Admin73
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Trunk connection not working
Hello Experts,
I setup a trunk connection between a cisco switch 4507 and 3750. However, I am not getting any communication between the two switchs.
This is the port on the 4507:
interface GigabitEthernet3/43
description TRUNK
switchport trunk encapsulation dot1q
switchport mode trunk
service-policy output VoipPolicy
and this is the port on the 3750:
interface GigabitEthernet1/0/48
description TRUNK
switchport trunk encapsulation dot1q
switchport mode trunk
routes on 4507:
ip default-gateway 172.31.14.11
ip route 0.0.0.0 0.0.0.0 172.31.14.11
ip route 192.168.0.0 255.255.255.0 192.168.0.11
ip route 192.168.31.0 255.255.255.192 172.31.14.97
routes on the 3750:
ip default-gateway 172.31.14.11
ip classless
ip route 0.0.0.0 0.0.0.0 172.31.14.11
ip route 172.31.1.0 255.255.255.0 172.20.14.1
ip route 172.31.14.0 255.255.255.0 172.20.14.1
ip route 172.31.15.0 255.255.255.0 172.20.14.1
ip route 172.31.31.0 255.255.255.0 172.20.14.1
ip route 172.31.69.0 255.255.255.0 172.20.14.1
I setup a trunk connection between a cisco switch 4507 and 3750. However, I am not getting any communication between the two switchs.
This is the port on the 4507:
interface GigabitEthernet3/43
description TRUNK
switchport trunk encapsulation dot1q
switchport mode trunk
service-policy output VoipPolicy
and this is the port on the 3750:
interface GigabitEthernet1/0/48
description TRUNK
switchport trunk encapsulation dot1q
switchport mode trunk
routes on 4507:
ip default-gateway 172.31.14.11
ip route 0.0.0.0 0.0.0.0 172.31.14.11
ip route 192.168.0.0 255.255.255.0 192.168.0.11
ip route 192.168.31.0 255.255.255.192 172.31.14.97
routes on the 3750:
ip default-gateway 172.31.14.11
ip classless
ip route 0.0.0.0 0.0.0.0 172.31.14.11
ip route 172.31.1.0 255.255.255.0 172.20.14.1
ip route 172.31.14.0 255.255.255.0 172.20.14.1
ip route 172.31.15.0 255.255.255.0 172.20.14.1
ip route 172.31.31.0 255.255.255.0 172.20.14.1
ip route 172.31.69.0 255.255.255.0 172.20.14.1
John Meggers
How are you determining you don't have communication between the switches? Do you have VLAN interfaces on both switches in the same VLAN (and subnet) that you could ping between? Are VLANs up on the switches, and in an active state? Are the trunk ports up?
ASKER
Yes the trunk ports are up, I am trying to ping one vlan interface to the other switch but no replies
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ASKER
All the vlans are configured on both switches and they are known so I don'y think the issue is there
can you post the configs?
ASKER
which configs?
of the two switches ...
ASKER
Thanks!