STP Logical ports count calculations.

Good day!
As it stays in Cisco docs STP logical ports number is calculated by formula:
Sum [(Each trunk on the switch) * (Active VLANs on each trunk)] + (Number of
nontrunking interfaces on the switch)
And this number can be checked by issuing command
show spanning-tree summary total
And i didnt find out any remarks that this number calculated differently for RSTP and MST, so i assume that calculations process is the same.
I tried to check this number on my equipment and was a bit surpised with results:
R1#show spanning-tree summary totals
Switch is in mst mode (IEEE Standard)
Root bridge for: none
EtherChannel misconfig guard            is enabled
Extended system ID                      is enabled
Portfast Default                        is disabled
Portfast Edge BPDU Guard Default        is disabled
Portfast Edge BPDU Filter Default       is disabled
Loopguard Default                       is disabled
Platform PVST Simulation                is enabled
PVST Simulation                         is enabled
Bridge Assurance                        is enabled
UplinkFast                              is disabled
BackboneFast                            is disabled
Pathcost method used                    is long
Name                   Blocking Listening Learning Forwarding STP Active
2 msts                       0         0        0         24         24
Hm.. only 24 logical ports but lets check number of trunks in system and vlans that spans over those trunks:
R1#show interfaces trunk
-----Omitted for brevity----
Port                Vlans allowed and active in management domain
Po30                5,97,99,111,165,202,212-213,401-406,1521-1539,1600-1604
Po31                97,165,401,405-406,1600
Po41                1521-1539
Po52                99,111,202,212-213,401,403-404
Po70                97,165,401,405-406,1600
Po71                97,165,200,401,405-406
Po100               97,1603
Po101               97,165,401,405-406,1600
Po102               97,165,401,405-406,1600
-----Omitted for brevity----
So according to logical port definition only Po41 must have more STP logical ports than i got in ouput of show spanning-tree summary total command.
Can somebody clarify this?

Good day.
Sry, but i dint understand what mean "excluding logical vlans". You mean reserved vlans:
1002 fddi-default                     act/unsup
1003 token-ring-default               act/unsup
1004 fddinet-default                  act/unsup
1005 trnet-default                    act/unsup
If yes, than I have 40 vlans except those.
Besides i can get you formula 11 vlans + 9 PC. As i addused the formula according to Cisco docs is:
Sum [(Each trunk on the switch) * (Active VLANs on each trunk)] + (Number of
nontrunking interfaces on the switch)

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Kind regards,
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Hi Rene,
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In the SAP-Help from NetWeaver 2004s I found the following hint:
http://help.sap.com/saphelp_nw04/helpdata/en/9f/c487d701c7214db8ca7a741ba3c9d0/frameset.htm
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http://help.sap.com/saphelp_nw04/helpdata/en/9f/c487d701c7214db8ca7a741ba3c9d0/frameset.htm
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You can include below method in your code and call it.
private void UpdateConfig(string key, string value, string fileName)
var cFile = ConfigurationManager.OpenExeConfiguration(fileName);
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Here fileName is the full path + application name (eg: c:\project\WinApp.exe)
Adnan Amin MCT, SharePoint Architect | If you find this post useful kindly please mark it as an answer :)

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~ Ramanath.

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Hi,
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jitendra

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I have created a logical port manually to connect to SAP CRM cloud system. But when I ping the web service I am getting below error. Please let me know how to solve this error.
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That will do for R/3.
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