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Konfig Switch 1 und Spantree-Information im fehlerfreien Betrieb :
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#
create vlan "vlan11"
create vlan "vlan12"
create vlan "vlan13"
create vlan "vlan14"
create stpd s11
create stpd s12
create stpd s13
create stpd s14
#
# Config information for VLAN vlan11.
configure vlan "vlan11" tag 11
configure stpd s11 add vlan "vlan11"
configure vlan "vlan11" ipaddress 1.1.11.1 255.255.255.0
configure vlan "vlan11" add port 1 tagged
configure vlan "vlan11" add port 17 tagged
configure vlan "vlan11" add port 48 tagged
#
# Config information for VLAN vla n12.
configure vlan "vlan12" tag 12
configure stpd s12 add vlan "vlan12"
configure vlan "vlan12" ipaddress 1.1.12.1 255.255.255.0
configure vlan "vlan12" add port 1 tagged
configure vlan "vlan12" add port 17 tagged
configure vlan "vlan12" add port 48 tagged
#
# Config information for VLAN vlan13.
configure vlan "vlan13" tag 13
configure stpd s13 add vlan "vlan13"
configure vlan "vlan13" ipaddress 1.1.13.1 255.255.255.0
configure vlan "vlan13" add port 1 tagged
configure vlan "vlan13" add port 17 tagged
configure vlan "vlan13" add port 48 tagged
#
# Config information for VLAN vl an14.
configure vlan "vlan14" tag 14
configure stpd s14 add vlan "vlan14"
configure vlan "vlan14" ipaddress 1.1.14.1 255.255.255.0
configure vlan "vlan14" add port 1 tagged
configure vlan "vlan14" add port 17 tagged
configure vlan "vlan14" add port 48 tagged
#
# Spanning tree information
configure stpd s11 priority 0
configure stpd s11 tag 11
configure stpd s11 port mode pvst-plus 1
configure stpd s11 port mode pvst-plus 17
configure stpd s11 port mode pvst-plus 48
enable stpd s11
configure stpd s12 priority 12288
configure stpd s12 tag 12
configure stpd s12 port mode pvst-plus 1
configure stpd s12 port mode pvst-plus 17
configure stpd s12 port mode pvst-plus 48
enable stpd s12
configure stpd s13 priority 8192
configure stpd s13 tag 13
configure stpd s13 port mode pvst-plus 1
configure stpd s13 port mode pvst-plus 17
configure stpd s13 port mode pvst-plus 48
enable stpd s13
configure stpd s14 priority 4096
configure stpd s14 tag 14
configure stpd s14 port mode pvst-plus 1
configure stpd s14 port mode pvst-plus 17
configure stpd s14 port mode pvst-plus 48
enable stpd s14
#
#
Summit48si:92 # sh stpd s11
Stpd: s11 Stp: ENABLED Number of Ports: 3
Rapid Root Failover: Disabled
802.1Q Tag: 11
Ports: 1,17,48
Active Vlans: vlan11
Bridge Priority: 0
BridgeID: 00:00:00:04:96:03:89:90
Designated root: 00:00:00:04:96:03:89:90
RootPathCost: 0 Root Port: ----
MaxAge: 20s HelloTime: 2s ForwardDelay: 15s
CfgBrMaxAge: 20s CfgBrHelloTime: 2s CfgBrForwardDelay: 15s
Topology Change Time: 35s Hold time: 1s
Topology Change Detected: FALSE Topology Change: FALSE
Number of Topology Changes: 7
Time Since Last Topology Change: 717s
#
#
Summit48si:93 # sh stpd s12
Stpd: s12 Stp: ENABLED Number of Ports: 3
Rapid Root Failover: Disabled
802.1Q Tag: 12
Ports: 1,17,48
Active Vlans: vlan12
Bridge Priority: 12288
BridgeID: 30:00:00:04:96:03:89:90
Designated root: 00:00:00:04:96:15:fe:e0
RootPathCost: 19 Root Port: 48
MaxAge: 20s HelloTime: 2s ForwardDelay: 15s
CfgBrMaxAge: 20s CfgBrHelloTime: 2s CfgBrForwardDelay: 15s
Topology Change Time: 35s Hold time: 1s
Topology Change Detected: FALSE Topology Change: FALSE
Number of Topology Changes: 8
Time Since Last Topology Change: 460s
#
#
Summit48si:94 # sh stpd s13
Stpd: s13 Stp: ENABLED Number of Ports: 3
Rapid Root Failover: Disabled
802.1Q Tag: 13
Ports: 1,17,48
Active Vlans: vlan13
Bridge Priority: 8192
BridgeID: 20:00:00:04:96:03:89:90
Designated root: 00:0d:00:12:7f:b5:6e:00
RootPathCost: 19 Root Port: 1
MaxAge: 20s HelloTime: 2s ForwardDelay: 15s
CfgBrMaxAge: 20s CfgBrHelloTime: 2s CfgBrForwardDelay: 15s
Topology Change Time: 35s Hold time: 1s
Topology Change Detected: FALSE Topology Change: FALSE
Number of Topology Changes: 7
Time Since Last Topology Change: 718s
#
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Konfig Switch 2 und Spantree-Information im fehlerfreien Betrieb :
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#
create vlan "vlan11"
create vlan "vlan12"
create vlan "vlan13"
create vlan "vlan14"
