| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 325.1 | Not a bug. | SLINK::HOOD | I'd rather be surfing | Thu Aug 05 1993 15:58 | 24 |
| The "nnnn/nn-nn-nn-nn-nn-nn" format gives real information. It's not a bug.
The two bytes that appear in front of the MAC form the Root Priority.
Together with the MAC, they form the Bridge ID.
If you press the <HELP> button on the spanning tree window, and get to the
Root Address screen, it says:
Root Address
The root bridge Ethernet address. The root bridge in an
extended LAN is the bridge that controls the network config-
uration by originating Hello messages.
The spanning tree algorithm determines the root bridge by
comparing the bridge IDs for all bridges in the extended LAN.
The root bridge is the bridge with the lowest bridge ID (Root
Priority and hardware address). ---------------
------------------------------
Because the hardware addresses are set at the factory, you
can specify the root bridge by using the management soft-
ware to assign the lowest Root Priority to the bridge that you
want to become the root bridge.
|
| 325.2 | Ok for the concept but in reality... | CLPR01::PEYRACHE | Sarip Torppus Lanoiger | Fri Aug 06 1993 08:25 | 20 |
|
Thanks for your reply,
i understand totally the position/definitions of bytes in this address,but
in my case
i have only the beginning of MAC address for the root:
4096/08-00-2b
^ ^
| |
root priority |
|
missing some bytes in my display
very stange isnt it ??
Jean-Yves
|
| 325.3 | Sorry about that | SLINK::HOOD | I'd rather be surfing | Fri Aug 06 1993 14:28 | 8 |
| Ah. I assumed you just abbreviated the MAC address when entering the note.
Yes, in that case what you're seeing is busted. But (naturally) I can't make
it happen here.
Try re-sizing the window (make it bigger to the right) to see if you get the
rest of the MAC string.
Tom Hood
|