和wide的报文。

narrow-compatible：可以接收cost类型为narrow和wide的报文，但却只发送narrow的报文。

注：narrow模式cost的取值范围<1-63>；wide模式cost的取值范围<1-16777215>

style	接受何种cost	发送何种cost	接受何种TLV(不同)	发送何种TLV（不同）
Narrow	Narrow	Narrow	Neighbour 2 IPv4 internal 128 IPv4 external 130	Neighbour 2 IPv4 internal 128 IPv4 external 130
Wide	Wide	Wide	Extended Nbr 22 IPv4 extended 135	Extended Nbr 22 IPv4 extended 135
Compatible	Narrow Wide	Narrow Wide	Neighbour 2 IPv4 internal 128 IPv4 external 130 Extended Nbr 22 IPv4 extended 135	Neighbour 2 IPv4 internal 128 IPv4 external 130 Extended Nbr 22 IPv4 extended 135
Narrow-compatible	Narrow Wide	Narrow	Neighbour 2 IPv4 internal 128 IPv4 external 130 Extended Nbr 22 IPv4 extended 135	Neighbour 2 IPv4 internal 128 IPv4 external 130
Wide-compatible	Narrow Wide	Wide	Neighbour 2 IPv4 internal 128 IPv4 external 130 Extended Nbr 22 IPv4 extended 135	Extended Nbr 22 IPv4 extended 135

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