create stpd s11
create stpd s12
create stpd s13
create stpd s14
#
# Config information for VLAN vlan11.
configure vlan "vlan11" tag 11
configure stpd s11 add vlan "vlan11"
configure vlan "vlan11" ipaddress 1.1.11.2 255.255.255.0
configure vlan "vlan11" add port 1 tagged
configure vlan "vlan11" add port 17 tagged
configure vlan "vlan11" add port 48 tagged
#
# Config information for VLAN vlan12.
configure vlan "vlan12" tag 12
configure stpd s12 add vlan "vlan12"
configure vlan "vlan12" ipaddress 1.1.12.2 255.255.255.0
configure vlan "vlan12" add port 1 tagged
configure vlan "vlan12" add port 17 tagged
configure vlan "vlan12" add port 48 tagged
#
# Config information for VLAN vlan13.
configure vlan "vlan13" tag 13
configure stpd s13 add vlan "vlan13"
configure vlan "vlan13" ipaddress 1.1.13.2 255.255.255.0
configure vlan "vlan13" add port 1 tagged
configure vlan "vlan13" add port 17 tagged
configure vlan "vlan13" add port 48 tagged
#
# Config information for VLAN vlan14.
configure vlan "vlan14" tag 14
configure stpd s14 add vlan "vlan14"
configure vlan "vlan14" ipaddress 1.1.14.2 255.255.255.0
configure vlan "vlan14" add port 1 tagged
configure vlan "vlan14" add port 17 tagged
configure vlan "vlan14" add port 48 tagged
#
# Spanning tree information
configure stpd s11 priority 4096
configure stpd s11 tag 11
configure stpd s11 port mode pvst-plus 1
configure stpd s11 port mode pvst-plus 17
configure stpd s11 port mode pvst-plus 48
enable stpd s11
configure stpd s12 priority 0
configure stpd s12 tag 12
configure stpd s12 port mode pvst-plus 1
configure stpd s12 port mode pvst-plus 17
configure stpd s12 port mode pvst-plus 48
enable stpd s12
configure stpd s13 priority 12288
configure stpd s13 tag 13
configure stpd s13 port mode pvst-plus 1
configure stpd s13 port mode pvst-plus 17
configure stpd s13 port mode pvst-plus 48
enable stpd s13
configure stpd s14 priority 8192
configure stpd s14 tag 14
configure stpd s14 port mode pvst-plus 1
configure stpd s14 port mode pvst-plus 17
configure stpd s14 port mode pvst-plus 48
enable stpd s14
#
#
Summit48si:7 # sh stpd s12
Stpd: s12 Stp: ENABLED Number of Ports: 3
Rapid Root Failover: Disabled
Operational Mode: 802.1D
802.1Q Tag: 12
Ports: 1,17,48
Active Vlans: vlan12
Bridge Priority: 0
BridgeID: 00:00:00:04:96:15:fe:e0
Designated root: 00:00:00:04:96:15:fe:e0
RootPathCost: 0 Root Port: ----
MaxAge: 20s HelloTime: 2s ForwardDelay: 15s
CfgBrMaxAge: 20s CfgBrHelloTime: 2s CfgBrForwardDelay: 15s
Topology Change Time: 35s Hold time: 1s
Topology Change Detected: FALSE Topology Change: FALSE
Number of Topology Changes: 2
Time Since Last Topology Change: 394s
#
Summit48si:8 # sh stpd s13
Stpd: s13 Stp: ENABLED Number of Ports: 3
Rapid Root Failover: Disabled
Operational Mode: 802.1D
802.1Q Tag: 13
Ports: 1,17,48
Active Vlans: vlan13
Bridge Priority: 12288
BridgeID: 30:00:00:04:96:15:fe:e0
Designated root: 00:0d:00:12:7f:b5:6e:00
RootPathCost: 19 Root Port: 17
MaxAge: 20s HelloTime: 2s ForwardDelay: 15s
CfgBrMaxAge: 20s CfgBrHelloTime: 2s CfgBrForwardDelay: 15s
Topology Change Time: 35s Hold time: 1s
Topology Change Detected: FALSE Topology Change: FALSE
Number of Topology Changes: 1
Time Since Last Topology Change: 653s
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Konfig Switch 3 und Spantree-Information im fehlerfreien Betrieb :
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!
