From: Jim Phillipo (jim.phillipo@guardent.com)
Date: Mon Jul 07 2003 - 11:50:30 GMT-3
This is from the 3550 DOC's
It does not seem correct. I have 2 3550's and setting the port-priority
lower on the port that is blocking does not cause it to become root port .
Am I misreading this ?
<http://www.cisco.com/univercd/illus/4/68/43568.gif>
wp1020080When the spanning-tree topology is calculated based on default
parameters, the path between source and destination end stations in a
switched network might not be ideal. For instance, connecting higher-speed
links to an interface that has a higher number than the root port can cause
a root-port change. The goal is to make the fastest link the root port.
wp1020081For example, assume that one port on Switch B is a Gigabit Ethernet
link and that another port on Switch B (a 10/100 link) is the root port.
Network traffic might be more efficient over the Gigabit Ethernet link. By
changing the spanning-tree port priority on the Gigabit Ethernet interface
to a higher priority (lower numerical value) than the root port, the Gigabit
Ethernet interface becomes the new root port.
Jim Phillipo, CCNP, CCDP
Sr. Internetworking Engineer
W: 401.456.1821 F: 401.456.0599 M: 508.982.8923
90 Royal Little Drive, Providence, RI 02904
www.guardent.com
This archive was generated by hypermail 2.1.4 : Wed Aug 06 2003 - 06:52:27 GMT-3
