This supportwiki article<http://supportwiki.cisco.com/ViewWiki/index.php/The_%22PM-SP-4-LIMITS:%22_or_%22PM-SP-STDBY-4-LIMITS:%22_error_message_is_received_in_Catalyst_switches_that_run_Cisco_IOS_Software>could be what you're looking for. I confirm the 1800 instances/slot limit.
-Nicolas 2009/7/12 Shine Joseph <[email protected]> > Hi, > > I searched in the archives if I could find the answer to my this query. = > The result was negative. > > How many spanning-tree instances are possible in Rapid PVST+ and MST = > modes in Cisco 6500 series switches with Sup720? > > The only documentation that I could see which says about total number of = > virtual ports per line card and total active logical ports. There is no = > reference to number of instances. > > 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=<http://forums.cisco.com/eforum/servlet/NetProf?page=3Dnetprof&forum=3DNet=%0Awork%20Infrastructure&topic=3DLAN%2C%20Switching%20and%20Routing&topicID=3D=%0A.ee71a04&CommCmd=3DMB%3Fcmd%3Dpass_through%26location%3Doutline%40%5E1%40=> > %40.2cc1484e/2#selected_message > > Any links or pointers would be much appreciated. > > Thanks in advance, > Shine > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