spanning-tree mode pvst
spanning-tree extend system-id
spanning-tree vlan 11 priority 8192
spanning-tree vlan 12 priority 4096
spanning-tree vlan 13 priority 0
spanning-tree vlan 14 priority 12288
!
vlan 11
name vlan_a
!
vlan 12
name vlan_b
!
vlan 13
name vlan_c
!
vlan 14
name vlan_d
!
!
interface GigabitEthernet1/0/1
description zu switch1
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/0/13
description zu switch2
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/0/24
description zu Switch4
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Vlan11
description vlan_a
ip address 1.1.11.3 255.255.255.0
!
interface Vlan12
description vlan_b
ip address 1.1.12.3 255.255.255.0
!
interface Vlan13
description vlan_c
ip address 1.1.13.3 255.255.255.0
!
interface Vlan14
description vlan_d
ip address 1.1.14.3 255.255.255.0
!
!
SWITCH_3#sh span det
VLAN0001 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, sysid 1, address 0012.7fb5.6e00
Configured hello time 2, max age 20, forward delay 15
Current root has priority 32769, address 0012.7fb4.f300
Root port is 24 (GigabitEthernet1/0/24), cost of root path is 4
Topology change flag not set, detected flag not set
Number of topology changes 11 last change occurred 00:06:30 ago
from GigabitEthernet1/0/13
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0001 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 32769, address 0012.7fb4.f300
Designated bridge has priority 32769, address 0012.7fb5.6e00
Designated port id is 128.1, designated path cost 4
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 127178, received 0
Port 13 (GigabitEthernet1/0/13) of VLAN0001 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 32769, address 0012.7fb4.f300
Designated bridge has priority 32769, address 0012.7fb5.6e00
Designated port id is 128.13, designated path cost 4
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 211, received 0
Port 24 (GigabitEthernet1/0/24) of VLAN0001 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 32769, address 0012.7fb4.f300
Designated bridge has priority 32769, address 0012.7fb4.f300
Designated port id is 128.24, designated path cost 0
Timers: message age 2, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 4, received 126356
VLAN0010 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, sysid 10, address 0012.7fb5.6e00
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree
Topology change flag not set, detected flag not set
Number of topology changes 7 last change occurred 00:06:32 ago
from GigabitEthernet1/0/13
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 1, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0010 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 32778, address 0012.7fb5.6e00
Designated bridge has priority 32778, address 0012.7fb5.6e00
Designated port id is 128.1, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 127149, received 0
Port 13 (GigabitEthernet1/0/13) of VLAN0010 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 32778, address 0012.7fb5.6e00
Designated bridge has priority 32778, address 0012.7fb5.6e00
Designated port id is 128.13, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 211, received 0
Port 24 (GigabitEthernet1/0/24) of VLAN0010 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 32778, address 0012.7fb5.6e00
Designated bridge has priority 32778, address 0012.7fb5.6e00
Designated port id is 128.24, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 126354, received 0
VLAN0011 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 8192, sysid 11, address 0012.7fb5.6e00
Configured hello time 2, max age 20, forward delay 15
Current root has priority 0, address 0004.9603.8990
Root port is 1 (GigabitEthernet1/0/1), cost of root path is 19
Topology change flag not set, detected flag not set
Number of topology changes 11 last change occurred 2d22h ago
from GigabitEthernet1/0/24
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0011 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 0, address 0004.9603.8990
Designated bridge has priority 0, address 0004.9603.8990
Designated port id is 64.1, designated path cost 0
Timers: message age 2, forward delay 0, hold 0
Number of transitions to forwarding state: 2
Link type is point-to-point by default
BPDU: sent 16, received 127463
Port 13 (GigabitEthernet1/0/13) of VLAN0011 is blocking
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 0, address 0004.9603.8990
Designated bridge has priority 4096, address 0004.9615.fee0
Designated port id is 64.17, designated path cost 19
Timers: message age 3, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 1, received 215
Port 24 (GigabitEthernet1/0/24) of VLAN0011 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 0, address 0004.9603.8990
Designated bridge has priority 8203, address 0012.7fb5.6e00
Designated port id is 128.24, designated path cost 19
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 126667, received 1
VLAN0012 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 4096, sysid 12, address 0012.7fb5.6e00
Configured hello time 2, max age 20, forward delay 15
Current root has priority 0, address 0004.9615.fee0
Root port is 13 (GigabitEthernet1/0/13), cost of root path is 19
