Hi, I have an odd question. We have a Cisco WS-C2950T-24 that was working fine until we changed the device it is directly connected to for its uplink. The switch was connected to a gig port on a 3550 and was reachable. It is now connected to a gig port on a 6509. The strange thing is, it passes traffic to all the devices conencted to it and even to another 3550 connected via a gig port. We just can't seem to ping or connect to the switch itself. Management VLAN is 32. The fact that it works on the the 3550 which has to pass through the 2950, tells me that the VLAN is trunking through. A show vlan on the 2950 shows it active and a show int vlan 32 on the 2950 shows it up/up. Below is how these are configured and connected. Anyone ever seen this before?
3550-----gig0/1 to gig0/1-----2950T----gig0/2 to gig1/1-----6509 >From the 6509, VLANs 2-299 are trunked to the 2950. Those same VLANs are trunked from the 2950 to the 3550. ! <-------3550-------> All devices including the 3550 itself are reachable. ! interface GigabitEthernet0/1 description UPLINK from 3550 to gig0/2 c2950T switchport trunk encapsulation dot1q switchport trunk allowed vlan 2-299 switchport mode trunk load-interval 30 ! ! <-------2950T-------> All devices on the 2950T are reachable except for the switch itself. ! interface GigabitEthernet0/2 description UPLINK from 2950T to gig0/1 c3550 switchport trunk allowed vlan 2-299 switchport mode trunk load-interval 30 ! ! interface GigabitEthernet0/2 description UPLINK from 2950T to gig1/1.c6509-a switchport trunk allowed vlan 2-299 switchport mode trunk speed 1000 duplex full load-interval 30 ! ! <--------6509--------> All devices are reachable on the 6509 and all devices on the other two switches are reachable except we can't ping or login to the 2950T. We can reach and login to the 3550 from the 6509. ! interface GigabitEthernet1/1 description GigE trunk to OFFICE SWITCHES switchport switchport trunk encapsulation dot1q switchport trunk allowed vlan 2-299 switchport mode trunk no ip address load-interval 30 ! -Lee _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
