connect Cisco 4506 to Cisco3550 via gigaport on static access mode

Posted on 2007-11-15
Last Modified: 2010-04-21
Cisco 4506 is configure w/ as follows:
vlan 5
interface Vlan5              
 ip address up  
interface GigabitEthernet2/4                            
 switchport access vlan 5                        
 switchport mode access

Cisco 3550 is configure
interface GigabitEthernet0/2
 description B48(mibzzx) link
 switchport access vlan 5
 switchport mode access
apply cdp neighbors is seen on both devices and vlan are active. however no traffic flow as can not ping any device from to and from either device.
Request urgent resolution to complete this project this week
Question by:fredsanmateo
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LVL 50

Accepted Solution

Don Johnston earned 500 total points
ID: 20293492
If the 4506 can see the 3550 in it's CDP table, traffic is flowing.

Make sure the devices in question are in VLAN 5 and that they have IP addresses on the network.

Author Comment

ID: 20296144

I now have it connected. In cat3550 all other ports were in native vlan 1, hence not talking to port w/ vlan 5 that is  link to cat4506. I assumed that vlan 1 always propagated no need to trunk.

My solution was to port needing connection to cat4506 must also be in switchport access vlan 5

Author Closing Comment

ID: 31409462
Need to instruct that other ports must also be switcport access mode vlan 5

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LVL 50

Expert Comment

by:Don Johnston
ID: 20297647
So the problem was that the other devices weren't in VLAN 5?

Author Comment

ID: 20298065
All devices were on same switch and the ports were in vlan 1 as no configuration were made on interfaces. The switch was made w/  vlan 1 set to 255..255.255.0. . And vlan 5 was added in attempt to connect to another device via the cat4506. Hence the entry swithport access vlan 5 on this gigaport uplink.
We now assume if the switchport interface is set to swtchport access vlan 5 that it will also carry vlan 1so it can talk w/ the other port on same switch that is
not configured to switchport access vlan 5
I appreciate the feedback and seek to join extend my menbership. Looking forward  and thanks Mr donjohnston
LVL 50

Expert Comment

by:Don Johnston
ID: 20298479
I'm assuming you're not already aware of the grading criteria so please refer to this link:

"Remember, the Expert helping you today is probably going to be helping you next time you post a question. Give them a fair chance to earn an 'Excellent!' grade and they'll provide you with some amazing support. It's also true that a "C" is the lowest grade you can give, and the Experts know that -- so use it judiciously."


Author Comment

ID: 20299498
Hi donjohnston,
I am a newbee and unfamiliar. I regret closing the querry as it appear we continue to have issues. I will open a new querry following on the same devices. No changes made to cat4506. The issue is on cat3550. I trust you will kindly provide your expertise.
Many thanks,

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