Topology change flag not set, detected flag not set
Number of topology changes 14 last change occurred 00:02:22 ago
from GigabitEthernet1/0/1
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0012 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 0, address 0004.9615.fee0
Designated bridge has priority 4108, address 0012.7fb5.6e00
Designated port id is 128.1, designated path cost 19
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 3
Link type is point-to-point by default
BPDU: sent 214, received 127281
Port 13 (GigabitEthernet1/0/13) of VLAN0012 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 0, address 0004.9615.fee0
Designated bridge has priority 0, address 0004.9615.fee0
Designated port id is 64.17, designated path cost 0
Timers: message age 1, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 3, received 218
Port 24 (GigabitEthernet1/0/24) of VLAN0012 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 0, address 0004.9615.fee0
Designated bridge has priority 4108, address 0012.7fb5.6e00
Designated port id is 128.24, designated path cost 19
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 126674, received 12
VLAN0013 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 0, sysid 13, address 0012.7fb5.6e00
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree
Topology change flag not set, detected flag not set
Number of topology changes 9 last change occurred 00:06:42 ago
from GigabitEthernet1/0/1
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 1, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0013 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 13, address 0012.7fb5.6e00
Designated bridge has priority 13, address 0012.7fb5.6e00
Designated port id is 128.1, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 127161, received 9
Port 13 (GigabitEthernet1/0/13) of VLAN0013 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 13, address 0012.7fb5.6e00
Designated bridge has priority 13, address 0012.7fb5.6e00
Designated port id is 128.13, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 214, received 0
Port 24 (GigabitEthernet1/0/24) of VLAN0013 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 13, address 0012.7fb5.6e00
Designated bridge has priority 13, address 0012.7fb5.6e00
Designated port id is 128.24, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 126361, received 4
VLAN0014 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 12288, sysid 14, address 0012.7fb5.6e00
Configured hello time 2, max age 20, forward delay 15
Current root has priority 14, address 0012.7fb4.f300
Root port is 24 (GigabitEthernet1/0/24), cost of root path is 4
Topology change flag not set, detected flag not set
Number of topology changes 13 last change occurred 00:06:43 ago
from GigabitEthernet1/0/13
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0014 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 14, address 0012.7fb4.f300
Designated bridge has priority 12302, address 0012.7fb5.6e00
Designated port id is 128.1, designated path cost 4
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 2
Link type is point-to-point by default
BPDU: sent 127104, received 66
Port 13 (GigabitEthernet1/0/13) of VLAN0014 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 14, address 0012.7fb4.f300
Designated bridge has priority 12302, address 0012.7fb5.6e00
Designated port id is 128.13, designated path cost 4
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 218, received 1
Port 24 (GigabitEthernet1/0/24) of VLAN0014 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 14, address 0012.7fb4.f300
Designated bridge has priority 14, address 0012.7fb4.f300
Designated port id is 128.24, designated path cost 0
Timers: message age 1, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 4, received 126363
VLAN0020 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, sysid 20, address 0012.7fb5.6e00
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree
Topology change flag not set, detected flag not set
Number of topology changes 7 last change occurred 00:06:46 ago
from GigabitEthernet1/0/13
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 1, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0020 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 32788, address 0012.7fb5.6e00
Designated bridge has priority 32788, address 0012.7fb5.6e00
Designated port id is 128.1, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 127156, received 0
Port 13 (GigabitEthernet1/0/13) of VLAN0020 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 32788, address 0012.7fb5.6e00
Designated bridge has priority 32788, address 0012.7fb5.6e00
Designated port id is 128.13, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 218, received 0
Port 24 (GigabitEthernet1/0/24) of VLAN0020 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 32788, address 0012.7fb5.6e00
Designated bridge has priority 32788, address 0012.7fb5.6e00
Designated port id is 128.24, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 126361, received 0
SWITCH_3#
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Konfig Switch 4 und Spantree-Information im fehlerfreien Betrieb :
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!
