Use the saved output to draw the spanning tree as seen by the bridges after the spanning tree has been rebuilt. For each bridge, indicate the root port, the designated ports, and the blocked ports. Briefly explain the changes of the spanning tree.

Question

What will be an ideal response?

Answer 1

```
[root@PC1 lab6]# ping -i 1 10.0.1.41
PING 10.0.1.41 (10.0.1.41) 56(84) bytes of data.
64 bytes from 10.0.1.41: icmp_seq=1 ttl=64 time=3.75 ms
64 bytes from 10.0.1.41: icmp_seq=2 ttl=64 time=1.11 ms
64 bytes from 10.0.1.41: icmp_seq=3 ttl=64 time=1.10 ms
From 10.0.1.11 icmp_seq=49 Destination Host Unreachable
From 10.0.1.11 icmp_seq=50 Destination Host Unreachable
From 10.0.1.11 icmp_seq=51 Destination Host Unreachable
64 bytes from 10.0.1.41: icmp_seq=52 ttl=64 time=1007 ms
64 bytes from 10.0.1.41: icmp_seq=53 ttl=64 time=8.51 ms
64 bytes from 10.0.1.41: icmp_seq=54 ttl=64 time=1.83 ms
64 bytes from 10.0.1.41: icmp_seq=55 ttl=64 time=1.83 ms
64 bytes from 10.0.1.41: icmp_seq=56 ttl=64 time=1.82 ms
64 bytes from 10.0.1.41: icmp_seq=57 ttl=64 time=1.83 ms
64 bytes from 10.0.1.41: icmp_seq=58 ttl=64 time=1.80 ms
--- 10.0.1.41 ping statistics ---
58 packets transmitted, 10 received, +3 errors, 82% packet loss, time 57076ms
rtt min/avg/max/mdev = 1.100/103.156/1007.945/301.603 ms, pipe 3

Router1#show spa
Bridge group 1 is executing the IEEE compatible Spanning Tree protocol
Bridge Identifier has priority 128, address 0007.50c4.8d60
Configured hello time 2, max age 20, forward delay 15
Current root has priority 128, address 0006.5b4b.e1da
Root port is 3 (Ethernet0/1), cost of root path is 200
Port Number size is 9
Topology change flag not set, detected flag not set
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0
bridge aging time 300
Port 2 (Ethernet0/0) of Bridge group 1 is forwarding
Port path cost 100, Port priority 128
Designated root has priority 128, address 0006.5b4b.e1da
Designated bridge has priority 128, address 0007.50c4.8d60
Designated port is 2, path cost 200
Timers: message age 0, forward delay 0, hold 0
BPDU: sent 4, received 624

Port 3 (Ethernet0/1) of Bridge group 1 is forwarding
Port path cost 100, Port priority 128
Designated root has priority 128, address 0006.5b4b.e1da
Designated bridge has priority 128, address 0007.50c4.7780
Designated port is 3, path cost 100
Timers: message age 2, forward delay 0, hold 0
BPDU: sent 1, received 701

Router2#show spanning-tree
Bridge group 1 is executing the IEEE compatible Spanning Tree protocol
Bridge Identifier has priority 128, address 0007.50c4.7780
Configured hello time 2, max age 20, forward delay 15
Current root has priority 128, address 0006.5b4b.e1da
Root port is 2 (Ethernet0/0), cost of root path is 100
Port Number size is 9
Topology change flag not set, detected flag not set
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0
bridge aging time 300
Port 2 (Ethernet0/0) of Bridge group 1 is forwarding
Port path cost 100, Port priority 128
Designated root has priority 128, address 0006.5b4b.e1da
Designated bridge has priority 128, address 0006.5b4b.e1da
Designated port is 1, path cost 0
Timers: message age 2, forward delay 0, hold 0
BPDU: sent 4, received 714

Port 3 (Ethernet0/1) of Bridge group 1 is forwarding
Port path cost 100, Port priority 128
Designated root has priority 128, address 0006.5b4b.e1da
Designated bridge has priority 128, address 0007.50c4.7780
Designated port is 3, path cost 100
Timers: message age 0, forward delay 0, hold 0
BPDU: sent 0, received 6

Router3#show spanning-tree
Bridge group 1 is executing the IEEE compatible Spanning Tree protocol
Bridge Identifier has priority 128, address 0007.853b.5e40
Configured hello time 2, max age 20, forward delay 15
Current root has priority 128, address 0006.5b4b.e1da
Root port is 2 (Ethernet0/0), cost of root path is 100
Port Number size is 9
Topology change flag not set, detected flag not set
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0
bridge aging time 300
Port 2 (Ethernet0/0) of Bridge group 1 is forwarding
Port path cost 100, Port priority 128
Designated root has priority 128, address 0006.5b4b.e1da
Designated bridge has priority 128, address 0006.5b4b.e1da
Designated port is 1, path cost 0
Timers: message age 2, forward delay 0, hold 0
BPDU: sent 3, received 787

Port 3 (Ethernet0/1) of Bridge group 1 is forwarding
Port path cost 100, Port priority 128
Designated root has priority 128, address 0006.5b4b.e1da
Designated bridge has priority 128, address 0007.853b.5e40
Designated port is 3, path cost 100
Timers: message age 0, forward delay 0, hold 0
BPDU: sent 3, received 19

Router4#show sp
Bridge group 1 is executing the IEEE compatible Spanning Tree protocol
Bridge Identifier has priority 128, address 0007.50c1.0700
Configured hello time 2, max age 20, forward delay 15
Current root has priority 128, address 0006.5b4b.e1da
Root port is 3 (Ethernet0/1), cost of root path is 200
Port Number size is 9
Topology change flag not set, detected flag not set
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0
bridge aging time 300
Port 2 (Ethernet0/0) of Bridge group 1 is blocking
Port path cost 100, Port priority 128
Designated root has priority 128, address 0006.5b4b.e1da
Designated bridge has priority 128, address 0007.853b.5e40
Designated port is 3, path cost 100
Timers: message age 3, forward delay 0, hold 0
BPDU: sent 3, received 783
Port 3 (Ethernet0/1) of Bridge group 1 is forwarding
Port path cost 100, Port priority 128
Designated root has priority 128, address 0006.5b4b.e1da
Designated bridge has priority 128, address 0007.50c4.7780
Designated port is 3, path cost 100
Timers: message age 3, forward delay 0, hold 0
BPDU: sent 3, received 773
```