Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring RSTP (Rev. 03)
Rapid Spanning Tree Protocol (RSTP)
© 2008 Foundry Networks, Inc.
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01/01/01 128 Designat frwrd 40000 400000 32768.0012F2010101 128.01 2
01/01/03 128 Designat frwrd 200000 400000 32768.0012F2010101 128.03 1
01/01/04 128 Designat frwrd 200000 400000 32768.0012F2010101 128.04 1
01/01/20 128 Altern discr 200000 200000 32768.0012F2112990 128.20 1
01/01/21 128 Root frwrd 200000 200000 32768.0012F2112990 064.21 3
Debugging RSTP
Table 11
lists the RSTP debugging commands.
Table 11: RSTP Debugging Commands
Command
Description
debug rstp
Enables displaying RSTP-related debug information.
show debug rstp
Displays the status of Rapid Spanning Tree protocol (RSTP) debugging.
Enabling RSTP Debug Information
The
debug rstp
command, in Privileged (Enable) mode, enables the display of RSTP-related
debug information. The
no
form of this command disables the display of RSTP-related debug
information.
The RSTP debug commands will not be saved after reload.
An example of the debug output after link failure is:
tSpanRecv: 1993/01/01 04:11:03 : link down on port 1/1/12
0xa1391880 (tSpanPRS):
0xa1391880 (tSpanPRS): Select-Port-Roles
0xa1391880 (tSpanPRS):
=================
0xa1391880 (tSpanPRS):
0xa1391880 (tSpanPRS): Port 1/1/9 Is DesignatedPort
0xa1391880 (tSpanPRS):
0xa1391880 (tSpanPRS):
0xa1391880 (tSpanPRS): End-Roles-Selection
tSpanRecv: 1993/01/01 04:11:06 : link up on port 1/1/12
0xa1391880 (tSpanPRS):
0xa1391880 (tSpanPRS): Select-Port-Roles
0xa1391880 (tSpanPRS):
=================
0xa1391880 (tSpanPRS):
0xa1391880 (tSpanPRS): Port 1/1/9 Is DesignatedPort
0xa1391880 (tSpanPRS): Port 1/1/12 Is DesignatedPort
0xa1391880 (tSpanPRS):
0xa1391880 (tSpanPRS):
0xa1391880 (tSpanPRS): End-Roles-Selection