spanning-tree mode pvst
spanning-tree extend system-id
spanning-tree vlan 11 priority 12288
spanning-tree vlan 12 priority 8192
spanning-tree vlan 13 priority 4096
spanning-tree vlan 14 priority 0
!
vlan 11
name vlan_a
!
vlan 12
name vlan_b
!
vlan 13
name vlan_c
!
vlan 14
name vlan_d
!
!
interface GigabitEthernet1/0/1
description zu switch 2
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/0/13
description zu Switch 1
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/0/24
description zu switch 3
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Vlan11
description vlan_a
ip address 1.1.11.4 255.255.255.0
!
interface Vlan12
description vlan_b
ip address 1.1.12.4 255.255.255.0
!
interface Vlan13
description vlan_c
ip address 1.1.13.4 255.255.255.0
!
interface Vlan14
description vlan_d
ip address 1.1.14.4 255.255.255.0
!
!
SWITCH_4#sh span summ
Switch is in pvst mode
Root bridge for: VLAN0001, VLAN0014
EtherChannel misconfig guard is enabled
Extended system ID is enabled
Portfast Default is disabled
PortFast BPDU Guard Default is disabled
Portfast BPDU Filter Default is disabled
Loopguard Default is disabled
UplinkFast is disabled
BackboneFast is disabled
Configured Pathcost method used is short
Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0001 0 0 0 3 3
VLAN0011 2 0 0 1 3
VLAN0012 2 0 0 1 3
VLAN0013 0 0 0 3 3
VLAN0014 0 0 0 3 3
---------------------- -------- --------- -------- ---------- ----------
5 vlans 4 0 0 11 15
!
SWITCH_4#sh span blockedports
Name Blocked Interfaces List
-------------------- ------------------------------------
VLAN0011 Gi1/0/1, Gi1/0/24
VLAN0012 Gi1/0/13, Gi1/0/24
Number of blocked ports (segments) in the system : 4
!
SWITCH_4#sh spanning-tree det
VLAN0001 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, sysid 1, address 0012.7fb4.f300
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree
Topology change flag not set, detected flag not set
Number of topology changes 9 last change occurred 2d22h ago
from GigabitEthernet1/0/24
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 1, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0001 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 32769, address 0012.7fb4.f300
Designated bridge has priority 32769, address 0012.7fb4.f300
Designated port id is 128.1, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 126414, received 0
Port 13 (GigabitEthernet1/0/13) of VLAN0001 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 32769, address 0012.7fb4.f300
Designated bridge has priority 32769, address 0012.7fb4.f300
Designated port id is 128.13, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 127099, received 296
Port 24 (GigabitEthernet1/0/24) of VLAN0001 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 32769, address 0012.7fb4.f300
Designated bridge has priority 32769, address 0012.7fb4.f300
Designated port id is 128.24, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 125742, received 2
VLAN0011 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 12288, sysid 11, address 0012.7fb4.f300
Configured hello time 2, max age 20, forward delay 15
Current root has priority 0, address 0004.9603.8990
Root port is 13 (GigabitEthernet1/0/13), cost of root path is 19
Topology change flag not set, detected flag not set
Number of topology changes 10 last change occurred 2d22h ago
from GigabitEthernet1/0/1
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0011 is blocking
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 0, address 0004.9603.8990
Designated bridge has priority 4096, address 0004.9615.fee0
Designated port id is 64.1, designated path cost 19
Timers: message age 3, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 370, received 126367
Port 13 (GigabitEthernet1/0/13) of VLAN0011 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 0, address 0004.9603.8990
Designated bridge has priority 0, address 0004.9603.8990
Designated port id is 64.17, designated path cost 0
Timers: message age 1, forward delay 0, hold 0
Number of transitions to forwarding state: 2
Link type is point-to-point by default
BPDU: sent 533, received 126750
Port 24 (GigabitEthernet1/0/24) of VLAN0011 is blocking
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 0, address 0004.9603.8990
Designated bridge has priority 8203, address 0012.7fb5.6e00
Designated port id is 128.24, designated path cost 19
Timers: message age 3, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 1, received 126051
VLAN0012 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 8192, sysid 12, address 0012.7fb4.f300
