Comments on: CCNP BCMSN(642-812) Lab – STP(New)

By: Boy_Racer

Boy_Racer — Sun, 20 Sep 2009 17:30:09 +0000

Some excellent notes on manipulating spanning tree can be found here:
http://www.digivill.net/~binary/ccie/ccie-notes/spanning-tree-notes

By: Boy_Racer

Boy_Racer — Sun, 20 Sep 2009 15:04:22 +0000

…note that a lower numerical number is actually a preferred one so the lower the port-priority number, the more likely it is to become a forwarding port.

By: Boy_Racer

Boy_Racer — Sun, 20 Sep 2009 15:02:49 +0000

CiscoSky’s example should also works as it is the same principle in terms of adusting port-priority. The original example LOWERS the port-priority of g1/0/6 so that the device at the other end favours that interface for forwarding traffic. CiscoSky’s example does the inverse and INCREASES the priority on g1/0/5 so that the device at the end does NOT favour that interface and instead will use g1/0/6 to forward traffic.

By: juannel1

juannel1 — Fri, 04 Sep 2009 13:22:03 +0000

This lab seems to be prominent in the composite. I tried these commands and it did not work. The only thing I missed was the “no shut”
The interfaces are already active, why do you require the “no shut”

By: Boy_Racer

Boy_Racer — Wed, 05 Aug 2009 20:51:49 +0000

I havent taken this test yet so not sure if it will help but this is the latest supported command to replace copy run start:

copy system:running-config nvram:start-up config

By: juan.urti

juan.urti — Wed, 29 Jul 2009 00:58:48 +0000

Tips from this page. Switching section

*Influencing local Root Port election – change the Port Cost.

*Influencing the Root Port of directly connected downstream switch – change the Port Priority.

By: juan.urti

juan.urti — Wed, 29 Jul 2009 00:45:20 +0000

in my test, i resolve the lab with the commands port-priority and spanning-tree vlan 20 priority N.

Although i think kachy’s answer is best for the lab.

Sorry for my english.

By: juan.urti

juan.urti — Wed, 29 Jul 2009 00:42:17 +0000

Yes, i had the same problem about the command *copy run start*.

My teacher say me, *the correct command is copy system:running-config nvram:start-up config*

i fail in my first test, i got 800/803!!!!!