Rapid Spanning Tree Protocol - Cost question...
Freejole
Member Posts: 30 ■□□□□□□□□□
in CCNA & CCENT
Working through some examples and came across a question here....
If Switch A and Switch B are connected such that the the FASTETHERNET port on Switch A is connected to a GIGABIT ETHERNET port on Switch B, I would have to imagine that the cost for that link would default to the lower bandwidth of the fastethernet port and the link would be advertised as a cost of 19 to RSTP for port selection right?
Thanks!
If Switch A and Switch B are connected such that the the FASTETHERNET port on Switch A is connected to a GIGABIT ETHERNET port on Switch B, I would have to imagine that the cost for that link would default to the lower bandwidth of the fastethernet port and the link would be advertised as a cost of 19 to RSTP for port selection right?
Thanks!
Comments
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jboogie81
Member Posts: 29 ■■□□□□□□□□
Yep, the speed used for cost is the "actual" operating speed of the link and not the maximum capable speed of the port.
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ccnpninja
Member Posts: 1,010 ■■■□□□□□□□
Pay attention that we refer to the cost of an interface (port cost) and the cost of a switching path (root path cost). Saying "cost of a link" is misleading I think.my blog:https://keyboardbanger.com