Configured hello time 2, max age 20, forward delay 15
Current root has priority 0, address 0004.9615.fee0
Root port is 1 (GigabitEthernet1/0/1), cost of root path is 19
Topology change flag not set, detected flag not set
Number of topology changes 10 last change occurred 2d22h ago
from GigabitEthernet1/0/13
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0012 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 0, address 0004.9615.fee0
Designated bridge has priority 0, address 0004.9615.fee0
Designated port id is 64.1, designated path cost 0
Timers: message age 1, forward delay 0, hold 0
Number of transitions to forwarding state: 2
Link type is point-to-point by default
BPDU: sent 382, received 126354
Port 13 (GigabitEthernet1/0/13) of VLAN0012 is blocking
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 0, address 0004.9615.fee0
Designated bridge has priority 4096, address 0004.9603.8990
Designated port id is 64.17, designated path cost 19
Timers: message age 3, forward delay 0, hold 0
Number of transitions to forwarding state: 2
Link type is point-to-point by default
BPDU: sent 432, received 126856
Port 24 (GigabitEthernet1/0/24) of VLAN0012 is blocking
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 0, address 0004.9615.fee0
Designated bridge has priority 4108, address 0012.7fb5.6e00
Designated port id is 128.24, designated path cost 19
Timers: message age 3, forward delay 0, hold 0
Number of transitions to forwarding state: 0
Link type is point-to-point by default
BPDU: sent 1, received 126054
VLAN0013 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 4096, sysid 13, address 0012.7fb4.f300
Configured hello time 2, max age 20, forward delay 15
Current root has priority 13, address 0012.7fb5.6e00
Root port is 24 (GigabitEthernet1/0/24), cost of root path is 4
Topology change flag not set, detected flag not set
Number of topology changes 14 last change occurred 2d22h ago
from GigabitEthernet1/0/1
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0013 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 13, address 0012.7fb5.6e00
Designated bridge has priority 4109, address 0012.7fb4.f300
Designated port id is 128.1, designated path cost 4
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 3
Link type is point-to-point by default
BPDU: sent 126306, received 129
Port 13 (GigabitEthernet1/0/13) of VLAN0013 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 13, address 0012.7fb5.6e00
Designated bridge has priority 4109, address 0012.7fb4.f300
Designated port id is 128.13, designated path cost 4
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 2
Link type is point-to-point by default
BPDU: sent 126843, received 136
Port 24 (GigabitEthernet1/0/24) of VLAN0013 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 13, address 0012.7fb5.6e00
Designated bridge has priority 13, address 0012.7fb5.6e00
Designated port id is 128.24, designated path cost 0
Timers: message age 1, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 2, received 125747
VLAN0014 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 0, sysid 14, address 0012.7fb4.f300
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree
Topology change flag not set, detected flag not set
Number of topology changes 11 last change occurred 2d22h ago
from GigabitEthernet1/0/24
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 1, topology change 0, notification 0, aging 300
Port 1 (GigabitEthernet1/0/1) of VLAN0014 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.1.
Designated root has priority 14, address 0012.7fb4.f300
Designated bridge has priority 14, address 0012.7fb4.f300
Designated port id is 128.1, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 126426, received 6
Port 13 (GigabitEthernet1/0/13) of VLAN0014 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.13.
Designated root has priority 14, address 0012.7fb4.f300
Designated bridge has priority 14, address 0012.7fb4.f300
Designated port id is 128.13, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 2
Link type is point-to-point by default
BPDU: sent 126900, received 81
Port 24 (GigabitEthernet1/0/24) of VLAN0014 is forwarding
Port path cost 4, Port priority 128, Port Identifier 128.24.
Designated root has priority 14, address 0012.7fb4.f300
Designated bridge has priority 14, address 0012.7fb4.f300
Designated port id is 128.24, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 125748, received 2
SWITCH_4#
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