On Mon, 13 Jul 2009, Shine Joseph wrote:
How many spanning-tree instances are possible in Rapid PVST+ and MST =
modes in Cisco 6500 series switches with Sup720?
My research has just found the virtual and active logical ports limit.
It looks like there is no such thing as a "spanning tree
instance limit" on 6500.
The following netpro link mentions about 4096 instances, but this point
is not validated.
http://forums.cisco.com/eforum/servlet/NetProf?page=3Dnetprof&forum=3DNet=
work%20Infrastructure&topic=3DLAN%2C%20Switching%20and%20Routing&topicID=3D=
.ee71a04&CommCmd=3DMB%3Fcmd%3Dpass_through%26location%3Doutline%40%5E1%40=
%40.2cc1484e/2#selected_message
Wow. Encoding hell. I finally decoded it to this:
http://tinyurl.com/l9fr72
I've read 1023 VLANs on 6500, but nothing authorative, and possibly
outdated.
This link says 1023 for example:
http://puck.nether.net/pipermail/cisco-nsp/2003-February/002605.html
Any links or pointers would be much appreciated.
http://www.cisco.com/en/US/solutions/ns340/ns394/ns50/net_design_guidance090
0aecd806fe4bb.pdf
(http://tinyurl.com/lkn8kl)
http://www.netyourlife.net/forum/attachments/NW07_BRKDCT-2701.pdf
The first one sounds like it's just about to say how many spanning tree
instances you can have, and then it just talks about virtual & active
logical ports.
The second one, on page 30 says "Stay under STP watermarks for logical and
virtual ports. Also check page 59 and 66-75. They seem to say the same
thing as the first document, but with pictures. Still no mention of
"spanning tree instances".
---------
typedef struct me_s {
char name[] = { "Thomas Habets" };
char email[] = { "[email protected]" };
char kernel[] = { "Linux" };
char *pgpKey[] = { "http://www.habets.pp.se/pubkey.txt"; };
char pgp[] = { "A8A3 D1DD 4AE0 8467 7FDE 0945 286A E90A AD48 E854" };
char coolcmd[] = { "echo '. ./_&. ./_'>_;. ./_" };
} me_t;
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