[c-nsp] Cisco 6509 LACP

Mike Glass MGlass at lccountymt.gov
Mon Feb 11 12:36:01 EST 2013


Here are the results
 
----------------
6509
----------------
#sh spanning-tree int port-channel 1---------------
 
Vlan             Role Sts Cost      Prio.Nbr Type
---------------- ---- --- --------- --------
--------------------------------
VLAN0002         Desg FWD 3         128.1665 P2p
VLAN0004         Desg FWD 3         128.1665 P2p
Cat6509#
------------------------------------------------------------------------------------------------
 
-----------------
force10
-----------------
AIS-Prod-1#sh spanning-tree rstp int Port-channel 1
 
Port-channel 1 is designated forwarding
 
Edge port:no (default) port guard :none (default)
Link type: point-to-point (auto) bpdu filter:disable (default)
Bpdu guard :disable bpduguard shutdown-on-violation : disable
Bpdus sent 25200, received 135714
 
Interface                                            Designated
 Name     PortID   Prio Cost    Sts       Cost       Bridge ID        
PortID
--------- -------- ---- ------- --------- ------- --------------------
--------
Po 1      128.2    128  18000   FWD       0       32768 0001.e88b.52b8
128.2
AIS-Prod-1#sh spanning-tree rstp int Port-channel 2
 
Port-channel 2 is designated forwarding
 
Edge port:no (default) port guard :none (default)
Link type: point-to-point (auto) bpdu filter:disable (default)
Bpdu guard :disable bpduguard shutdown-on-violation : disable
Bpdus sent 129288, received 0
 
Interface                                            Designated
 Name     PortID   Prio Cost    Sts       Cost       Bridge ID        
PortID
--------- -------- ---- ------- --------- ------- --------------------
--------
Po 2      128.3    128  1800    FWD       0       32768 0001.e88b.52b8
128.3
-------------------------------------------------------------------------------------------------------------------
 
The Dell switch does has not have cdp, just lldp, on the cisco switch I
see nothing in cdp for the interfaces, the dell lldp I do see the vmware
interfaces.
I have switched to mode active with same results.
 
I have not configured address on the vlans, not sure if that will break
anything in our existing system, If I do put ip address on a vlan on our
production system will it cause any problems?
The force 10 vlans are tagged for vlans 4 and 2
 
interface Vlan 4
 no ip address
 tagged Port-channel 1-2
 no shutdown
 
when I shut the port-channel off on either switch I see messages on
both switches that eh protocol is down, so I think I am close but still
cannot pass traffic from the a vm guest.
I also wonder if I already have the Vmware server hooked up to the 6509
on another interface that uses the same vlan could be causing some
problems.
Thanks
Mike


>>> Tóth András<diosbejgli at gmail.com> 2/10/2013 1:42 PM >>>
Hi Mike,

First of all, how do you see that traffic is not passing? Could you
please elaborate on how do you test it, from where to where are you
trying to send traffic or ping tests? Does traffic pass if links are
used as standalone (not being in a channel)?

If you configure an IP address for each vlan interface, can you ping
between the 6500 and the force10? If yes, the problem might be between
the vmware and force10 instead.

Are the force10 ports configured for dot1q trunk as well to be able to
carry multiple vlans? Are they set with the same native vlan as the
Cisco? (Default native vlan is 1)

Could you do a sh spanning-tree on both switches for the po interfaces
to make sure they are not blocking? sh span int po1

Do you see the correct neighbors in cdp table? sh cdp nei

Can you confirm that the same issue is observed when using 'mode
active'?

Best regards,
Andras



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