Brocade FastIron SX, FCX, and ICX Diagnostic Reference User Manual
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Brocade FastIron SX, FCX, and ICX Diagnostic Reference
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MCT debug commands
3
CLUSTER Config debugging is :OFF
CLUSTER FSM debugging is :OFF
CLUSTER MDUP debugging is :ON
CLUSTER interface mac debugging is :OFF
CLUSTER Forwarding debugging is :OFF
CLUSTER STP debugging is :OFF
CLUSTER BPDU forwarding debugging is :OFF
CLUSTER CCP debugging is :OFF
debug cluster stp
Syntax: [no] debug cluster stp
This command enables debugging of STP and RSTP modules. The output details how the STP
registers the ICL or CCEP ports. Changes occur while supporting MCT on STP, such as ICL guard,
CCEP state sync, STP and CCP messages, and topology change messages are tracked. Command
output resembles the following example.
Brocade# debug cluster stp
CLUSTER STP debugging is now ON
Brocade(config-vlan-101)# spanning-tree 802-1w
STP -> INIT STP for bridge, vlan 10. Port mask 194 201 204 1168 1170 1173 to 1174
2000 2147 to 2149 2154 2157 2185 2187 to 2188 2192 to 2193 2195 to 2196 2201 2205
2368 to 2369 2371 to 2372 2377 2381 2387 to 2389 2394 2397 2425 2427 to 2428
Startup:: In initialize_bridge_spanning_tree::MCT enabled on this VLAN 101
Startup:: In initialize_bridge_spanning_tree:: MCT enabled Clearing ICL port
Searching for ICL and CCEP for this VLAN/STP
stputil_discover_mct:: ICL port is 4/3
Initialize Port 4/3. vlan 101
initialize_port(T=173641): icl-port guard timer cleared on port 4/3, VLAN 101
initialize_port:: Set ICL to FORWARDING. Vlan 101 port 4/3
Searching for ICL and CCEP for this VLAN/STP
Initialize Port 4/10. vlan 101
initialize_port(T=173641): icl-port guard timer cleared on port 4/10, VLAN 101
initialize_port:: Port is neither ICL/ CCEP of Root Bridge. Set to BLOCKING. Vlan
101 port 4/10
Searching for ICL and CCEP for this VLAN/STP
stputil_discover_mct::This is CCEP port 4/13
Initialize Port 4/13. vlan 101
initialize_port(T=173641): icl-port guard timer cleared on port 4/13, VLAN 101
initialize_port:: Set CCEP or root bridge to FORWARDING. Vlan 101 port 4/13
stputil_mct_send_ccep_state_to_peer(T=173641,vlan=101,port=204,state=FORWARDING)
stputil_mct_send_ccep_state_to_peer(T=173641,vlan=101,port=204,state=FORWARDING)
primary_port 4/13 -->
stputil_mct_send_ccep_state_to_peer(T=173641,vlan=101,port=204,state=FORWARDING)
primary_port 4/13 done
rstp_setup_this_bridge_values:: mct_enable = TRUE
rstputil_mct_enable_port.vlan 101 port 4/3