port channel from 2960 to Cisco Core 6513

[david.klein]

I have a Cisco 6513 Core Switch, which is in a vtp domain and the core is the Server.  There are a number of other port channels going from the 6513 to other 2960 switch stacks.  The other switch stacks are in vtp client mode and are getting all vlans form the Server 6513 within this vtp domain.

I am trying to connect 2 - 2960S FPD L switches, which are connected together via flex module/flex cable.  I have 2 sfp's in the sfp ports on one of these switches and am creating one port channel of 20G(2 10G ports Te1/0/1 and Te1/0/2) going to two 10Gig ports on the Cisco 6513(Te9/7 and Te9/8) as a port channel created on the 6513 end. 

I want to know first of all if it is possible to keep the 2960's in transparent mode and only allow 2 vlans to go to these 2 2960's.  I don't need all vlans on these switches, and the other 2960 stacks going to the 6513 do have all vlans and are in the vtp domain.  This one would only all vlans 4, and 20.

Can someone give me an example of the setup on each end to make this work?  I have tried and get a subnet mask error, so I must be going something wrong.  The vlans:  vlan 4: 10.35.3.0/22 and vlan 20 :  10.35.20.0/24 would be the only ones I would want to tag ports for on these 2 2960 switches in transparent mode.

Wanted to also setup a management interface for vlan 20 so I can remotely connect to 2960 stack.  It would be 10.35.20.30 for the int management IP.

Thanks in advance

Dave 

[Aref Alsouqi]

Hi,

Both end switches trunk ports have to be set with same trunk encapsulation, in your case the switch 6513 trunk encapsulation has to be set to dot1qThere are some requirements when using ether channel, like all physical interfaces have to have same duplex and speed and to be in the same vlan or all in same trunk link carrying same vlans and none of them can be a span port.

Aref

[david.klein]

Do I need to have Pagp protocol enabled? right now I have nothing

[david.klein]

Attached is some port information on the port channel on the 2960 end.

The port channel came up, but only one of the 10 gig ports is coming up .

Te1/0/1 and Te1/0/2 are part of this port channel but only Te1/0/1 comes up and for some reason when I show int on P01 on the 2960 it only shows Te1/0/1 as a member.

See attached